Hi,
I have a raid10 array that occasionally causes the kernel to write kernel bug
messages and to take down the router that this machine is plugged into.
It’s a pretty standard install of Ubuntu 16.04.1 LTS (GNU/Linux
4.4.0-38-generic x86_64); the only kernel taint is the ZFS on Linux package
that is in available in the Ubuntu repos.
Mount options are: noatime,compress-force=lzo,space_cache
Please let me know if I can provide additional information to help. The issue
is logged on bugzilla at:
https://bugzilla.kernel.org/show_bug.cgi?id=177081
dmesg output follows:
[89563.409316] ------------[ cut here ]------------
[89563.409829] kernel BUG at
/build/linux-R0TiM8/linux-4.4.0/fs/btrfs/volumes.c:5509!
[89563.410339] invalid opcode: 0000 [#1] SMP
[89563.410830] Modules linked in: xt_mark xt_nat veth xt_addrtype br_netfilter
aufs xt_conntrack ipt_REJECT nf_reject_ipv4 ebtable_filter ebtables
ip6table_filter ip6_tables xt_CHECKSUM iptable_mangle ipt_MASQUERADE
nf_nat_masquerade_ipv4 iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4
nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables
zram lz4_compress binfmt_misc zfs(PO) zunicode(PO) zcommon(PO) znvpair(PO)
spl(O) zavl(PO) drbg ansi_cprng dm_crypt ipmi_ssif intel_rapl
x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul
aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd joydev
input_leds mei_me lpc_ich mei ipmi_si 8250_fintek ipmi_msghandler mac_hid
ie31200_edac shpchp tpm_crb edac_core acpi_pad kvm_intel kvm irqbypass autofs4
[89563.414092] btrfs xor raid6_pq hid_generic usbhid hid uas ast usb_storage
ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops igb e1000e dca
ahci drm ptp mpt3sas libahci i2c_algo_bit raid_class pps_core
scsi_transport_sas fjes video
[89563.415809] CPU: 6 PID: 12096 Comm: kworker/u16:10 Tainted: P O
4.4.0-38-generic #57-Ubuntu
[89563.416401] Hardware name: Supermicro X10SLM-F/X10SLM-F, BIOS 3.0 04/24/2015
[89563.417007] Workqueue: btrfs-endio btrfs_endio_helper [btrfs]
[89563.417596] task: ffff8803eb148dc0 ti: ffff88014e874000 task.ti:
ffff88014e874000
[89563.418191] RIP: 0010:[<ffffffffc0315e56>] [<ffffffffc0315e56>]
__btrfs_map_block+0xe26/0x1180 [btrfs]
[89563.418806] RSP: 0018:ffff88014e877a88 EFLAGS: 00010296
[89563.419403] RAX: 00000000dd213b80 RBX: 0000000000000008 RCX: 0000000000000008
[89563.420012] RDX: 0000000000000002 RSI: 0000000000007000 RDI: 0000000000000002
[89563.420609] RBP: ffff88014e877b70 R08: 00007e1b47c00000 R09: 00000000dd213b80
[89563.421206] R10: 0000000000010000 R11: 00000000dfef0000 R12: 00000000dd213b83
[89563.421797] R13: 0000000000009000 R14: ffff88014e877bb0 R15: 0000000000000000
[89563.422387] FS: 0000000000000000(0000) GS:ffff88081fd80000(0000)
knlGS:0000000000000000
[89563.422976] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[89563.423560] CR2: 00007fc361432000 CR3: 0000000001e0a000 CR4: 00000000001406e0
[89563.424154] Stack:
[89563.424737] ffff8807fb42cc28 ffff88014e877ab8 ffff88014e877a88
0000000000000000
[89563.425333] ffff88014e877b20 ffffffffc02b8e0d 0000000000000000
000000000000dfef
[89563.425924] 00000000000037fb ffff8807fb430ee0 ffff880100000000
0000000000000000
[89563.426532] Call Trace:
[89563.427136] [<ffffffffc02b8e0d>] ? btrfs_printk+0x8d/0xf0 [btrfs]
[89563.427740] [<ffffffffc0316722>] btrfs_map_bio+0x82/0x320 [btrfs]
[89563.428328] [<ffffffff811ebe4f>] ? kmem_cache_alloc+0x19f/0x1f0
[89563.428944] [<ffffffffc02e1a98>] ? btrfs_bio_wq_end_io+0x28/0x70 [btrfs]
[89563.429539] [<ffffffffc0333709>] btrfs_submit_compressed_read+0x319/0x4c0
[btrfs]
[89563.430137] [<ffffffffc02eaf81>] btrfs_submit_bio_hook+0x1a1/0x1b0 [btrfs]
[89563.430727] [<ffffffffc03098dc>] ? btrfs_create_repair_bio+0xdc/0x100
[btrfs]
[89563.431320] [<ffffffffc0309db7>] end_bio_extent_readpage+0x4b7/0x5b0 [btrfs]
[89563.431910] [<ffffffffc0309900>] ? btrfs_create_repair_bio+0x100/0x100
[btrfs]
[89563.432493] [<ffffffff813bb0df>] bio_endio+0x3f/0x60
[89563.433059] [<ffffffffc02df3bc>] end_workqueue_fn+0x3c/0x40 [btrfs]
[89563.433628] [<ffffffffc031ae9a>] btrfs_scrubparity_helper+0xca/0x2f0 [btrfs]
[89563.434199] [<ffffffffc031b1ae>] btrfs_endio_helper+0xe/0x10 [btrfs]
[89563.434758] [<ffffffff8109a395>] process_one_work+0x165/0x480
[89563.435312] [<ffffffff8109a6fb>] worker_thread+0x4b/0x4c0
[89563.435864] [<ffffffff8109a6b0>] ? process_one_work+0x480/0x480
[89563.436413] [<ffffffff810a08d8>] kthread+0xd8/0xf0
[89563.436980] [<ffffffff810a0800>] ? kthread_create_on_node+0x1e0/0x1e0
[89563.437526] [<ffffffff81830a8f>] ret_from_fork+0x3f/0x70
[89563.438067] [<ffffffff810a0800>] ? kthread_create_on_node+0x1e0/0x1e0
[89563.438600] Code: 40 ff ff ff 4c 8b 95 38 ff ff ff 48 89 85 58 ff ff ff e9
fe f3 ff ff f7 c7 00 01 00 00 b8 02 00 00 00 44 0f 45 d0 e9 f6 f8 ff ff <0f> 0b
bb f4 ff ff ff e9 b7 fa ff ff be 6a 16 00 00 48 c7 c7 e0
[89563.439700] RIP [<ffffffffc0315e56>] __btrfs_map_block+0xe26/0x1180 [btrfs]
[89563.440233] RSP <ffff88014e877a88>
[89563.442706] ---[ end trace d34ac9264111b8fa ]—
Thanks!--
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