Noticed that this test is failing at the moment up to v3.8.0-rc1, http://ltp.git.sourceforge.net/git/gitweb.cgi?p=ltp/ltp.git;a=blob;f=testcases/kernel/mem/mtest06/mmap1.c mmap1 0 TINFO : created writing thread[70366791266816] mmap1 0 TINFO : [70366791266816] - map, change contents, unmap files 1000 times mmap1 0 TINFO : [70366799655424] - read contents of memory 0x3fff8b180000 1000 times mmap1 0 TINFO : created reading thread[70366799655424] mmap1 0 TINFO : [70366799655424] Unexpected page fault at 0x3fff8b1803a8 Bisecting going back to v2.6.38 has no such problem and keep running despite sometimes it triggered memory allocation failures. swapper: page allocation failure. order:0, mode:0x0 Call Trace: [c00000013feab370] [c0000000000143f4] .show_stack+0x74/0x1c0 (unreliable) [c00000013feab420] [c0000000001474d0] .__alloc_pages_nodemask+0x4f0/0x8e0 [c00000013feab5c0] [c000000000031870] .iommu_alloc_coherent+0x100/0x280 [c00000013feab680] [c000000000031020] .dma_iommu_alloc_coherent+0x30/0x50 [c00000013feab6f0] [d000000001712220] .ibmvscsi_queuecommand+0x5b0/0x600 [ibmvscsic] [c00000013feab7d0] [c0000000003aa0d0] .scsi_dispatch_cmd+0x120/0x380 [c00000013feab870] [c0000000003b2a8c] .scsi_request_fn+0x4fc/0x620 [c00000013feab950] [c0000000002a13ac] .__blk_run_queue+0x15c/0x1c0 [c00000013feab9e0] [c0000000002a1514] .blk_run_queue+0x34/0x60 [c00000013feaba70] [c0000000003b1894] .scsi_run_queue+0x114/0x450 [c00000013feabb50] [c0000000003b2de8] .scsi_next_command+0x48/0x70 [c00000013feabbe0] [c0000000003b3e60] .scsi_io_completion+0x3e0/0x580 [c00000013feabcc0] [c0000000003a9d98] .scsi_finish_command+0x128/0x180 [c00000013feabd60] [c0000000003b4118] .scsi_softirq_done+0x108/0x1d0 [c00000013feabe00] [c0000000002a795c] .blk_done_softirq+0xbc/0xf0 [c00000013feabea0] [c000000000092e90] .__do_softirq+0x110/0x290 [c00000013feabf90] [c000000000020eb8] .call_do_softirq+0x14/0x24 [c00000013e963960] [c00000000000f2b4] .do_softirq+0xf4/0x120 [c00000013e963a00] [c000000000092ca4] .irq_exit+0xb4/0xc0 [c00000013e963a80] [c00000000000f540] .do_IRQ+0x160/0x2c0 [c00000013e963b40] [c000000000004898] hardware_interrupt_entry+0x18/0x80 --- Exception: 501 at .arch_local_irq_restore+0x34/0x60 LR = .cpu_idle+0x170/0x210 [c00000013e963e30] [c000000000016c14] .cpu_idle+0x164/0x210 (unreliable) [c00000013e963ee0] [c00000000059e454] .start_secondary+0x324/0x35c [c00000013e963f90] [c000000000008268] .start_secondary_prolog+0x10/0x14 Mem-Info: Node 0 DMA per-cpu: CPU 0: hi: 6, btch: 1 usd: 5 CPU 1: hi: 6, btch: 1 usd: 1 CPU 2: hi: 6, btch: 1 usd: 5 CPU 3: hi: 6, btch: 1 usd: 5 CPU 4: hi: 6, btch: 1 usd: 3 CPU 5: