LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Oliver Neukum <oliver@neukum.org>
To: ebuddington@wesleyan.edu
Cc: linux-kernel@vger.kernel.org
Subject: Re: USB misbehavior causes system hang
Date: Tue, 27 Feb 2007 15:15:58 +0100	[thread overview]
Message-ID: <200702271515.58270.oliver@neukum.org> (raw)
In-Reply-To: <20070227140610.GC6850@pool-71-123-99-133.spfdma.east.verizon.net>

Am Dienstag, 27. Februar 2007 15:06 schrieb Eric Buddington:

Exactly this portion of the log would hold the reason for the reset.
 
> usb 1-6.2: reset high speed USB device using ehci_hcd and address 36
> usb 1-6.2: device descriptor read/64, error -110
> usb 1-6.2: device descriptor read/64, error -110
[..]
> end_request: I/O error, dev sda, sector 919931828
> sd 1:0:0:0: rejecting I/O to offline device
> sd 1:0:0:0: rejecting I/O to offline device
> sd 1:0:0:0: rejecting I/O to offline device

By that point USB is no longer involved. These requests error out
in the SCSI layer.

> My softdog script loops 'date >/tmp/$logfile;echo 1 > /dev/watchdog; sleep
> 30'. Nothing in it accesses the USB disk. /tmp is tmpfs.

If you've written to the USB disk a lot, you are likely to cause writes
to it as soon as you are under memory pressure.
 
> Should the USB failure cause this problem?

No.

	Regards
		Oliver

  reply	other threads:[~2007-02-27 14:17 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-27 14:06 Eric Buddington
2007-02-27 14:15 ` Oliver Neukum [this message]
2007-02-27 21:49 ` Pete Zaitcev
2007-03-01 13:39   ` Eric Buddington
2007-03-05 10:17 ` Andrew Morton
2007-03-05 16:55   ` Eric Buddington

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200702271515.58270.oliver@neukum.org \
    --to=oliver@neukum.org \
    --cc=ebuddington@wesleyan.edu \
    --cc=linux-kernel@vger.kernel.org \
    --subject='Re: USB misbehavior causes system hang' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).