Re: ext4 lockdep splat with v4.9-rc1
From: Jan Kara <jack@suse.cz>
Date: 2016-10-21 10:05:35
Also in:
linux-fsdevel
From: Jan Kara <jack@suse.cz>
Date: 2016-10-21 10:05:35
Also in:
linux-fsdevel
On Thu 20-10-16 20:06:16, Ross Zwisler wrote:
In my DAX PMD regression testing I hit the lockdep splat at the end of this mail. I've tried to reproduce it multiple times, but haven't been able to. I'm hoping that the lockdep splat contains enough information by itself to be useful. This testing was done with v8 of my DAX PMD series, but I don't think my series modifies any of the locks in the splat so I think the problem should exist with v4.9-rc1 as well.
Thanks for report. Yes, I'm aware of the problem and it started happening after update of lockdep instrumentation in the fs freezing code. I didn't get to fixing it yet. Honza -- Jan Kara [off-list ref] SUSE Labs, CR