From mboxrd@z Thu Jan  1 00:00:00 1970
From: Johannes Thumshirn <jthumshirn@suse.de>
Subject: Re: bcache_gc: BUG: soft lockup
Date: Fri, 13 Nov 2015 13:37:25 +0100
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To: Yannis Aribaud <bugs@d6bell.net>, linux-bcache@vger.kernel.org

Hi Yannis,
On Fri, 2015-11-13 at 12:09 +0000, Yannis Aribaud wrote:
> Hi,
> 
> I recently tried bcache on a vanilla 4.1.12 kernel and got those
> strange soft lockup issues.
> This happens at the system shutdown only but not every time, thus I
> suppose that it's related to bcache devices stopping.
> 
> My setup use 3 bcache devices each using dedicated hardware devices
> (1 HDD and 1 SSD), cache_mode is writeback and bucket/block sizes are
> the default ones.
> 
> I saw that a similar problem was solved in 3.17 so maybe it's a
> regression.

do you have a stacktrace, so we can see where it's locking up?

Thanks,
Johannes