I recieved this error few days ago. Remounting this partition doesn't reproduce the error as it's automatically fscked. Thanks Dusan Mount options: /dev/md125 /mnt/backup reiser4 noatime,noauto,onerror=remount-ro 0 0 May 25 03:29:57 krshina3 kernel: reiser4: md125: found disk format 4.0.1. May 25 03:29:57 krshina3 kernel: mount: page allocation failure: order:4, mode:0x26040c0 May 25 03:29:57 krshina3 kernel: CPU: 2 PID: 7876 Comm: mount Not tainted 4.5.3-gentoo #4 May 25 03:29:57 krshina3 kernel: Hardware name: Gigabyte Technology Co., Ltd. To be filled by O.E.M./B75-D3V, BIOS F5 07/04/2012 May 25 03:29:57 krshina3 kernel: 0000000000000006 ffffffff81219767 0000000000000001 ffff8801bfe5bb30 May 25 03:29:57 krshina3 kernel: ffffffff810d2ded ffffffff8192ed30 ffff88022e315168 026240c000000010 May 25 03:29:57 krshina3 kernel: 0000000000000000 fffffffffffffff0 0000000000000001 ffffffff8192ed00 May 25 03:29:57 krshina3 kernel: Call Trace: May 25 03:29:57 krshina3 kernel: [<ffffffff81219767>] ? dump_stack+0x46/0x59 May 25 03:29:57 krshina3 kernel: [<ffffffff810d2ded>] ? warn_alloc_failed+0x113/0x12b May 25 03:29:57 krshina3 kernel: [<ffffffff810d5222>] ? __alloc_pages_nodemask+0x748/0x77e May 25 03:29:57 krshina3 kernel: [<ffffffff81095a1a>] ? console_unlock+0x371/0x3ac May 25 03:29:57 krshina3 kernel: [<ffffffff81101401>] ? cache_alloc_refill+0x27f/0x4c9 May 25 03:29:57 krshina3 kernel: [<ffffffff81168cb6>] ? reiser4_mount+0xc/0xc May 25 03:29:57 krshina3 kernel: [<ffffffff81101142>] ? kmem_cache_alloc+0x69/0xa9 May 25 03:29:57 krshina3 kernel: [<ffffffff8115605f>] ? znodes_tree_init+0x4d/0xe7 May 25 03:29:57 krshina3 kernel: [<ffffffff8115c458>] ? reiser4_init_tree+0x3f/0xb2 May 25 03:29:57 krshina3 kernel: [<ffffffff8118afe5>] ? init_format_format40+0x37b/0x501 May 25 03:29:57 krshina3 kernel: [<ffffffff81168d98>] ? fill_super+0xe2/0x1f7 May 25 03:29:57 krshina3 kernel: [<ffffffff81107d8e>] ? mount_bdev+0x131/0x181 May 25 03:29:57 krshina3 kernel: [<ffffffff81107f59>] ? mount_fs+0xc/0x80 May 25 03:29:57 krshina3 kernel: [<ffffffff8111cb6d>] ? vfs_kern_mount+0x60/0xea May 25 03:29:57 krshina3 kernel: [<ffffffff8111e523>] ? do_mount+0x92c/0xa43 May 25 03:29:57 krshina3 kernel: [<ffffffff811067e0>] ? __fput+0x169/0x17c May 25 03:29:57 krshina3 kernel: [<ffffffff810e1aa9>] ? memdup_user+0x38/0x54 May 25 03:29:57 krshina3 kernel: [<ffffffff8111e84d>] ? SyS_mount+0x6d/0x93 May 25 03:29:57 krshina3 kernel: [<ffffffff815f4457>] ? entry_SYSCALL_64_fastpath+0x12/0x6a May 25 03:29:57 krshina3 kernel: Mem-Info: May 25 03:29:57 krshina3 kernel: active_anon:745432 inactive_anon:149913 isolated_anon:0\x0a active_file:474848 inactive_file:465968 isolated_file:0\x0a unevictable:1855 dirty:235 writeback:0 unstable:0\x0a slab_reclaimable:77405 slab_unreclaimable:8391\x0a mapped:75083 shmem:6227 pagetables:9581 bounce:0\x0a free:15583 free_pcp:0 free_cma:0 May 25 03:29:57 krshina3 kernel: DMA free:15900kB min:20kB low:24kB high:28kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:15984kB managed:15900kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes May 25 03:29:57 krshina3 kernel: lowmem_reserve[]: 0 2951 7665 7665 May 25 03:29:57 krshina3 kernel: DMA32 free:27644kB min:4308kB low:5384kB high:6460kB active_anon:1121656kB inactive_anon:284116kB active_file:711732kB inactive_file:701272kB unevictable:3152kB isolated(anon):0kB isolated(file):0kB present:3098560kB managed:3022712kB mlocked:3152kB dirty:32kB writeback:0kB mapped:117268kB shmem:7796kB slab_reclaimable:118956kB slab_unreclaimable:11168kB kernel_stack:2304kB pagetables:16272kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:12 all_unreclaimable? no May 25 03:29:57 krshina3 kernel: lowmem_reserve[]: 0 0 4714 4714 May 25 03:29:57 krshina3 kernel: Normal free:18788kB min:6884kB low:8604kB high:10324kB active_anon:1860072kB inactive_anon:315536kB active_file:1187660kB inactive_file:1162600kB unevictable:4268kB isolated(anon):0kB isolated(file):0kB present:4954112kB managed:4828044kB mlocked:4268kB dirty:908kB writeback:0kB mapped:183064kB shmem:17112kB slab_reclaimable:190664kB slab_unreclaimable:22396kB kernel_stack:4192kB pagetables:22052kB unstable:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:92 all_unreclaimable? no May 25 03:29:57 krshina3 kernel: lowmem_reserve[]: 0 0 0 0 May 25 03:29:57 krshina3 kernel: DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 0*32kB 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15900kB May 25 03:29:57 krshina3 kernel: DMA32: 313*4kB (UME) 3299*8kB (UME) 14*16kB (UM) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 27868kB May 25 03:29:57 krshina3 kernel: Normal: 206*4kB (UME) 372*8kB (UME) 942*16kB (UME) 4*32kB (U) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 19000kB May 25 03:29:57 krshina3 kernel: Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB May 25 03:29:57 krshina3 kernel: 948736 total pagecache pages May 25 03:29:57 krshina3 kernel: 166 pages in swap cache May 25 03:29:57 krshina3 kernel: Swap cache stats: add 3579, delete 3413, find 0/1 May 25 03:29:57 krshina3 kernel: Free swap = 580020kB May 25 03:29:57 krshina3 kernel: Total swap = 594300kB May 25 03:29:57 krshina3 kernel: 2017164 pages RAM May 25 03:29:57 krshina3 kernel: 0 pages HighMem/MovableOnly May 25 03:29:57 krshina3 kernel: 50500 pages reserved -- To unsubscribe from this list: send the line "unsubscribe reiserfs-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html