panic() at panic+0x147

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: d6477fdb83ee Refactor a tangle in ssl3_send_client_verify(..
git tree: https://github.com/openbsd/src.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=1468816d400000
dashboard link: https://syzkaller.appspot.com/bug?extid=f11dfe51dfa6f37822b3
compiler:

Unfortunately, I don't have any reproducer for this crash yet.

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+f11dfe...@syzkaller.appspotmail.com

panic() at panic+0x147
fifo_badop(ffffffff817c3e32) at fifo_badop+0x12
VOP_STRATEGY(ffffff0073c0e800) at VOP_STRATEGY+0x6b
bwrite(ffff800021141fd0) at bwrite+0x195
VOP_BWRITE(ffffff006bbd5968) at VOP_BWRITE+0x47
ufs_mkdir(ffffffff81e14008) at ufs_mkdir+0x5a9
VOP_MKDIR(ffff8000210c3780,1ed,ffffff9c,ffff800021141f88) at VOP_MKDIR+0x65
domkdirat(ffff8000211421c0,ffff8000210c3780,ffff8000210a5338,880) at
domkdirat+0x10f
syscall(0) at syscall+0x3e4
Xsyscall(6,88,7f7ffffe9640,88,0,7f7ffffe9680) at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffe96b0, count: 4
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.


---
This bug is generated by a bot. It may contain errors.
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[black...@gmail.com]

#syz dup: panic: fifo_badop called

[syzbot]

> #syz dup: panic: fifo_badop called

Can't find the corresponding bug.


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[syzbot]

> Let's try one more time...

> #syz dup: panic: fifo_badop called

Can't find the corresponding bug.

>> https://groups.google.com/d/msgid/syzkaller-openbsd-bugs/00000000000004bf0f057d9669c2%40google.com.

[Dmitry Vyukov]

Let's try one more time...

#syz dup: panic: fifo_badop called

On Sat, Dec 22, 2018 at 7:24 AM syzbot
<syz...@syzkaller.appspotmail.com> wrote:
>

> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-openbsd-bugs/00000000000004bf0f057d9669c2%40google.com.

[syzbot]

> Let's try one more time...

> #syz dup: panic: fifo_badop called

> https://groups.google.com/d/msgid/syzkaller-openbsd-bugs/CACT4Y%2BbiVEU%3DzPF_e0FJ9BdPNkAaGN20DtvkRAFmKr5TWaM9wQ%40mail.gmail.com.

[Dmitry Vyukov]

Wait, we are not sending this to proper syzbot email, so it indeed
can't figure out what bug we are talking about.

#syz dup: panic: fifo_badop called

> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-openbsd-bugs/000000000000dbfda1057d9868ff%40google.com.

[Greg Steuck]

That's what I get for using the mobile groups UI :) Sorry about the noise.

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