From: "Josef 'Jeff' Sipek" <jeffpc@josefsipek.net>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: task blocked for more than 120 seconds
Date: Mon, 23 Apr 2012 13:16:58 -0400 [thread overview]
Message-ID: <20120423171658.GA21260@poseidon.cudanet.local> (raw)
In-Reply-To: <20120421002932.GG9541@dastard>
On Sat, Apr 21, 2012 at 10:29:32AM +1000, Dave Chinner wrote:
> On Fri, Apr 20, 2012 at 09:58:20AM -0400, Josef 'Jeff' Sipek wrote:
...
> > Right. Here's the output from a few minutes ago (I removed the empty lines
> > and redundant column headings):
>
> Thanks, that makes it easy to read ;)
Yeah, I don't know who's brilliant idea it was to output the headings every
time.
> Now comes the "more data needed" bit. I still need the sysrq-w
> output,
D'oh! Totally forgot to put that up somewhere.
http://31bits.net/download/xfs_log.gz
Sadly, it looks like the kernel's ring buffer wrapped while dumping the ~180
stacks.
> but also given the length of the incident, some other data
> is definitely needed:
>
> - a 30s event trace - it'll compress pretty well
> (trace-cmd record -e xfs* sleep 30; trace-cmd report > output.txt)
Hrm... Time to figure out how to get ftrace going on Gentoo. I don't see an
obvious package to install to get trace-cmd.
> - vmstat 1 output for the same period
> - output of /proc/meminfo at the same time
> - the same iostat output for comparison.
Jeff.
--
I'm somewhere between geek and normal.
- Linus Torvalds
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next prev parent reply other threads:[~2012-04-23 17:17 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-18 15:11 task blocked for more than 120 seconds Josef 'Jeff' Sipek
2012-04-18 18:28 ` Ben Myers
2012-04-18 23:48 ` Dave Chinner
2012-04-19 15:46 ` Josef 'Jeff' Sipek
2012-04-19 22:56 ` Dave Chinner
2012-04-20 13:58 ` Josef 'Jeff' Sipek
2012-04-21 0:29 ` Dave Chinner
2012-04-23 17:16 ` Josef 'Jeff' Sipek [this message]
2012-04-23 20:24 ` Josef 'Jeff' Sipek
2012-04-23 23:27 ` Dave Chinner
2012-04-24 15:10 ` Josef 'Jeff' Sipek
2012-09-27 12:49 ` Josef 'Jeff' Sipek
2012-09-27 22:50 ` Dave Chinner
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