All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jonathan Nieder <jrnieder@gmail.com>
To: Tejun Heo <tj@kernel.org>
Cc: "Jens Axboe" <axboe@kernel.dk>,
	"Amit Shah" <amit.shah@redhat.com>,
	"David Zeuthen" <zeuthen@gmail.com>,
	"Martin Pitt" <martin.pitt@ubuntu.com>,
	"Kay Sievers" <kay.sievers@vrfy.org>,
	linux-kernel@vger.kernel.org, "Jean Schurger" <jean@schurger.org>,
	"Jan Lübbe" <jluebbe@debian.org>,
	"Matthijs Kooijman" <matthijs@stdin.nl>,
	"Jameson Graef Rollins" <jrollins@finestructure.net>,
	"Nacho Barrientos Arias" <nacho@debian.org>
Subject: [regression] CD-ROM polling blocks suspend on some machines (Re: [PATCH 1/2] cdrom: always check_disk_change() on open)
Date: Sat, 3 Sep 2011 17:14:56 -0500	[thread overview]
Message-ID: <20110903221456.GA2877@elie> (raw)
In-Reply-To: <20110406121920.GC4142@mtj.dyndns.org>

Hi,

Various people[1] have been noticing a race (or races?) in which the
cdrom_id and scsi_id programs from udev can get stuck in the D state
if udev doesn't sleep a little while before running them.  This
prevents the machine from suspending.  The problem was discovered with
Debian kernels

  2.6.39-1
  2.6.39-2
  3.0.0-1

and was not experienced with kernel

  2.6.38-5

(These kernels are closely based on v2.6.39, v2.6.39.1, v3.0, and
v2.6.38.5, respectively.)  Reverting commit bf2253a6f00e (cdrom:
always check_disk_change() on open, 2011-04-29) seems to avoid
trouble.

One common theme seems to be DVD drives.  Details at [1].

Known problem?  Any ideas for tracking it down?

Looking forward to your thoughts,
Jonathan

[1] <http://bugs.debian.org/628600>.  Submitters cc-ed.

  parent reply	other threads:[~2011-09-03 22:15 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-04-06 12:20 [PATCH 1/2] cdrom: always check_disk_change() on open Tejun Heo
2011-04-06 12:22 ` [PATCH 2/2] block: rescan partitions on invalidated devices on -ENOMEDIA too Tejun Heo
2011-04-29  6:57 ` [PATCH 1/2] cdrom: always check_disk_change() on open Amit Shah
2011-04-29  8:15   ` Tejun Heo
2011-04-29  8:15   ` Jens Axboe
2011-04-29  8:16     ` Tejun Heo
2011-04-29  8:28       ` Jens Axboe
2011-05-10  6:42     ` Amit Shah
2011-05-10  7:44       ` Jens Axboe
2011-05-10  8:13         ` Amit Shah
2011-09-03 22:14 ` Jonathan Nieder [this message]
2011-09-04  2:42   ` [regression] CD-ROM polling blocks suspend on some machines (Re: [PATCH 1/2] cdrom: always check_disk_change() on open) Tejun Heo
2011-09-04 15:05     ` [regression] CD-ROM polling blocks suspend on some machines Jonathan Nieder
2011-09-05  1:49     ` [regression] CD-ROM polling blocks suspend on some machines (Re: [PATCH 1/2] cdrom: always check_disk_change() on open) Jameson Graef Rollins
2011-09-06 17:45       ` Tejun Heo
2011-09-07  8:50         ` Matthijs Kooijman
2011-09-11  4:08           ` Tejun Heo
2011-10-24 20:25             ` Gaudenz Steinlin
2011-10-26 18:26               ` Matthijs Kooijman - Brevidius
2011-10-26 22:25                 ` Tejun Heo
2011-10-28 13:47                   ` Matthijs Kooijman
2011-10-30 20:35                     ` Tejun Heo
2011-10-31  9:28                       ` Matthijs Kooijman
2011-10-31 15:26                         ` Tejun Heo
2011-12-19 11:12                           ` Matthijs Kooijman
2011-12-19 16:44                             ` Tejun Heo

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=20110903221456.GA2877@elie \
    --to=jrnieder@gmail.com \
    --cc=amit.shah@redhat.com \
    --cc=axboe@kernel.dk \
    --cc=jean@schurger.org \
    --cc=jluebbe@debian.org \
    --cc=jrollins@finestructure.net \
    --cc=kay.sievers@vrfy.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=martin.pitt@ubuntu.com \
    --cc=matthijs@stdin.nl \
    --cc=nacho@debian.org \
    --cc=tj@kernel.org \
    --cc=zeuthen@gmail.com \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.