On Thu, Jun 07, 2018 at 09:07:01AM -0700, Alexei Starovoitov wrote: > On Thu, Jun 07, 2018 at 02:19:16PM +0200, Dmitry Vyukov wrote: > > On Mon, Jun 4, 2018 at 10:21 PM, syzbot > > <syzbot+2c73319c406f1987d...@syzkaller.appspotmail.com> wrote: > > > Hello, > > > > > > syzbot found the following crash on: > > > > > > HEAD commit: 69b450789136 Merge branch 'misc-BPF-improvements' > > > git tree: bpf-next > > > console output: https://syzkaller.appspot.com/x/log.txt?x=1080d1d7800000 > > > kernel config: https://syzkaller.appspot.com/x/.config?x=e4078980b886800c > > > dashboard link: > > > https://syzkaller.appspot.com/bug?extid=2c73319c406f1987d156 > > > 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: syzbot+2c73319c406f1987d...@syzkaller.appspotmail.com > > > > > > This crash now happens on every other boot of mainline tree. This > > prevents syzbot testing of new code, and just boots machine with > > corrupted memory. Were there any recent changes in umh? +Alexei, you > > seem to touch it last. Could your change cause this? > > looking into it. I think I see the issue. Trying to reproduce.
And this is why a test driver would be useful ;) Luis
