Hi,
BTRFS crashed because the system ran out of memory...
I see these entries in your logs:
Jan 4 17:11:06 ceph1 kernel: [756636.535661] kworker/0:2: page
allocation failure: order:1, mode:0x204020
....
Jan 4 17:11:06 ceph1 kernel: [756636.536112] BTRFS: error (device
sdb1) in create_pending_snapshot:1334: errno=-12 Out of memory
....
Jan 4 17:11:06 ceph1 kernel: [756636.536135] BTRFS: error (device
sdb1) in cleanup_transaction:1577: errno=-12 Out of memory
How much memory do you have in this node? Where you using Ceph
(as a client) on this node? Do you have swap configured on this
node?
On 2015-01-04 07:12, Jiri Kanicky wrote:
Hi,
My OSDs with btrfs are down on one node. I found the cluster in this
state:
cephadmin@ceph1:~$ ceph osd tree
# id weight type name up/down reweight
-1 10.88 root default
-2 5.44 host ceph1
0 2.72 osd.0 down 0
1 2.72 osd.1 down 0
-3 5.44 host ceph2
2 2.72 osd.2 up 1
3 2.72 osd.3 up 1
cephadmin@ceph1:~$ ceph status
cluster bce2ff4d-e03b-4b75-9b17-8a48ee4d7788
health HEALTH_ERR 645 pgs degraded; 29 pgs inconsistent; 14 pgs
recovering; 645 pgs stuck degraded; 768 pgs stuck unclean; 631 pgs
stuck undersized; 631 pgs undersized; recovery 397226/915548 objects
degraded (43.387%); 72026/915548 objects misplaced (7.867%); 783 scrub
errors
monmap e1: 2 mons at
{ceph1=192.168.30.21:6789/0,ceph2=192.168.30.22:6789/0}, election
epoch 30, quorum 0,1 ceph1,ceph2
mdsmap e30: 1/1/1 up {0=ceph1=up:active}, 1 up:standby
osdmap e242: 4 osds: 2 up, 2 in
pgmap v38318: 768 pgs, 3 pools, 1572 GB data, 447 kobjects
1811 GB used, 3764 GB / 5579 GB avail
397226/915548 objects degraded (43.387%); 72026/915548
objects misplaced (7.867%)
14 active+recovering+degraded+remapped
122 active+remapped
1 active+remapped+inconsistent
603 active+undersized+degraded
28 active+undersized+degraded+inconsistent
Would you know if this is pure BTRFS issue or is there any setting I
forgot to use?
Jan 4 17:11:06 ceph1 kernel: [756636.535661] kworker/0:2: page
allocation failure: order:1, mode:0x204020
Jan 4 17:11:06 ceph1 kernel: [756636.535669] CPU: 0 PID: 62644 Comm:
kworker/0:2 Not tainted 3.16.0-0.bpo.4-amd64 #1 Debian
3.16.7-ckt2-1~bpo70+1
Jan 4 17:11:06 ceph1 kernel: [756636.535671] Hardware name: HP
ProLiant MicroServer Gen8, BIOS J06 11/09/2013
Jan 4 17:11:06 ceph1 kernel: [756636.535701] Workqueue: events
do_async_commit [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.535704] 0000000000000000
0000000000000001 ffffffff81541f8f 0000000000204020
Jan 4 17:11:06 ceph1 kernel: [756636.535707] ffffffff811519ed
0000000000000001 ffff880075de0c00 0000000000000002
Jan 4 17:11:06 ceph1 kernel: [756636.535710] 0000000000000000
0000000000000001 ffff880075de0c08 0000000000000096
Jan 4 17:11:06 ceph1 kernel: [756636.535713] Call Trace:
Jan 4 17:11:06 ceph1 kernel: [756636.535720] [<ffffffff81541f8f>] ?
dump_stack+0x41/0x51
Jan 4 17:11:06 ceph1 kernel: [756636.535725] [<ffffffff811519ed>] ?
warn_alloc_failed+0xfd/0x160
Jan 4 17:11:06 ceph1 kernel: [756636.535730] [<ffffffff8115606f>] ?
