Re: Kernel boot panic 3.12-34 > 3.12.35

[Jiri Slaby <jslaby@suse.cz>]

On 12/14/2014, 07:25 PM, Borislav Petkov wrote:
> On Sun, Dec 14, 2014 at 03:41:20PM +0000, Richard Farthing wrote:
>> I patched 3.12.34 to 3.12.35 and the attached now happens at boot.
>> Sorry I don't have better than a photo, cannot get past this.
>>
>> The root FS is EXT2.  It's admittedly an old test machine that I'm using to
>> build up a new configuration, so the  BIOS is a bit old, but it's at least
>> dual core, not totally ancient.
>>
>> Let me know if you need more diagnostic
> 
> That happens very early and the first oops which is the most
> relevant one is cut off and one cannot see what the bug actually is,
> unfortunately.
> 
> Can you catch dmesg of that boot over serial or netconsole or so? Ask if
> you don't know how.
> 
> You could send your .config, maybe it is reproducible in kvm. Also, can
> you send a full dmesg of the successful boot with 3.12.34?

Hmm...

panic from mount_block_root?

That would be:
"VFS: Unable to mount root fs on %s"

Did you use proper root= kernel parameter? Do you have initrd properly
created and installed?

thanks,
-- 
js
suse labs