Am 13.11.2015 um 16:33 schrieb Filipe Manana:
On Thu, Aug 13, 2015 at 9:38 AM, Stefan Priebe - Profihost AG <s.priebe@xxxxxxxxxxxx> wrote:Seen today: [150110.712196] ------------[ cut here ]------------ [150110.776995] kernel BUG at fs/btrfs/inode.c:3230! [150110.841067] invalid opcode: 0000 [#1] SMP [150110.904472] Modules linked in: dm_mod netconsole ipt_REJECT nf_reject_ipv4 xt_multiport iptable_filter ip_tables x_tables cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_conservative bonding usbhid ext2 coretemp loop ehci_pci ehci_hcd sb_edac i2c_i801 usbcore edac_core i2c_core usb_common ipmi_si shpchp ipmi_msghandler button btrfs lzo_compress raid0 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq raid1 md_mod sg sd_mod ixgbe(O) i40e(O) vxlan ip6_udp_tunnel udp_tunnel ahci ptp aacraid libahci pps_core [150111.236617] CPU: 27 PID: 5015 Comm: btrfs-cleaner Tainted: G O 4.2-rc6 #1 [150111.305690] Hardware name: Supermicro X10DRH/X10DRH-IT, BIOS 1.0c 02/18/2015 [150111.376185] task: ffff88104ec19d50 ti: ffff8810328bc000 task.ti: ffff8810328bc000 [150111.446596] RIP: 0010:[<ffffffffa01caaa3>] [<ffffffffa01caaa3>] btrfs_orphan_add+0x153/0x230 [btrfs] [150111.518909] RSP: 0018:ffff8810328bfbf8 EFLAGS: 00010286 [150111.591117] RAX: 00000000ffffffe4 RBX: ffff88104bc0d000 RCX: ffff881052942000 [150111.664479] RDX: 000000000000dc9e RSI: 0000000000040000 RDI: ffff881052942138 [150111.737600] RBP: ffff8810328bfc38 R08: 000060ef80001fd0 R09: ffff880ec4c0f3f0 [150111.810923] R10: ffffffffa01e1527 R11: ffffea0030914100 R12: ffff880a127477d0 [150111.884381] R13: 0000000000000001 R14: ffff880d4c35fcc0 R15: 0000000000000001 [150111.957062] FS: 0000000000000000(0000) GS:ffff88107fd60000(0000) knlGS:0000000000000000 [150112.031233] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [150112.104347] CR2: 0000000001262000 CR3: 0000000001c14000 CR4: 00000000001407e0 [150112.178463] Stack: [150112.251776] ffff8810328bfc38 ffffffffa020ce17 ffff8810538aa000 ffff880d4c35fcc0 [150112.327874] ffff8810538aa000 ffff880ec4c0f3f0 ffff880a127477d0 ffff881037d26600 [150112.404005] ffff8810328bfcd8 ffffffffa01b3e06 ffff88104cf54c00 ffff880d4c35fcc0 [150112.480156] Call Trace: [150112.555499] [<ffffffffa020ce17>] ? lookup_free_space_inode+0x47/0xf0 [btrfs] [150112.632958] [<ffffffffa01b3e06>] btrfs_remove_block_group+0x246/0x930 [btrfs] [150112.709655] [<ffffffffa01ed447>] btrfs_remove_chunk+0x6a7/0x950 [btrfs] [150112.785134] [<ffffffffa01b4819>] btrfs_delete_unused_bgs+0x329/0x350 [btrfs] [150112.860907] [<ffffffffa01bc396>] cleaner_kthread+0x196/0x200 [btrfs] [150112.936807] [<ffffffffa01bc200>] ? btree_read_extent_buffer_pages.constprop.128+0x110/0x110 [btrfs] [150113.014224] [<ffffffff81090d59>] kthread+0xc9/0xe0 [150113.090363] [<ffffffff81090c90>] ? kthread_worker_fn+0x150/0x150 [150113.165866] [<ffffffff815fb708>] ret_from_fork+0x58/0x90 [150113.241276] [<ffffffff81090c90>] ? kthread_worker_fn+0x150/0x150 [150113.316909] Code: 0f 1f 84 00 00 00 00 00 49 8b 54 24 38 eb 8d 66 0f 1f 84 00 00 00 00 00 4c 89 e6 4c 89 f7 e8 c5 05 fe ff 85 c0 0f 84 53 ff ff ff <0f> 0b 0f 1f 00 be 07 00 00 00 48 89 df e8 fb 02 fe ff 48 85 c0 [150113.476216] RIP [<ffffffffa01caaa3>] btrfs_orphan_add+0x153/0x230 [btrfs] [150113.553676] RSP <ffff8810328bfbf8> [150113.630868] ---[ end trace d01d42d1600e0787 ]---Thanks for reporting. Not a new issue, it's been around for many kernel releases before 4.2 and got less likely to hit from 4.0 onwards. This is now fixed by the second patch in the following patchset: http://thread.gmane.org/gmane.comp.file-systems.btrfs/50150
Thx! Stefan
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