__alloc_pages_nodemask+0x91f/0xbb0
Jan 4 17:11:06 ceph1 kernel: [756636.535734] [<ffffffff8119fe00>] ?
kmem_getpages+0x60/0x110
Jan 4 17:11:06 ceph1 kernel: [756636.535737] [<ffffffff811a1648>] ?
fallback_alloc+0x158/0x220
Jan 4 17:11:06 ceph1 kernel: [756636.535741] [<ffffffff811a1f44>] ?
kmem_cache_alloc+0x1a4/0x1e0
Jan 4 17:11:06 ceph1 kernel: [756636.535745] [<ffffffff812c8fa0>] ?
ida_pre_get+0x60/0xd0
Jan 4 17:11:06 ceph1 kernel: [756636.535749] [<ffffffff811bdf61>] ?
get_anon_bdev+0x21/0xe0
Jan 4 17:11:06 ceph1 kernel: [756636.535762] [<ffffffffa015caef>] ?
btrfs_init_fs_root+0xff/0x1b0 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.535774] [<ffffffffa015de23>] ?
btrfs_read_fs_root+0x33/0x40 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.535785] [<ffffffffa015df06>] ?
btrfs_get_fs_root+0xd6/0x230 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.535796] [<ffffffffa0162383>] ?
create_pending_snapshot+0x793/0xa00 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.535807] [<ffffffffa0162679>] ?
create_pending_snapshots+0x89/0xa0 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.535818] [<ffffffffa016394a>] ?
btrfs_commit_transaction+0x35a/0xa10 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.535824] [<ffffffff8107a88e>] ?
mod_timer+0x10e/0x220
Jan 4 17:11:06 ceph1 kernel: [756636.535834] [<ffffffffa016402a>] ?
do_async_commit+0x2a/0x40 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.535839] [<ffffffff810878fc>] ?
process_one_work+0x15c/0x450
Jan 4 17:11:06 ceph1 kernel: [756636.535843] [<ffffffff81088b52>] ?
worker_thread+0x112/0x540
Jan 4 17:11:06 ceph1 kernel: [756636.535847] [<ffffffff81088a40>] ?
create_and_start_worker+0x60/0x60
Jan 4 17:11:06 ceph1 kernel: [756636.535851] [<ffffffff8108f511>] ?
kthread+0xc1/0xe0
Jan 4 17:11:06 ceph1 kernel: [756636.535854] [<ffffffff8108f450>] ?
flush_kthread_worker+0xb0/0xb0
Jan 4 17:11:06 ceph1 kernel: [756636.535858] [<ffffffff815483bc>] ?
ret_from_fork+0x7c/0xb0
Jan 4 17:11:06 ceph1 kernel: [756636.535861] [<ffffffff8108f450>] ?
flush_kthread_worker+0xb0/0xb0
Jan 4 17:11:06 ceph1 kernel: [756636.535863] Mem-Info:
Jan 4 17:11:06 ceph1 kernel: [756636.535865] Node 0 DMA per-cpu:
Jan 4 17:11:06 ceph1 kernel: [756636.535867] CPU 0: hi: 0,
btch: 1 usd: 0
Jan 4 17:11:06 ceph1 kernel: [756636.535869] CPU 1: hi: 0,
btch: 1 usd: 0
Jan 4 17:11:06 ceph1 kernel: [756636.535870] Node 0 DMA32 per-cpu:
Jan 4 17:11:06 ceph1 kernel: [756636.535872] CPU 0: hi: 186,
btch: 31 usd: 216
Jan 4 17:11:06 ceph1 kernel: [756636.535874] CPU 1: hi: 186,
btch: 31 usd: 150
Jan 4 17:11:06 ceph1 kernel: [756636.535879] active_anon:156968
inactive_anon:52877 isolated_anon:0
Jan 4 17:11:06 ceph1 kernel: [756636.535879] active_file:117459
inactive_file:98113 isolated_file:0
Jan 4 17:11:06 ceph1 kernel: [756636.535879] unevictable:0
dirty:2167 writeback:0 unstable:0
Jan 4 17:11:06 ceph1 kernel: [756636.535879] free:18814
slab_reclaimable:12533 slab_unreclaimable:5401
Jan 4 17:11:06 ceph1 kernel: [756636.535879] mapped:3555 shmem:2
pagetables:1364 bounce:0
Jan 4 17:11:06 ceph1 kernel: [756636.535879] free_cma:0
