| Message ID | 20151013234712.GA23406@localhost.localdomain (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Felipe, hi Ladislav, On Wed, Oct 14, 2015 at 1:47 AM, Ladislav Michl <ladis@linux-mips.org> wrote: > On Mon, Aug 31, 2015 at 03:11:58PM +0200, Yegor Yefremov wrote: >> Hi Felipe, >> >> On Fri, Aug 7, 2015 at 12:57 PM, Yegor Yefremov >> <yegorslists@googlemail.com> wrote: >> > On Fri, Aug 7, 2015 at 12:16 PM, Yegor Yefremov >> > <yegorslists@googlemail.com> wrote: >> >> On Thu, Aug 6, 2015 at 4:21 PM, Felipe Balbi <balbi@ti.com> wrote: >> >>> HI, >> >>> >> >>> On Thu, Aug 06, 2015 at 09:40:26AM +0200, Yegor Yefremov wrote: >> >>>> I performed a stress test with several FT4232H chips connected to a >> >>> >> >>> how many ? >> >> >> >> # lsusb -t >> >> /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=musb-hdrc/1p, 480M >> >> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=musb-hdrc/1p, 480M >> >> |__ Port 1: Dev 2, If 0, Class=, Driver=hub/4p, 480M >> >> |__ Port 1: Dev 3, If 0, Class=, Driver=ftdi_sio, 480M >> >> |__ Port 1: Dev 3, If 1, Class=, Driver=ftdi_sio, 480M >> >> |__ Port 1: Dev 3, If 2, Class=, Driver=ftdi_sio, 480M >> >> |__ Port 1: Dev 3, If 3, Class=, Driver=ftdi_sio, 480M >> >> |__ Port 2: Dev 4, If 0, Class=, Driver=ftdi_sio, 480M >> >> |__ Port 2: Dev 4, If 1, Class=, Driver=ftdi_sio, 480M >> >> |__ Port 2: Dev 4, If 2, Class=, Driver=ftdi_sio, 480M >> >> |__ Port 2: Dev 4, If 3, Class=, Driver=ftdi_sio, 480M >> >> |__ Port 3: Dev 5, If 0, Class=, Driver=ftdi_sio, 480M >> >> |__ Port 3: Dev 5, If 1, Class=, Driver=ftdi_sio, 480M >> >> |__ Port 3: Dev 5, If 2, Class=, Driver=ftdi_sio, 480M >> >> |__ Port 3: Dev 5, If 3, Class=, Driver=ftdi_sio, 480M >> >> >> >> 3 chips a 4-ports are attached. >> > >> > Warnings appear on another device (without internal hub) with only one >> > FT4232H too: >> > >> > # lsusb -t >> > /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=musb-hdrc/1p, 480M >> > |__ Port 1: Dev 2, If 0, Class=, Driver=ftdi_sio, 480M >> > |__ Port 1: Dev 2, If 1, Class=, Driver=ftdi_sio, 480M >> > |__ Port 1: Dev 2, If 2, Class=, Driver=ftdi_sio, 480M >> > |__ Port 1: Dev 2, If 3, Class=, Driver=ftdi_sio, 480M >> > >> >>>> hub, that is attached to one of the musb ports. So far the test was >> >>>> successful for several hours. But I've seen following warnings: >> >>>> >> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >> >>>> musb_ep_program 931: broken !rx_reinit, ep5 csr 0203 >> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >> >>>> musb_ep_program 931: broken !rx_reinit, ep5 csr 0003 >> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >> >>>> musb_ep_program 931: broken !rx_reinit, ep7 csr 0003 >> >>>> >> >>>> Is this expected behavior? >> >>> >> >>> no, that shouldn't happen, but it does and, apparently, in more than one >> >>> implementation. Wondering if you're running into endpoint limitation due >> >>> to MUSB's poor transfer scheduling for non-bulk endpoints. > > To add more: > kernel 4.2.0 on AM3703 musb in DMA mode with Quectel U15 modem plugged: > /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=musb-hdrc/1p, 480M > |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M > |__ Port 4: Dev 3, If 0, Class=Vendor Specific Class, Driver=option, 480M > |__ Port 4: Dev 3, If 1, Class=Vendor Specific Class, Driver=option, 480M > |__ Port 4: Dev 3, If 2, Class=Vendor Specific Class, Driver=option, 480M > |__ Port 4: Dev 3, If 3, Class=Vendor Specific Class, Driver=option, 480M > |__ Port 4: Dev 3, If 4, Class=Vendor Specific Class, Driver=option, 480M > /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-omap/3p, 480M > > musb_ep_program 931: broken !rx_reinit, ep2 csr a203 > musb_host_rx 1973: Rx interrupt with no errors or packet! > musb_ep_program 931: broken !rx_reinit, ep5 csr a203 > musb_host_rx 1973: Rx interrupt with no errors or packet! > > and in both PIO and DMA mode write to device ends this way: > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 146 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0x84/0xb8() > Could not flush host TX2 fifo: csr: 2003 > Modules linked in: option usb_wwan usbserial snd_soc_omap_twl4030 cpufreq_dt snd_soc_omap_mcbsp snd_soc_omap snd_soc_twl4030 snd_pcm_dmaengine omap_aes snd_soc_core omap_sham omap_mailbox s > CPU: 0 PID: 146 Comm: ModemManager Not tainted 4.2.0 #3 > Hardware name: Generic OMAP36xx (Flattened Device Tree) > [<c0013ad4>] (unwind_backtrace) from [<c0011be8>] (show_stack+0x10/0x14) > [<c0011be8>] (show_stack) from [<c003181c>] (warn_slowpath_common+0x84/0xac) > [<c003181c>] (warn_slowpath_common) from [<c0031870>] (warn_slowpath_fmt+0x2c/0x3c) > [<c0031870>] (warn_slowpath_fmt) from [<c02e6a64>] (musb_h_tx_flush_fifo+0x84/0xb8) > [<c02e6a64>] (musb_h_tx_flush_fifo) from [<c02e7ee0>] (musb_cleanup_urb.isra.13+0xa0/0x12c) > [<c02e7ee0>] (musb_cleanup_urb.isra.13) from [<c02e8060>] (musb_urb_dequeue+0xf4/0x114) > [<c02e8060>] (musb_urb_dequeue) from [<c02cdda0>] (usb_hcd_unlink_urb+0x60/0x7c) > [<c02cdda0>] (usb_hcd_unlink_urb) from [<c02ceb9c>] (usb_kill_urb+0x4c/0xc4) > [<c02ceb9c>] (usb_kill_urb) from [<bf1638d8>] (usb_wwan_close+0x94/0xb0 [usb_wwan]) > [<bf1638d8>] (usb_wwan_close [usb_wwan]) from [<c025d0cc>] (tty_port_shutdown+0x7c/0x88) > [<c025d0cc>] (tty_port_shutdown) from [<c025d9a0>] (tty_port_close+0x24/0x58) > [<c025d9a0>] (tty_port_close) from [<c0256494>] (tty_release+0x128/0x40c) > [<c0256494>] (tty_release) from [<c00c9aa0>] (__fput+0xd4/0x1a4) > [<c00c9aa0>] (__fput) from [<c004937c>] (task_work_run+0x9c/0xb0) > [<c004937c>] (task_work_run) from [<c0011688>] (do_work_pending+0xa0/0xb8) > [<c0011688>] (do_work_pending) from [<c000e904>] (work_pending+0xc/0x20) > ---[ end trace b14c1d9333664980 ]--- > > and device (U15) does not work. Also any other device pluged into that hub > after warning is printed does not work any more (udlfb worked before). > > Just for completeness, here's a patch used: > --- linux-4.2/drivers/usb/serial/option.c.orig 2015-10-13 02:43:23.363254239 +0200 > +++ linux-4.2/drivers/usb/serial/option.c 2015-10-13 02:44:24.663254239 +0200 > @@ -1097,6 +1097,7 @@ > { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ > { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */ > { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */ > + { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9090)}, /* QUECTEL UC15 */ > { USB_DEVICE_INTERFACE_CLASS(SIERRA_VENDOR_ID, 0x68c0, 0xff), > .driver_info = (kernel_ulong_t)&sierra_mc73xx_blacklist }, /* MC73xx */ > { USB_DEVICE_INTERFACE_CLASS(SIERRA_VENDOR_ID, 0x9041, 0xff), > >> Now I have another trouble with msub and FTDI FT4232H chip. If I start >> something like this on all 4 ports at 115200b/s, then pull USB cable >> and the system freezes: >> >> cat /dev/urandom > /dev/ttyUSB0 >> ... >> cat /dev/urandom > /dev/ttyUSB3 >> >> I see these messages: >> >> ftdi_sio