| Message ID | 20200213025603.149432-1-kuhn.chenqun@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2] hw/char/exynos4210_uart: Fix memleaks in exynos4210_uart_init | expand |
On 2/13/20 3:56 AM, kuhn.chenqun@huawei.com wrote: > From: Chen Qun <kuhn.chenqun@huawei.com> > > It's easy to reproduce as follow: > virsh qemu-monitor-command vm1 --pretty '{"execute": "device-list-properties", > "arguments":{"typename":"exynos4210.uart"}}' > > ASAN shows memory leak stack: > #1 0xfffd896d71cb in g_malloc0 (/lib64/libglib-2.0.so.0+0x571cb) > #2 0xaaad270beee3 in timer_new_full /qemu/include/qemu/timer.h:530 > #3 0xaaad270beee3 in timer_new /qemu/include/qemu/timer.h:551 > #4 0xaaad270beee3 in timer_new_ns /qemu/include/qemu/timer.h:569 > #5 0xaaad270beee3 in exynos4210_uart_init /qemu/hw/char/exynos4210_uart.c:677 > #6 0xaaad275c8f4f in object_initialize_with_type /qemu/qom/object.c:516 > #7 0xaaad275c91bb in object_new_with_type /qemu/qom/object.c:684 > #8 0xaaad2755df2f in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:152 > > Reported-by: Euler Robot <euler.robot@huawei.com> > Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com> > --- > Changes V2 to V1: > -Keep s->wordtime in exynos4210_uart_init (Base on Eduardo and Philippe's comments). Thanks. Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> > --- > hw/char/exynos4210_uart.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/hw/char/exynos4210_uart.c b/hw/char/exynos4210_uart.c > index 25d6588e41..96d5180e3e 100644 > --- a/hw/char/exynos4210_uart.c > +++ b/hw/char/exynos4210_uart.c > @@ -674,8 +674,6 @@ static void exynos4210_uart_init(Object *obj) > SysBusDevice *dev = SYS_BUS_DEVICE(obj); > Exynos4210UartState *s = EXYNOS4210_UART(dev); > > - s->fifo_timeout_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, > - exynos4210_uart_timeout_int, s); > s->wordtime = NANOSECONDS_PER_SECOND * 10 / 9600; > > /* memory mapping */ > @@ -691,6 +689,9 @@ static void exynos4210_uart_realize(DeviceState *dev, Error **errp) > { > Exynos4210UartState *s = EXYNOS4210_UART(dev); > > + s->fifo_timeout_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, > + exynos4210_uart_timeout_int, s); > + > qemu_chr_fe_set_handlers(&s->chr, exynos4210_uart_can_receive, > exynos4210_uart_receive, exynos4210_uart_event, > NULL, s, NULL, true); >
On Thu, 13 Feb 2020 at 10:09, Philippe Mathieu-Daudé <philmd@redhat.com> wrote: > > On 2/13/20 3:56 AM, kuhn.chenqun@huawei.com wrote: > > From: Chen Qun <kuhn.chenqun@huawei.com> > > > > It's easy to reproduce as follow: > > virsh qemu-monitor-command vm1 --pretty '{"execute": "device-list-properties", > > "arguments":{"typename":"exynos4210.uart"}}' > > > > ASAN shows memory leak stack: > > #1 0xfffd896d71cb in g_malloc0 (/lib64/libglib-2.0.so.0+0x571cb) > > #2 0xaaad270beee3 in timer_new_full /qemu/include/qemu/timer.h:530 > > #3 0xaaad270beee3 in timer_new /qemu/include/qemu/timer.h:551 > > #4 0xaaad270beee3 in timer_new_ns /qemu/include/qemu/timer.h:569 > > #5 0xaaad270beee3 in exynos4210_uart_init /qemu/hw/char/exynos4210_uart.c:677 > > #6 0xaaad275c8f4f in object_initialize_with_type /qemu/qom/object.c:516 > > #7 0xaaad275c91bb in object_new_with_type /qemu/qom/object.c:684 > > #8 0xaaad2755df2f in qmp_device_list_properties /qemu/qom/qom-qmp-cmds.c:152 > > > > Reported-by: Euler Robot <euler.robot@huawei.com> > > Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com> > > --- > > Changes V2 to V1: > > -Keep s->wordtime in exynos4210_uart_init (Base on Eduardo and Philippe's comments). > > Thanks. > > Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Applied to target-arm.next, thanks. -- PMM
diff --git a/hw/char/exynos4210_uart.c b/hw/char/exynos4210_uart.c index 25d6588e41..96d5180e3e 100644 --- a/hw/char/exynos4210_uart.c +++ b/hw/char/exynos4210_uart.c @@ -674,8 +674,6 @@ static void exynos4210_uart_init(Object *obj) SysBusDevice *dev = SYS_BUS_DEVICE(obj); Exynos4210UartState *s = EXYNOS4210_UART(dev); - s->fifo_timeout_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, - exynos4210_uart_timeout_int, s); s->wordtime = NANOSECONDS_PER_SECOND * 10 / 9600; /* memory mapping */ @@ -691,6 +689,9 @@ static void exynos4210_uart_realize(DeviceState *dev, Error **errp) { Exynos4210UartState *s = EXYNOS4210_UART(dev); + s->fifo_timeout_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, + exynos4210_uart_timeout_int, s); + qemu_chr_fe_set_handlers(&s->chr, exynos4210_uart_can_receive, exynos4210_uart_receive, exynos4210_uart_event, NULL, s, NULL, true);