Jan 4 17:11:06 ceph1 kernel: [756636.535883] Node 0 DMA free:7440kB
min:380kB low:472kB high:568kB active_anon:0kB inactive_anon:52kB
active_file:896kB inactive_file:132kB unevictable:0kB
isolated(anon):0kB isolated(file):0kB present:15976kB managed:15892kB
mlocked:0kB dirty:0kB writeback:0kB mapped:4kB shmem:0kB
slab_reclaimable:792kB slab_unreclaimable:272kB kernel_stack:928kB
pagetables:64kB unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB
pages_scanned:0 all_unreclaimable? no
Jan 4 17:11:06 ceph1 kernel: [756636.535889] lowmem_reserve[]: 0 1823
1823 1823
Jan 4 17:11:06 ceph1 kernel: [756636.535893] Node 0 DMA32
free:67816kB min:44672kB low:55840kB high:67008kB active_anon:627872kB
inactive_anon:211456kB active_file:468940kB inactive_file:392320kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB
present:1914768kB managed:1869828kB mlocked:0kB dirty:8688kB
writeback:0kB mapped:14216kB shmem:8kB slab_reclaimable:49340kB
slab_unreclaimable:21332kB kernel_stack:6624kB pagetables:5392kB
unstable:0kB bounce:0kB free_cma:0kB writeback_tmp:0kB
pages_scanned:279 all_unreclaimable? no
Jan 4 17:11:06 ceph1 kernel: [756636.535898] lowmem_reserve[]: 0 0 0 0
Jan 4 17:11:06 ceph1 kernel: [756636.535902] Node 0 DMA: 34*4kB (M)
39*8kB (UEM) 85*16kB (UEM) 48*32kB (UEM) 30*64kB (UM) 1*128kB (M)
0*256kB 0*512kB 0*1024kB 1*2048kB (R) 0*4096kB = 7440kB
Jan 4 17:11:06 ceph1 kernel: [756636.535914] Node 0 DMA32: 15762*4kB
(UEM) 84*8kB (M) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB
0*2048kB 1*4096kB (R) = 67816kB
Jan 4 17:11:06 ceph1 kernel: [756636.535925] Node 0 hugepages_total=0
hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Jan 4 17:11:06 ceph1 kernel: [756636.535927] 222415 total pagecache
pages
Jan 4 17:11:06 ceph1 kernel: [756636.535928] 6842 pages in swap cache
Jan 4 17:11:06 ceph1 kernel: [756636.535930] Swap cache stats: add
196373, delete 189531, find 57898/74929
Jan 4 17:11:06 ceph1 kernel: [756636.535932] Free swap = 3508472kB
Jan 4 17:11:06 ceph1 kernel: [756636.535933] Total swap = 3859452kB
Jan 4 17:11:06 ceph1 kernel: [756636.535934] 482686 pages RAM
Jan 4 17:11:06 ceph1 kernel: [756636.535936] 0 pages
HighMem/MovableOnly
Jan 4 17:11:06 ceph1 kernel: [756636.535937] 11235 pages reserved
Jan 4 17:11:06 ceph1 kernel: [756636.535938] 0 pages hwpoisoned
Jan 4 17:11:06 ceph1 kernel: [756636.535943] ------------[ cut here
]------------
Jan 4 17:11:06 ceph1 kernel: [756636.535952] WARNING: CPU: 0 PID:
62644 at /build/linux-ax4Uh1/linux-3.16.7-ckt2/fs/btrfs/super.c:259
__btrfs_abort_transaction+0x5f/0x140 [btrfs]()
Jan 4 17:11:06 ceph1 kernel: [756636.535954] BTRFS: Transaction
aborted (error -12)
Jan 4 17:11:06 ceph1 kernel: [756636.535955] Modules linked in: nfsd
auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc loop evdev
x86_pkg_temp_thermal intel_powerclamp intel_rapl coretemp iTCO_wdt
iTCO_vendor_support kvm_intel kvm crct10dif_pclmul crc32_pclmul
ipmi_si ipmi_msghandler ghash_clmulni_intel cryptd thermal tg3 button
processor ptp thermal_sys pps_core ttm libphy drm_kms_helper psmouse
serio_raw pcspkr drm i2c_algo_bit ehci_pci i2c_core lpc_ich