hi: 6, btch: 1 usd: 1 CPU 6: hi: 6, btch: 1 usd: 5 CPU 7: hi: 6, btch: 1 usd: 4 CPU 8: hi: 6, btch: 1 usd: 1 CPU 9: hi: 6, btch: 1 usd: 5 CPU 10: hi: 6, btch: 1 usd: 5 CPU 11: hi: 6, btch: 1 usd: 5 CPU 12: hi: 6, btch: 1 usd: 4 CPU 13: hi: 6, btch: 1 usd: 1 CPU 14: hi: 6, btch: 1 usd: 5 CPU 15: hi: 6, btch: 1 usd: 3 CPU 16: hi: 6, btch: 1 usd: 5 CPU 17: hi: 6, btch: 1 usd: 1 CPU 18: hi: 6, btch: 1 usd: 5 CPU 19: hi: 6, btch: 1 usd: 2 CPU 20: hi: 6, btch: 1 usd: 4 CPU 21: hi: 6, btch: 1 usd: 1 CPU 22: hi: 6, btch: 1 usd: 5 CPU 23: hi: 6, btch: 1 usd: 1 CPU 24: hi: 6, btch: 1 usd: 5 CPU 25: hi: 6, btch: 1 usd: 1 CPU 26: hi: 6, btch: 1 usd: 5 CPU 27: hi: 6, btch: 1 usd: 5 CPU 28: hi: 6, btch: 1 usd: 5 CPU 29: hi: 6, btch: 1 usd: 1 CPU 30: hi: 6, btch: 1 usd: 1 CPU 31: hi: 6, btch: 1 usd: 1 CPU 32: hi: 6, btch: 1 usd: 5 CPU 33: hi: 6, btch: 1 usd: 5 CPU 34: hi: 6, btch: 1 usd: 1 CPU 35: hi: 6, btch: 1 usd: 1 CPU 36: hi: 6, btch: 1 usd: 5 CPU 37: hi: 6, btch: 1 usd: 5 CPU 38: hi: 6, btch: 1 usd: 4 CPU 39: hi: 6, btch: 1 usd: 2 CPU 40: hi: 6, btch: 1 usd: 4 CPU 41: hi: 6, btch: 1 usd: 5 CPU 42: hi: 6, btch: 1 usd: 5 CPU 43: hi: 6, btch: 1 usd: 2 CPU 44: hi: 6, btch: 1 usd: 5 CPU 45: hi: 6, btch: 1 usd: 5 CPU 46: hi: 6, btch: 1 usd: 5 CPU 47: hi: 6, btch: 1 usd: 5 CPU 48: hi: 6, btch: 1 usd: 1 CPU 49: hi: 6, btch: 1 usd: 1 CPU 50: hi: 6, btch: 1 usd: 3 CPU 51: hi: 6, btch: 1 usd: 5 CPU 52: hi: 6, btch: 1 usd: 5 CPU 53: hi: 6, btch: 1 usd: 2 CPU 54: hi: 6, btch: 1 usd: 5 CPU 55: hi: 6, btch: 1 usd: 5 CPU 56: hi: 6, btch: 1 usd: 1 CPU 57: hi: 6, btch: 1 usd: 1 CPU 58: hi: 6, btch: 1 usd: 5 CPU 59: hi: 6, btch: 1 usd: 4 Node 1 DMA per-cpu: CPU 0: hi: 6, btch: 1 usd: 5 CPU 1: hi: 6, btch: 1 usd: 5 CPU 2: hi: 6, btch: 1 usd: 5 CPU 3: hi: 6, btch: 1 usd: 4 CPU 4: hi: 6, btch: 1 usd: 5 CPU 5: hi: 6, btch: 1 usd: 3 CPU 6: hi: 6, btch: 1 usd: 5 CPU 7: hi: 6, btch: 1 usd: 5 CPU 8: hi: 6, btch: 1 usd: 5 CPU 9: hi: 6, btch: 1 usd: 2 CPU 10: hi: 6, btch: 1 usd: 5 CPU 11: hi: 6, btch: 1 usd: 3 CPU 12: hi: 6, btch: 1 usd: 5 CPU 13: hi: 6, btch: 1 usd: 2 CPU 14: hi: 6, btch: 1 usd: 5 CPU 15: hi: 6, btch: 1 usd: 4 CPU 16: hi: 6, btch: 1 usd: 5 CPU 17: hi: 6, btch: 1 usd: 5 CPU 18: hi: 6, btch: 1 usd: 5 CPU 19: hi: 6, btch: 1 usd: 5 CPU 20: hi: 6, btch: 1 usd: 5 CPU 21: hi: 6, btch: 1 usd: 5 CPU 22: hi: 6, btch: 1 usd: 5 CPU 23: hi: 6, btch: 1 usd: 4 CPU 24: hi: 6, btch: 1 usd: 5 CPU 25: hi: 6, btch: 1 usd: 4 CPU 26: hi: 6, btch: 1 usd: 5 CPU 27: hi: 6, btch: 1 usd: 5 CPU 28: hi: 6, btch: 1 usd: 5 CPU 29: hi: 6, btch: 1 usd: 1 CPU 30: hi: 6, btch: 1 usd: 5 CPU 31: hi: 6, btch: 1 usd: 5 CPU 32: hi: 