Re: kernel BUG at drivers/vhost/vhost.c:LINE! (2)

On Mon, Apr 9, 2018 at 11:28 AM, Stefan Hajnoczi [off-list ref] wrote:

On Mon, Apr 09, 2018 at 05:44:36AM +0300, Michael S. Tsirkin wrote:

quoted

On Mon, Apr 09, 2018 at 10:37:45AM +0800, Stefan Hajnoczi wrote:

quoted

On Sat, Apr 7, 2018 at 3:02 AM, syzbot
[off-list ref] wrote:

quoted

syzbot hit the following crash on upstream commit
38c23685b273cfb4ccf31a199feccce3bdcb5d83 (Fri Apr 6 04:29:35 2018 +0000)
Merge tag 'armsoc-drivers' of
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
syzbot dashboard link:
https://syzkaller.appspot.com/bug?extid=65a84dde0214b0387ccd

To prevent duplicated work: I am working on this one.

Stefan

Do you want to try this patchset:
https://lkml.org/lkml/2018/4/5/665

?

Thanks, I'll give it a shot.

I also noticed a regression in commit
d65026c6c62e7d9616c8ceb5a53b68bcdc050525 ("vhost: validate log when
IOTLB is enabled") and am currently testing a fix.

I have sent a fix:
https://lkml.org/lkml/2018/4/9/390

Stefan