* Re: [syzbot] [cgroups?] possible deadlock in console_lock_spinning_enable (5) [not found] <0000000000001e66f5061fe3b883@google.com> @ 2025-01-17 12:34 ` syzbot 2025-01-21 18:29 ` Michal Koutný 0 siblings, 1 reply; 2+ messages in thread From: syzbot @ 2025-01-17 12:34 UTC (permalink / raw) To: andrii, ast, bpf, cgroups, daniel, davem, elic, gregkh, hannes, hawk, jasowang, jirislaby, john.fastabend, kafai, kpsingh, kuba, len.brown, linux-kernel, linux-pm, linux-serial, mingo, mkoutny, mst, netdev, parav, pavel, rafael, rostedt, songliubraving, syzkaller-bugs, tj, yhs syzbot has bisected this issue to: commit bc0d90ee021f1baecd6aaa010d787eb373aa74dd Author: Parav Pandit <parav@nvidia.com> Date: Tue Jan 5 10:32:02 2021 +0000 vdpa: Enable user to query vdpa device info bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1440c2b0580000 start commit: 619f0b6fad52 Merge tag 'seccomp-v6.13-rc8' of git://git.ke.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=1640c2b0580000 console output: https://syzkaller.appspot.com/x/log.txt?x=1240c2b0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d1cb4a1f148c0861 dashboard link: https://syzkaller.appspot.com/bug?extid=622acb507894a48b2ce9 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=175029df980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16f29a18580000 Reported-by: syzbot+622acb507894a48b2ce9@syzkaller.appspotmail.com Fixes: bc0d90ee021f ("vdpa: Enable user to query vdpa device info") For information about bisection process see: https://goo.gl/tpsmEJ#bisection ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [syzbot] [cgroups?] possible deadlock in console_lock_spinning_enable (5) 2025-01-17 12:34 ` [syzbot] [cgroups?] possible deadlock in console_lock_spinning_enable (5) syzbot @ 2025-01-21 18:29 ` Michal Koutný 0 siblings, 0 replies; 2+ messages in thread From: Michal Koutný @ 2025-01-21 18:29 UTC (permalink / raw) To: syzbot Cc: andrii, ast, bpf, cgroups, daniel, davem, elic, gregkh, hannes, hawk, jasowang, jirislaby, john.fastabend, kafai, kpsingh, kuba, len.brown, linux-kernel, linux-pm, linux-serial, mingo, mst, netdev, parav, pavel, rafael, rostedt, songliubraving, syzkaller-bugs, tj, yhs [-- Attachment #1: Type: text/plain, Size: 802 bytes --] On Fri, Jan 17, 2025 at 04:34:03AM -0800, syzbot <syzbot+622acb507894a48b2ce9@syzkaller.appspotmail.com> wrote: > syzbot has bisected this issue to: > > commit bc0d90ee021f1baecd6aaa010d787eb373aa74dd > Author: Parav Pandit <parav@nvidia.com> > Date: Tue Jan 5 10:32:02 2021 +0000 > > vdpa: Enable user to query vdpa device info > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1440c2b0580000 syzbot got this somehow wrong, it started with the lockdep bug but then switched to a different | crash: BUG: unable to handle kernel paging request in bpf_trace_run3 so the bisecting session yielded (I believe) random commit, didn't it? (The lockdep appears valid, with PSI enabled and the fault injection at unfortunate place (with BPF'd tracepoint).) Michal [-- Attachment #2: signature.asc --] [-- Type: application/pgp-signature, Size: 228 bytes --] ^ permalink raw reply [flat|nested] 2+ messages in thread
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2025-01-17 12:34 ` [syzbot] [cgroups?] possible deadlock in console_lock_spinning_enable (5) syzbot
2025-01-21 18:29 ` Michal Koutný
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