acpi_power_meter ehci_hcd mfd_core hpilo hpwdt btrfs xor raid6_pq
sd_mod crc_t10dif crct10dif_common ahci libahci crc32c_intel libata
scsi_mod xhci_hcd uhci_hcd usbcore usb_common
Jan 4 17:11:06 ceph1 kernel: [756636.535991] CPU: 0 PID: 62644 Comm:
kworker/0:2 Not tainted 3.16.0-0.bpo.4-amd64 #1 Debian
3.16.7-ckt2-1~bpo70+1
Jan 4 17:11:06 ceph1 kernel: [756636.535993] Hardware name: HP
ProLiant MicroServer Gen8, BIOS J06 11/09/2013
Jan 4 17:11:06 ceph1 kernel: [756636.536002] Workqueue: events
do_async_commit [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.536004] 0000000000000000
ffffffffa01e1a28 ffffffff81541f8f ffff880004bdbbb8
Jan 4 17:11:06 ceph1 kernel: [756636.536007] ffffffff8106cecc
00000000fffffff4 ffff8800561b9800 ffff88005f2a8c00
Jan 4 17:11:06 ceph1 kernel: [756636.536009] 0000000000000536
ffffffffa01de080 ffffffff8106cfba ffffffffa01e1b08
Jan 4 17:11:06 ceph1 kernel: [756636.536012] Call Trace:
Jan 4 17:11:06 ceph1 kernel: [756636.536016] [<ffffffff81541f8f>] ?
dump_stack+0x41/0x51
Jan 4 17:11:06 ceph1 kernel: [756636.536021] [<ffffffff8106cecc>] ?
warn_slowpath_common+0x8c/0xc0
Jan 4 17:11:06 ceph1 kernel: [756636.536025] [<ffffffff8106cfba>] ?
warn_slowpath_fmt+0x4a/0x50
Jan 4 17:11:06 ceph1 kernel: [756636.536034] [<ffffffffa0134e0f>] ?
__btrfs_abort_transaction+0x5f/0x140 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.536045] [<ffffffffa01624b5>] ?
create_pending_snapshot+0x8c5/0xa00 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.536056] [<ffffffffa0162679>] ?
create_pending_snapshots+0x89/0xa0 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.536066] [<ffffffffa016394a>] ?
btrfs_commit_transaction+0x35a/0xa10 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.536070] [<ffffffff8107a88e>] ?
mod_timer+0x10e/0x220
Jan 4 17:11:06 ceph1 kernel: [756636.536080] [<ffffffffa016402a>] ?
do_async_commit+0x2a/0x40 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.536084] [<ffffffff810878fc>] ?
process_one_work+0x15c/0x450
Jan 4 17:11:06 ceph1 kernel: [756636.536088] [<ffffffff81088b52>] ?
worker_thread+0x112/0x540
Jan 4 17:11:06 ceph1 kernel: [756636.536092] [<ffffffff81088a40>] ?
create_and_start_worker+0x60/0x60
Jan 4 17:11:06 ceph1 kernel: [756636.536095] [<ffffffff8108f511>] ?
kthread+0xc1/0xe0
Jan 4 17:11:06 ceph1 kernel: [756636.536098] [<ffffffff8108f450>] ?
flush_kthread_worker+0xb0/0xb0
Jan 4 17:11:06 ceph1 kernel: [756636.536101] [<ffffffff815483bc>] ?
ret_from_fork+0x7c/0xb0
Jan 4 17:11:06 ceph1 kernel: [756636.536105] [<ffffffff8108f450>] ?
flush_kthread_worker+0xb0/0xb0
Jan 4 17:11:06 ceph1 kernel: [756636.536107] ---[ end trace
e977935ba9bc9ec6 ]---
Jan 4 17:11:06 ceph1 kernel: [756636.536112] BTRFS: error (device
sdb1) in create_pending_snapshot:1334: errno=-12 Out of memory
Jan 4 17:11:06 ceph1 kernel: [756636.536130] BUG: unable to handle
kernel NULL pointer dereference
Jan 4 17:11:06 ceph1 kernel: [756636.536130] BTRFS info (device
sdb1): forced readonly
Jan 4 17:11:06 ceph1 kernel: [756636.536134] BTRFS warning (device
sdb1): Skipping commit of aborted transaction.
