On Fri, Sep 28, 2018 at 08:06:26AM +0200, Dmitry Vyukov wrote: > On Fri, Sep 28, 2018 at 7:51 AM, syzbot > <[email protected]> wrote: > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit: c307aaf3eb47 Merge tag 'iommu-fixes-v4.19-rc5' of git://gi.. > > git tree: upstream > > console output: https://syzkaller.appspot.com/x/log.txt?x=13810df1400000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=dfb440e26f0a6f6f > > dashboard link: https://syzkaller.appspot.com/bug?extid=aaa6fa4949cc5d9b7b25 > > 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] > > +LOCKDEP maintainers, > > What does this BUG mean? And how should it be fixed? > > Thanks > > > BUG: MAX_LOCKDEP_CHAINS too low!
Is the his result of endlessly loading and unloading modules? In which case, the fix is: don't do that then.
