发件人: Tang Zw <shicenci@gmail.com>
发送时间: 2026年4月22日 10:03
收件人: David Hildenbrand (Arm) <david@kernel.org>; linux-mm@kvack.org <linux-mm@kvack.org>; akpm@linux-foundation.org <akpm@linux-foundation.org>; hannes@cmpxchg.org <hannes@cmpxchg.org>
抄送: kvm@vger.kernel.org <kvm@vger.kernel.org>; linux-kernel@vger.kernel.org <linux-kernel@vger.kernel.org>; pbonzini@redhat.com <pbonzini@redhat.com>; seanjc@google.com <seanjc@google.com>
主题: 回复: [BUG] WARNING in workingset_activation triggered by KVM page fault path on Linux 7.0.0-08391-g1d51b370a0f8

Hi David,

Thanks for pointing this out.

You are right. The commit id I sent was incorrect. I mistakenly used the
git describe-style suffix g1d51b370a0f8, but the actual git commit is:

1d51b370a0f8f642f4fc84c795fbedac0fcdbbd2

The short commit id is:

1d51b370a0f8

Sorry for the confusion.

I am also re-checking whether the kernel image was built from a clean tree
and whether there were any local modifications when the crash was reproduced,
so that the reported source line numbers match the exact build.

Thanks.

发件人: David Hildenbrand (Arm) <david@kernel.org>
发送时间: 2026年4月21日 22:06
收件人: Zw Tang <shicenci@gmail.com>; linux-mm@kvack.org <linux-mm@kvack.org>; akpm@linux-foundation.org <akpm@linux-foundation.org>; hannes@cmpxchg.org <hannes@cmpxchg.org>
抄送: kvm@vger.kernel.org <kvm@vger.kernel.org>; linux-kernel@vger.kernel.org <linux-kernel@vger.kernel.org>; pbonzini@redhat.com <pbonzini@redhat.com>; seanjc@google.com <seanjc@google.com>
主题: Re: [BUG] WARNING in workingset_activation triggered by KVM page fault path on Linux 7.0.0-08391-g1d51b370a0f8

On 4/21/26 13:17, Zw Tang wrote:
> Hi,
>
> I am reporting a WARNING in workingset_activation() triggered by a
> syzkaller C reproducer on Linux 7.0.0-08391-g1d51b370a0f8.

g1d51b370a0f8 is not a known git commit id.

Do you have an upstream git commit where the line number
include/linux/memcontrol.h:381 makes sense?

--
Cheers,

David