Re: 5.4-rc1 boot regression with kmemleak enabled

From: Catalin Marinas
Date: Tue Nov 05 2019 - 06:54:39 EST


(sorry if you got this message twice; our SMTP server went bust)

On Tue, Nov 05, 2019 at 09:14:06AM +0200, Amir Goldstein wrote:
> My kvm-xfstests [1] VM doesn't boot with kmemleak enabled since commit
> c5665868183f ("mm: kmemleak: use the memory pool for early allocations").
>
> There is no console output when running:
>
> $ kvm -boot order=c -net none -machine type=pc,accel=kvm:tcg -cpu host \
> -drive file=$ROOTFS,if=virtio,snapshot=on -vga none -nographic \
> -smp 2 -m 2048 -serial mon:stdio --kernel $KERNEL \
> --append 'root=/dev/vda console=ttyS0,115200'

This was fixed in 5.4-rc4, see commit 2abd839aa7e6 ("kmemleak: Do not
corrupt the object_list during clean-up").

--
Catalin