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From: Chris Mason <chris.mason@oracle.com>
To: Bruce Guenter <bruce@untroubled.org>
Cc: linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: Slow snapshot deletion
Date: Mon, 01 Aug 2011 20:29:28 -0400	[thread overview]
Message-ID: <1312244943-sup-9814@shiny> (raw)
In-Reply-To: <20110801225915.GA32470@untroubled.org>

Excerpts from Bruce Guenter's message of 2011-08-01 18:59:15 -0400:
> On Mon, Aug 01, 2011 at 04:41:10PM -0600, cwillu wrote:
> > The keystroke should be alt-sysrq-w.
> 
> Right.  What I meant is that no backtraces are showing up.  I was
> actually using
> 
>     echo w > /proc/sysrq-trigger
> 
> and all I was seeing is:
> 
> SysRq : Show Blocked State
>   task                        PC stack   pid father
> 

# once per boot, run dmesg -n8
dmesg -n8

echo w > /proc/sysrq-trigger

      reply	other threads:[~2011-08-02  0:29 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-28 20:04 Slow snapshot deletion Bruce Guenter
2011-07-28 20:28 ` Chris Mason
2011-07-28 20:51   ` Chris Mason
2011-08-04 16:35     ` Bruce Guenter
2011-08-11 15:04       ` Bruce Guenter
2011-08-12  0:40         ` Simon Kirby
2011-08-12 18:21           ` Bruce Guenter
2011-08-12 18:26             ` Simon Kirby
2011-08-01 22:26   ` Bruce Guenter
2011-08-01 22:41     ` cwillu
2011-08-01 22:59       ` Bruce Guenter
2011-08-02  0:29         ` Chris Mason [this message]

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