Re: WARNING in hsr_forward_skb

From: Oliver Hartkopp
Date: Tue Mar 12 2019 - 08:02:31 EST

Hi all,

I'm not sure why a Kernel 4.12.0-rc2+ is used here, but I do not get any problems on the my latest 5.0.0-06622-g1fc1cd8399ab tree and I strongly assume this patch showing up in 4.12-rc6

fixes the problem.

Best regards,

On 3/12/19 9:57 AM, syzbot wrote:
syzbot has bisected this bug to:

commit ab42f35d9cb5ac49b5a2a11f940e74f58f207280
Author: Ming Lei <ming.lei@xxxxxxxxxx>
Date:ÂÂ Fri May 26 11:53:19 2017 +0000

ÂÂÂ blk-mq: merge bio into sw queue before plugging

bisection log:Â
start commit:ÂÂ ab42f35d blk-mq: merge bio into sw queue before plugging
git tree:ÂÂÂÂÂÂ upstream
final crash:ÂÂÂ
console output:
kernel config:Â
dashboard link:
userspace arch: amd64
syz repro:ÂÂÂÂÂ
C reproducer:ÂÂ

Reported-by: syzbot+fdce8f2a8903f3ba0e6b@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: ab42f35d ("blk-mq: merge bio into sw queue before plugging")