Hello, in the recent kernels I sometimes got the following allocation failure. It is provoked by ifconfig wlan0 up. I have machine with 2GB RAM and 1.5GB of swap (99% free). It happens if I start netbeans (which takes fair amount of memory) and keep running netbeans whole night (so that updatedb and slocate are woken up). My question is why this happens? According to Jiri Slaby, this should not happen. I'm also attaching vmstat and slabinfo. [14478990.059888] ifconfig: page allocation failure. order:4, mode:0x40d0 [14478990.059904] Pid: 27071, comm: ifconfig Not tainted 2.6.26-rc2-git5 #9 [14478990.059909] [14478990.059910] Call Trace: [14478990.059932] [<ffffffff80275a3d>] __alloc_pages_internal+0x3dd/0x4f0 [14478990.059945] [<ffffffff80275bec>] __get_free_pages+0x1c/0x60 [14478990.059968] [<ffffffffa00f51fa>] :iwl4965:iwl4965_tx_queue_init+0x9a/0x1d0 [14478990.059992] [<ffffffffa00fd873>] :iwl4965:iwl4965_hw_nic_init+0x3f3/0x1cb0 [14478990.059999] [<ffffffff8026a32e>] setup_irq+0x14e/0x290 [14478990.060018] [<ffffffffa00e6ac4>] :iwl4965:__iwl4965_up+0xb4/0x590 [14478990.060035] [<ffffffffa00e75c8>] :iwl4965:iwl4965_mac_start+0x5c8/0xfc0 [14478990.060043] [<ffffffff802a451f>] __link_path_walk+0x53f/0x1040 [14478990.060069] [<ffffffffa00b8dbc>] :mac80211:ieee80211_open+0x13c/0x5c0 [14478990.060075] [<ffffffff802a50dc>] path_walk+0xbc/0xd0 [14478990.060086] [<ffffffff804739f9>] dev_open+0x89/0xf0 [14478990.060093] [<ffffffff80473292>] dev_change_flags+0x92/0x1b0 [14478990.060102] [<ffffffff804b9bb4>] devinet_ioctl+0x7a4/0x7b0 [14478990.060108] [<ffffffff802a6816>] do_filp_open+0xb6/0x990 [14478990.060121] [<ffffffff80464496>] sock_ioctl+0x66/0x280 [14478990.060127] [<ffffffff802a7f7f>] vfs_ioctl+0x2f/0xb0 [14478990.060133] [<ffffffff802a8283>] do_vfs_ioctl+0x283/0x2f0 [14478990.060140] [<ffffffff802a8339>] sys_ioctl+0x49/0x80 [14478990.060146] [<ffffffff80297e99>] do_sys_open+0xe9/0x110 [14478990.060155] [<ffffffff8020c32b>] system_call_after_swapgs+0x7b/0x80 [14478990.060163] [14478990.060166] Mem-info: [14478990.060169] DMA per-cpu: [14478990.060174] CPU 0: hi: 0, btch: 1 usd: 0 [14478990.060178] CPU 1: hi: 0, btch: 1 usd: 0 [14478990.060182] DMA32 per-cpu: [14478990.060186] CPU 0: hi: 186, btch: 31 usd: 0 [14478990.060190] CPU 1: hi: 186, btch: 31 usd: 0 [14478990.060197] Active:353461 inactive:90156 dirty:3 writeback:0 unstable:0 [14478990.060199] free:10504 slab:16638 mapped:24858 pagetables:3705 bounce:0 [14478990.060207] DMA free:7916kB min:28kB low:32kB high:40kB active:2536kB inactive:0kB present:10032kB pages_scanned:0 all_unreclaimable? no [14478990.060212] lowmem_reserve[]: 0 1963 1963 1963 [14478990.060223] DMA32 free:34100kB min:5652kB low:7064kB high:8476kB active:1411308kB inactive:360624kB present:2010596kB pages_scanned:0 all_unreclaimable? no [14478990.060229] lowmem_reserve[]: 0 0 0 0 [14478990.060237] DMA: 