* Re: INFO: rcu detected stall in tipc_release
[not found] <000000000000264c6305a9c74d9b@google.com>
@ 2020-12-20 9:37 ` syzbot
2020-12-21 9:21 ` Dmitry Vyukov
0 siblings, 1 reply; 2+ messages in thread
From: syzbot @ 2020-12-20 9:37 UTC (permalink / raw)
To: Markus.Elfring, bp, coreteam, davem, fw, fweisbec, hdanton, hpa,
jmaloy, jmattson, joro, kadlec, kuba, kuznet, kvm, linux-kernel,
mingo, mingo, netdev, netfilter-devel, pablo, pbonzini,
sean.j.christopherson, subashab, syzkaller-bugs, tglx,
tuong.t.lien, vkuznets, wanpengli, x86, yoshfuji
syzbot suspects this issue was fixed by commit:
commit cc00bcaa589914096edef7fb87ca5cee4a166b5c
Author: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Date: Wed Nov 25 18:27:22 2020 +0000
netfilter: x_tables: Switch synchronization to RCU
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1445cb37500000
start commit: 7cc2a8ea Merge tag 'block-5.8-2020-07-01' of git://git.ker..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=7be693511b29b338
dashboard link: https://syzkaller.appspot.com/bug?extid=3654c027d861c6df4b06
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12948233100000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11344c05100000
If the result looks correct, please mark the issue as fixed by replying with:
#syz fix: netfilter: x_tables: Switch synchronization to RCU
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: INFO: rcu detected stall in tipc_release
2020-12-20 9:37 ` INFO: rcu detected stall in tipc_release syzbot
@ 2020-12-21 9:21 ` Dmitry Vyukov
0 siblings, 0 replies; 2+ messages in thread
From: Dmitry Vyukov @ 2020-12-21 9:21 UTC (permalink / raw)
To: syzbot
Cc: Markus Elfring, Borislav Petkov, coreteam, David Miller,
Florian Westphal, Frédéric Weisbecker, Hillf Danton,
H. Peter Anvin, jmaloy, Jim Mattson, Joerg Roedel, kadlec,
Jakub Kicinski, Alexey Kuznetsov, KVM list, LKML, Ingo Molnar,
Ingo Molnar, netdev, NetFilter, Pablo Neira Ayuso, Paolo Bonzini,
Christopherson, Sean J, subashab, syzkaller-bugs, Thomas Gleixner,
tuong.t.lien, Vitaly Kuznetsov, wanpengli,
the arch/x86 maintainers, Hideaki YOSHIFUJI
On Sun, Dec 20, 2020 at 10:37 AM syzbot
<syzbot+3654c027d861c6df4b06@syzkaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit cc00bcaa589914096edef7fb87ca5cee4a166b5c
> Author: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
> Date: Wed Nov 25 18:27:22 2020 +0000
>
> netfilter: x_tables: Switch synchronization to RCU
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1445cb37500000
> start commit: 7cc2a8ea Merge tag 'block-5.8-2020-07-01' of git://git.ker..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=7be693511b29b338
> dashboard link: https://syzkaller.appspot.com/bug?extid=3654c027d861c6df4b06
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12948233100000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11344c05100000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: netfilter: x_tables: Switch synchronization to RCU
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
It's not immediately obvious that this is indeed the fix for this, but
also not obvious that this is not the fix for this. Bisection log
looks plausible.
Was this bug in tipc fixed? Is it the fix?
If I don't hear better suggestions I will close this bug as fixed by
this commit later.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-12-20 9:37 ` INFO: rcu detected stall in tipc_release syzbot
2020-12-21 9:21 ` Dmitry Vyukov
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