On Mon, Sep 24, 2018 at 2:29 PM, syzbot <[email protected]> wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 6bf4ca7fbc85 Linux 4.19-rc5 > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=159149c6400000 > kernel config: https://syzkaller.appspot.com/x/.config?x=22a62640793a83c9 > dashboard link: https://syzkaller.appspot.com/bug?extid=ef054c4d3f64cd7f7cec > compiler: gcc (GCC) 8.0.1 20180413 (experimental) > > 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: [email protected] > > WARNING: CPU: 0 PID: 9445 at fs/fuse/dev.c:390 request_end+0x82e/0xaa0
And there we have the bug likely caused by the set_bit(FR_SENT, ...) not being inside the fpq->lock-ed region. So that needs to be fixed anyway, apparently. Thanks, Miklos
