Hello, i get this kernel message on my btrfs filesystem. kernel is 3.2.2-1-aufs_friendly from arch linux (3.2.2 with aufs patches) [ 401.013567] ------------[ cut here ]------------ [ 401.013594] kernel BUG at fs/btrfs/extent-tree.c:5736! [ 401.013616] invalid opcode: 0000 [#1] PREEMPT SMP [ 401.013641] CPU 2 [ 401.013650] Modules linked in: fuse ipv6 btrfs zlib_deflate crc32c libcrc32c loop xfs exportfs ext2 raid456 async_raid6_recov async_pq raid6_pq async_xor snd_hda_codec_hdmi xor async_memcpy async_tx md_mod snd_hda_intel snd_hda_codec radeon snd_hwdep snd_pcm snd_timer snd ttm soundcore drm_kms_helper drm i2c_piix4 snd_page_alloc i2c_algo_bit i2c_core shpchp pci_hotplug processor edac_core sp5100_tco evdev r8169 pcspkr button mii wmi edac_mce_amd k10temp ext4 mbcache jbd2 crc16 sd_mod pata_acpi ohci_hcd pata_jmicron ehci_hcd ahci libahci libata xhci_hcd usbcore scsi_mod usb_common [ 401.013957] [ 401.013966] Pid: 548, comm: btrfs-cleaner Not tainted 3.2.2-1-aufs_friendly #1 Gigabyte Technology Co., Ltd. GA-890GPA-UD3H/GA-890GPA-UD3H [ 401.014020] RIP: 0010:[<ffffffffa04b4db7>] [<ffffffffa04b4db7>] alloc_reserved_file_extent+0x1e7/0x200 [btrfs] [ 401.014073] RSP: 0018:ffff8801e5d05b70 EFLAGS: 00010282 [ 401.014095] RAX: 00000000ffffffef RBX: ffff8801e75d4630 RCX: 0000000000000001 [ 401.014124] RDX: 0000000000000008 RSI: 0000000000000001 RDI: ffff8801eb2a6be0 [ 401.014153] RBP: ffff8801e5d05bf0 R08: 00000000000004ad R09: ffff8801e5d059b0 [ 401.014181] R10: ffff8801fa4c2800 R11: ffff8801e1924090 R12: 00000000000000b2 [ 401.014210] R13: 0000000000000000 R14: ffff8801e5d05c9b R15: ffff8801e1924090 [ 401.014239] FS: 00007f2012b1a740(0000) GS:ffff88020fc80000(0000) knlGS:0000000000000000 [ 401.014271] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 401.014295] CR2: 00007fb3c00b0088 CR3: 00000001e4a80000 CR4: 00000000000006e0 [ 401.014324] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 401.014352] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 401.014382] Process btrfs-cleaner (pid: 548, threadinfo ffff8801e5d04000, task ffff880201b063c0) [ 401.014416] Stack: [ 401.014425] ffff880100000035 000000000000023f 0000000000000d6b 0000000000000000 [ 401.014462] ffff8801fa4c2000 0000000000000246 ffffffffa04b8e4d ffff8801f9ef0000 [ 401.014497] ffff88018febe038 00000035d245c0f0 ffff8801e5d05bf0 ffff88018d9fa9c0 [ 401.014533] Call Trace: [ 401.014550] [<ffffffffa04b8e4d>] ? run_clustered_refs+0x11d/0x810 [btrfs] [ 401.014583] [<ffffffffa04b9029>] run_clustered_refs+0x2f9/0x810 [btrfs] [ 401.014618] [<ffffffffa0506101>] ? btrfs_find_ref_cluster+0xe1/0x190 [btrfs] [ 401.014651] [<ffffffffa04b9608>] btrfs_run_delayed_refs+0xc8/0x220 [btrfs] [ 401.014684] [<ffffffffa04c9c98>] btrfs_should_end_transaction+0x98/0xa0 [btrfs] [ 401.014719] [<ffffffffa04bb2a4>] btrfs_drop_snapshot+0x2c4/0x590 [btrfs] [ 401.014752] [<ffffffffa04d993e>] ? btrfs_run_defrag_inodes+0x1fe/0x210 [btrfs] [ 401.014786] [<ffffffffa04cb37f>] btrfs_clean_old_snapshots+0xff/0x140 [btrfs] [ 401.014820] [<ffffffffa04c2ffc>] cleaner_kthread+0x16c/0x1a0 [btrfs] [ 401.014851] [<ffffffffa04c2e90>] ? transaction_kthread+0x290/0x290 [btrfs] [ 401.014881] [<ffffffff8108839c>] kthread+0x8c/0xa0 [ 401.014903] [<ffffffff8142b2f4>] kernel_thread_helper+0x4/0x10 [ 401.014929] [<ffffffff81088310>] ? kthread_worker_fn+0x190/0x190 [ 401.014956] [<ffffffff8142b2f0>] ? gs_change+0x13/0x13 [ 401.014978] Code: 4c 89 ea 48 89 c6 e8 59 b4 02 00 48 8b 75 a8 8b 55 20 48 8b 7d b8 48 81 c6 86 00 00 00 e8 12 b2 02 00 eb 92 b8 f4 ff ff ff eb bf <0f> 0b 49 8b 56 09 49 8b 36 48 c7 c7 20 f0 51 a0 31 c0 e8 6a 9b [ 401.016869] RIP [<ffffffffa04b4db7>] alloc_reserved_file_extent+0x1e7/0x200 [btrfs] [ 401.016869] RSP <ffff8801e5d05b70> [ 401.019349] ---[ end trace c960a7b93b93472b ]--- [ 401.020617] note: btrfs-cleaner[548] exited with preempt_count 1 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html