Jan 4 17:11:06 ceph1 kernel: [756636.536135] BTRFS: error (device
sdb1) in cleanup_transaction:1577: errno=-12 Out of memory
Jan 4 17:11:06 ceph1 kernel: [756636.536137] BTRFS info (device
sdb1): delayed_refs has NO entry
Jan 4 17:11:06 ceph1 kernel: [756636.536188] at 000000000000045c
Jan 4 17:11:06 ceph1 kernel: [756636.536196] IP: [<ffffffffa016f90d>]
btrfs_orphan_cleanup+0x1d/0x420 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.536227] PGD 581c6067 PUD 30a70067
PMD 0
Jan 4 17:11:06 ceph1 kernel: [756636.536249] Oops: 0002 [#1] SMP
Jan 4 17:11:06 ceph1 kernel: [756636.536267] Modules linked in: nfsd
auth_rpcgss oid_registry nfs_acl nfs lockd fscache sunrpc loop evdev
x86_pkg_temp_thermal intel_powerclamp intel_rapl coretemp iTCO_wdt
iTCO_vendor_support kvm_intel kvm crct10dif_pclmul crc32_pclmul
ipmi_si ipmi_msghandler ghash_clmulni_intel cryptd thermal tg3 button
processor ptp thermal_sys pps_core ttm libphy drm_kms_helper psmouse
serio_raw pcspkr drm i2c_algo_bit ehci_pci i2c_core lpc_ich
acpi_power_meter ehci_hcd mfd_core hpilo hpwdt btrfs xor raid6_pq
sd_mod crc_t10dif crct10dif_common ahci libahci crc32c_intel libata
scsi_mod xhci_hcd uhci_hcd usbcore usb_common
Jan 4 17:11:06 ceph1 kernel: [756636.536587] CPU: 1 PID: 58876 Comm:
ceph-osd Tainted: G W 3.16.0-0.bpo.4-amd64 #1 Debian
3.16.7-ckt2-1~bpo70+1
Jan 4 17:11:06 ceph1 kernel: [756636.536627] Hardware name: HP
ProLiant MicroServer Gen8, BIOS J06 11/09/2013
Jan 4 17:11:06 ceph1 kernel: [756636.536652] task: ffff880000068150
ti: ffff88002e904000 task.ti: ffff88002e904000
Jan 4 17:11:06 ceph1 kernel: [756636.536688] RIP:
0010:[<ffffffffa016f90d>] [<ffffffffa016f90d>]
btrfs_orphan_cleanup+0x1d/0x420 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.536741] RSP:
0018:ffff88002e907bb8 EFLAGS: 00010296
Jan 4 17:11:06 ceph1 kernel: [756636.536764] RAX: 0000000000000000
RBX: fffffffffffffff4 RCX: ffff880049bd0278
Jan 4 17:11:06 ceph1 kernel: [756636.536800] RDX: 0000000000000001
RSI: 0000000000000283 RDI: fffffffffffffff4
Jan 4 17:11:06 ceph1 kernel: [756636.536836] RBP: 0000000000000000
R08: ffff88002e904000 R09: 0000000000000001
Jan 4 17:11:06 ceph1 kernel: [756636.536872] R10: 0000000000000000
R11: 0000000000000078 R12: ffff88004c224dd0
Jan 4 17:11:06 ceph1 kernel: [756636.536907] R13: ffff88004c224d28
R14: ffff880070639cc0 R15: ffff880070639ce8
Jan 4 17:11:06 ceph1 kernel: [756636.536944] FS:
00007f6eab2b8700(0000) GS:ffff880072e20000(0000)
knlGS:0000000000000000
Jan 4 17:11:06 ceph1 kernel: [756636.536981] CS: 0010 DS: 0000 ES:
0000 CR0: 0000000080050033
Jan 4 17:11:06 ceph1 kernel: [756636.537004] CR2: 000000000000045c
CR3: 000000005edd8000 CR4: 00000000001407e0
Jan 4 17:11:06 ceph1 kernel: [756636.537040] Stack:
Jan 4 17:11:06 ceph1 kernel: [756636.537060] ffff88004a365800
ffffffffa0164b60 ffff8800561b9d20 ffff880000068150
Jan 4 17:11:06 ceph1 kernel: [756636.537111] 0000000000000000
00ffffff00000000 ffff880000068150 ffffffff810b0120
Jan 4 17:11:06 ceph1 kernel: [756636.537162] ffff88002e907bf8
ffff88005f291d98 0000000000000000 ffff88004c224dd0
Jan 4 17:11:06 ceph1 kernel: [756636.537213] Call Trace:
Jan 4 17:11:06 ceph1 kernel: [756636.537245] [<ffffffffa0164b60>] ?
