I got the following crash on one of my Ceph nodes this morning. I don't know how to reproduce it yet; I was just wondering if it was a known issue. This is with the latest kernel for Ubuntu 10.10. Nov 13 19:21:21 alpha kernel: [19432.396679] ------------[ cut here ]------------ Nov 13 19:21:22 alpha kernel: [19432.396732] WARNING: at /build/buildd/linux-2.6.35/fs/btrfs/extent-tree.c:5322 btrfs_alloc_free_block+0x1e7/0x430 [btrfs]() Nov 13 19:21:22 alpha kernel: [19432.396743] Hardware name: Nov 13 19:21:22 alpha kernel: [19432.396749] Modules linked in: nfsd exportfs nfs lockd fscache nfs_acl auth_rpcgss sunrpc snd_hda_codec_realtek i915 snd_hda_intel drm_kms_helper snd_hda_codec snd_hwdep drm ppdev snd_pcm parport_pc snd_timer intel_agp psmouse i2c_algo_bit serio_raw led_class lp snd video soundcore agpgart output snd_page_alloc parport btrfs r8169 floppy mii zlib_deflate crc32c libcrc32c Nov 13 19:21:22 alpha kernel: [19432.396839] Pid: 1007, comm: cosd Not tainted 2.6.35-22-generic-pae #35-Ubuntu Nov 13 19:21:22 alpha kernel: [19432.396848] Call Trace: Nov 13 19:21:22 alpha kernel: [19432.396874] [<c01527b2>] warn_slowpath_common+0x72/0xa0 Nov 13 19:21:22 alpha kernel: [19432.396920] [<f85515c7>] ? btrfs_alloc_free_block+0x1e7/0x430 [btrfs] Nov 13 19:21:22 alpha kernel: [19432.396965] [<f85515c7>] ? btrfs_alloc_free_block+0x1e7/0x430 [btrfs] Nov 13 19:21:22 alpha kernel: [19432.396981] [<c0152802>] warn_slowpath_null+0x22/0x30 Nov 13 19:21:22 alpha kernel: [19432.397025] [<f85515c7>] btrfs_alloc_free_block+0x1e7/0x430 [btrfs] Nov 13 19:21:22 alpha kernel: [19432.397041] [<c013a864>] ? kmap_atomic+0x24/0x30 Nov 13 19:21:22 alpha kernel: [19432.397054] [<c013a77c>] ? kmap_atomic_prot+0x4c/0x110 Nov 13 19:21:22 alpha kernel: [19432.397064] [<c013a814>] ? kmap_atomic_prot+0xe4/0x110 Nov 13 19:21:22 alpha kernel: [19432.397106] [<f853d46d>] __btrfs_cow_block+0x14d/0x5e0 [btrfs] Nov 13 19:21:22 alpha kernel: [19432.397120] [<c013a655>] ? kunmap_atomic+0x55/0x70 Nov 13 19:21:22 alpha kernel: [19432.397163] [<f853d9db>] btrfs_cow_block+0xdb/0x1c0 [btrfs] Nov 13 19:21:22 alpha kernel: [19432.397210] [<f8543221>] btrfs_search_slot+0x2a1/0x530 [btrfs] Nov 13 19:21:22 alpha kernel: [19432.397261] [<f85555db>] btrfs_lookup_inode+0x3b/0xb0 [btrfs] Nov 13 19:21:22 alpha kernel: [19432.397311] [<f8560364>] btrfs_update_inode+0x54/0x100 [btrfs] Nov 13 19:21:22 alpha kernel: [19432.397360] [<f856483d>] btrfs_truncate+0x1cd/0x230 [btrfs] Nov 13 19:21:22 alpha kernel: [19432.397376] [<c01eb4b0>] vmtruncate+0x30/0x40 Nov 13 19:21:22 alpha kernel: [19432.397423] [<f8568d36>] btrfs_setattr_size+0xc6/0x2d0 [btrfs] Nov 13 19:21:22 alpha kernel: [19432.397471] [<f8568fc7>] btrfs_setattr+0x87/0x90 [btrfs] Nov 13 19:21:22 alpha kernel: [19432.397488] [<c0238203>] notify_change+0x143/0x2f0 Nov 13 19:21:22 alpha kernel: [19432.397501] [<c022bd3b>] ? putname+0x2b/0x40 Nov 13 19:21:22 alpha kernel: [19432.397513] [<c0221a42>] do_truncate+0x62/0x90 Nov 13 19:21:22 alpha kernel: [19432.397527] [<c030dd9a>] ? security_path_truncate+0x3a/0x50 Nov 13 19:21:22 alpha kernel: [19432.397540] [<c0221d37>] do_sys_truncate+0x137/0x140 Nov 13 19:21:22 alpha kernel: [19432.397553] [<c0221d56>] sys_truncate64+0x16/0x20 Nov 13 19:21:22 alpha kernel: [19432.397566] [<c05f00f4>] syscall_call+0x7/0xb Nov 13 19:21:22 alpha kernel: [19432.397577] [<c05f0000>] ? _lock_kernel+0x20/0x8a Nov 13 19:21:22 alpha kernel: [19432.397586] ---[ end trace e8ea54bc05860e29 ]--- ...followed by... [19432.397661] ------------[ cut here ]------------ [19432.397792] kernel BUG at /build/buildd/linux-2.6.35/fs/btrfs/inode.c:6182! [19432.397977] invalid opcode: 0000 [#1] SMP [19432.398096] last sysfs file: /sys/module/nfsd/initstate [19432.398227] Modules linked in: nfsd exportfs nfs lockd fscache nfs_acl auth_rpcgss sunrpc snd_hda_codec_realtek i915 snd_hda_intel drm_kms_helper snd_hda_codec snd_hwdep drm ppdev snd_pcm parport_pc snd_timer intel_agp psmouse i2c_algo_bit serio_raw led_class lp snd video soundcore agpgart output snd_page_alloc parport btrfs r8169 floppy mii zlib_deflate crc32c libcrc32c [19432.399458] [19432.399509] Pid: 1007, comm: cosd Tainted: G W 2.6.35-22-generic-pae #35-Ubuntu LakePort/ [19432.399746] EIP: 0060:[<f8564893>] EFLAGS: 00010286 CPU: 0 [19432.399937] EIP is at btrfs_truncate+0x223/0x230 [btrfs] [19432.400018] EAX: ffffffe4 EBX: f60ac270 ECX: 00000000 EDX: 00000000 [19432.400018] ESI: f6612800 EDI: f0f40af4 EBP: f65b5eac ESP: f65b5e8c [19432.400018] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [19432.400018] Process cosd (pid: 1007, ti=f65b4000 task=f64c32c0 task.ti=f65b4000) [19432.400018] Stack: [19432.400018] 00000000 00000000 0000006c f0f409e0 00000000 f0f40af4 00000000 f60ac270 [19432.400018] <0> f65b5ebc c01eb4b0 f0f40af4 f65b5f38 f65b5ee4 f8568d36 f6d77000 00000000 [19432.400018] <0> f0f409e0 00000000 f6612800 f65b5f38 00000000 f0f40af4 f65b5ef8 f8568fc7 [19432.400018] Call Trace: [19432.400018] [<c01eb4b0>] ? vmtruncate+0x30/0x40 [19432.400018] [<f8568d36>] ? btrfs_setattr_size+0xc6/0x2d0 [btrfs] [19432.400018] [<f8568fc7>] ? btrfs_setattr+0x87/0x90 [btrfs] [19432.400018] [<c0238203>] ? notify_change+0x143/0x2f0 [19432.400018] [<c022bd3b>] ? putname+0x2b/0x40 [19432.400018] [<c0221a42>] ? do_truncate+0x62/0x90 [19432.400018] [<c030dd9a>] ? security_path_truncate+0x3a/0x50 [19432.400018] [<c0221d37>] ? do_sys_truncate+0x137/0x140 [19432.400018] [<c0221d56>] ? sys_truncate64+0x16/0x20 [19432.400018] [<c05f00f4>] ? syscall_call+0x7/0xb [19432.400018] [<c05f0000>] ? _lock_kernel+0x20/0x8a [19432.400018] Code: ae ff ff 85 c0 74 c3 0f 0b eb fe 89 f9 89 f2 89 d8 e8 b2 4a 01 00 e9 cf fe ff ff 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe 0f 0b eb fe <0f> 0b eb fe 0f 0b eb fe 0f 0b eb fe 90 55 89 e5 57 56 53 83 ec [19432.400018] EIP: [<f8564893>] btrfs_truncate+0x223/0x230 [btrfs] SS:ESP 0068:f65b5e8c [19432.418489] ---[ end trace e8ea54bc05860e2a ]--- --Ravi -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