35*4kB 16*8kB 24*16kB 19*32kB 16*64kB 12*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 1*4096kB = 7916kB [14478990.060256] DMA32: 4660*4kB 1361*8kB 231*16kB 15*32kB 1*64kB 1*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 34152kB [14478990.060274] 174269 total pagecache pages [14478990.060279] Swap cache: add 135, delete 86, find 31/36 [14478990.060283] Free swap = 1534328kB [14478990.060286] Total swap = 1534672kB [14478990.076000] 513712 pages of RAM [14478990.076008] 9367 reserved pages [14478990.076012] 161337 pages shared [14478990.076015] 49 pages swap cached [14478990.076019] iwl4965: kmalloc for auxiliary BD structures failed [14478990.076030] iwl4965: Tx 6 queue init failed [14478990.076061] iwl4965: Unable to init nic -- Lukáš Hejtmánek
nr_free_pages 10562 nr_inactive 90191 nr_active 353444 nr_anon_pages 269349 nr_mapped 24853 nr_file_pages 174310 nr_dirty 34 nr_writeback 0 nr_slab_reclaimable 13345 nr_slab_unreclaimable 3293 nr_page_table_pages 3709 nr_unstable 0 nr_bounce 0 nr_vmscan_write 145 nr_writeback_temp 0 pgpgin 4465231 pgpgout 1690084 pswpin 19 pswpout 43 pgalloc_dma 336993 pgalloc_dma32 56207889 pgalloc_normal 0 pgalloc_movable 0 pgfree 56555683 pgactivate 1767842 pgdeactivate 232049 pgfault 51147492 pgmajfault 4074 pgrefill_dma 13774 pgrefill_dma32 1230295 pgrefill_normal 0 pgrefill_movable 0 pgsteal_dma 11129 pgsteal_dma32 922798 pgsteal_normal 0 pgsteal_movable 0 pgscan_kswapd_dma 0 pgscan_kswapd_dma32 0 pgscan_kswapd_normal 0 pgscan_kswapd_movable 0 pgscan_direct_dma 11605 pgscan_direct_dma32 956420 pgscan_direct_normal 0 pgscan_direct_movable 0 pginodesteal 112417 slabs_scanned 165120 kswapd_steal 0 kswapd_inodesteal 0 pageoutrun 4235909 allocstall 14350 pgrotated 76
slabinfo - version: 2.1 # name <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables <limit> <batchcount> <sharedfactor> : slabdata <active_slabs> <num_slabs> <sharedavail> fat_inode_cache 13 13 624 13 2 : tunables 0 0 0 : slabdata 1 1 0 fat_cache 204 204 40 102 1 : tunables 0 0 0 : slabdata 2 2 0 fuse_request 0 0 608 13 2 : tunables 0 0 0 : slabdata 0 0 0 fuse_inode 0 0 704 23 4 : tunables 0 0 0 : slabdata 0 0 0 kmalloc_dma-512 0 16 512 16 2 : tunables 0 0 0 : slabdata 1 1 0 cfq_queue 105 120 136 30 1 : tunables 0 0 0 : slabdata 4 4 0 bsg_cmd 0 0 312 13 1 : tunables 0 0 0 : slabdata 0 0 0 mqueue_inode_cache 1 19 832 19 4 : tunables 0 0 0 : slabdata 1 1 0 ext2_inode_cache 0 0 736 22 4 : tunables 0 0 0 : slabdata 0 0 0 journal_handle 340 340 24 170 1 : tunables 0 0 0 : slabdata 2 2 0 journal_head 126 126 96 42 1 : tunables 0 0 0 : slabdata 3 3 0 revoke_table 258 512 16 256 1 : tunables 0 0 0 : slabdata 2 2 0 revoke_record 256 256 32 128 1 : tunables 0 0 0 : slabdata 2 2 0 ext3_inode_cache 45184 45298 744 22 4 : tunables 0 0 0 : slabdata 2059 2059 0 ext3_xattr 0 0 88 46 1 : tunables 0 0 0 : slabdata 0 0 0 inotify_event_cache 