btrfs_commit_transaction_async+0xe0/0x230 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.537285] [<ffffffff810b0120>] ?
__wake_up_sync+0x20/0x20
Jan 4 17:11:06 ceph1 kernel: [756636.537320] [<ffffffffa0197b10>] ?
btrfs_mksubvol.isra.62+0x440/0x4f0 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.537357] [<ffffffff810b0120>] ?
__wake_up_sync+0x20/0x20
Jan 4 17:11:06 ceph1 kernel: [756636.537391] [<ffffffffa0197d7e>] ?
btrfs_ioctl_snap_create_transid+0x1be/0x1d0 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.537437] [<ffffffffa0197f35>] ?
btrfs_ioctl_snap_create_v2+0x115/0x150 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.537484] [<ffffffffa019b0db>] ?
btrfs_ioctl+0x10cb/0x1eb0 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.537519] [<ffffffffa0176062>] ?
btrfs_file_write_iter+0x1a2/0x560 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.537559] [<ffffffff811bb4db>] ?
new_sync_write+0x7b/0xb0
Jan 4 17:11:06 ceph1 kernel: [756636.537584] [<ffffffff811f7fac>] ?
fsnotify+0x1cc/0x260
Jan 4 17:11:06 ceph1 kernel: [756636.537609] [<ffffffff811cdee6>] ?
do_vfs_ioctl+0x86/0x4e0
Jan 4 17:11:06 ceph1 kernel: [756636.537633] [<ffffffff811bddcb>] ?
__sb_end_write+0x2b/0x70
Jan 4 17:11:06 ceph1 kernel: [756636.537658] [<ffffffff811bc326>] ?
vfs_write+0x196/0x1f0
Jan 4 17:11:06 ceph1 kernel: [756636.537682] [<ffffffff811ce3e1>] ?
SyS_ioctl+0xa1/0xc0
Jan 4 17:11:06 ceph1 kernel: [756636.537707] [<ffffffff8154846d>] ?
system_call_fast_compare_end+0x10/0x15
Jan 4 17:11:06 ceph1 kernel: [756636.537731] Code: bd 00 00 48 89 43
d0 eb c0 0f 1f 44 00 00 0f 1f 44 00 00 41 57 31 c0 ba 01 00 00 00 41
56 41 55 41 54 55 53 48 89 fb 48 83 ec 48 <f0> 0f b1 97 68 04 00 00 45
31 f6 85 c0 74 14 48 83 c4 48 44 89
Jan 4 17:11:06 ceph1 kernel: [756636.538053] RIP [<ffffffffa016f90d>]
btrfs_orphan_cleanup+0x1d/0x420 [btrfs]
Jan 4 17:11:06 ceph1 kernel: [756636.538102] RSP <ffff88002e907bb8>
Jan 4 17:11:06 ceph1 kernel: [756636.538122] CR2: 000000000000045c
Jan 4 17:11:06 ceph1 kernel: [756636.538543] ---[ end trace
e977935ba9bc9ec7 ]---
Thanks
-Jiri
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