From: Oliver Neukum <oneukum@suse.de>
To: ebuddington@wesleyan.edu, "list,
USB" <linux-usb-devel@lists.sourceforge.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: khubd and ent:sda1 sucking CPU with reiser4 + USB HD
Date: Tue, 6 Mar 2007 09:52:02 +0100 [thread overview]
Message-ID: <200703060952.02291.oneukum@suse.de> (raw)
In-Reply-To: <20070306041337.GA9198@pool-71-123-121-36.spfdma.east.verizon.net>
Am Dienstag, 6. März 2007 05:13 schrieb Eric Buddington:
> reiser4[khubd(163)]: commit_current_atom (fs/reiser4/txnmgr.c:1049)[nikita-3176]:
> WARNING: Flushing like mad: 16384
> reiser4[khubd(163)]: commit_current_atom (fs/reiser4/txnmgr.c:1049)[nikita-3176]:
> WARNING: Flushing like mad: 32768
> ...<many simiar messages>
>
> Most problematically, khubd and ent:sda1! are conspiring to suck 100%
> CPU time, even after powering off the drive. A bunch of processes are
> stuck in 'D' state, possibly because they're trying to access the dead
> disk, which won't umount ("device is busy").
It looks like khubd allocates memory and enters reiser4. Possibly we have
GFP_KERNEL in khubd where we should have GFP_NOIO or reiser4 has
a problem dealing with IO failures.
Regards
Oliver
next prev parent reply other threads:[~2007-03-06 8:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-06 4:13 khubd and ent:sda1 sucking CPU with reiser4 + USB HD Eric Buddington
2007-03-06 8:52 ` Oliver Neukum [this message]
2007-03-06 15:36 ` [linux-usb-devel] " Alan Stern
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