Re: Linux 2.6.35

From: Donald Parsons
Date: Mon Aug 02 2010 - 00:21:36 EST


On Sun, 2010-08-01 at 21:38 -0600, Bjorn Helgaas wrote:
> On Sunday, August 01, 2010 08:31:02 pm Donald Parsons wrote:
> > 2.6.35 still fails to boot for me, as first reported here:
> > http://lkml.indiana.edu/hypermail/linux/kernel/1007.3/01144.html
> >
> > I've manually bisected it down to around May 20 between
> > 2.6.34-git4 (boots) and 2.6.34-git5 (boot fails)
> > Also -git[23] boot, and -git8, -rc[126], rc6-git[136] all fail.
> >
> > Unfortunately first time I tried was with 2.6.35-rc6 and
> > it failed to boot.
> >
> > Failure when switching from initramfs to real /root?
> > Removing kernel "quiet" param appears to show several
> > lines listing:
> >
> > usb drives/hubs? followed by
> > dracut switching root (when booting works)
> > or
> > usb drives/hubs? followed by
> > (missing dracut... line)
> > No root device found
> > Boot has failed, sleeping forever. (when it does not boot)
> >
> > Grub, typical entry:
> > title Fedora (2.6.35)
> > root (hd0,0)
> > kernel /vmlinuz-2.6.35 ro
> > root=UUID=686dc496-8814-4c36-8fb7-5ded2916e825 rhgb
> > SYSFONT=latarcyrheb-sun16 LANG=en_US.UTF-8 KEYTABLE=us
> > rdblacklist=nouveau init=/sbin/bootchartd
> > initrd /initramfs-2.6.35.img
> >
> >
> > My boot failure seems to be different than other two reported
> > in the thread "2.6.35-rc6-git6: Reported regressions from 2.6.34"
> > under Bug #16173 and #16228
>
> Will it boot with the "pci=nocrs" option? If so, please open a

No, I tried this on a few attempts when I saw it mentioned under
bug #16228. But it had no effect/benefit. Sorry, I should have
mentioned this.

> report at https://bugzilla.kernel.org, mark it a regression, assign
> it to me, and attach the complete dmesg log. And please respond to
> this thread with a pointer to the bugzilla.
>
> Otherwise, a complete console log should have a clue. The best
> thing would be a log from a serial console or netconsole, with
> "ignore_loglevel".

Maybe I will try netconsole tomorrow. But is Ethernet up when
this boot failure happens? I think not, since initramfs should
not need networking.

Should I try building sata driver into kernel? Oh, I am using
ext3, and fdisk -l shows:

Disk /dev/sda: 320.1 GB, 320072933376 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 50 401593+ 83 Linux (/boot)
/dev/sda2 51 7051 56235532+ 83 Linux (/)
/dev/sda3 7052 8377 10651095 82 Linux swap
/dev/sda4 8378 38913 245280420 83 Linux ()
Disk /dev/sdb: 750.2 GB, 750156374016 bytes
/dev/sdb1 1 91201 732572001 83 Linux (/home)

> Thanks a lot for your report!
>
> Bjorn

And thanks for your interest!
Don



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