* Re: INFO: task hung in do_ip_vs_set_ctl (2)
[not found] <94eb2c059ce0bca273056940d77d@google.com>
@ 2019-11-26 15:47 ` syzbot
2019-11-27 6:19 ` Eric Biggers
0 siblings, 1 reply; 2+ messages in thread
From: syzbot @ 2019-11-26 15:47 UTC (permalink / raw)
To: coreteam, davem, fw, horms, ja, kadlec, linux-kbuild,
linux-kernel, lvs-devel, mmarek, netdev, netfilter-devel, pablo,
syzkaller-bugs, torvalds, wensong, yamada.masahiro
syzbot has bisected this bug to:
commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun Jul 2 23:07:02 2017 +0000
Linux 4.12
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11a2b78ce00000
start commit: 17dec0a9 Merge branch 'userns-linus' of git://git.kernel.o..
git tree: net-next
kernel config: https://syzkaller.appspot.com/x/.config?x=da08d02b86752ade
dashboard link: https://syzkaller.appspot.com/bug?extid=7810ed2e0cb359580c17
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=130abb47800000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=150a15bb800000
Reported-by: syzbot+7810ed2e0cb359580c17@syzkaller.appspotmail.com
Fixes: 6f7da290413b ("Linux 4.12")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: INFO: task hung in do_ip_vs_set_ctl (2)
2019-11-26 15:47 ` INFO: task hung in do_ip_vs_set_ctl (2) syzbot
@ 2019-11-27 6:19 ` Eric Biggers
0 siblings, 0 replies; 2+ messages in thread
From: Eric Biggers @ 2019-11-27 6:19 UTC (permalink / raw)
To: syzbot
Cc: coreteam, davem, fw, horms, ja, kadlec, linux-kbuild,
linux-kernel, lvs-devel, mmarek, netdev, netfilter-devel, pablo,
syzkaller-bugs, torvalds, wensong, yamada.masahiro
On Tue, Nov 26, 2019 at 07:47:00AM -0800, syzbot wrote:
> syzbot has bisected this bug to:
>
> commit 6f7da290413ba713f0cdd9ff1a2a9bb129ef4f6c
> Author: Linus Torvalds <torvalds@linux-foundation.org>
> Date: Sun Jul 2 23:07:02 2017 +0000
>
> Linux 4.12
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11a2b78ce00000
> start commit: 17dec0a9 Merge branch 'userns-linus' of git://git.kernel.o..
> git tree: net-next
> kernel config: https://syzkaller.appspot.com/x/.config?x=da08d02b86752ade
> dashboard link: https://syzkaller.appspot.com/bug?extid=7810ed2e0cb359580c17
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=130abb47800000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=150a15bb800000
>
> Reported-by: syzbot+7810ed2e0cb359580c17@syzkaller.appspotmail.com
> Fixes: 6f7da290413b ("Linux 4.12")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
This bisection is obviously bogus, though oddly enough the bisection log shows
that v4.12 crashed 10/10 times, while v4.12~1 crashed 0/10 times...
Anyway, this bug looks extremely stale, as it only occurred for a 2-week period
in 2018. Commit 5c64576a77 ("ipvs: fix rtnl_lock lockups caused by
start_sync_thread") might have been the fix, but I'm just invalidating this:
#syz invalid
- Eric
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