From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Martin Knoblauch <knobi@knobisoft.de>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Kernel Testers List <kernel-testers@vger.kernel.org>
Subject: Re: [Bug #13178] Booting very slow
Date: Wed, 29 Apr 2009 00:01:47 +0200 [thread overview]
Message-ID: <200904290001.47757.rjw@sisk.pl> (raw)
In-Reply-To: <209795.21710.qm@web32607.mail.mud.yahoo.com>
On Monday 27 April 2009, Martin Knoblauch wrote:
>
> ----- Original Message ----
>
> > From: Martin Knoblauch <spamtrap@knobisoft.de>
> > To: Rafael J. Wysocki <rjw@sisk.pl>; Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
> > Cc: Kernel Testers List <kernel-testers@vger.kernel.org>
> > Sent: Monday, April 27, 2009 9:18:53 AM
> > Subject: Re: [Bug #13178] Booting very slow
> >
> > ----- Original Message ----
> >
> > > From: Rafael J. Wysocki
> > > To: Linux Kernel Mailing List
> > > Cc: Kernel Testers List ; Martin Knoblauch
> >
> > > Sent: Sunday, April 26, 2009 11:46:31 AM
> > > Subject: [Bug #13178] Booting very slow
> > >
> > > This message has been generated automatically as a part of a report
> > > of regressions introduced between 2.6.28 and 2.6.29.
> > >
> > > The following bug entry is on the current list of known regressions
> > > introduced between 2.6.28 and 2.6.29. Please verify if it still should
> > > be listed and let me know (either way).
> > >
> > >
> > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=13178
> > > Subject : Booting very slow
> > > Submitter : Martin Knoblauch
> > > Date : 2009-04-24 12:45 (3 days old)
> > > References : http://marc.info/?l=linux-kernel&m=124057716231773&w=4
> >
> > Not really sure whether this is a real regression. Between 2.6.28 and 2.6.29 the
> > content of /proc/mounts for sysfs changed from
> >
> > /sys /sys sysfs rw 0 0
> >
> > to
> >
> > none /sys sysfs rw 0 0
> >
> >
> > This breaks RHEL-4.3 userland which parses /proc/mounts in the firmware hotplug
> > agent to find the mount-point for sysfs. As a result firmware loading started to
> > fail in 2.6.29. There is a simple fix in the /etc/hotplug/firmware.agent script
> > (just assume /sys as it is done elsewhere).
> >
> > Your call.
> >
> > Cheers
> > Martin
>
> Actually I have to correct myself. The reason for the failure to parse /proc/mounts for "sysfs" is that there are two lines:
>
> [hotplug]# uname -a
> Linux lpsdm52 2.6.30-rc3-git2-nfs_ra #3 SMP Mon Apr 27 10:21:31 CEST 2009 x86_64 x86_64 x86_64 GNU/Linux
> [hotplug]# grep sysfs /proc/mounts
> none /sys sysfs rw,relatime 0 0
> /sys /sys sysfs rw,relatime 0 0
>
> This breaks the "firmware.agent" /sys-parsing code. There still exists the simple fix to userspace, but I now think that this is a real regression that should be fixed.
Thanks for the update.
Rafael
next prev parent reply other threads:[~2009-04-28 22:02 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-27 8:57 [Bug #13178] Booting very slow Martin Knoblauch
2009-04-28 22:01 ` Rafael J. Wysocki [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-06-07 10:02 2.6.30-rc8-git4: Reported regressions 2.6.28 -> 2.6.29 Rafael J. Wysocki
2009-06-07 10:06 ` [Bug #13178] Booting very slow Rafael J. Wysocki
2009-06-08 8:46 ` Martin Knoblauch
2009-06-08 11:12 ` Rafael J. Wysocki
2009-05-30 19:50 2.6.30-rc7-git4: Reported regressions 2.6.28 -> 2.6.29 Rafael J. Wysocki
2009-05-30 19:55 ` [Bug #13178] Booting very slow Rafael J. Wysocki
2009-06-01 8:13 ` Martin Knoblauch
2009-06-01 20:15 ` [Bug 13178] " Rafael J. Wysocki
2009-05-24 19:27 2.6.30-rc7: Reported regressions 2.6.28 -> 2.6.29 Rafael J. Wysocki
2009-05-24 19:31 ` [Bug #13178] Booting very slow Rafael J. Wysocki
2009-05-25 8:37 ` Martin Knoblauch
2009-05-25 23:04 ` Rafael J. Wysocki
2009-05-27 6:32 ` Andrew Morton
2009-05-27 19:48 ` Rafael J. Wysocki
2009-05-16 19:58 2.6.30-rc6: Reported regressions 2.6.28 -> 2.6.29 Rafael J. Wysocki
2009-05-16 20:06 ` [Bug #13178] Booting very slow Rafael J. Wysocki
2009-05-18 8:15 ` Martin Knoblauch
2009-05-18 17:13 ` Rafael J. Wysocki
2009-05-19 0:26 ` Kay Sievers
2009-05-19 7:22 ` Martin Knoblauch
2009-05-19 8:58 ` Kay Sievers
2009-05-20 10:14 ` Martin Knoblauch
2009-04-26 9:42 2.6.30-rc3-git1: Reported regressions 2.6.28 -> 2.6.29 Rafael J. Wysocki
2009-04-26 9:46 ` [Bug #13178] Booting very slow Rafael J. Wysocki
2009-04-27 7:18 ` Martin Knoblauch
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