Hi,

Michal Piotrowski wrote:
> ------------[ cut here ]------------
> kernel BUG at /usr/src/linux-mm/include/linux/mm.h:302!
> invalid opcode: 0000 [#1]
> PREEMPT SMP DEBUG_PAGEALLOC
> last sysfs file: /class/vc/vcsa7/dev
> Modules linked in: binfmt_misc thermal fan processor ipv6 w83627hf
> hwmon_vid hwmon i2c_isa snd_intel8x0 snd_ac97_codec snd_ac97_bus
> sk98lin snd_pcm_oss snd_mixer_oss skge intel_agp snd_pcm snd_timer snd
> soundcore i2c_i801 parport_pc parport snd_page_alloc 8250_pnp 8250
> serial_core agpgart rtc ide_cd cdrom hw_random unix
> CPU:    0
> EIP:    0060:[<b013fe81>]    Not tainted VLI
> EFLAGS: 00210246   (2.6.16-rc1-mm3 #1)
> EIP is at release_pages+0x33/0x15e

Is it repeatable?

If so, I'd imagine it must be a specific driver page which is not properly
refcounted somewhere. A bug in generic code would have shown up elsewhere
by now.

Can you try something like the attached patch and see what it gives you?

Thanks,
Nick

-- 
SUSE Labs, Novell Inc.