ttyUSB3: usb_serial_generic_write_bulk_callback - nonzero urb >> status: -110 >> ftdi_sio ttyUSB0: usb_serial_generic_write_bulk_callback - nonzero urb >> status: -110 >> ftdi_sio ttyUSB1: usb_serial_generic_write_bulk_callback - nonzero urb >> status: -110 >> ftdi_sio ttyUSB2: usb_serial_generic_write_bulk_callback - nonzero urb >> status: -110 >> ftdi_sio ttyUSB3: usb_serial_generic_write_bulk_callback - nonzero urb >> status: -110 >> ftdi_sio ttyUSB0: usb_serial_generic_write_bulk_callback - nonzero urb >> status: -110 >> ftdi_sio ttyUSB1: usb_serial_generic_write_bulk_callback - nonzero urb >> status: -110 >> ftdi_sio ttyUSB2: usb_serial_generic_write_bulk_callback - nonzero urb >> status: -110 >> ftdi_sio ttyUSB3: usb_serial_generic_write_bulk_callback - nonzero urb >> status: -110 >> >> After them system reboots as my watchdog time expires. >> >> Kernel 4.2.0-rc5 >> >> Older FTDI chips like FT2232 have no problems. Somehow is musb really >> allergic to FTDI and vice versa :-( > > That probably depends on transfer size... Have another musb crash, when I insert TP-Link MA260. Crash log with linux-4.3.3 usb 1-1.2: new high-speed USB device number 9 using musb-hdrc usb-storage 1-1.2:1.0: USB Mass Storage device detected scsi host12: usb-storage 1-1.2:1.0 usb 1-1.2: USB disconnect, device number 9 usb 1-1.2: new high-speed USB device number 10 using musb-hdrc option 1-1.2:1.0: GSM modem (1-port) converter detected usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB0 option 1-1.2:1.1: GSM modem (1-port) converter detected usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB1 usb-storage 1-1.2:1.2: USB Mass Storage device detected scsi host13: usb-storage 1-1.2:1.2 option 1-1.2:1.3: GSM modem (1-port) converter detected usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB2 qmi_wwan 1-1.2:1.4: cdc-wdm0: USB WDM device qmi_wwan 1-1.2:1.4 wwan0: register 'qmi_wwan' at usb-musb-hdrc.0.auto-1.2, WWAN/QMI device, 26:ff:72:84:92:10 scsi 13:0:0:0: CD-ROM TP-LINK MMC Storage 2.31 PQ: 0 ANSI: 2 scsi 13:0:0:1: Direct-Access TP-LINK MMC Storage 2.31 PQ: 0 ANSI: 2 sd 13:0:0:1: [sda] Attached SCSI removable disk # # # m------------[ cut here ]------------ WARNING: CPU: 0 PID: 897 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0xc4/0xe4() Could not flush host TX2 fifo: csr: 2403 Modules linked in: musb_dsps musb_am335x CPU: 0 PID: 897 Comm: ModemManager Not tainted 4.3.3 #1 Hardware name: Generic AM33XX (Flattened Device Tree) [<c0017bfc>] (unwind_backtrace) from [<c0013f3c>] (show_stack+0x10/0x14) [<c0013f3c>] (show_stack) from [<c02b247c>] (dump_stack+0x84/0x9c) [<c02b247c>] (dump_stack) from [<c003db70>] (warn_slowpath_common+0x7c/0xb8) [<c003db70>] (warn_slowpath_common) from [<c003dbdc>] (warn_slowpath_fmt+0x30/0x40) [<c003dbdc>] (warn_slowpath_fmt) from [<c0412a54>] (musb_h_tx_flush_fifo+0xc4/0xe4) [<c0412a54>] (musb_h_tx_flush_fifo) from [<c0413e78>] (musb_cleanup_urb+0xbc/0x130) [<c0413e78>] (musb_cleanup_urb) from [<c04144f4>] (musb_urb_dequeue+0xf0/0x128) [<c04144f4>] (musb_urb_dequeue) from [<c03e3544>] (usb_hcd_unlink_urb+0x50/0x84) [<c03e3544>] (usb_hcd_unlink_urb) from [<c03e4788>] (usb_kill_urb+0x4c/0xc4) [<c03e4788>] (usb_kill_urb) from [<c040e794>] (usb_wwan_close+0xbc/0xf0) [<c040e794>] (usb_wwan_close) from [<c030cbb4>] (tty_port_shutdown+0x90/0x9c) [<c030cbb4>] (tty_port_shutdown) from [<c030d2f8>] (tty_port_close+0x24/0x4c) [<c030d2f8>] (tty_port_close) from [<c0304d9c>] (tty_release+0xec/0x4b8) [<c0304d9c>] (tty_release) from [<c0145b74>] (__fput+0x80/0x1d0) [<c0145b74>] (__fput) from [<c005c24c>] (task_work_run+0x8c/0xc0) [<c005c24c>] (task_work_run) from [<c0013904>] (do_work_pending+0x8c/0xb4) [<c0013904>] (do_work_pending) from [<c000f7e8>] (slow_work_pending+0xc/0x20) ---[ end trace 951f2d08e0a22b2a ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 897 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0xc4/0xe4() Could not flush host TX2 fifo: csr: 2403 Modules linked in: musb_dsps musb_am335x CPU: 0 PID: 897 Comm: ModemManager Tainted: G W 4.3.3 #1 Hardware name: Generic AM33XX (Flattened Device Tree) [<c0017bfc>] (unwind_backtrace) from [<c0013f3c>] (show_stack+0x10/0x14) [<c0013f3c>] (show_stack) from [<c02b247c>] (dump_stack+0x84/0x9c) [<c02b247c>] (dump_stack) from [<c003db70>] (warn_slowpath_common+0x7c/0xb8) [<c003db70>] (warn_slowpath_common) from [<c003dbdc>] (warn_slowpath_fmt+0x30/0x40) [<c003dbdc>] (warn_slowpath_fmt) from [<c0412a54>] (musb_h_tx_flush_fifo+0xc4/0xe4) [<c0412a54>] (musb_h_tx_flush_fifo) from [<c04137b8>] (musb_start_urb+0x970/0xd24) [<c04137b8>] (musb_start_urb) from [<c0413e5c>] (musb_cleanup_urb+0xa0/0x130) [<c0413e5c>] (musb_cleanup_urb) from [<c04144f4>] (musb_urb_dequeue+0xf0/0x128) [<c04144f4>] (musb_urb_dequeue) from [<c03e3544>] (usb_hcd_unlink_urb+0x50/0x84) [<c03e3544>] (usb_hcd_unlink_urb) from [<c03e4788>] (usb_kill_urb+0x4c/0xc4) [<c03e4788>] (usb_kill_urb) from [<c040e794>] (usb_wwan_close+0xbc/0xf0) [<c040e794>] (usb_wwan_close) from [<c030cbb4>] (tty_port_shutdown+0x90/0x9c) [<c030cbb4>] (tty_port_shutdown) from [<c030d2f8>] (tty_port_close+0x24/0x4c) [<c030d2f8>] (tty_port_close) from [<c0304d9c>] (tty_release+0xec/0x4b8) [<c0304d9c>] (tty_release) from [<c0145b74>] (__fput+0x80/0x1d0) [<c0145b74>] (__fput) from [<c005c24c>] (task_work_run+0x8c/0xc0) [<c005c24c>] (task_work_run) from [<c0013904>] (do_work_pending+0x8c/0xb4) [<c0013904>] (do_work_pending) from [<c000f7e8>] (slow_work_pending+0xc/0x20) ---[ end trace 951f2d08e0a22b2b ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 897 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0xc4/0xe4() Could not flush host TX2 fifo: csr: 2403 Modules linked in: musb_dsps musb_am335x CPU: 0 PID: 897 Comm: ModemManager Tainted: G W 4.3.3 #1 Hardware name: Generic AM33XX (Flattened Device Tree) [<c0017bfc>] (unwind_backtrace) from [<c0013f3c>] (show_stack+0x10/0x14) [<c0013f3c>] (show_stack) from [<c02b247c>] (dump_stack+0x84/0x9c) [<c02b247c>] (dump_stack) from [<c003db70>] (warn_slowpath_common+0x7c/0xb8) [<c003db70>] (warn_slowpath_common) from [<c003dbdc>] (warn_slowpath_fmt+0x30/0x40) [<c003dbdc>] (warn_slowpath_fmt) from [<c0412a54>] (musb_h_tx_flush_fifo+0xc4/0xe4) [<c0412a54>] (musb_h_tx_flush_fifo) from [<c0413e78>] (musb_cleanup_urb+0xbc/0x130) [<c0413e78>] (musb_cleanup_urb) from [<c04144f4>] (musb_urb_dequeue+0xf0/0x128) [<c04144f4>] (musb_urb_dequeue) from [<c03e3544>] (usb_hcd_unlink_urb+0x50/0x84) [<c03e3544>] (usb_hcd_unlink_urb) from [<c03e4788>] (usb_kill_urb+0x4c/0xc4) [<c03e4788>] (usb_kill_urb) from [<c040e794>] (usb_wwan_close+0xbc/0xf0) [<c040e794>] (usb_wwan_close) from [<c030cbb4>] (tty_port_shutdown+0x90/0x9c) [<c030cbb4>] (tty_port_shutdown) from [<c030d2f8>] (tty_port_close+0x24/0x4c) [<c030d2f8>] (tty_port_close) from [<c0304d9c>] (tty_release+0xec/0x4b8) [<c0304d9c>] (tty_release) from [<c0145b74>] (__fput+0x80/0x1d0) [<c0145b74>] (__fput) from [<c005c24c>] (task_work_run+0x8c/0xc0) [<c005c24c>] (task_work_run) from [<c0013904>] (do_work_pending+0x8c/0xb4) [<c0013904>] (do_work_pending) from [<c000f7e8>] (slow_work_pending+0xc/0x20) ---[ end trace 951f2d08e0a22b2c ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 897 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0xc4/0xe4() Could not flush host TX2 fifo: csr: 2403 Modules linked in: musb_dsps musb_am335x CPU: 0 PID: 897 Comm: ModemManager Tainted: G W 4.3.3 #1 Hardware name: Generic AM33XX (Flattened Device Tree) [<c0017bfc>] (unwind_backtrace) from [<c0013f3c>] (show_stack+0x10/0x14) [<c0013f3c>] (show_stack) from [<c02b247c>] (dump_stack+0x84/0x9c) [<c02b247c>] (dump_stack) from [<c003db70>] (warn_slowpath_common+0x7c/0xb8) [<c003db70>] (warn_slowpath_common) from [<c003dbdc>] (warn_slowpath_fmt+0x30/0x40) [<c003dbdc>] (warn_slowpath_fmt) from [<c0412a54>] (musb_h_tx_flush_fifo+0xc4/0xe4) [<c0412a54>] (musb_h_tx_flush_fifo) from [<c04137b8>] (musb_start_urb+0x970/0xd24) [<c04137b8>] (musb_start_urb) from [<c0413e5c>] (musb_cleanup_urb+0xa0/0x130) [<c0413e5c>] (musb_cleanup_urb) from [<c04144f4>] (musb_urb_dequeue+0xf0/0x128) [<c04144f4>] (musb_urb_dequeue) from [<c03e3544>] (usb_hcd_unlink_urb+0x50/0x84) [<c03e3544>] (usb_hcd_unlink_urb) from [<c03e4788>] (usb_kill_urb+0x4c/0xc4) [<c03e4788>] (usb_kill_urb) from [<c040e794>] (usb_wwan_close+0xbc/0xf0) [<c040e794>] (usb_wwan_close) from [<c030cbb4>] (tty_port_shutdown+0x90/0x9c) [<c030cbb4>] (tty_port_shutdown) from [<c030d2f8>] (tty_port_close+0x24/0x4c) [<c030d2f8>] (tty_port_close) from [<c0304d9c>] (tty_release+0xec/0x4b8) [<c0304d9c>] (tty_release) from [<c0145b74>] (__fput+0x80/0x1d0) [<c0145b74>] (__fput) from [<c005c24c>] (task_work_run+0x8c/0xc0) [<c005c24c>] (task_work_run) from [<c0013904>] (do_work_pending+0x8c/0xb4) [<c0013904>] (do_work_pending) from [<c000f7e8>] (slow_work_pending+0xc/0x20) ---[ end trace 951f2d08e0a22b2d ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 897 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0xc4/0xe4() Could not flush host TX2 fifo: csr: 2403 Modules linked in: musb_dsps musb_am335x CPU: 0 PID: 897 Comm: ModemManager Tainted: G W 4.3.3 #1 Hardware name: Generic AM33XX (Flattened Device Tree) [<c0017bfc>] (unwind_backtrace) from [<c0013f3c>] (show_stack+0x10/0x14) [<c0013f3c>] (show_stack) from [<c02b247c>] (dump_stack+0x84/0x9c) [<c02b247c>] (dump_stack) from [<c003db70>] (warn_slowpath_common+0x7c/0xb8) [<c003db70>] (warn_slowpath_common) from [<c003dbdc>] (warn_slowpath_fmt+0x30/0x40) [<c003dbdc>] (warn_slowpath_fmt) from [<c0412a54>] (musb_h_tx_flush_fifo+0xc4/0xe4) [<c0412a54>] (musb_h_tx_flush_fifo) from [<c0413e78>] (musb_cleanup_urb+0xbc/0x130) [<c0413e78>] (musb_cleanup_urb) from [<c04144f4>] (musb_urb_dequeue+0xf0/0x128) [<c04144f4>] (musb_urb_dequeue) from [<c03e3544>] (usb_hcd_unlink_urb+0x50/0x84) [<c03e3544>] (usb_hcd_unlink_urb) from [<c03e4788>] (usb_kill_urb+0x4c/0xc4) [<c03e4788>] (usb_kill_urb) from [<c040e794>] (usb_wwan_close+0xbc/0xf0) [<c040e794>] (usb_wwan_close) from [<c030cbb4>] (tty_port_shutdown+0x90/0x9c) [<c030cbb4>] (tty_port_shutdown) from [<c030d2f8>] (tty_port_close+0x24/0x4c) [<c030d2f8>] (tty_port_close) from [<c0304d9c>] (tty_release+0xec/0x4b8) [<c0304d9c>] (tty_release) from [<c0145b74>] (__fput+0x80/0x1d0) [<c0145b74>] (__fput) from [<c005c24c>] (task_work_run+0x8c/0xc0) [<c005c24c>] (task_work_run) from [<c0013904>] (do_work_pending+0x8c/0xb4) [<c0013904>] (do_work_pending) from [<c000f7e8>] (slow_work_pending+0xc/0x20) ---[ end trace 951f2d08e0a22b2e ]--- Could you please look at this? Thanks. Yegor -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi, Yegor Yefremov <yegorslists@googlemail.com> writes: > Hi Felipe, hi Ladislav, > > On Wed, Oct 14, 2015 at 1:47 AM, Ladislav Michl <ladis@linux-mips.org> wrote: >> On Mon, Aug 31, 2015 at 03:11:58PM +0200, Yegor Yefremov wrote: >>> Hi Felipe, >>> >>> On Fri, Aug 7, 2015 at 12:57 PM, Yegor Yefremov >>> <yegorslists@googlemail.com> wrote: >>> > On Fri, Aug 7, 2015 at 12:16 PM, Yegor Yefremov >>> > <yegorslists@googlemail.com> wrote: >>> >> On Thu, Aug 6, 2015 at 4:21 PM, Felipe Balbi <balbi@ti.com> wrote: >>> >>> HI, >>> >>> >>> >>> On Thu, Aug 06, 2015 at 09:40:26AM +0200, Yegor Yefremov wrote: >>> >>>> I performed a stress test with several FT4232H chips connected to a >>> >>> >>> >>> how many ? >>> >> >>> >> # lsusb -t >>> >> /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=musb-hdrc/1p, 480M >>> >> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=musb-hdrc/1p, 480M >>> >> |__ Port 1: Dev 2, If 0, Class=, Driver=hub/4p, 480M >>> >> |__ Port 1: Dev 3, If 0, Class=, Driver=ftdi_sio, 480M >>> >> |__ Port 1: Dev 3, If 1, Class=, Driver=ftdi_sio, 480M >>> >> |__ Port 1: Dev 3, If 2, Class=, Driver=ftdi_sio, 480M >>> >> |__ Port 1: Dev 3, If 3, Class=, Driver=ftdi_sio, 480M >>> >> |__ Port 2: Dev 4, If 0, Class=, Driver=ftdi_sio, 480M >>> >> |__ Port 2: Dev 4, If 1, Class=, Driver=ftdi_sio, 480M >>> >> |__ Port 2: Dev 4, If 2, Class=, Driver=ftdi_sio, 480M >>> >> |__ Port 2: Dev 4, If 3, Class=, Driver=ftdi_sio, 480M >>> >> |__ Port 3: Dev 5, If 0, Class=, Driver=ftdi_sio, 480M >>> >> |__ Port 3: Dev 5, If 1, Class=, Driver=ftdi_sio, 480M >>> >> |__ Port 3: Dev 5, If 2, Class=, Driver=ftdi_sio, 480M >>> >> |__ Port 3: Dev 5, If 3, Class=, Driver=ftdi_sio, 480M >>> >> >>> >> 3 chips a 4-ports are attached. >>> > >>> > Warnings appear on another device (without internal hub) with only one >>> > FT4232H too: >>> > >>> > # lsusb -t >>> > /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=musb-hdrc/1p, 480M >>> > |__ Port 1: Dev 2, If 0, Class=, Driver=ftdi_sio, 480M >>> > |__ Port 1: Dev 2, If 1, Class=, Driver=ftdi_sio, 480M >>> > |__ Port 1: Dev 2, If 2, Class=, Driver=ftdi_sio, 480M >>> > |__ Port 1: Dev 2, If 3, Class=, Driver=ftdi_sio, 480M >>> > >>> >>>> hub, that is attached to one of the musb ports. So far the test was >>> >>>> successful for several hours. But I've seen following warnings: >>> >>>> >>> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >>> >>>> musb_ep_program 931: broken !rx_reinit, ep5 csr 0203 >>> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >>> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >>> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >>> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >>> >>>> musb_ep_program 931: broken !rx_reinit, ep5 csr 0003 >>> >>>> musb_host_rx 1973: Rx interrupt with no errors or packet! >>> >>>> musb_ep_program 931: broken !rx_reinit, ep7 csr 0003 >>> >>>> >>> >>>> Is this expected behavior? >>> >>> >>> >>> no, that shouldn't happen, but it does and, apparently, in more than one >>> >>> implementation. Wondering if you're running into endpoint limitation due >>> >>> to MUSB's poor transfer scheduling for non-bulk endpoints. >> >> To add more: >> kernel 4.2.0 on