From: Michal Hocko <mhocko@xxxxxxx> Sent: Friday, December 05, 2014 8:56 PM > To: Duan Fugang-B38611 > Cc: andi@xxxxxxxxxxxxxx; catalin.marinas@xxxxxxx; hannes@xxxxxxxxxxx; > cl@xxxxxxxxxxxxxxxxxxxx; vegardno@xxxxxxxxxx; penberg@xxxxxxxxxx; > bsingharora@xxxxxxxxx; kamezawa.hiroyu@xxxxxxxxxxxxxx; linux-mm@xxxxxxxxx; > cgroups@xxxxxxxxxxxxxxx; davem@xxxxxxxxxxxxx; eric.dumazet@xxxxxxxxx; > ezequiel.garcia@xxxxxxxxxxxxxxxxxx; David.Laight@xxxxxxxxxx > Subject: Re: [Question] page allocation failure > > On Fri 05-12-14 10:22:49, fugang.duan@xxxxxxxxxxxxx wrote: > [...] > > [Playing (List Repeated)][Vol=01][00:02:54/00:04:07]swapper/0: page > > allocation failure: order:0, mode:0x200020 > > CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.10.53-1.1.0_ga+g67f859d #1 > > [<80013b00>] (unwind_backtrace+0x0/0xf4) from [<80011524>] > > (show_stack+0x10/0x14) [<80011524>] (show_stack+0x10/0x14) from > > [<80094474>] (warn_alloc_failed+0xe0/0x118) [<80094474>] > > (warn_alloc_failed+0xe0/0x118) from [<8009723c>] > > (__alloc_pages_nodemask+0x640/0x89c) > > [<8009723c>] (__alloc_pages_nodemask+0x640/0x89c) from [<800c13e4>] > > (new_slab+0x1e4/0x218) [<800c13e4>] (new_slab+0x1e4/0x218) from > > [<8067ef38>] (__slab_alloc.isra.64.constprop.69+0x380/0x590) > > [<8067ef38>] (__slab_alloc.isra.64.constprop.69+0x380/0x590) from > > [<800c29a8>] (kmem_cache_alloc+0xdc/0x110) [<800c29a8>] > > (kmem_cache_alloc+0xdc/0x110) from [<805197d0>] (build_skb+0x28/0x98) > > [<805197d0>] (build_skb+0x28/0x98) from [<8051c0c8>] > > (__netdev_alloc_skb+0x54/0xfc) [<8051c0c8>] > > (__netdev_alloc_skb+0x54/0xfc) from [<803ab878>] > > (fec_enet_rx_napi+0x758/0xa28) [<803ab878>] > > (fec_enet_rx_napi+0x758/0xa28) from [<80527618>] > > (net_rx_action+0xbc/0x17c) [<80527618>] (net_rx_action+0xbc/0x17c) > > from [<800332ec>] (__do_softirq+0x120/0x200) [<800332ec>] > > (__do_softirq+0x120/0x200) from [<80033460>] (do_softirq+0x50/0x58) > > [<80033460>] (do_softirq+0x50/0x58) from [<800336fc>] > > (irq_exit+0x9c/0xd0) [<800336fc>] (irq_exit+0x9c/0xd0) from > > [<8000e94c>] (handle_IRQ+0x44/0x90) [<8000e94c>] > > (handle_IRQ+0x44/0x90) from [<80008558>] (gic_handle_irq+0x2c/0x5c) > > [<80008558>] (gic_handle_irq+0x2c/0x5c) from [<8000dc80>] > > (__irq_svc+0x40/0x70) Exception stack(0x80cbff20 to 0x80cbff68) > > ff20: 80cbff68 00003fee b2931c73 00000ee2 b292c14d 00000ee2 81597180 > > 80ccbd68 > > ff40: 00000000 00000000 80cbe000 80cbe000 00000017 80cbff68 8005fbd4 > > 80456db0 > > ff60: 60010013 ffffffff > > [<8000dc80>] (__irq_svc+0x40/0x70) from [<80456db0>] > > (cpuidle_enter_state+0x50/0xe0) [<80456db0>] > > (cpuidle_enter_state+0x50/0xe0) from [<80456ef0>] > > (cpuidle_idle_call+0xb0/0x148) [<80456ef0>] > > (cpuidle_idle_call+0xb0/0x148) from [<8000ec68>] > > (arch_cpu_idle+0x10/0x54) [<8000ec68>] (arch_cpu_idle+0x10/0x54) from > > [<8005f4a8>] (cpu_startup_entry+0x104/0x150) [<8005f4a8>] > > (cpu_startup_entry+0x104/0x150) from [<80c71a9c>] > > (start_kernel+0x324/0x330) > > Mem-info: > > DMA per-cpu: > > CPU 0: hi: 186, btch: 31 usd: 208 > > CPU 1: hi: 186, btch: 31 usd: 0 > > CPU 2: hi: 186, btch: 31 usd: 0 > > CPU 3: hi: 186, btch: 31 usd: 97 > > active_anon:11642 inactive_anon:331 isolated_anon:0 > > active_file:78585 inactive_file:79182 isolated_file:0 > > unevictable:0 dirty:0 writeback:0 unstable:0 > > free:35948 slab_reclaimable:1318 slab_unreclaimable:2242 > > mapped:5698 shmem:367 pagetables:477 bounce:0 > > free_cma:35784 > > DMA free:143792kB min:3336kB low:4168kB high:5004kB > > active_anon:46568kB inactive_anon:1324kB active_file:314340kB > > inactive_file:316728kB unevictable:0kB isolated(anon):0kB > > isolated(file):0kB present:1048576kB managed:697164kB mlocked:0kB > > dirty:0kB writeback:0kB mapped:22792kB shmem:1468kB > > slab_reclaimable:5272kB slab_unreclaimable:8968kB kernel_stack:1704kB > > pagetables:1908kB unstable:0kB bounce:0kB free_cma:143136kB > > writeback_tmp:0kB pages_scanned:51 all_unreclaimable? no > > lowmem_reserve[]: 0 0 0 0 > > DMA: 4452*4kB (UC) 4382*8kB (UC) 4111*16kB (UC) 786*32kB (UC) 0*64kB > > 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB 0*8192kB 0*16384kB > > 0*32768kB = 143792kB > > All your remaining memory is apparently reserved for C - CMA allocator. > I would recommend to contact CMA people and check your configuration with > them. Thanks for your response. I add Russell king in the loop. > > > 158126 total pagecache pages > > 0 pages in swap cache > > Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total > > swap = 0kB > > SLUB: Unable to allocate memory on node -1 (gfp=0x20) > > cache: kmalloc-192, object size: 192, buffer size: 192, default order: > 0, min order: 0 > > node 0: slabs: 0, objs: 0, free: 0 > > [Playing (List Repeated)][Vol=01][00:02:56/00:04:07] > > > > > > Regards, > > Andy > > -- > Michal Hocko > SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
