*** This bug is a duplicate of bug 1413008 ***
https://bugs.launchpad.net/bugs/1413008
This bug has effected me with linux-image-extra-3.19.0-26-generic &
linux-image-3.19.0-26-generic.
I was doing an "rsync" job when it completely blocked.
Unable to kill rsync, not even with "kill -9".
Unable to "reboot -fn".
Only hard resetting the server worked.
(However, I was able to operate on ext4 partitions as I used to).
[Wed Aug 19 23:24:01 2015] ------------[ cut here ]------------
[Wed Aug 19 23:24:01 2015] kernel BUG at
/build/linux-UKwbSJ/linux-3.19.0/fs/btrfs/inode.c:3142!
[Wed Aug 19 23:24:01 2015] invalid opcode: 0000 [#1] SMP
[Wed Aug 19 23:24:01 2015] Modules linked in: cpuid nf_log_ipv4 xt_nat
vhost_net vhost macvtap macvlan xts gf128mul xt_CHECKSUM ipt_MASQUERADE
nf_nat_masquerade_ipv4 ebtable_fil
ter ebtables iptable_nat nf_nat_ipv4 ipt_REJECT nf_reject_ipv4 iptable_mangle
iptable_raw nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_tftp nf_nat_snmp_basic
nf_nat_sip nf_nat_pptp n
f_nat_proto_gre nf_nat_irc nf_nat_h323 nf_nat_ftp nf_nat_amanda ipmi_devintf
iptable_filter ip_tables ipmi_si ipmi_msghandler nf_log_ipv6 nf_log_common
xt_recent ip6table_nat nf
_nat_ipv6 nf_nat xt_comment ip6t_REJECT nf_reject_ipv6 xt_addrtype xt_physdev
br_netfilter xt_mark ip6table_mangle nf_conntrack_snmp xt_tcpudp xt_CT
ip6table_raw xt_multiport nf
_conntrack_ipv6 nf_defrag_ipv6 xt_conntrack xt_NFLOG nfnetlink_log xt_LOG
nf_conntrack_tftp nf_conntrack_sip nf_conntrack_sane
[Wed Aug 19 23:24:01 2015] nf_conntrack_proto_udplite nf_conntrack_proto_sctp
nf_conntrack_pptp nf_conntrack_proto_gre nf_conntrack_netlink nfnetlink
nf_conntrack_netbios_ns nf
_conntrack_broadcast nf_conntrack_irc nf_conntrack_h323 nf_conntrack_ftp ts_kmp
nf_conntrack_amanda nf_conntrack ip6table_filter ip6_tables x_tables bridge stp
llc gpio_ich ppde
v kvm_intel kvm parport_pc i3200_edac serio_raw shpchp edac_core parport
lpc_ich mac_hid xgifb(C) 8250_fintek dm_crypt coretemp autofs4 btrfs raid10
raid0 multipath linear raid1
raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor
raid6_pq hid_generic usbhid e1000e ahci psmouse libahci ptp hid pps_core
[Wed Aug 19 23:24:01 2015] CPU: 3 PID: 27450 Comm: btrfs-cleaner Tainted: G
C 3.19.0-26-generic #27-Ubuntu
[Wed Aug 19 23:24:01 2015] Hardware name: empty empty/TYAN Toledo i3210W/i3200R
S5211, BIOS V1.06 09/30/2008
[Wed Aug 19 23:24:01 2015] task: ffff8800eb8475c0 ti: ffff880101df4000 task.ti:
ffff880101df4000
[Wed Aug 19 23:24:01 2015] RIP: 0010:[<ffffffffc0553980>] [<ffffffffc0553980>]
btrfs_orphan_add+0x1c0/0x1e0 [btrfs]
