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From: Marc MERLIN <marc@merlins.org>
To: Josef Bacik <josef@toxicpanda.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: 5.4.8: WARNING: errors detected during scrubbing, corrected
Date: Fri, 10 Jan 2020 08:22:33 -0800	[thread overview]
Message-ID: <20200110162233.GJ4510@merlins.org> (raw)
In-Reply-To: <5b11d0a5-b1be-decb-bc74-5b28866637ee@toxicpanda.com>

On Fri, Jan 10, 2020 at 10:03:57AM -0500, Josef Bacik wrote:
> On 1/9/20 11:28 AM, Marc MERLIN wrote:
> > Howdy,
> > 
> > I have 6 btrfs pools on my laptop on 3 different SSDs.
> > After a few years, one of them is now very slow to scrub
> > and hands my laptop while it runs.
> > This started under 5.3.8, but upgrading to 5.4.8 didn't fix it.
> 
> What the hell kind of laptop are you running that has 3 different SSDs?
> That thing has got to weight a ton.
 
Eheh :)
Thinkpad P70, one M2 drive (room for one mor) and 2x 2.5" SSDs

> Can you run the bcc tool offcputime
> 
> https://github.com/iovisor/bcc/blob/master/tools/offcputime.py
> 
> while scrub is running to get a few stack traces of where we're spending all
> of our time?  It'll help narrow down who is to blame.  Thanks,

Will do and report back, thanks.

Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
 
Home page: http://marc.merlins.org/                       | PGP 7F55D5F27AAF9D08

      reply	other threads:[~2020-01-10 16:22 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-09 16:28 5.4.8: WARNING: errors detected during scrubbing, corrected Marc MERLIN
2020-01-10 15:03 ` Josef Bacik
2020-01-10 16:22   ` Marc MERLIN [this message]

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