| Message ID | cover.1715750938.git.namcao@linutronix.de (mailing list archive) |
|---|---|
| Headers | show |
| Series | riscv: fix debug_pagealloc | expand |
Forgot to Cc the original author. +Cc: Zong Li <zong.li@sifive.com> On Wed, May 15, 2024 at 07:50:38AM +0200, Nam Cao wrote: > The debug_pagealloc feature is not functional on RISCV. With this feature > enabled (CONFIG_DEBUG_PAGEALLOC=y and debug_pagealloc=on), kernel crashes > early during boot. > > QEMU command that can reproduce this problem: > qemu-system-riscv64 -machine virt \ > -kernel Image \ > -append "console=ttyS0 root=/dev/vda debug_pagealloc=on" \ > -nographic \ > -drive "file=root.img,format=raw,id=hd0" \ > -device virtio-blk-device,drive=hd0 \ > -m 4G \ > > This series makes debug_pagealloc functional. > > Nam Cao (2): > riscv: force PAGE_SIZE linear mapping if debug_pagealloc is enabled > riscv: rewrite __kernel_map_pages() to fix sleeping in invalid context > > arch/riscv/mm/init.c | 3 +++ > arch/riscv/mm/pageattr.c | 28 ++++++++++++++++++++++------ > 2 files changed, 25 insertions(+), 6 deletions(-) > > -- > 2.39.2 >
Hello: This series was applied to riscv/linux.git (for-next) by Palmer Dabbelt <palmer@rivosinc.com>: On Wed, 15 May 2024 07:50:38 +0200 you wrote: > The debug_pagealloc feature is not functional on RISCV. With this feature > enabled (CONFIG_DEBUG_PAGEALLOC=y and debug_pagealloc=on), kernel crashes > early during boot. > > QEMU command that can reproduce this problem: > qemu-system-riscv64 -machine virt \ > -kernel Image \ > -append "console=ttyS0 root=/dev/vda debug_pagealloc=on" \ > -nographic \ > -drive "file=root.img,format=raw,id=hd0" \ > -device virtio-blk-device,drive=hd0 \ > -m 4G \ > > [...] Here is the summary with links: - [1/2] riscv: force PAGE_SIZE linear mapping if debug_pagealloc is enabled https://git.kernel.org/riscv/c/c67ddf59ac44 - [2/2] riscv: rewrite __kernel_map_pages() to fix sleeping in invalid context https://git.kernel.org/riscv/c/fb1cf0878328 You are awesome, thank you!