On Sun, Sep 27, 2020 at 10:57:24AM +0200, Dmitry Vyukov wrote: > On Thu, Oct 31, 2019 at 9:39 PM syzbot > <syzbot+62ebe501c1ce9a91f68c@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > > > syzbot has found a reproducer for the following crash on: > > > > HEAD commit: 49afce6d Add linux-next specific files for 20191031 > > git tree: linux-next > > console output: https://syzkaller.appspot.com/x/log.txt?x=11eea36ce00000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=3c5f119b33031056 > > dashboard link: https://syzkaller.appspot.com/bug?extid=62ebe501c1ce9a91f68c > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14c162f4e00000 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=131b5eb8e00000 > > > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > > Reported-by: syzbot+62ebe501c1ce9a91f68c@xxxxxxxxxxxxxxxxxxxxxxxxx > > This is another LOCKDEP-related top crasher. syzkaller finds just this > one (see below). > I think we need to disable LOCKDEP temporary until this and other > LOCKDEP issues are resolved. I've filed > https://github.com/google/syzkaller/issues/2140 to track > disabling/enabling. There is a potential patch for it: https://lkml.kernel.org/r/20200917080210.108095-1-boqun.feng@xxxxxxxxx Let me try and digest it.