Re: [Powerpc/SLQB] Next June 06 : BUG during scsi initialization

2009-06-12 Thread Nick Piggin
On Fri, Jun 12, 2009 at 11:14:10AM +0530, Sachin Sant wrote: Nick Piggin wrote: I can't really work it out. It seems to be the kmem_cache_cache which has a problem, but there have already been lots of caches created and even this samw cache_node already used right beforehand with no problem.

Re: [Powerpc/SLQB] Next June 06 : BUG during scsi initialization

2009-06-12 Thread Sachin Sant
Nick Piggin wrote: I was able to boot yesterday's next (20090611) on this machine. Not sure Still with SLQB? With debug options turned on? Ah .. spoke too soon. The kernel was not compiled with SLQB. Sorry about the confusion. I can't seem to select SLQB as the slab allocator. Thanks

Re: [Powerpc/SLQB] Next June 06 : BUG during scsi initialization

2009-06-12 Thread Nick Piggin
On Fri, Jun 12, 2009 at 01:38:50PM +0530, Sachin Sant wrote: Nick Piggin wrote: I was able to boot yesterday's next (20090611) on this machine. Not sure Still with SLQB? With debug options turned on? Ah .. spoke too soon. The kernel was not compiled with SLQB. Sorry about the

Re: [Powerpc/SLQB] Next June 06 : BUG during scsi initialization

2009-06-12 Thread Pekka Enberg
On Fri, 2009-06-12 at 10:21 +0200, Nick Piggin wrote: On Fri, Jun 12, 2009 at 01:38:50PM +0530, Sachin Sant wrote: Nick Piggin wrote: I was able to boot yesterday's next (20090611) on this machine. Not sure Still with SLQB? With debug options turned on? Ah .. spoke too

Re: [Powerpc/SLQB] Next June 06 : BUG during scsi initialization

2009-06-12 Thread Stephen Rothwell
Hi Pekka, On Fri, 12 Jun 2009 11:25:39 +0300 Pekka Enberg penb...@cs.helsinki.fi wrote: Hmm, SLQB in my for-next branch. Stephen, is slab.git dropped from linux-next or something? Yesterday (next-20090611) the slab tree for linux-next had only one commit in it (SLUB: Out-of-memory

Re: [Powerpc/SLQB] Next June 06 : BUG during scsi initialization

2009-06-12 Thread Pekka Enberg
On Fri, 2009-06-12 at 18:35 +1000, Stephen Rothwell wrote: Hi Pekka, On Fri, 12 Jun 2009 11:25:39 +0300 Pekka Enberg penb...@cs.helsinki.fi wrote: Hmm, SLQB in my for-next branch. Stephen, is slab.git dropped from linux-next or something? Yesterday (next-20090611) the slab tree for

Re: [Powerpc/SLQB] Next June 06 : BUG during scsi initialization

2009-06-11 Thread Sachin Sant
Nick Piggin wrote: I can't really work it out. It seems to be the kmem_cache_cache which has a problem, but there have already been lots of caches created and even this samw cache_node already used right beforehand with no problem. Unless a CPU or node comes up or something right at this point

Re: [Powerpc/SLQB] Next June 06 : BUG during scsi initialization

2009-06-09 Thread Nick Piggin
On Mon, Jun 08, 2009 at 05:42:14PM +0530, Sachin Sant wrote: Pekka J Enberg wrote: Hi Sachin, __slab_alloc_page: nid=2, cache_node=c000de01ba00, cache_list=c000de01ba00 __slab_alloc_page: nid=2, cache_node=c000de01bd00, cache_list=c000de01bd00 __slab_alloc_page: nid=2,

Re: [Powerpc/SLQB] Next June 06 : BUG during scsi initialization

2009-06-08 Thread Sachin Sant
Pekka J Enberg wrote: Hi Sachin, On Fri, 5 Jun 2009, Sachin Sant wrote: I can still recreate this bug on a Power 6 hardware with today's next tree. I can recreate this problem at will. Let me know if i can help in debugging this problem. Can you please reproduce the issue with this

Re: [Powerpc/SLQB] Next June 06 : BUG during scsi initialization

2009-06-07 Thread Pekka J Enberg
Hi Sachin, On Fri, 5 Jun 2009, Sachin Sant wrote: I can still recreate this bug on a Power 6 hardware with today's next tree. I can recreate this problem at will. Let me know if i can help in debugging this problem. Can you please reproduce the issue with this debugging patch applied and

[Powerpc/SLQB] Next June 06 : BUG during scsi initialization

2009-06-05 Thread Sachin Sant
Sachin Sant wrote: Today's Next tree failed to boot on a Power6 box with following BUG : BUG: spinlock bad magic on CPU#1, modprobe/63 Unable to handle kernel paging request for data at address 0xc994838 Faulting instruction address: 0xc035f5a8 Oops: Kernel access of bad area, sig: