If you are not seeing any extra messages from the patch, then it could be that you are seeing ZERO_SIZE_PTR or similar errors as well. I will ask if you can try the patch I sent in the other thread. Thanks, Nick On Tue, Jun 30, 2009 at 11:03:40AM +0530, Sachin Sant wrote: > Loglevel set to 8 > Unable to handle kernel paging request for data at address 0xc0000000008f4504 > Faulting instruction address: 0xc000000000391094 > Oops: Kernel access of bad area, sig: 11 [#1] > SMP NR_CPUS=1024 DEBUG_PAGEALLOC NUMA pSeries > Modules linked in: scsi_mod(+) > NIP: c000000000391094 LR: c00000000060cd88 CTR: 0000000000000008 > REGS: c0000000c63f3590 TRAP: 0300 Not tainted (2.6.31-rc1-next-20090629) > MSR: 8000000000009032 <EE,ME,IR,DR> CR: 24222428 XER: 20000001 > DAR: c0000000008f4504, DSISR: 0000000040000000 > TASK = c0000000c63e0a80[62] 'modprobe' THREAD: c0000000c63f0000 CPU: 1 > GPR00: c00000000060cd88 c0000000c63f3810 c000000000b0c488 c0000000008f4500 > GPR04: c0000000ddcd0000 0000000000000001 0000000000000000 c0000000dfff8480 > GPR08: 0000000000000001 c0000000de000010 0000000000000002 c000000000c681f8 > GPR12: 0000000024222428 c000000000be2600 0000000000000000 0000000000000000 > GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 > GPR20: 0000000000000018 ffffffffffffffff 0000000000210d00 0000000000000010 > GPR24: 0000000000210d00 c0000000dfc60ea0 c000000000fc1580 c0000000008f4500 > GPR28: c0000000008f4448 c0000000008f4500 c000000000a87bd0 c0000000dfc60e80 > NIP [c000000000391094] ._raw_spin_lock+0x30/0x184 > LR [c00000000060cd88] ._spin_lock+0x10/0x24 > Call Trace: > [c0000000c63f38b0] [c00000000060cd88] ._spin_lock+0x10/0x24 > [c0000000c63f3920] [c000000000150030] .__slab_alloc_page+0x390/0x430 > [c0000000c63f39e0] [c0000000001518f0] .kmem_cache_alloc+0x160/0x2bc > [c0000000c63f3aa0] [c000000000152308] .kmem_cache_create+0x294/0x2a8 > [c0000000c63f3b90] [d000000000eb177c] .scsi_init_queue+0x38/0x170 [scsi_mod] > [c0000000c63f3c20] [d000000000eb1678] .init_scsi+0x1c/0xe8 [scsi_mod] > [c0000000c63f3ca0] [c0000000000097a0] .do_one_initcall+0x80/0x19c > [c0000000c63f3d90] [c0000000000c7a08] .SyS_init_module+0x118/0x28c > [c0000000c63f3e30] [c000000000008534] syscall_exit+0x0/0x40 > Instruction dump: > 7c0802a6 fba1ffe8 7d800026 7c7d1b78 fbc1fff0 ebc2c268 f8010010 fb61ffd8 > fb81ffe0 fbe1fff8 91810008 f821ff61 <80030004> 6c09dead 2f894ead 419e000c > ---[ end trace e7d1b9681037bc75 ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html