Messages in this thread |  | | | Date | Wed, 29 Apr 2009 10:24:20 -0700 (PDT) | | From | Martin Knoblauch <> | | Subject | Re: Analyzed/Solved: Booting 2.6.30-rc2-git7 very slow |
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----- Original Message ---- > From: Al Viro <viro@ZenIV.linux.org.uk> > To: Andrew Morton <akpm@linux-foundation.org> > Cc: Mike Galbraith <efault@gmx.de>; Martin Knoblauch <knobi@knobisoft.de>; Rafael J. Wysocki <rjw@sisk.pl>; linux-kernel@vger.kernel.org; tigran aivazian <tigran@aivazian.fsnet.co.uk> > Sent: Wednesday, April 29, 2009 2:08:28 PM > Subject: Re: Analyzed/Solved: Booting 2.6.30-rc2-git7 very slow > > On Wed, Apr 29, 2009 at 01:17:55AM -0700, Andrew Morton wrote: > > > > > > Questions remains: was this intentional? It breaks existing userspace > and should therefore be considered a regression - right? On the other hand, it > will never be a problem for RHEL-4/5 kernels, unless the change in 2.6.29 gets > backported. Any ideas? > > > > > > > > afaik that was unintentional and was probably a mistake. > > > > > > > > I wonder how we did that. > > > > > > > > > > [hotplug]# grep sysfs /proc/mounts > > > > none /sys sysfs rw,relatime 0 0 > > > > /sys /sys sysfs rw,relatime 0 0 > > > > > > ___(I wonder how the heck that is accomplished) > > > > Beats me. I'm not seeing likely changes in fs/proc/base.c or around > > show_mountinfo(). Maybe sysfs broke in an ingenious way. (hopefully > > cc's viro). > > Er... Somebody mounting sysfs twice? From some init script and from > /etc/fstab, perhaps? That definitely looks like two mount(2) had to > have been done to cause that...
One definitely comes from /etc/fstab, but I am not aware of any other script mounting sysfs in my userspace.
Cheers Martin
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