When rebooting from a crash, thus during log replay on 2.6.29-rc2, btrfs_insert_dir_item caused an assertion failure [1]. The fs was being mounted clear_cache on an SSD.
Probably it's not so easy to reproduce, but better to report it... --- [1] kernel BUG at fs/btrfs/inode.c:4665! invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC last sysfs file: /sys/devices/virtual/wmi/A80593CE-A997-11DA-B012-B622A1EF5492/uevent CPU 3 Modules linked in: video sdhci_pci sdhci mmc_core Pid: 328, comm: mount Not tainted 2.6.39-rc2-350cd+ #1 Dell Inc. Latitude E5420/0H5TG2 RIP: 0010:[<ffffffff812a2962>] [<ffffffff812a2962>] btrfs_add_link+0x132/0x190 RSP: 0018:ffff88021e1097d8 EFLAGS: 00010282 RAX: 00000000ffffffef RBX: ffff88021d965f70 RCX: 0000000000000006 RDX: 00000000ffffffef RSI: ffff88021efe4710 RDI: ffff88021efe4020 RBP: ffff88021e109848 R08: 0000000000000000 R09: ffff88022d7c03f0 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88021d966720 R13: ffff88021e0261b0 R14: 000000000000000f R15: ffff88021d959000 FS: 00007fcee7b3d800(0000) GS:ffff88022ec60000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f5e5ffff700 CR3: 000000021e6ef000 CR4: 00000000000406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process mount (pid: 328, threadinfo ffff88021e108000, task ffff88021efe4020) Stack: ffff880200000001 0000000000000016 ffff88021e109978 0000000000000016 000000000010555e 0000000000000001 0000000000001000 0000000000000000 ffff88021e03a000 0000000000000000 00000000000000b0 ffff88021e109ae8 Call Trace: [<ffffffff812ccb45>] add_inode_ref+0x2f5/0x3b0 [<ffffffff81058e61>] ? get_parent_ip+0x11/0x50 [<ffffffff812cdff6>] replay_one_buffer+0x2c6/0x3a0 [<ffffffff81099fd0>] ? mark_held_locks+0x70/0xa0 [<ffffffff81058e61>] ? get_parent_ip+0x11/0x50 [<ffffffff812ca978>] walk_up_log_tree+0x168/0x320 [<ffffffff812cdd30>] ? replay_one_dir_item+0xe0/0xe0 [<ffffffff812cb188>] walk_log_tree+0xe8/0x290 [<ffffffff8109a18d>] ? trace_hardirqs_on+0xd/0x10 [<ffffffff812d0000>] btrfs_recover_log_trees+0x220/0x320 [<ffffffff812cdd30>] ? replay_one_dir_item+0xe0/0xe0 [<ffffffff81295521>] open_ctree+0x1301/0x16b0 [<ffffffff81331ab4>] ? snprintf+0x34/0x40 [<ffffffff812701e3>] btrfs_fill_super.clone.14+0x73/0x130 [<ffffffff811a4aaf>] ? disk_name+0x5f/0xc0 [<ffffffff8132ef77>] ? strlcpy+0x47/0x60 [<ffffffff812705e0>] btrfs_mount+0x340/0x3e0 [<ffffffff81143e9b>] mount_fs+0x1b/0xd0 [<ffffffff8115fece>] vfs_kern_mount+0x5e/0xd0 [<ffffffff8116045f>] do_kern_mount+0x4f/0x100 [<ffffffff81161ea4>] do_mount+0x1e4/0x220 [<ffffffff8116228b>] sys_mount+0x8b/0xe0 [<ffffffff8170adfb>] system_call_fastpath+0x16/0x1b Code: 4c 89 d2 44 89 f1 4c 89 ee 4c 89 1c 24 4c 89 55 a8 4c 89 5d a0 e8 5f c6 fe ff 4c 8b 5d a0 4c 8b 55 a8 85 c0 75 bc e9 31 ff ff ff <0f> 0b 48 8b b2 d0 fc ff ff 48 8d 7d b0 b9 11 00 00 00 4d 89 d9 RIP [<ffffffff812a2962>] btrfs_add_link+0x132/0x190 RSP <ffff88021e1097d8> -- Daniel J Blueman -- 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
