SLUB is turned on, and the oops does not seem to happen when SLAB replaces SLUB. I just got lucky with SLAB, or does it sound familiar on ppc?
Regards, Jean-Mickael On 10/4/2010 1:24 PM, Jean-Mickael Guerin wrote: > Hello, > I'm stepping into ppc world and I'd like to know how to read this call trace, > I enabled debug options but I'm not able to track the origin of this bug, I > mean > what happens before handle_page_fault(): > > Unable to handle kernel paging request for data at address 0x00000008 > Faulting instruction address: 0xc00abcd8 > > [c1d0dd40] [c00ab2e4] swapin_readahead+0x34/0xbc > [c1d0dd80] [c009e91c] handle_mm_fault+0x724/0x9b0 > [c1d0dde0] [c0014e10] do_page_fault+0x2e8/0x55c > [c1d0df40] [c000fc8c] handle_page_fault+0xc/0x80 > Instruction dump: > 80010034 7d435378 bb210014 38210030 7c0803a6 4e800020 7d695b78 4bffff00 > 387a007c 4847616d 38000001 7c00f830 <817b0008> 7d3c0214 7f895840 7f9ee378 > Kernel panic - not syncing: Fatal exception > > Another one: > NIP: c00b6980 LR: c00b6978 CTR: 0f9ffb20 > REGS: d6a9dc60 TRAP: 0300 Not tainted (2.6.34.6-00392-g31e1857) > MSR: 10029002 CR: 24004442 XER: 00000000 > DEAR: 00000008, ESR: 00000000 > TASK = da6a7440[4915] 'smrd' THREAD: d6a9c000 CPU: 0 > GPR00: 00000008 d6a9dd10 da6a7440 c0738340 00000000 00000000 00000000 00000001 > GPR08: 00000000 00000000 c00b6978 00000000 44004442 10027f04 c077790c d79f94a8 > GPR16: d6a9dd88 c07a0000 d72301f0 d6a9c000 000001ff 00000000 0f9ffb20 da5c6f78 > GPR24: d79f9440 c0738340 d6a9dd48 00000000 07832400 00000001 00000003 07832400 > NIP [c00b6980] valid_swaphandles+0x19c/0x1d0 > LR [c00b6978] valid_swaphandles+0x194/0x1d0 > Call Trace: > [d6a9dd10] [c00b6978] valid_swaphandles+0x194/0x1d0 (unreliable) > [d6a9dd40] [c00b5a10] swapin_readahead+0x34/0xbc > [d6a9dd80] [c00a9064] handle_mm_fault+0x7c0/0x868 > [d6a9dde0] [c00158d8] do_page_fault+0x2fc/0x570 > [d6a9df40] [c001061c] handle_page_fault+0xc/0x80 > Instruction dump: > 38210030 7c0803a6 4e800020 7d695b78 4bffff04 3d20c074 39298300 3b290040 > 7f23cb78 484843a9 38000001 7c00f030 <817b0008> 7d3f0214 7f895840 7ffdfb78 > Kernel panic - not syncing: Fatal exception > Call Trace: > [d6a9dba0] [c000765c] show_stack+0x40/0x15c (unreliable) > [d6a9dbd0] [c053b780] panic+0x94/0x118 > [d6a9dc20] [c000d630] die+0x15c/0x1bc > [d6a9dc40] [c00155a4] bad_page_fault+0x90/0xc8 > [d6a9dc50] [c001068c] handle_page_fault+0x7c/0x80 > [d6a9dd10] [c00b6978] valid_swaphandles+0x194/0x1d0 > [d6a9dd40] [c00b5a10] swapin_readahead+0x34/0xbc > [d6a9dd80] [c00a9064] handle_mm_fault+0x7c0/0x868 > [d6a9dde0] [c00158d8] do_page_fault+0x2fc/0x570 > [d6a9df40] [c001061c] handle_page_fault+0xc/0x80 > Rebooting in 5 seconds.. > > Thanks, > Jean-Mickael _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
