Re: inconsistent lock state in xa_destroy

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On Thu, Oct 08, 2020 at 09:01:57AM -0600, Jens Axboe wrote:
> On 10/8/20 9:00 AM, syzbot wrote:
> > Hello,
> > 
> > syzbot found the following issue on:
> > 
> > HEAD commit:    e4fb79c7 Add linux-next specific files for 20201008
> > git tree:       linux-next
> > console output: https://syzkaller.appspot.com/x/log.txt?x=12555227900000
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=568d41fe4341ed0f
> > dashboard link: https://syzkaller.appspot.com/bug?extid=cdcbdc0bd42e559b52b9
> > compiler:       gcc (GCC) 10.1.0-syz 20200507
> > 
> > Unfortunately, I don't have any reproducer for this issue yet.
> > 
> > IMPORTANT: if you fix the issue, please add the following tag to the commit:
> > Reported-by: syzbot+cdcbdc0bd42e559b52b9@xxxxxxxxxxxxxxxxxxxxxxxxx
> 
> Already pushed out a fix for this, it's really an xarray issue where it just
> assumes that destroy can irq grab the lock.

... nice of you to report the issue to the XArray maintainer.



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