Got this Kernel-failure today while making a btrfs-snapshot. # uname -r 4.2.0-1-amd64
Dez 16 20:33:14 aldebaran kernel: btrfs: page allocation failure: order:1, mode:0x204020 Dez 16 20:33:14 aldebaran kernel: CPU: 1 PID: 8016 Comm: btrfs Tainted: G U W 4.2.0-1-amd64 #1 Debian 4.2.6-3 Dez 16 20:33:14 aldebaran kernel: Hardware name: Hewlett-Packard HP ProBook 450 G2/2248, BIOS M74 Ver. 01.08 12/12/2014 Dez 16 20:33:14 aldebaran kernel: 0000000000000000 0000000000000001 ffffffff8154f6c3 0000000000204020 Dez 16 20:33:14 aldebaran kernel: ffffffff8115727f ffff88014f5fbb00 0000000000000000 0000000000000001 Dez 16 20:33:14 aldebaran kernel: 0000000100000000 0000000000000000 ffff88014f5fdfa8 0000000000000046 Dez 16 20:33:14 aldebaran kernel: Call Trace: Dez 16 20:33:14 aldebaran kernel: [<ffffffff8154f6c3>] ? dump_stack+0x40/0x50 Dez 16 20:33:14 aldebaran kernel: [<ffffffff8115727f>] ? warn_alloc_failed+0xcf/0x130 Dez 16 20:33:14 aldebaran kernel: [<ffffffff8115a984>] ? __alloc_pages_nodemask+0x2b4/0x9e0 Dez 16 20:33:14 aldebaran kernel: [<ffffffff811a21a1>] ? kmem_getpages+0x61/0x110 Dez 16 20:33:14 aldebaran kernel: [<ffffffff811a3e53>] ? fallback_alloc+0x143/0x1f0 Dez 16 20:33:14 aldebaran kernel: [<ffffffff811a599b>] ? kmem_cache_alloc+0x1eb/0x430 Dez 16 20:33:14 aldebaran kernel: [<ffffffff812c63bc>] ? ida_pre_get+0x5c/0xd0 Dez 16 20:33:14 aldebaran kernel: [<ffffffff811be90d>] ? get_anon_bdev+0x6d/0xe0 Dez 16 20:33:14 aldebaran kernel: [<ffffffffa046cfd1>] ? btrfs_init_free_ino_ctl+0x61/0xa0 [btrfs] Dez 16 20:33:14 aldebaran kernel: [<ffffffffa046fcf6>] ? btrfs_init_fs_root+0x106/0x180 [btrfs] Dez 16 20:33:14 aldebaran kernel: [<ffffffffa0471063>] ? btrfs_read_fs_root+0x33/0x40 [btrfs] Dez 16 20:33:14 aldebaran kernel: [<ffffffffa0471103>] ? btrfs_get_fs_root.part.49+0x93/0x180 [btrfs] Dez 16 20:33:14 aldebaran kernel: [<ffffffffa049a331>] ? memcmp_extent_buffer+0xc1/0x120 [btrfs] Dez 16 20:33:14 aldebaran kernel: [<ffffffffa04840e5>] ? btrfs_lookup_dentry+0x285/0x500 [btrfs] Dez 16 20:33:14 aldebaran kernel: [<ffffffffa048436e>] ? btrfs_lookup+0xe/0x30 [btrfs] Dez 16 20:33:14 aldebaran kernel: [<ffffffff811c5899>] ? lookup_real+0x19/0x60 Dez 16 20:33:14 aldebaran kernel: [<ffffffff811ca6a8>] ? path_openat+0xa98/0x14c0 Dez 16 20:33:14 aldebaran kernel: [<ffffffff8117d50e>] ? do_set_pte+0x9e/0xd0 Dez 16 20:33:14 aldebaran kernel: [<ffffffff8115230e>] ? filemap_map_pages+0x21e/0x230 Dez 16 20:33:14 aldebaran kernel: [<ffffffff811cc125>] ? do_filp_open+0x75/0xd0 Dez 16 20:33:14 aldebaran kernel: [<ffffffff811d8c3f>] ? __alloc_fd+0x3f/0x110 Dez 16 20:33:14 aldebaran kernel: [<ffffffff811bbaca>] ? do_sys_open+0x12a/0x200 