204 204 40 102 1 : tunables 0 0 0 : slabdata 2 2 0 shmem_inode_cache 3021 3058 736 22 4 : tunables 0 0 0 : slabdata 139 139 0 pid_namespace 0 0 2104 15 8 : tunables 0 0 0 : slabdata 0 0 0 nsproxy 73 146 56 73 1 : tunables 0 0 0 : slabdata 2 2 0 xfrm_dst_cache 0 0 384 21 2 : tunables 0 0 0 : slabdata 0 0 0 ip_dst_cache 26 36 320 12 1 : tunables 0 0 0 : slabdata 3 3 0 UDP 42 42 768 21 4 : tunables 0 0 0 : slabdata 2 2 0 TCP 67 76 1664 19 8 : tunables 0 0 0 : slabdata 4 4 0 scsi_bidi_sdb 171 340 24 170 1 : tunables 0 0 0 : slabdata 2 2 0 scsi_io_context 0 0 112 36 1 : tunables 0 0 0 : slabdata 0 0 0 blkdev_queue 19 36 1792 18 8 : tunables 0 0 0 : slabdata 2 2 0 blkdev_requests 30 39 304 13 1 : tunables 0 0 0 : slabdata 3 3 0 sock_inode_cache 323 336 640 12 2 : tunables 0 0 0 : slabdata 28 28 0 skbuff_fclone_cache 36 36 448 18 2 : tunables 0 0 0 : slabdata 2 2 0 file_lock_cache 42 42 192 21 1 : tunables 0 0 0 : slabdata 2 2 0 Acpi-ParseExt 3413 3472 72 56 1 : tunables 0 0 0 : slabdata 62 62 0 Acpi-Parse 170 170 48 85 1 : tunables 0 0 0 : slabdata 2 2 0 proc_inode_cache 556 574 576 14 2 : tunables 0 0 0 : slabdata 41 41 0 sigqueue 50 50 160 25 1 : tunables 0 0 0 : slabdata 2 2 0 radix_tree_node 18235 18347 560 14 2 : tunables 0 0 0 : slabdata 1311 1311 0 bdev_cache 42 42 768 21 4 : tunables 0 0 0 : slabdata 2 2 0 sysfs_dir_cache 11779 11781 80 51 1 : tunables 0 0 0 : slabdata 231 231 0 inode_cache 261 435 544 15 2 : tunables 0 0 0 : slabdata 29 29 0 dentry 5784 11153 208 19 1 : tunables 0 0 0 : slabdata 587 587 0 buffer_head 59755 60624 112 36 1 : tunables 0 0 0 : slabdata 1684 1684 0 vm_area_struct 10323 10776 168 24 1 : tunables 0 0 0 : slabdata 449 449 0 files_cache 387 414 704 23 4 : tunables 0 0 0 : slabdata 18 18 0 signal_cache 236 266 832 19 4 : tunables 0 0 0 : slabdata 14 14 0 sighand_cache 153 180 2112 15 8 : tunables 0 0 0 : slabdata 12 12 0 task_struct 257 299 1424 23 8 : tunables 0 0 0 : slabdata 13 13 0 anon_vma 3302 3584 32 128 1 : tunables 0 0 0 : slabdata 28 28 0 idr_layer_cache 401 405 536 15 2 : tunables 0 0 0 : slabdata 27 27 0 kmalloc-4096 54 64 4096 8 8 : tunables 0 0 0 : slabdata 8 8 0 kmalloc-2048 373 432 2048 16 8 : tunables 0 0 0 : slabdata 27 27 0 kmalloc-1024 1019 1040 1024 16 4 : tunables 0 0 0 : slabdata 65 65 0 kmalloc-512 418 448 512 16 2 : tunables 0 0 0 : slabdata 28 28 0 kmalloc-256 599 608 256 16 1 : tunables 0 0 0 : slabdata 38 38 0 kmalloc-128 606 960 128 32 1 : tunables 0 0 0 : slabdata 30 30 0 kmalloc-64 28435 32320 64 64 1 : tunables 0 0 0 : slabdata 505 505 0 kmalloc-32 2619 2688 32 128 1 : tunables 0 0 0 : slabdata 21 21 0 kmalloc-16 2889 3584 16 256 1 : tunables 0 0 0 : slabdata 14 14 0 kmalloc-8 5020 5120 8 512 1 : tunables 0 0 0 : slabdata 10 10 0 kmalloc-192 5108 5292 192 21 1 : tunables 0 0 0 : slabdata 252 252 0 kmalloc-96 1188 1302 96 42 1 : tunables 0 0 0 : slabdata 31 31 0