[Wed Aug 19 23:24:01 2015] RSP: 0018:ffff880101df7c38 EFLAGS: 00010286
[Wed Aug 19 23:24:01 2015] RAX: 00000000ffffffe4 RBX: ffff8800e968e000 RCX:
ffff8801a9595000
[Wed Aug 19 23:24:01 2015] RDX: 000000000000ea9a RSI: 0000000000040000 RDI:
ffff8801a9595138
[Wed Aug 19 23:24:01 2015] RBP: ffff880101df7c78 R08: 000000000001cef0 R09:
ffff8800105f0120
[Wed Aug 19 23:24:01 2015] R10: ffff88020fd9cf30 R11: ffffea0004019340 R12:
ffff880002e141a0
[Wed Aug 19 23:24:01 2015] R13: ffff88010072f9a0 R14: ffff8800e968e458 R15:
0000000000000001
[Wed Aug 19 23:24:01 2015] FS: 0000000000000000(0000)
GS:ffff88020fd80000(0000) knlGS:0000000000000000
[Wed Aug 19 23:24:01 2015] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[Wed Aug 19 23:24:01 2015] CR2: 00000000032b3218 CR3: 00000000eacea000 CR4:
00000000000427e0
[Wed Aug 19 23:24:01 2015] Stack:
[Wed Aug 19 23:24:01 2015] ffff880101df7c78 ffffffffc0591bb5 ffff8801a9595000
ffff880202a53000
[Wed Aug 19 23:24:01 2015] ffff8800105f0120 ffff880002e141a0 ffff880102206800
ffff880014f46900
[Wed Aug 19 23:24:01 2015] ffff880101df7d08 ffffffffc053d2da ffff8800105f0120
ffff8800105f01a0
[Wed Aug 19 23:24:01 2015] Call Trace:
[Wed Aug 19 23:24:01 2015] [<ffffffffc0591bb5>] ?
lookup_free_space_inode+0x45/0xf0 [btrfs]
[Wed Aug 19 23:24:01 2015] [<ffffffffc053d2da>]
btrfs_remove_block_group+0x13a/0x760 [btrfs]
[Wed Aug 19 23:24:01 2015] [<ffffffffc0576e6a>] btrfs_remove_chunk+0x63a/0x760
[btrfs]
[Wed Aug 19 23:24:01 2015] [<ffffffffc053db49>]
btrfs_delete_unused_bgs+0x249/0x270 [btrfs]
[Wed Aug 19 23:24:01 2015] [<ffffffffc05460e4>] cleaner_kthread+0x144/0x1a0
[btrfs]
[Wed Aug 19 23:24:01 2015] [<ffffffffc0545fa0>] ? check_leaf+0x360/0x360
[btrfs]
[Wed Aug 19 23:24:01 2015] [<ffffffff81095939>] kthread+0xc9/0xe0
[Wed Aug 19 23:24:01 2015] [<ffffffff81095870>] ?
kthread_create_on_node+0x1c0/0x1c0
[Wed Aug 19 23:24:01 2015] [<ffffffff817cb658>] ret_from_fork+0x58/0x90
[Wed Aug 19 23:24:01 2015] [<ffffffff81095870>] ?
kthread_create_on_node+0x1c0/0x1c0
[Wed Aug 19 23:24:01 2015] Code: 60 04 00 00 e9 b0 fe ff ff 66 90 89 45 c8 f0
41 80 64 24 80 fd 4c 89 e7 e8 9e 21 fe ff 8b 45 c8 e9 1b ff ff ff 66 0f 1f 44
00 00 <0f> 0b b8 f4 ff ff ff e9 10 ff ff ff 4c 89 f7 45 31 f6 e8 29 78
[Wed Aug 19 23:24:01 2015] RIP [<ffffffffc0553980>]
btrfs_orphan_add+0x1c0/0x1e0 [btrfs]
[Wed Aug 19 23:24:01 2015] RSP <ffff880101df7c38>
[Wed Aug 19 23:24:01 2015] ---[ end trace 659ce2722e7eecfe ]---
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https://bugs.launchpad.net/bugs/1442884
Title:
kernel BUG at /build/buildd/linux-3.19.0/fs/btrfs/inode.c:3142!
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