Dez 16 20:33:14 aldebaran kernel: [<ffffffff81554df2>] ? system_call_fast_compare_end+0xc/0x6b Dez 16 20:33:14 aldebaran kernel: Mem-Info: Dez 16 20:33:14 aldebaran kernel: active_anon:226184 inactive_anon:65166 isolated_anon:0 active_file:245088 inactive_file:246297 isolated_file:0 unevictable:192 dirty:1706 writeback:50 unstable:0 slab_reclaimable:32362 slab_unreclaimable:16012 mapped:96648 shmem:53953 pagetables:9075 bounce:0 free:7046 free_pcp:1265 free_cma:0 Dez 16 20:33:14 aldebaran kernel: Node 0 DMA free:13364kB min:32kB low:40kB high:48kB active_anon:252kB inactive_anon:284kB active_file:560kB inactive_file:660kB unevictable:0kB isolated(anon):0kB isolated(file) Dez 16 20:33:14 aldebaran kernel: lowmem_reserve[]: 0 2125 3337 3337 Dez 16 20:33:14 aldebaran kernel: Node 0 DMA32 free:11232kB min:4624kB low:5780kB high:6936kB active_anon:612872kB inactive_anon:162128kB active_file:616016kB inactive_file:618100kB unevictable:516kB isolated(an Dez 16 20:33:14 aldebaran kernel: lowmem_reserve[]: 0 0 1212 1212 Dez 16 20:33:14 aldebaran kernel: Node 0 Normal free:3464kB min:2636kB low:3292kB high:3952kB active_anon:291612kB inactive_anon:98252kB active_file:363776kB inactive_file:366212kB unevictable:252kB isolated(ano Dez 16 20:33:14 aldebaran kernel: lowmem_reserve[]: 0 0 0 0 Dez 16 20:33:14 aldebaran kernel: Node 0 DMA: 31*4kB (UE) 17*8kB (UM) 8*16kB (UE) 5*32kB (UEM) 2*64kB (E) 1*128kB (E) 1*256kB (M) 2*512kB (EM) 1*1024kB (E) 1*2048kB (E) 2*4096kB (UM) = 13348kB Dez 16 20:33:14 aldebaran kernel: Node 0 DMA32: 2720*4kB (UEM) 30*8kB (UEM) 7*16kB (UM) 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 11232kB Dez 16 20:33:14 aldebaran kernel: Node 0 Normal: 837*4kB (UEM) 22*8kB (UM) 0*16kB 2*32kB (M) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 3588kB Dez 16 20:33:14 aldebaran kernel: Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Dez 16 20:33:14 aldebaran kernel: 545434 total pagecache pages Dez 16 20:33:14 aldebaran kernel: 4 pages in swap cache Dez 16 20:33:14 aldebaran kernel: Swap cache stats: add 10, delete 6, find 0/0 Dez 16 20:33:14 aldebaran kernel: Free swap = 7812052kB Dez 16 20:33:14 aldebaran kernel: Total swap = 7812092kB Dez 16 20:33:14 aldebaran kernel: 892955 pages RAM Dez 16 20:33:14 aldebaran kernel: 0 pages HighMem/MovableOnly Dez 16 20:33:14 aldebaran kernel: 33747 pages reserved Dez 16 20:33:14 aldebaran kernel: 0 pages hwpoisoned Dez 16 20:33:14 aldebaran kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000022 -- http://xundeenergie.at http://verkehrsloesungen.wordpress.com/ http://cogitationum.wordpress.com/ -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html