6, btch: 1 usd: 5 CPU 33: hi: 6, btch: 1 usd: 5 CPU 34: hi: 6, btch: 1 usd: 2 CPU 35: hi: 6, btch: 1 usd: 5 CPU 36: hi: 6, btch: 1 usd: 5 CPU 37: hi: 6, btch: 1 usd: 5 CPU 38: hi: 6, btch: 1 usd: 1 CPU 39: hi: 6, btch: 1 usd: 4 CPU 40: hi: 6, btch: 1 usd: 0 CPU 41: hi: 6, btch: 1 usd: 4 CPU 42: hi: 6, btch: 1 usd: 5 CPU 43: hi: 6, btch: 1 usd: 5 CPU 44: hi: 6, btch: 1 usd: 5 CPU 45: hi: 6, btch: 1 usd: 5 CPU 46: hi: 6, btch: 1 usd: 5 CPU 47: hi: 6, btch: 1 usd: 4 CPU 48: hi: 6, btch: 1 usd: 5 CPU 49: hi: 6, btch: 1 usd: 3 CPU 50: hi: 6, btch: 1 usd: 5 CPU 51: hi: 6, btch: 1 usd: 5 CPU 52: hi: 6, btch: 1 usd: 5 CPU 53: hi: 6, btch: 1 usd: 2 CPU 54: hi: 6, btch: 1 usd: 2 CPU 55: hi: 6, btch: 1 usd: 2 CPU 56: hi: 6, btch: 1 usd: 5 CPU 57: hi: 6, btch: 1 usd: 1 CPU 58: hi: 6, btch: 1 usd: 5 CPU 59: hi: 6, btch: 1 usd: 5 active_anon:2553 inactive_anon:3246 isolated_anon:0 active_file:34958 inactive_file:31322 isolated_file:0 unevictable:0 dirty:13086 writeback:1581 unstable:0 free:291 slab_reclaimable:2076 slab_unreclaimable:3873 mapped:186 shmem:3 pagetables:796 bounce:0 Node 0 DMA free:10176kB min:7296kB low:9088kB high:10944kB active_anon:96128kB inactive_anon:138368kB active_file:1837440kB inactive_file:1605056kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:4190720kB mlocked:0kB dirty:459840kB writeback:62848kB mapped:11840kB shmem:192kB slab_reclaimable:127360kB slab_unreclaimable:226688kB kernel_stack:9088kB pagetables:35520kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:32 all_unreclaimable? no lowmem_reserve[]: 0 0 0 Node 1 DMA free:8448kB min:1792kB low:2240kB high:2688kB active_anon:67264kB inactive_anon:69376kB active_file:399872kB inactive_file:399552kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:1047680kB mlocked:0kB dirty:377664kB writeback:38336kB mapped:64kB shmem:0kB slab_reclaimable:5504kB slab_unreclaimable:21184kB kernel_stack:480kB pagetables:15424kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no lowmem_reserve[]: 0 0 0 Node 0 DMA: 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB 0*8192kB 0*16384kB = 0kB Node 1 DMA: 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB 0*8192kB 0*16384kB = 0kB 66497 total pagecache pages 56 pages in swap cache Swap cache stats: add 538, delete 482, find 127/141 Free swap = 5161024kB Total swap = 5177280kB 81920 pages RAM 900 pages reserved 47062 pages shared 39873 pages non-shared sd 0:0:1:0: Can't allocate memory for indirect table sd 0:0:1:0: couldn't convert cmd to srp_cmd CAI Qian -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. 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