Re: xfs: Deadlock between fs_reclaim and sb_internal

From: Chandan Rajendra
Date: Sun Jul 01 2018 - 05:28:26 EST


On Friday, June 29, 2018 11:48:39 AM IST Chandan Rajendra wrote:
> On Thursday, June 28, 2018 9:31:32 AM IST Ravi Bangoria wrote:
> > Hello Darrick,
> >
> > Lockdep is reporting a deadlock with following trace. Saw this on my
> > powerpc vm with 4GB of ram, running Linus/master kernel. Though, I
> > don't have exact testcase to reproduce it. Is this something known?
>
> I am able to recreate this issue on a ppc64le guest. I will debug this
> and provide updates.
>

Ravi,

The issue has already been reported earlier. See
https://www.spinics.net/lists/linux-xfs/msg20036.html.
I am not familiar with Lockdep code and hence won't be able to help here.

--
chandan