On Tue, 29 Dec 2020 17:52:56 -0800 Cong Wang wrote:
> On Tue, Dec 29, 2020 at 5:39 PM Jakub Kicinski <k...@kernel.org> wrote:
> >
> > On Mon, 13 Aug 2018 21:40:03 -0700 syzbot wrote:  
> > > Hello,
> > >
> > > syzbot found the following crash on:
> > >
> > > HEAD commit:    78cbac647e61 Merge branch 
> > > 'ip-faster-in-order-IP-fragments'
> > > git tree:       net-next
> > > console output: https://syzkaller.appspot.com/x/log.txt?x=14df4828400000
> > > kernel config:  https://syzkaller.appspot.com/x/.config?x=9100338df26ab75
> > > dashboard link: 
> > > https://syzkaller.appspot.com/bug?extid=eaaf6c4a6a8cb1869d86
> > > compiler:       gcc (GCC) 8.0.1 20180413 (experimental)
> > > syzkaller repro:https://syzkaller.appspot.com/x/repro.syz?x=13069ad2400000
> > >
> > > IMPORTANT: if you fix the bug, please add the following tag to the commit:
> > > Reported-by: syzbot+eaaf6c4a6a8cb1869...@syzkaller.appspotmail.com  
> >
> > #syz invalid
> >
> > Hard to track down what fixed this, but the lockdep splat is mixing up
> > locks from two different hashtables, so there was never a real issue
> > here.  
> 
> This one is probably fixed by:
> 
> commit ff93bca769925a2d8fd7f910cdf543d992e17f07
> Author: Cong Wang <xiyou.wangc...@gmail.com>
> Date:   Tue Aug 14 15:21:31 2018 -0700
> 
>     ila: make lockdep happy again
> 
> given the time of last reproducing...

Ah, yes, matches perfectly! I didn't look for fixes in spinlock.h.

Thanks!

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