Hi all, On Thu, 6 Sep 2012 11:39:16 -0700 Tony Luck <tony.luck@xxxxxxxxx> wrote: > > Worked fine yesterday on next-20120905, crashes today. First sign of trouble > was an unaligned access, then a NULL dereference. SL*B related bits of > my config: > > CONFIG_SLUB_DEBUG=y > # CONFIG_SLAB is not set > CONFIG_SLUB=y > CONFIG_SLABINFO=y > # CONFIG_SLUB_DEBUG_ON is not set > # CONFIG_SLUB_STATS is not set I get a similar crash on some of my PowerPC boot tests: config bits: CONFIG_SLUB_DEBUG=y # CONFIG_SLAB is not set CONFIG_SLUB=y CONFIG_SLABINFO=y # CONFIG_SLUB_DEBUG_ON is not set # CONFIG_SLUB_STATS is not set console log: Memory: 10297068k/10485760k available (12364k kernel code, 188692k reserved, 1228k data, 904k bss, 472k init) Unable to handle kernel paging request for data at address 0x6c6f632d34303936 Faulting instruction address: 0xc0000000001ba73c Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=32 NUMA pSeries Modules linked in: NIP: c0000000001ba73c LR: c0000000001ba9a4 CTR: 0000000000000000 REGS: c000000000d2f860 TRAP: 0300 Not tainted (3.6.0-rc4-autokern1) MSR: 8000000002001032 <SF,VEC,ME,IR,DR,RI> CR: 24028084 XER: 00000001 SOFTE: 0 CFAR: 00000000000057ac DAR: 6c6f632d34303936, DSISR: 40000000 TASK = c000000000c58b00[0] 'swapper' THREAD: c000000000d2c000 CPU: 0 GPR00: 0000000080010400 c000000000d2fae0 c000000000d2bf70 c00000027e000000 GPR04: f000000008b901c0 c00000027e008000 0000000000000000 0000000000000001 GPR08: 0000000022000000 6c6f632d34303936 000000000000000e 0000000000000000 GPR12: 0000000044022088 c00000000fffb000 0000000001080000 c00000027e002040 GPR16: c00000027fee9298 c000000000d4d060 0000000000001680 0000000000000001 GPR20: c000000000d2fc90 0000000000000000 0000000000000000 0000000000210d00 GPR24: 0000000000000000 f000000008b901c0 c00000027e008000 c00000027e008000 GPR28: c00000027e008000 c00000027e008000 c000000000ca32e0 c00000027e000000 NIP [c0000000001ba73c] .setup_object+0x7c/0xa0 LR [c0000000001ba9a4] .new_slab+0x244/0x3e0 Call Trace: [c000000000d2fae0] [c000000000d2fb60] init_thread_union+0x3b60/0x4000 (unreliable) [c000000000d2fb70] [c0000000001ba9a4] .new_slab+0x244/0x3e0 [c000000000d2fc20] [c0000000001bb794] .__slab_alloc+0x364/0x5a0 [c000000000d2fd70] [c0000000001bc8b8] .kmem_cache_alloc+0xb8/0x1f0 [c000000000d2fe20] [c000000000bd030c] .kmem_cache_init+0x128/0x378 [c000000000d2fef0] [c000000000b9d974] .start_kernel+0x1e0/0x48c [c000000000d2ff90] [c0000000000096f8] .start_here_common+0x20/0x28 Instruction dump: eba1ffe8 ebc1fff0 ebe1fff8 7c0803a6 4e800020 7ca42b78 38a000bb 4bffe5a9 7fe3fb78 7fa4eb78 4bffff0d 4bffffc0 <e8090000> f8410028 7fa3eb78 7c0903a6 The data address above is "loc-4096" ... -- Cheers, Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
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