Re: [syzbot] BUG: spinlock bad magic in synchronize_srcu

From: Sean Christopherson
Date: Thu Oct 28 2021 - 10:58:26 EST


On Wed, Oct 27, 2021, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
>
> commit eb7511bf9182292ef1df1082d23039e856d1ddfb
> Author: Haimin Zhang <tcs_kernel@xxxxxxxxxxx>
> Date: Fri Sep 3 02:37:06 2021 +0000
>
> KVM: x86: Handle SRCU initialization failure during page track init
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=143e2b02b00000
> start commit: 78e709522d2c Merge tag 'for_linus' of git://git.kernel.org..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=2150ebd7e72fa695
> dashboard link: https://syzkaller.appspot.com/bug?extid=05017ad275a64a3246f8
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10b72895300000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14c42853300000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: KVM: x86: Handle SRCU initialization failure during page track init

#syz fix: KVM: x86: Handle SRCU initialization failure during page track init