AM3703 musb in DMA mode with Quectel U15 modem plugged: >> /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=musb-hdrc/1p, 480M >> |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M >> |__ Port 4: Dev 3, If 0, Class=Vendor Specific Class, Driver=option, 480M >> |__ Port 4: Dev 3, If 1, Class=Vendor Specific Class, Driver=option, 480M >> |__ Port 4: Dev 3, If 2, Class=Vendor Specific Class, Driver=option, 480M >> |__ Port 4: Dev 3, If 3, Class=Vendor Specific Class, Driver=option, 480M >> |__ Port 4: Dev 3, If 4, Class=Vendor Specific Class, Driver=option, 480M >> /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-omap/3p, 480M >> >> musb_ep_program 931: broken !rx_reinit, ep2 csr a203 >> musb_host_rx 1973: Rx interrupt with no errors or packet! >> musb_ep_program 931: broken !rx_reinit, ep5 csr a203 >> musb_host_rx 1973: Rx interrupt with no errors or packet! >> >> and in both PIO and DMA mode write to device ends this way: >> ------------[ cut here ]------------ >> WARNING: CPU: 0 PID: 146 at drivers/usb/musb/musb_host.c:128 musb_h_tx_flush_fifo+0x84/0xb8() >> Could not flush host TX2 fifo: csr: 2003 >> Modules linked in: option usb_wwan usbserial snd_soc_omap_twl4030 cpufreq_dt snd_soc_omap_mcbsp snd_soc_omap snd_soc_twl4030 snd_pcm_dmaengine omap_aes snd_soc_core omap_sham omap_mailbox s >> CPU: 0 PID: 146 Comm: ModemManager Not tainted 4.2.0 #3 >> Hardware name: Generic OMAP36xx (Flattened Device Tree) >> [<c0013ad4>] (unwind_backtrace) from [<c0011be8>] (show_stack+0x10/0x14) >> [<c0011be8>] (show_stack) from [<c003181c>] (warn_slowpath_common+0x84/0xac) >> [<c003181c>] (warn_slowpath_common) from [<c0031870>] (warn_slowpath_fmt+0x2c/0x3c) >> [<c0031870>] (warn_slowpath_fmt) from [<c02e6a64>] (musb_h_tx_flush_fifo+0x84/0xb8) >> [<c02e6a64>] (musb_h_tx_flush_fifo) from [<c02e7ee0>] (musb_cleanup_urb.isra.13+0xa0/0x12c) >> [<c02e7ee0>] (musb_cleanup_urb.isra.13) from [<c02e8060>] (musb_urb_dequeue+0xf4/0x114) >> [<c02e8060>] (musb_urb_dequeue) from [<c02cdda0>] (usb_hcd_unlink_urb+0x60/0x7c) >> [<c02cdda0>] (usb_hcd_unlink_urb) from [<c02ceb9c>] (usb_kill_urb+0x4c/0xc4) >> [<c02ceb9c>] (usb_kill_urb) from [<bf1638d8>] (usb_wwan_close+0x94/0xb0 [usb_wwan]) >> [<bf1638d8>] (usb_wwan_close [usb_wwan]) from [<c025d0cc>] (tty_port_shutdown+0x7c/0x88) >> [<c025d0cc>] (tty_port_shutdown) from [<c025d9a0>] (tty_port_close+0x24/0x58) >> [<c025d9a0>] (tty_port_close) from [<c0256494>] (tty_release+0x128/0x40c) >> [<c0256494>] (tty_release) from [<c00c9aa0>] (__fput+0xd4/0x1a4) >> [<c00c9aa0>] (__fput) from [<c004937c>] (task_work_run+0x9c/0xb0) >> [<c004937c>] (task_work_run) from [<c0011688>] (do_work_pending+0xa0/0xb8) >> [<c0011688>] (do_work_pending) from [<c000e904>] (work_pending+0xc/0x20) >> ---[ end trace b14c1d9333664980 ]--- >> >> and device (U15) does not work. Also any other device pluged into that hub >> after warning is printed does not work any more (udlfb worked before). >> >> Just for completeness, here's a patch used: >> --- linux-4.2/drivers/usb/serial/option.c.orig 2015-10-13 02:43:23.363254239 +0200 >> +++ linux-4.2/drivers/usb/serial/option.c 2015-10-13 02:44:24.663254239 +0200 >> @@ -1097,6 +1097,7 @@ >> { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ >> { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */ >> { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */ >> + { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9090)}, /* QUECTEL UC15 */ >> { USB_DEVICE_INTERFACE_CLASS(SIERRA_VENDOR_ID, 0x68c0, 0xff), >> .driver_info = (kernel_ulong_t)&sierra_mc73xx_blacklist }, /* MC73xx */ >> { USB_DEVICE_INTERFACE_CLASS(SIERRA_VENDOR_ID, 0x9041, 0xff), >> >>> Now I have another trouble with msub and FTDI FT4232H chip. If I start >>> something like this on all 4 ports at 115200b/s, then pull USB cable >>> and the system freezes: >>> >>> cat /dev/urandom > /dev/ttyUSB0 >>> ... >>> cat /dev/urandom > /dev/ttyUSB3 >>> >>> I see these messages: >>> >>> ftdi_sio ttyUSB3: usb_serial_generic_write_bulk_callback - nonzero urb >>> status: -110 >>> ftdi_sio ttyUSB0: usb_serial_generic_write_bulk_callback - nonzero urb >>> status: -110 >>> ftdi_sio ttyUSB1: usb_serial_generic_write_bulk_callback - nonzero urb >>> status: -110 >>> ftdi_sio ttyUSB2: usb_serial_generic_write_bulk_callback - nonzero urb >>> status: -110 >>> ftdi_sio ttyUSB3: usb_serial_generic_write_bulk_callback - nonzero urb >>> status: -110 >>> ftdi_sio ttyUSB0: usb_serial_generic_write_bulk_callback - nonzero urb >>> status: -110 >>> ftdi_sio ttyUSB1: usb_serial_generic_write_bulk_callback - nonzero urb >>> status: -110 >>> ftdi_sio ttyUSB2: usb_serial_generic_write_bulk_callback - nonzero urb >>> status: -110 >>> ftdi_sio ttyUSB3: usb_serial_generic_write_bulk_callback - nonzero urb >>> status: -110 >>> >>> After them system reboots as my watchdog time expires. >>> >>> Kernel 4.2.0-rc5 >>> >>> Older FTDI chips like FT2232 have no problems. Somehow is musb really >>> allergic to FTDI and vice versa :-( >> >> That probably depends on transfer size... > > Have another musb crash, when I insert TP-Link MA260. Crash log with linux-4.3.3 > > usb 1-1.2: new high-speed USB device number 9 using musb-hdrc > usb-storage 1-1.2:1.0: USB Mass Storage device detected > scsi host12: usb-storage 1-1.2:1.0 > usb 1-1.2: USB disconnect, device number 9 > usb 1-1.2: new high-speed USB device number 10 using musb-hdrc > option 1-1.2:1.0: GSM modem (1-port) converter detected > usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB0 > option 1-1.2:1.1: GSM modem (1-port) converter detected > usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB1 > usb-storage 1-1.2:1.2: USB Mass Storage device detected > scsi host13: usb-storage 1-1.2:1.2 > option 1-1.2:1.3: GSM modem (1-port) converter detected > usb 1-1.2: GSM modem (1-port) converter now attached to ttyUSB2 > qmi_wwan 1-1.2:1.4: cdc-wdm0: USB WDM device > qmi_wwan 1-1.2:1.4 wwan0: register 'qmi_wwan' at > usb-musb-hdrc.0.auto-1.2, WWAN/QMI device, 26:ff:72:84:92:10 > scsi 13:0:0:0: CD-ROM TP-LINK MMC Storage 2.31 PQ: 0 ANSI: 2 > scsi 13:0:0:1: Direct-Access TP-LINK MMC Storage 2.31 PQ: 0 ANSI: 2 > sd 13:0:0:1: [sda] Attached SCSI removable disk > > # > # > # m------------[ cut here ]------------ > WARNING: CPU: 0 PID: 897 at drivers/usb/musb/musb_host.c:128 > musb_h_tx_flush_fifo+0xc4/0xe4() > Could not flush host TX2 fifo: csr: 2403 > Modules linked in: musb_dsps musb_am335x > CPU: 0 PID: 897 Comm: ModemManager Not tainted 4.3.3 #1 > Hardware name: Generic AM33XX (Flattened Device Tree) > [<c0017bfc>] (unwind_backtrace) from [<c0013f3c>] (show_stack+0x10/0x14) > [<c0013f3c>] (show_stack) from [<c02b247c>] (dump_stack+0x84/0x9c) > [<c02b247c>] (dump_stack) from [<c003db70>] (warn_slowpath_common+0x7c/0xb8) > [<c003db70>] (warn_slowpath_common) from [<c003dbdc>] > (warn_slowpath_fmt+0x30/0x40) > [<c003dbdc>] (warn_slowpath_fmt) from [<c0412a54>] > (musb_h_tx_flush_fifo+0xc4/0xe4) > [<c0412a54>] (musb_h_tx_flush_fifo) from [<c0413e78>] > (musb_cleanup_urb+0xbc/0x130) > [<c0413e78>] (musb_cleanup_urb) from [<c04144f4>] (musb_urb_dequeue+0xf0/0x128) > [<c04144f4>] (musb_urb_dequeue) from [<c03e3544>] (usb_hcd_unlink_urb+0x50/0x84) > [<c03e3544>] (usb_hcd_unlink_urb) from [<c03e4788>] (usb_kill_urb+0x4c/0xc4) > [<c03e4788>] (usb_kill_urb) from [<c040e794>] (usb_wwan_close+0xbc/0xf0) > [<c040e794>] (usb_wwan_close) from [<c030cbb4>] (tty_port_shutdown+0x90/0x9c) > [<c030cbb4>] (tty_port_shutdown) from [<c030d2f8>] (tty_port_close+0x24/0x4c) > [<c030d2f8>] (tty_port_close) from [<c0304d9c>] (tty_release+0xec/0x4b8) > [<c0304d9c>] (tty_release) from [<c0145b74>] (__fput+0x80/0x1d0) > [<c0145b74>] (__fput) from [<c005c24c>] (task_work_run+0x8c/0xc0) > [<c005c24c>] (task_work_run) from [<c0013904>] (do_work_pending+0x8c/0xb4) > [<c0013904>] (do_work_pending) from [<c000f7e8>] (slow_work_pending+0xc/0x20) > ---[ end trace 951f2d08e0a22b2a ]--- > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 897 at drivers/usb/musb/musb_host.c:128 > musb_h_tx_flush_fifo+0xc4/0xe4() > Could not flush host TX2 fifo: csr: 2403 > Modules linked in: musb_dsps musb_am335x > CPU: 0 PID: 897 Comm: ModemManager Tainted: G W 4.3.3 #1 > Hardware name: Generic AM33XX (Flattened Device Tree) > [<c0017bfc>] (unwind_backtrace) from [<c0013f3c>] (show_stack+0x10/0x14) > [<c0013f3c>] (show_stack) from [<c02b247c>] (dump_stack+0x84/0x9c) > [<c02b247c>] (dump_stack) from [<c003db70>] (warn_slowpath_common+0x7c/0xb8) > [<c003db70>] (warn_slowpath_common) from [<c003dbdc>] > (warn_slowpath_fmt+0x30/0x40) > [<c003dbdc>] (warn_slowpath_fmt) from [<c0412a54>] > (musb_h_tx_flush_fifo+0xc4/0xe4) > [<c0412a54>] (musb_h_tx_flush_fifo) from [<c04137b8>] > (musb_start_urb+0x970/0xd24) > [<c04137b8>] (musb_start_urb) from [<c0413e5c>] (musb_cleanup_urb+0xa0/0x130) > [<c0413e5c>] (musb_cleanup_urb) from [<c04144f4>] (musb_urb_dequeue+0xf0/0x128) > [<c04144f4>] (musb_urb_dequeue) from [<c03e3544>] (usb_hcd_unlink_urb+0x50/0x84) > [<c03e3544>] (usb_hcd_unlink_urb) from [<c03e4788>] (usb_kill_urb+0x4c/0xc4) > [<c03e4788>] (usb_kill_urb) from [<c040e794>] (usb_wwan_close+0xbc/0xf0) > [<c040e794>] (usb_wwan_close) from [<c030cbb4>] (tty_port_shutdown+0x90/0x9c) > [<c030cbb4>] (tty_port_shutdown) from [<c030d2f8>] (tty_port_close+0x24/0x4c) > [<c030d2f8>] (tty_port_close) from [<c0304d9c>] (tty_release+0xec/0x4b8) > [<c0304d9c>] (tty_release) from [<c0145b74>] (__fput+0x80/0x1d0) > [<c0145b74>] (__fput) from [<c005c24c>] (task_work_run+0x8c/0xc0) > [<c005c24c>] (task_work_run) from [<c0013904>] (do_work_pending+0x8c/0xb4) > [<c0013904>] (do_work_pending) from [<c000f7e8>] (slow_work_pending+0xc/0x20) > ---[ end trace 951f2d08e0a22b2b ]--- > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 897 at drivers/usb/musb/musb_host.c:128 > musb_h_tx_flush_fifo+0xc4/0xe4() > Could not flush host TX2 fifo: csr: 2403 > Modules linked in: musb_dsps musb_am335x > CPU: 0 PID: 897 Comm: ModemManager Tainted: G W 4.3.3 #1 > Hardware name: Generic AM33XX (Flattened Device Tree) > [<c0017bfc>] (unwind_backtrace) from [<c0013f3c>] (show_stack+0x10/0x14) > [<c0013f3c>] (show_stack) from [<c02b247c>] (dump_stack+0x84/0x9c) > [<c02b247c>] (dump_stack) from [<c003db70>] (warn_slowpath_common+0x7c/0xb8) > [<c003db70>] (warn_slowpath_common) from [<c003dbdc>] > (warn_slowpath_fmt+0x30/0x40) > [<c003dbdc>] (warn_slowpath_fmt) from [<c0412a54>] > (musb_h_tx_flush_fifo+0xc4/0xe4) > [<c0412a54>] (musb_h_tx_flush_fifo) from [<c0413e78>] > (musb_cleanup_urb+0xbc/0x130) > [<c0413e78>] (musb_cleanup_urb) from [<c04144f4>] (musb_urb_dequeue+0xf0/0x128) > [<c04144f4>] (musb_urb_dequeue) from [<c03e3544>] (usb_hcd_unlink_urb+0x50/0x84) > [<c03e3544>] (usb_hcd_unlink_urb) from [<c03e4788>] (usb_kill_urb+0x4c/0xc4) > [<c03e4788>] (usb_kill_urb) from [<c040e794>] (usb_wwan_close+0xbc/0xf0) > [<c040e794>] (usb_wwan_close) from [<c030cbb4>] (tty_port_shutdown+0x90/0x9c) > [<c030cbb4>] (tty_port_shutdown) from [<c030d2f8>] (tty_port_close+0x24/0x4c) > [<c030d2f8>] (tty_port_close) from [<c0304d9c>] (tty_release+0xec/0x4b8) > [<c0304d9c>] (tty_release) from [<c0145b74>] (__fput+0x80/0x1d0) > [<c0145b74>] (__fput) from [<c005c24c>] (task_work_run+0x8c/0xc0) > [<c005c24c>] (task_work_run) from [<c0013904>] (do_work_pending+0x8c/0xb4) > [<c0013904>] (do_work_pending) from [<c000f7e8>] (slow_work_pending+0xc/0x20) > ---[ end trace 951f2d08e0a22b2c ]--- > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 897 at drivers/usb/musb/musb_host.c:128 > musb_h_tx_flush_fifo+0xc4/0xe4() > Could not flush host TX2 fifo: csr: 2403 > Modules linked in: musb_dsps musb_am335x > CPU: 0 PID: 897 Comm: ModemManager Tainted: G W 4.3.3 #1 > Hardware name: Generic AM33XX (Flattened Device Tree) > [<c0017bfc>] (unwind_backtrace) from [<c0013f3c>] (show_stack+0x10/0x14) > [<c0013f3c>] (show_stack) from [<c02b247c>] (dump_stack+0x84/0x9c) > [<c02b247c>] (dump_stack) from [<c003db70>] (warn_slowpath_common+0x7c/0xb8) > [<c003db70>] (warn_slowpath_common) from [<c003dbdc>] > (warn_slowpath_fmt+0x30/0x40) > [<c003dbdc>] (warn_slowpath_fmt) from [<c0412a54>] > (musb_h_tx_flush_fifo+0xc4/0xe4) > [<c0412a54>] (musb_h_tx_flush_fifo) from [<c04137b8>] > (musb_start_urb+0x970/0xd24) > [<c04137b8>] (musb_start_urb) from [<c0413e5c>] (musb_cleanup_urb+0xa0/0x130) > [<c0413e5c>] (musb_cleanup_urb) from [<c04144f4>] (musb_urb_dequeue+0xf0/0x128) > [<c04144f4>] (musb_urb_dequeue) from [<c03e3544>] (usb_hcd_unlink_urb+0x50/0x84) > [<c03e3544>] (usb_hcd_unlink_urb) from [<c03e4788>] (usb_kill_urb+0x4c/0xc4) > [<c03e4788>] (usb_kill_urb) from [<c040e794>] (usb_wwan_close+0xbc/0xf0) > [<c040e794>] (usb_wwan_close) from [<c030cbb4>] (tty_port_shutdown+0x90/0x9c) > [<c030cbb4>] (tty_port_shutdown) from [<c030d2f8>] (tty_port_close+0x24/0x4c) > [<c030d2f8>] (tty_port_close) from [<c0304d9c>] (tty_release+0xec/0x4b8) > [<c0304d9c>] (tty_release) from [<c0145b74>] (__fput+0x80/0x1d0) > [<c0145b74>] (__fput) from [<c005c24c>] (task_work_run+0x8c/0xc0) > [<c005c24c>] (task_work_run) from [<c0013904>] (do_work_pending+0x8c/0xb4) > [<c0013904>] (do_work_pending) from [<c000f7e8>] (slow_work_pending+0xc/0x20) > ---[ end trace 951f2d08e0a22b2d ]--- > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 897 at drivers/usb/musb/musb_host.c:128 > musb_h_tx_flush_fifo+0xc4/0xe4() > Could not flush host TX2 fifo: csr: 2403 > Modules linked in: musb_dsps musb_am335x > CPU: 0 PID: 897 Comm: ModemManager Tainted: G W 4.3.3 #1 > Hardware name: Generic AM33XX (Flattened Device Tree) > [<c0017bfc>] (unwind_backtrace) from [<c0013f3c>] (show_stack+0x10/0x14) > [<c0013f3c>] (show_stack) from [<c02b247c>] (dump_stack+0x84/0x9c) > [<c02b247c>] (dump_stack) from [<c003db70>] (warn_slowpath_common+0x7c/0xb8) > [<c003db70>] (warn_slowpath_common) from [<c003dbdc>] > (warn_slowpath_fmt+0x30/0x40) > [<c003dbdc>] (warn_slowpath_fmt) from [<c0412a54>] > (musb_h_tx_flush_fifo+0xc4/0xe4) > [<c0412a54>] (musb_h_tx_flush_fifo) from [<c0413e78>] > (musb_cleanup_urb+0xbc/0x130) > [<c0413e78>] (musb_cleanup_urb) from [<c04144f4>] (musb_urb_dequeue+0xf0/0x128) > [<c04144f4>] (musb_urb_dequeue) from [<c03e3544>] (usb_hcd_unlink_urb+0x50/0x84) > [<c03e3544>] (usb_hcd_unlink_urb) from [<c03e4788>] (usb_kill_urb+0x4c/0xc4) > [<c03e4788>] (usb_kill_urb) from [<c040e794>] (usb_wwan_close+0xbc/0xf0) > [<c040e794>] (usb_wwan_close) from [<c030cbb4>] (tty_port_shutdown+0x90/0x9c) > [<c030cbb4>] (tty_port_shutdown) from [<c030d2f8>] (tty_port_close+0x24/0x4c) > [<c030d2f8>] (tty_port_close) from [<c0304d9c>] (tty_release+0xec/0x4b8) > [<c0304d9c>] (tty_release) from [<c0145b74>] (__fput+0x80/0x1d0) > [<c0145b74>] (__fput) from [<c005c24c>] (task_work_run+0x8c/0xc0) > [<c005c24c>] (task_work_run) from [<c0013904>] (do_work_pending+0x8c/0xb4) > [<c0013904>] (do_work_pending) from [<c000f7e8>] (slow_work_pending+0xc/0x20) > ---[ end trace 951f2d08e0a22b2e ]--- > > Could you please look at this? IIRC, Bin and I had a lengthy discussion about these WARNs on MUSB. MUSB's documents aren't very helpful when discussing FIFO flush. There's some ambiguity there; This seems to be easier to reproduce with interrupt endpoints since that's also what Bin pointed to. In any case, I think there might be something we could do to make this slightly better. I'll see what I can do for v4.5-rc
Hi Felipe, On Wed, Dec 30, 2015 at 08:28:33AM -0600, Felipe Balbi wrote: > IIRC, Bin and I had a lengthy discussion about these WARNs on > MUSB. MUSB's documents aren't very helpful when discussing FIFO > flush. There's some ambiguity there; This seems to be easier to > reproduce with interrupt endpoints since that's also what Bin pointed > to. Is there anything I could debug to move things forward? > In any case, I think there might be something we could do to make this > slightly better. I'll see what I can do for v4.5-rc Any chance it will actually happen? MUSB is still unusable for me and doesn't work properly since TI's 2.6.37 kernel (oldest one I have tried)... regards, ladis -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Bin, On Wed, Jan 27, 2016 at 11:01 AM, Ladislav Michl <ladis@linux-mips.org> wrote: > Hi Felipe, > > On Wed, Dec 30, 2015 at 08:28:33AM -0600, Felipe Balbi wrote: >> IIRC, Bin and I had a lengthy discussion about these WARNs on >> MUSB. MUSB's documents aren't very helpful when discussing FIFO >> flush. There's some ambiguity there; This seems to be easier to >> reproduce with interrupt endpoints since that's also what Bin pointed >> to. > > Is there anything I could debug to move things forward? > >> In any case, I think there might be something we could do to make this >> slightly better. I'll see what I can do for v4.5-rc > > Any chance it will actually happen? MUSB is still unusable for me and > doesn't work properly since TI's 2.6.37 kernel (oldest one I have > tried)... The issue with musb_h_tx_flush_fifo still persists. Kernel 4.5.0-rc6. Just activating SImCOM SIM7100E produces following error: # usb 1-1.3: new high-speed USB device number 6 using musb-hdrc usbcore: registered new interface driver option usbserial: USB Serial support registered for GSM modem (1-port) option 1-1.3:1.0: GSM modem (1-port) converter detected usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB4 option 1-1.3:1.1: GSM modem (1-port) converter detected usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB5 option 1-1.3:1.2: GSM modem (1-port) converter detected usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB6 option 1-1.3:1.3: GSM modem (1-port) converter detected usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB7 option 1-1.3:1.4: GSM modem (1-port) converter detected usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB8 qmi_wwan 1-1.3:1.5: cdc-wdm0: USB WDM device qmi_wwan 1-1.3:1.5 wwan0: register 'qmi_wwan' at usb-musb-hdrc.0.auto-1.3, WWAN/QMI device, b2:67:d8:31:8f:b6 usbcore: registered new interface driver qmi_wwan ------------[ cut here ]------------ WARNING: CPU: 0 PID: 868 at drivers/usb/musb/musb_host.c:139 musb_h_tx_flush_fifo+0xc4/0xe4() musb-hdrc musb-hdrc.0.auto: Could not flush host TX2 fifo: csr: 2403 Modules linked in: qmi_wwan option usb_wwan ftdi_sio usbserial musb_dsps musb_am335x CPU: 0 PID: 868 Comm: ModemManager Not tainted 4.5.0-rc6 #47 Hardware name: Generic AM33XX (Flattened Device Tree) [<c0017e34>] (unwind_backtrace) from [<c0014088>] (show_stack+0x10/0x14) [<c0014088>] (show_stack) from [<c02c5b24>] (dump_stack+0xb0/0xe4) [<c02c5b24>] (dump_stack) from [<c003bca4>] (warn_slowpath_common+0x7c/0xb8) [<c003bca4>] (warn_slowpath_common) from [<c003bd10>] (warn_slowpath_fmt+0x30/0x40) [<c003bd10>] (warn_slowpath_fmt) from [<c041ec10>] (musb_h_tx_flush_fifo+0xc4/0xe4) [<c041ec10>] (musb_h_tx_flush_fifo) from [<c041fd54>] (musb_cleanup_urb+0xbc/0x130) [<c041fd54>] (musb_cleanup_urb) from [<c0420404>] (musb_urb_dequeue+0xf0/0x128) [<c0420404>] (musb_urb_dequeue) from [<c03fa82c>] (usb_hcd_unlink_urb+0x50/0x84) [<c03fa82c>] (usb_hcd_unlink_urb) from [<c03fba70>] (usb_kill_urb+0x4c/0xc4) [<c03fba70>] (usb_kill_urb) from [<bf02f85c>] (usb_wwan_close+0xbc/0xf0 [usb_wwan]) [<bf02f85c>] (usb_wwan_close [usb_wwan]) from [<c0322ce8>] (tty_port_shutdown+0x90/0x9c) [<c0322ce8>] (tty_port_shutdown) from [<c03233cc>] (tty_port_close+0x24/0x4c) [<c03233cc>] (tty_port_close) from [<c031a258>] (tty_release+0xec/0x478) [<c031a258>] (tty_release) from [<c014ef38>] (__fput+0x80/0x1d0) [<c014ef38>] (__fput) from [<c005a8d8>] (task_work_run+0x90/0xc4) [<c005a8d8>] (task_work_run) from [<c0013a4c>] (do_work_pending+0x8c/0xb4) [<c0013a4c>] (do_work_pending) from [<c000f8e8>] (slow_work_pending+0xc/0x20) ---[ end trace fb2fc0420e2c4594 ]--- Could you please take a look at this? Yegor -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Mar 14, 2016 at 11:25:59AM +0100, Yegor Yefremov wrote: Hi Yegor, > Hi Bin, > > On Wed, Jan 27, 2016 at 11:01 AM, Ladislav Michl <ladis@linux-mips.org> wrote: > > Any chance it will actually happen? MUSB is still unusable for me and > > doesn't work properly since TI's 2.6.37 kernel (oldest one I have > > tried)... > > The issue with musb_h_tx_flush_fifo still persists. Kernel 4.5.0-rc6. > Just activating SImCOM SIM7100E produces following error: > > # usb 1-1.3: new high-speed USB device number 6 using musb-hdrc > usbcore: registered new interface driver option > usbserial: USB Serial support registered for GSM modem (1-port) > option 1-1.3:1.0: GSM modem (1-port) converter detected > usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB4 > option 1-1.3:1.1: GSM modem (1-port) converter detected > usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB5 > option 1-1.3:1.2: GSM modem (1-port) converter detected > usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB6 > option 1-1.3:1.3: GSM modem (1-port) converter detected > usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB7 > option 1-1.3:1.4: GSM modem (1-port) converter detected > usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB8 > qmi_wwan 1-1.3:1.5: cdc-wdm0: USB WDM device > qmi_wwan 1-1.3:1.5 wwan0: register 'qmi_wwan' at > usb-musb-hdrc.0.auto-1.3, WWAN/QMI device, b2:67:d8:31:8f:b6 > usbcore: registered new interface driver qmi_wwan > ------------[ cut here ]------------ > WARNING: CPU: 0 PID: 868 at drivers/usb/musb/musb_host.c:139 > musb_h_tx_flush_fifo+0xc4/0xe4() > musb-hdrc musb-hdrc.0.auto: Could not flush host TX2 fifo: csr: 2403 > Modules linked in: qmi_wwan option usb_wwan ftdi_sio usbserial > musb_dsps musb_am335x > CPU: 0 PID: 868 Comm: ModemManager Not tainted 4.5.0-rc6 #47 > Hardware name: Generic AM33XX (Flattened Device Tree) > [<c0017e34>] (unwind_backtrace) from [<c0014088>] (show_stack+0x10/0x14) > [<c0014088>] (show_stack) from [<c02c5b24>] (dump_stack+0xb0/0xe4) > [<c02c5b24>] (dump_stack) from [<c003bca4>] (warn_slowpath_common+0x7c/0xb8) > [<c003bca4>] (warn_slowpath_common) from [<c003bd10>] > (warn_slowpath_fmt+0x30/0x40) > [<c003bd10>] (warn_slowpath_fmt) from [<c041ec10>] > (musb_h_tx_flush_fifo+0xc4/0xe4) > [<c041ec10>] (musb_h_tx_flush_fifo) from [<c041fd54>] > (musb_cleanup_urb+0xbc/0x130) > [<c041fd54>] (musb_cleanup_urb) from [<c0420404>] (musb_urb_dequeue+0xf0/0x128) > [<c0420404>] (musb_urb_dequeue) from [<c03fa82c>] (usb_hcd_unlink_urb+0x50/0x84) > [<c03fa82c>] (usb_hcd_unlink_urb) from [<c03fba70>] (usb_kill_urb+0x4c/0xc4) > [<c03fba70>] (usb_kill_urb) from [<bf02f85c>] > (usb_wwan_close+0xbc/0xf0 [usb_wwan]) > [<bf02f85c>] (usb_wwan_close [usb_wwan]) from [<c0322ce8>] > (tty_port_shutdown+0x90/0x9c) > [<c0322ce8>] (tty_port_shutdown) from [<c03233cc>] (tty_port_close+0x24/0x4c) > [<c03233cc>] (tty_port_close) from [<c031a258>] (tty_release+0xec/0x478) > [<c031a258>] (tty_release) from [<c014ef38>] (__fput+0x80/0x1d0) > [<c014ef38>] (__fput) from [<c005a8d8>] (task_work_run+0x90/0xc4) > [<c005a8d8>] (task_work_run) from [<c0013a4c>] (do_work_pending+0x8c/0xb4) > [<c0013a4c>] (do_work_pending) from [<c000f8e8>] (slow_work_pending+0xc/0x20) > ---[ end trace fb2fc0420e2c4594 ]--- > > Could you please take a look at this? > > Yegor I cannot reproduce it anymore, as commits 4c2ba0c67394514f3f75c660c9f5d02e66a7efd4 bba40e6948b94cba71965285fbac31bd078c024a fixed issue for me (using Inventra DMA on DM3730) - but those two are part of 4.5.0-rc6 ... Best regards, ladis -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, Mar 14, 2016 at 1:11 PM, Ladislav Michl <ladis@linux-mips.org> wrote: > On Mon, Mar 14, 2016 at 11:25:59AM +0100, Yegor Yefremov wrote: > > Hi Yegor, > >> Hi Bin, >> >> On Wed, Jan 27, 2016 at 11:01 AM, Ladislav Michl <ladis@linux-mips.org> wrote: >> > Any chance it will actually happen? MUSB is still unusable for me and >> > doesn't work properly since TI's 2.6.37 kernel (oldest one I have >> > tried)... >> >> The issue with musb_h_tx_flush_fifo still persists. Kernel 4.5.0-rc6. >> Just activating SImCOM SIM7100E produces following error: >> >> # usb 1-1.3: new high-speed USB device number 6 using musb-hdrc >> usbcore: registered new interface driver option >> usbserial: USB Serial support registered for GSM modem (1-port) >> option 1-1.3:1.0: GSM modem (1-port) converter detected >> usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB4 >> option 1-1.3:1.1: GSM modem (1-port) converter detected >> usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB5 >> option 1-1.3:1.2: GSM modem (1-port) converter detected >> usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB6 >> option 1-1.3:1.3: GSM modem (1-port) converter detected >> usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB7 >> option 1-1.3:1.4: GSM modem (1-port) converter detected >> usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB8 >> qmi_wwan 1-1.3:1.5: cdc-wdm0: USB WDM device >> qmi_wwan 1-1.3:1.5 wwan0: register 'qmi_wwan' at >> usb-musb-hdrc.0.auto-1.3, WWAN/QMI device, b2:67:d8:31:8f:b6 >> usbcore: registered new interface driver qmi_wwan >> ------------[ cut here ]------------ >> WARNING: CPU: 0 PID: 868 at drivers/usb/musb/musb_host.c:139 >> musb_h_tx_flush_fifo+0xc4/0xe4() >> musb-hdrc musb-hdrc.0.auto: Could not flush host TX2 fifo: csr: 2403 >> Modules linked in: qmi_wwan option usb_wwan ftdi_sio usbserial >> musb_dsps musb_am335x >> CPU: 0 PID: 868 Comm: ModemManager Not tainted 4.5.0-rc6 #47 >> Hardware name: Generic AM33XX (Flattened Device Tree) >> [<c0017e34>] (unwind_backtrace) from [<c0014088>] (show_stack+0x10/0x14) >> [<c0014088>] (show_stack) from [<c02c5b24>] (dump_stack+0xb0/0xe4) >> [<c02c5b24>] (dump_stack) from [<c003bca4>] (warn_slowpath_common+0x7c/0xb8) >> [<c003bca4>] (warn_slowpath_common) from [<c003bd10>] >> (warn_slowpath_fmt+0x30/0x40) >> [<c003bd10>] (warn_slowpath_fmt) from [<c041ec10>] >> (musb_h_tx_flush_fifo+0xc4/0xe4) >> [<c041ec10>] (musb_h_tx_flush_fifo) from [<c041fd54>] >> (musb_cleanup_urb+0xbc/0x130) >> [<c041fd54>] (musb_cleanup_urb) from [<c0420404>] (musb_urb_dequeue+0xf0/0x128) >> [<c0420404>] (musb_urb_dequeue) from [<c03fa82c>] (usb_hcd_unlink_urb+0x50/0x84) >> [<c03fa82c>] (usb_hcd_unlink_urb) from [<c03fba70>] (usb_kill_urb+0x4c/0xc4) >> [<c03fba70>] (usb_kill_urb) from [<bf02f85c>] >> (usb_wwan_close+0xbc/0xf0 [usb_wwan]) >> [<bf02f85c>] (usb_wwan_close [usb_wwan]) from [<c0322ce8>] >> (tty_port_shutdown+0x90/0x9c) >> [<c0322ce8>] (tty_port_shutdown) from [<c03233cc>] (tty_port_close+0x24/0x4c) >> [<c03233cc>] (tty_port_close) from [<c031a258>] (tty_release+0xec/0x478) >> [<c031a258>] (tty_release) from [<c014ef38>] (__fput+0x80/0x1d0) >> [<c014ef38>] (__fput) from [<c005a8d8>] (task_work_run+0x90/0xc4) >> [<c005a8d8>] (task_work_run) from [<c0013a4c>] (do_work_pending+0x8c/0xb4) >> [<c0013a4c>] (do_work_pending) from [<c000f8e8>] (slow_work_pending+0xc/0x20) >> ---[ end trace fb2fc0420e2c4594 ]--- >> >> Could you please take a look at this? >> >> Yegor > > I cannot reproduce it anymore, as commits > 4c2ba0c67394514f3f75c660c9f5d02e66a7efd4 > bba40e6948b94cba71965285fbac31bd078c024a > fixed issue for me (using Inventra DMA on DM3730) - but those two are part > of 4.5.0-rc6 ... You are lucky! I've tried 4.5.0 and I still have this issue, though I'm on am335x and not on DM3730: USB_MUSB_HDRC [=y] USB_MUSB_DUAL_ROLE [=y] USB_MUSB_DSPS [=m] USB_TI_CPPI41_DMA [=y] # usb 1-1.3: new high-speed USB device number 3 using musb-hdrc option 1-1.3:1.0: GSM modem (1-port) converter detected usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB0 option 1-1.3:1.1: GSM modem (1-port) converter detected usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB1 option 1-1.3:1.2: GSM modem (1-port) converter detected usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB2 option 1-1.3:1.3: GSM