On Monday 27 April 2009, Martin Knoblauch wrote: > > ----- Original Message ---- > > > From: Martin Knoblauch <spamtrap@xxxxxxxxxxxx> > > To: Rafael J. Wysocki <rjw@xxxxxxx>; Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx> > > Cc: Kernel Testers List <kernel-testers@xxxxxxxxxxxxxxx> > > 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 -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
