Re: INFO: task hung in tls_sw_cancel_work_tx

From: Jakub Kicinski
Date: Tue Dec 29 2020 - 14:09:45 EST


On Fri, 07 Feb 2020 15:08:09 -0800 syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: 90568ecf Merge tag 'kvm-5.6-2' of git://git.kernel.org/pub..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=16513809e00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=69fa012479f9a62
> dashboard link: https://syzkaller.appspot.com/bug?extid=ba431dd9afc3a918981a
> compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1036b6b5e00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1651f6e9e00000

#syz dup: INFO: task hung in tls_sk_proto_close

Looks like the exact same bug, perhaps syzbot got LTO enabled around
March which changed the function in which hung is reported..