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Message-Id: <20130118085818.147220.FMU5901@air.gr8dns.org> Date: Fri, 18 Jan 2013 08:58:18 -0800 (PST) From: Dirk Hohndel <dirk@...ndel.org> To: netdev@...r.kernel.org Cc: David Woodhouse <dwmw2@...radead.org> Subject: surprising memory request Running openconnect on a very recent 3.8 (a few commits before Linus cut RC4) I get this allocation failure. I'm unclear why we would need 128 contiguous pages here... /D [66015.673818] openconnect: page allocation failure: order:7, mode:0x10c0d0 [66015.673827] Pid: 3292, comm: openconnect Tainted: G W 3.8.0-rc3-00352-gdfdebc2 #94 [66015.673830] Call Trace: [66015.673841] [<ffffffff810e9c29>] warn_alloc_failed+0xe9/0x140 [66015.673849] [<ffffffff81093967>] ? on_each_cpu_mask+0x87/0xa0 [66015.673854] [<ffffffff810ec349>] __alloc_pages_nodemask+0x579/0x720 [66015.673859] [<ffffffff810ec507>] __get_free_pages+0x17/0x50 [66015.673866] [<ffffffff81123979>] kmalloc_order_trace+0x39/0xf0 [66015.673874] [<ffffffff81666178>] ? __hw_addr_add_ex+0x78/0xc0 [66015.673879] [<ffffffff811260d8>] __kmalloc+0xc8/0x180 [66015.673883] [<ffffffff81666616>] ? dev_addr_init+0x66/0x90 [66015.673889] [<ffffffff81660985>] alloc_netdev_mqs+0x145/0x300 [66015.673896] [<ffffffff81513830>] ? tun_net_fix_features+0x20/0x20 [66015.673902] [<ffffffff815168aa>] __tun_chr_ioctl+0xd0a/0xec0 [66015.673908] [<ffffffff81516a93>] tun_chr_ioctl+0x13/0x20 [66015.673913] [<ffffffff8113b197>] do_vfs_ioctl+0x97/0x530 [66015.673917] [<ffffffff811256f3>] ? kmem_cache_free+0x33/0x170 [66015.673923] [<ffffffff81134896>] ? final_putname+0x26/0x50 [66015.673927] [<ffffffff8113b6c1>] sys_ioctl+0x91/0xb0 [66015.673935] [<ffffffff8180e3d2>] system_call_fastpath+0x16/0x1b [66015.673938] Mem-Info: [66015.673940] DMA per-cpu: [66015.673943] CPU 0: hi: 0, btch: 1 usd: 0 [66015.673945] CPU 1: hi: 0, btch: 1 usd: 0 [66015.673947] CPU 2: hi: 0, btch: 1 usd: 0 [66015.673949] CPU 3: hi: 0, btch: 1 usd: 0 [66015.673951] DMA32 per-cpu: [66015.673953] CPU 0: hi: 186, btch: 31 usd: 0 [66015.673956] CPU 1: hi: 186, btch: 31 usd: 42 [66015.673958] CPU 2: hi: 186, btch: 31 usd: 0 [66015.673960] CPU 3: hi: 186, btch: 31 usd: 0 [66015.673962] Normal per-cpu: [66015.673964] CPU 0: hi: 186, btch: 31 usd: 0 [66015.673966] CPU 1: hi: 186, btch: 31 usd: 46 [66015.673968] CPU 2: hi: 186, btch: 31 usd: 0 [66015.673970] CPU 3: hi: 186, btch: 31 usd: 0 [66015.673976] active_anon:1241168 inactive_anon:243402 isolated_anon:0 [66015.673976] active_file:171470 inactive_file:184344 isolated_file:0 [66015.673976] unevictable:41 dirty:2 writeback:0 unstable:0 [66015.673976] free:84294 slab_reclaimable:45897 slab_unreclaimable:8765 [66015.673976] mapped:37635 shmem:185852 pagetables:18316 bounce:0 [66015.673976] free_cma:0 [66015.673987] 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:15644kB 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_cma:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? yes [66015.673989] lowmem_reserve[]: 0 2138 7924 7924 [66015.674001] DMA32 free:308944kB min:3068kB low:3832kB high:4600kB active_anon:789936kB inactive_anon:270492kB active_file:302520kB inactive_file:346788kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:2190060kB managed:2136000kB mlocked:0kB dirty:0kB writeback:0kB mapped:36180kB shmem:227796kB slab_reclaimable:111048kB slab_unreclaimable:2632kB kernel_stack:376kB pagetables:6084kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:21 all_unreclaimable? no [66015.674004] lowmem_reserve[]: 0 0 5786 5786 [66015.674014] Normal free:12332kB min:8308kB low:10384kB high:12460kB active_anon:4174736kB inactive_anon:703116kB active_file:383360kB inactive_file:390588kB unevictable:164kB isolated(anon):0kB isolated(file):0kB present:5925024kB managed:5874208kB mlocked:164kB dirty:8kB writeback:0kB mapped:114360kB shmem:515612kB slab_reclaimable:72540kB slab_unreclaimable:32428kB kernel_stack:4264kB pagetables:67180kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:46 all_unreclaimable? no [66015.674016] lowmem_reserve[]: 0 0 0 0 [66015.674021] DMA: 1*4kB (U) 1*8kB (U) 1*16kB (U) 2*32kB (U) 1*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (R) 3*4096kB (M) = 15900kB [66015.674040] DMA32: 4730*4kB (UEM) 14656*8kB (UEM) 6007*16kB (UEM) 1577*32kB (UEMR) 269*64kB (UEMR) 68*128kB (UEMR) 2*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 309176kB [66015.674057] Normal: 2772*4kB (UEM) 44*8kB (UEM) 17*16kB (UEM) 6*32kB (R) 1*64kB (R) 0*128kB 1*256kB (R) 1*512kB (R) 0*1024kB 0*2048kB 0*4096kB = 12736kB [66015.674074] 541777 total pagecache pages [66015.674075] 142 pages in swap cache [66015.674078] Swap cache stats: add 4420, delete 4278, find 106/118 [66015.674080] Free swap = 9197216kB [66015.674082] Total swap = 9213948kB [66015.710738] 2094576 pages RAM [66015.710745] 85536 pages reserved [66015.710746] 1755663 pages shared [66015.710748] 1488520 pages non-shared [66015.710752] netdev: Unable to allocate 1024 tx queues -- Dirk Hohndel Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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