modem (1-port) converter detected usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB3 option 1-1.3:1.4: GSM modem (1-port) converter detected usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB4 qmi_wwan 1-1.3:1.5: cdc-wdm0: USB WDM device qmi_wwan 1-1.3:1.5 wwan0: register 'qmi_wwan' at usb-musb-hdrc.0.auto-1.3, WWAN/QMI device, be:61:b2:fb:3b:34 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 904 at drivers/usb/musb/musb_host.c:139 musb_h_tx_flush_fifo+0xc4/0xe4() musb-hdrc musb-hdrc.0.auto: Could not flush host TX3 fifo: csr: 2403 Modules linked in: musb_dsps musb_am335x CPU: 0 PID: 904 Comm: ModemManager Not tainted 4.5.0 #1 Hardware name: Generic AM33XX (Flattened Device Tree) [<c0017ecc>] (unwind_backtrace) from [<c0014104>] (show_stack+0x10/0x14) [<c0014104>] (show_stack) from [<c02cad84>] (dump_stack+0xb0/0xe4) [<c02cad84>] (dump_stack) from [<c003be6c>] (warn_slowpath_common+0x7c/0xb8) [<c003be6c>] (warn_slowpath_common) from [<c003bed8>] (warn_slowpath_fmt+0x30/0x40) [<c003bed8>] (warn_slowpath_fmt) from [<c043648c>] (musb_h_tx_flush_fifo+0xc4/0xe4) [<c043648c>] (musb_h_tx_flush_fifo) from [<c04375d0>] (musb_cleanup_urb+0xbc/0x130) [<c04375d0>] (musb_cleanup_urb) from [<c0437c80>] (musb_urb_dequeue+0xf0/0x128) [<c0437c80>] (musb_urb_dequeue) from [<c0406894>] (usb_hcd_unlink_urb+0x50/0x84) [<c0406894>] (usb_hcd_unlink_urb) from [<c0407ad8>] (usb_kill_urb+0x4c/0xc4) [<c0407ad8>] (usb_kill_urb) from [<c0431e84>] (usb_wwan_close+0xbc/0xf0) [<c0431e84>] (usb_wwan_close) from [<c0328644>] (tty_port_shutdown+0x90/0x9c) [<c0328644>] (tty_port_shutdown) from [<c0328d34>] (tty_port_close+0x24/0x4c) [<c0328d34>] (tty_port_close) from [<c0320c88>] (tty_release+0xec/0x474) [<c0320c88>] (tty_release) from [<c0151734>] (__fput+0x80/0x1d0) [<c0151734>] (__fput) from [<c005af34>] (task_work_run+0x90/0xc4) [<c005af34>] (task_work_run) from [<c0013ac8>] (do_work_pending+0x8c/0xb4) [<c0013ac8>] (do_work_pending) from [<c000f8e8>] (slow_work_pending+0xc/0x20) ---[ end trace 8db49db5910fde5c ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Yegor, On Mon, Mar 14, 2016 at 02:40:34PM +0100, Yegor Yefremov wrote: > On Mon, Mar 14, 2016 at 1:11 PM, Ladislav Michl <ladis@linux-mips.org> wrote: > > On Mon, Mar 14, 2016 at 11:25:59AM +0100, Yegor Yefremov wrote: > > > > Hi Yegor, > > > >> Hi Bin, > >> > >> On Wed, Jan 27, 2016 at 11:01 AM, Ladislav Michl <ladis@linux-mips.org> wrote: > >> > Any chance it will actually happen? MUSB is still unusable for me and > >> > doesn't work properly since TI's 2.6.37 kernel (oldest one I have > >> > tried)... > >> > >> The issue with musb_h_tx_flush_fifo still persists. Kernel 4.5.0-rc6. > >> Just activating SImCOM SIM7100E produces following error: > >> > >> # usb 1-1.3: new high-speed USB device number 6 using musb-hdrc > >> usbcore: registered new interface driver option > >> usbserial: USB Serial support registered for GSM modem (1-port) > >> option 1-1.3:1.0: GSM modem (1-port) converter detected > >> usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB4 > >> option 1-1.3:1.1: GSM modem (1-port) converter detected > >> usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB5 > >> option 1-1.3:1.2: GSM modem (1-port) converter detected > >> usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB6 > >> option 1-1.3:1.3: GSM modem (1-port) converter detected > >> usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB7 > >> option 1-1.3:1.4: GSM modem (1-port) converter detected > >> usb 1-1.3: GSM modem (1-port) converter now attached to ttyUSB8 > >> qmi_wwan 1-1.3:1.5: cdc-wdm0: USB WDM device > >> qmi_wwan 1-1.3:1.5 wwan0: register 'qmi_wwan' at > >> usb-musb-hdrc.0.auto-1.3, WWAN/QMI device, b2:67:d8:31:8f:b6 > >> usbcore: registered new interface driver qmi_wwan > >> ------------[ cut here ]------------ > >> WARNING: CPU: 0 PID: 868 at drivers/usb/musb/musb_host.c:139 > >> musb_h_tx_flush_fifo+0xc4/0xe4() > >> musb-hdrc musb-hdrc.0.auto: Could not flush host TX2 fifo: csr: 2403 > >> Modules linked in: qmi_wwan option usb_wwan ftdi_sio usbserial > >> musb_dsps musb_am335x > >> CPU: 0 PID: 868 Comm: ModemManager Not tainted 4.5.0-rc6 #47 > >> Hardware name: Generic AM33XX (Flattened Device Tree) > >> [<c0017e34>] (unwind_backtrace) from [<c0014088>] (show_stack+0x10/0x14) > >> [<c0014088>] (show_stack) from [<c02c5b24>] (dump_stack+0xb0/0xe4) > >> [<c02c5b24>] (dump_stack) from [<c003bca4>] (warn_slowpath_common+0x7c/0xb8) > >> [<c003bca4>] (warn_slowpath_common) from [<c003bd10>] > >> (warn_slowpath_fmt+0x30/0x40) > >> [<c003bd10>] (warn_slowpath_fmt) from [<c041ec10>] > >> (musb_h_tx_flush_fifo+0xc4/0xe4) > >> [<c041ec10>] (musb_h_tx_flush_fifo) from [<c041fd54>] > >> (musb_cleanup_urb+0xbc/0x130) > >> [<c041fd54>] (musb_cleanup_urb) from [<c0420404>] (musb_urb_dequeue+0xf0/0x128) > >> [<c0420404>] (musb_urb_dequeue) from [<c03fa82c>] (usb_hcd_unlink_urb+0x50/0x84) > >> [<c03fa82c>] (usb_hcd_unlink_urb) from [<c03fba70>] (usb_kill_urb+0x4c/0xc4) > >> [<c03fba70>] (usb_kill_urb) from [<bf02f85c>] > >> (usb_wwan_close+0xbc/0xf0 [usb_wwan]) > >> [<bf02f85c>] (usb_wwan_close [usb_wwan]) from [<c0322ce8>] > >> (tty_port_shutdown+0x90/0x9c) > >> [<c0322ce8>] (tty_port_shutdown) from [<c03233cc>] (tty_port_close+0x24/0x4c) > >> [<c03233cc>] (tty_port_close) from [<c031a258>] (tty_release+0xec/0x478) > >> [<c031a258>] (tty_release) from [<c014ef38>] (__fput+0x80/0x1d0) > >> [<c014ef38>] (__fput) from [<c005a8d8>] (task_work_run+0x90/0xc4) > >> [<c005a8d8>] (task_work_run) from [<c0013a4c>] (do_work_pending+0x8c/0xb4) > >> [<c0013a4c>] (do_work_pending) from [<c000f8e8>] (slow_work_pending+0xc/0x20) > >> ---[ end trace fb2fc0420e2c4594 ]--- > >> > >> Could you please take a look at this? > >> > >> Yegor > > > > I cannot reproduce it anymore, as commits > > 4c2ba0c67394514f3f75c660c9f5d02e66a7efd4 > > bba40e6948b94cba71965285fbac31bd078c024a > > fixed issue for me (using Inventra DMA on DM3730) - but those two are part > > of 4.5.0-rc6 ... > > You are lucky! I've tried 4.5.0 and I still have this issue, though > I'm on am335x and not on DM3730: How do you trigger the issue? Plug the modem then unplug it? Can you please try the way in [1] to increase the loops to see if the fifo could be flushed in a longer time? Regards, -Bin. [1] http://www.spinics.net/lists/linux-usb/msg137242.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
--- linux-4.2/drivers/usb/serial/option.c.orig 2015-10-13 02:43:23.363254239 +0200 +++ linux-4.2/drivers/usb/serial/option.c 2015-10-13 02:44:24.663254239 +0200 @@ -1097,6 +1097,7 @@ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */ + { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9090)}, /* QUECTEL UC15 */ { USB_DEVICE_INTERFACE_CLASS(SIERRA_VENDOR_ID, 0x68c0, 0xff), .driver_info = (kernel_ulong_t)&sierra_mc73xx_blacklist }, /* MC73xx */ { USB_DEVICE_INTERFACE_CLASS(SIERRA_VENDOR_ID, 0x9041, 0xff),