* Re: [syzbot] [fs?] INFO: task hung in do_coredump (3) [not found] <6710d2a2.050a0220.d9b66.0189.GAE@google.com> @ 2025-07-07 16:27 ` syzbot 2025-07-08 8:24 ` Pavel Begunkov 0 siblings, 1 reply; 2+ messages in thread From: syzbot @ 2025-07-07 16:27 UTC (permalink / raw) To: anna-maria, asml.silence, axboe, brauner, frederic, gregkh, hdanton, io-uring, jack, linux-fsdevel, linux-kernel, luto, peterz, syzkaller-bugs, tglx, tj, viro syzbot has bisected this issue to: commit 2af89abda7d9c2aeb573677e2c498ddb09f8058a Author: Pavel Begunkov <asml.silence@gmail.com> Date: Thu Aug 24 22:53:32 2023 +0000 io_uring: add option to remove SQ indirection bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14ec9582580000 start commit: 05df91921da6 Merge tag 'v6.16-rc4-smb3-client-fixes' of gi.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=16ec9582580000 console output: https://syzkaller.appspot.com/x/log.txt?x=12ec9582580000 kernel config: https://syzkaller.appspot.com/x/.config?x=45bd916a213c79bb dashboard link: https://syzkaller.appspot.com/bug?extid=a8cdfe2d8ad35db3a7fd syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11a2228c580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16d48bd4580000 Reported-by: syzbot+a8cdfe2d8ad35db3a7fd@syzkaller.appspotmail.com Fixes: 2af89abda7d9 ("io_uring: add option to remove SQ indirection") For information about bisection process see: https://goo.gl/tpsmEJ#bisection ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [syzbot] [fs?] INFO: task hung in do_coredump (3) 2025-07-07 16:27 ` [syzbot] [fs?] INFO: task hung in do_coredump (3) syzbot @ 2025-07-08 8:24 ` Pavel Begunkov 0 siblings, 0 replies; 2+ messages in thread From: Pavel Begunkov @ 2025-07-08 8:24 UTC (permalink / raw) To: syzbot, anna-maria, axboe, brauner, frederic, gregkh, hdanton, io-uring, jack, linux-fsdevel, linux-kernel, luto, peterz, syzkaller-bugs, tglx, tj, viro On 7/7/25 17:27, syzbot wrote: > syzbot has bisected this issue to: > > commit 2af89abda7d9c2aeb573677e2c498ddb09f8058a > Author: Pavel Begunkov <asml.silence@gmail.com> > Date: Thu Aug 24 22:53:32 2023 +0000 > > io_uring: add option to remove SQ indirection Doesn't look like the cause, the previous repro from 28 Oct 2024 didn't even have any io_uring, and the patch only reduces sizes of some allocations. The common part b/w programs is prctl(PR_SET_SYSCALL_USER_DISPATCH_ON), might be related to that. > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14ec9582580000 > start commit: 05df91921da6 Merge tag 'v6.16-rc4-smb3-client-fixes' of gi.. > git tree: upstream > final oops: https://syzkaller.appspot.com/x/report.txt?x=16ec9582580000 > console output: https://syzkaller.appspot.com/x/log.txt?x=12ec9582580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=45bd916a213c79bb > dashboard link: https://syzkaller.appspot.com/bug?extid=a8cdfe2d8ad35db3a7fd > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11a2228c580000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16d48bd4580000 > > Reported-by: syzbot+a8cdfe2d8ad35db3a7fd@syzkaller.appspotmail.com > Fixes: 2af89abda7d9 ("io_uring: add option to remove SQ indirection") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection -- Pavel Begunkov ^ permalink raw reply [flat|nested] 2+ messages in thread
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2025-07-07 16:27 ` [syzbot] [fs?] INFO: task hung in do_coredump (3) syzbot
2025-07-08 8:24 ` Pavel Begunkov
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