Re: [syzbot] possible deadlock in jbd2_journal_lock_updates

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On Mon 21-11-22 16:18:09, Thorsten Leemhuis wrote:
> On 21.11.22 16:00, Jan Kara wrote:
> > OK, attached patch fixes the deadlock for me. Can you test whether it fixes
> > the problem for you as well? Thanks!
> 
> Jan, many thx for taking care of this. There is one small thing to
> improve, please add the following tags to your patch:
> 
> Link:
> https://lore.kernel.org/r/c77bf00f-4618-7149-56f1-b8d1664b9d07@xxxxxxxxxxxxxxxxxxx/
 
Good point. Thanks, added!

> Not sure, maybe a reported-by for Syzbot would be good as well, see:
> https://lore.kernel.org/linux-ext4/000000000000892a3005e5b5d96c@xxxxxxxxxx/

The syzbot report is actually unrelated. So far I think that the bisection
that landed guys on the same commit as syzbot was just luck or maybe change
in timing that made the problem easier to reproduce. 

								Honza
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR



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