Hi Holger, On Jan 29, 2015, at 2:08 AM, Holger Hoffstätte <holger.hoffstae...@googlemail.com> wrote:
> [This mail was also posted to gmane.comp.file-systems.btrfs.] > > On Thu, 29 Jan 2015 01:44:02 +0000, Steven Schlansker wrote: > > [..snip..] > >> The symptoms are an endlessly increasing stream of hung tasks and high > > Please try 3.18.5 (-rc1 is good) which contains the following fix: > > "workqueue: fix subtle pool management issue which can stall whole > worker_pool" > > see: http://article.gmane.org/gmane.linux.kernel.stable/122074 > > No promises but it seems sufficiently causally related.. Thank you for the suggestion. I did not find a 3.18.5 presented in any form other than as a large number of *.patch files, so I went for 3.19-rc6 instead (which I verified has this commit) Now I am getting: [ 1224.728313] ------------[ cut here ]------------ [ 1224.728323] kernel BUG at fs/btrfs/extent-tree.c:7362! [ 1224.728327] invalid opcode: 0000 [#1] SMP [ 1224.728331] Modules linked in: dm_multipath(E) scsi_dh(E) x86_pkg_temp_thermal(E) coretemp(E) crct10dif_pclmul(E) crc32_pclmul(E) ghash_clmulni_intel(E) aesni_intel(E) aes_x86_64(E) lrw(E) gf128mul(E) glue_helper(E) ablk_helper(E) cryptd(E) btrfs(E) [ 1224.728347] CPU: 3 PID: 18072 Comm: gunicorn Tainted: G E 3.19.0-rc6 #2 [ 1224.728351] task: ffff8803eafeb1c0 ti: ffff8803e8380000 task.ti: ffff8803e8380000 [ 1224.728354] RIP: e030:[<ffffffffa00210d3>] [<ffffffffa00210d3>] btrfs_alloc_tree_block+0x3c3/0x3d0 [btrfs] [ 1224.728372] RSP: e02b:ffff8803e83838b8 EFLAGS: 00010202 [ 1224.728375] RAX: fffffffffffffff4 RBX: fffffffffffffff4 RCX: 00000000000032ca [ 1224.728377] RDX: 00000000000032c9 RSI: ffff8802660c6b90 RDI: ffff8807543ace00 [ 1224.728380] RBP: ffff8803e8383958 R08: 000000000001e560 R09: ffff88075a2de560 [ 1224.728383] R10: ffffffffa004fe02 R11: ffffea0009983180 R12: ffff88073dfaf8f0 [ 1224.728386] R13: ffff8807557fe170 R14: 0000000000000000 R15: ffff8800fe05d000 [ 1224.728393] FS: 00007fc8e0fc7740(0000) GS:ffff88075a2c0000(0000) knlGS:0000000000000000 [ 1224.728396] CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b [ 1224.728399] CR2: 00007fc8e0fcd000 CR3: 00000003e8695000 CR4: 0000000000002660 [ 1224.728402] Stack: [ 1224.728404] 0000000000000000 0000000000000000 ffff8803e83838d8 ffffffffa002b5be [ 1224.728409] ffff8803e83839a7 0000000000000061 ffff8807557fe000 0000000000000000 [ 1224.728413] 00000000000001d3 0000400000000000 ffff8802660c6a68 00ffffffa005782c [ 1224.728417] Call Trace: [ 1224.728430] [<ffffffffa002b5be>] ? btree_set_page_dirty+0xe/0x10 [btrfs] [ 1224.728442] [<ffffffffa000b46c>] __btrfs_cow_block+0x11c/0x530 [btrfs] [ 1224.728454] [<ffffffffa000ba3c>] btrfs_cow_block+0x12c/0x1d0 [btrfs] [ 1224.728465] [<ffffffffa000f673>] btrfs_search_slot+0x1f3/0xa40 [btrfs] [ 1224.728472] [<ffffffff81003610>] ? xen_write_msr_safe+0x40/0x70 [ 1224.728477] [<ffffffff8101260f>] ? __switch_to+0x15f/0x580 [ 1224.728482] [<ffffffff811fa186>] ? inode_init_always+0x106/0x1e0 [ 1224.728490] [<ffffffffa0011700>] btrfs_insert_empty_items+0x70/0xc0 [btrfs] [ 1224.728494] [<ffffffff811fc5a2>] ? insert_inode_locked4+0xe2/0x190 [ 1224.728506] [<ffffffffa00413ff>] btrfs_new_inode+0x1bf/0x540 [btrfs] [ 1224.728517] [<ffffffffa0042bcf>] btrfs_create+0xdf/0x210 [btrfs] [ 1224.728521] [<ffffffff811ebf75>] vfs_create+0xd5/0x140 [ 1224.728524] [<ffffffff811efaa3>] do_last+0x1013/0x1210 [ 1224.728528] [<ffffffff811ecff1>] ? path_init+0xc1/0x470 [ 1224.728532] [<ffffffff811efd24>] path_openat+0x84/0x630 [ 1224.728536] [<ffffffff811e29f5>] ? __sb_end_write+0x35/0x70 [ 1224.728540] [<ffffffff811f146a>] do_filp_open+0x3a/0x90 [ 1224.728544] [<ffffffff811fe007>] ? __alloc_fd+0xa7/0x130 [ 1224.728548] [<ffffffff811df548>] do_sys_open+0x128/0x220 [ 1224.728552] [<ffffffff811df65e>] SyS_open+0x1e/0x20 [ 1224.728557] [<ffffffff819521ed>] system_call_fastpath+0x16/0x1b [ 1224.728560] Code: 3d 00 f0 ff ff 0f 87 b8 fd ff ff 44 8b 6d ac 4d 01 af d0 03 00 00 48 83 c4 78 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 0f 0b 0f 0b <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 [ 1224.728597] RIP [<ffffffffa00210d3>] btrfs_alloc_tree_block+0x3c3/0x3d0 [btrfs] [ 1224.728610] RSP <ffff8803e83838b8> -- 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
