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Bug #2506
closedceph: ceph_add_cap: couldn't find snap realm NNN
Status:
Resolved
Priority:
Normal
Assignee:
-
Category:
fs/ceph
Target version:
-
% Done:
0%
Source:
Community (user)
Tags:
Backport:
Regression:
Severity:
Reviewed:
Affected Versions:
ceph-qa-suite:
Crash signature (v1):
Crash signature (v2):
Description
From Martin Wilderoth on ML:
[ 1828.569091] ceph: ceph_add_cap: couldn't find snap realm 100 [ 1828.569105] ------------[ cut here ]------------ [ 1828.569121] WARNING: at /build/buildd-linux-2.6_3.2.17-1~bpo60+1-amd64-CJo7Ex/linux-2.6-3.2.17/debian/bu ild/source_amd64_none/fs/ceph/caps.c:590 ceph_add_cap+0x38e/0x49e [ceph]() [ 1828.569139] Modules linked in: cryptd aes_x86_64 aes_generic cbc ceph libceph crc32c libcrc32c evdev snd_pcm snd_timer snd soundcore snd_page_alloc pcspkr ext3 jbd mbcache xen_netfront xen_blkfront [ 1828.569182] Pid: 18, comm: kworker/0:1 Tainted: G W 3.2.0-0.bpo.2-amd64 #1 [ 1828.569193] Call Trace: [ 1828.569207] [<ffffffff810497ec>] ? warn_slowpath_common+0x78/0x8c [ 1828.569221] [<ffffffffa00db647>] ? ceph_add_cap+0x38e/0x49e [ceph] [ 1828.569233] [<ffffffffa00d220a>] ? fill_inode+0x4eb/0x602 [ceph] [ 1828.569244] [<ffffffffa00d331b>] ? ceph_dentry_lru_touch+0x2a/0x68 [ceph] [ 1828.569258] [<ffffffffa00d317d>] ? ceph_readdir_prepopulate+0x2de/0x375 [ceph] [ 1828.569271] [<ffffffffa00e2d3f>] ? dispatch+0xa35/0xef2 [ceph] [ 1828.569286] [<ffffffffa00ae841>] ? ceph_tcp_recvmsg+0x43/0x4f [libceph] [ 1828.569297] [<ffffffffa00b0821>] ? con_work+0x1070/0x13b8 [libceph] [ 1828.569308] [<ffffffff81044580>] ? update_curr+0xbc/0x160 [ 1828.569319] [<ffffffffa00af7b1>] ? try_write+0xbe1/0xbe1 [libceph] [ 1828.569332] [<ffffffff8105f8bb>] ? process_one_work+0x1cc/0x2ea [ 1828.569342] [<ffffffff8105fb06>] ? worker_thread+0x12d/0x247 [ 1828.569353] [<ffffffff8105f9d9>] ? process_one_work+0x2ea/0x2ea [ 1828.569361] [<ffffffff8105f9d9>] ? process_one_work+0x2ea/0x2ea [ 1828.569372] [<ffffffff81063311>] ? kthread+0x7a/0x82 [ 1828.569384] [<ffffffff8136bb34>] ? kernel_thread_helper+0x4/0x10 [ 1828.569395] [<ffffffff81369bf3>] ? int_ret_from_sys_call+0x7/0x1b [ 1828.569406] [<ffffffff813646fc>] ? retint_restore_args+0x5/0x6 [ 1828.569417] [<ffffffff8136bb30>] ? gs_change+0x13/0x13 [ 1828.569423] ---[ end trace 98770cddb79a6a55 ]---
Updated by Anonymous almost 12 years ago
Note that this was triggered frequently by backuppc runs:
http://thread.gmane.org/gmane.comp.file-systems.ceph.devel/6815/focus=6820
Updated by Sage Weil over 11 years ago
- Status changed from 12 to Resolved
Yan found this! by backuppc
Updated by Samuel Hassine over 11 years ago
Hi Ceph Dev team,
Same problem here, with the last version of Ceph kernel client and the 2 last kernel (linux-image-3.2.0-33-generic and linux-image-3.5.0-18-generic).
Kernel output:
Nov 28 00:37:49 proxy-001 kernel: [ 372.996428] ceph: ceph_add_cap: couldn't find snap realm 100 Nov 28 00:37:49 proxy-001 kernel: [ 372.996467] ------------[ cut here ]------------ Nov 28 00:37:49 proxy-001 kernel: [ 372.996475] WARNING: at /build/buildd/linux-lts-quantal-3.5.0/fs/ceph/caps.c:590 ceph_add_cap+0x3ea/0x3f0 [ceph]() Nov 28 00:37:49 proxy-001 kernel: [ 372.996476] Hardware name: Bochs Nov 28 00:37:49 proxy-001 kernel: [ 372.996477] Modules linked in: ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables x_tables c eph joydev libceph psmouse mac_hid i2c_piix4 microcode hid_generic lp virtio_balloon serio_raw parport usbhid hid floppy btrfs zlib_deflate libcrc32c Nov 28 00:37:49 proxy-001 kernel: [ 372.996493] Pid: 24, comm: kworker/0:1 Tainted: G W 3.5.0-18-generic #29~precise1-Ubuntu Nov 28 00:37:49 proxy-001 kernel: [ 372.996494] Call Trace: Nov 28 00:37:49 proxy-001 kernel: [ 372.996500] [<ffffffff81052c9f>] warn_slowpath_common+0x7f/0xc0 Nov 28 00:37:49 proxy-001 kernel: [ 372.996506] [<ffffffff81052cfa>] warn_slowpath_null+0x1a/0x20 Nov 28 00:37:49 proxy-001 kernel: [ 372.996524] [<ffffffffa01b0afa>] ceph_add_cap+0x3ea/0x3f0 [ceph] Nov 28 00:37:49 proxy-001 kernel: [ 372.996528] [<ffffffffa01a5cc7>] fill_inode.isra.8+0x697/0x770 [ceph] Nov 28 00:37:49 proxy-001 kernel: [ 372.996531] [<ffffffff8169e1ee>] ? _raw_spin_lock+0xe/0x20 Nov 28 00:37:49 proxy-001 kernel: [ 372.996535] [<ffffffffa01a5f72>] ceph_readdir_prepopulate+0x1d2/0x3d0 [ceph] Nov 28 00:37:49 proxy-001 kernel: [ 372.996539] [<ffffffffa01b9cc4>] handle_reply+0x394/0x510 [ceph] Nov 28 00:37:49 proxy-001 kernel: [ 372.996543] [<ffffffffa01bbeab>] dispatch+0xdb/0x180 [ceph] Nov 28 00:37:49 proxy-001 kernel: [ 372.996548] [<ffffffffa0184d24>] try_read+0x3d4/0x460 [libceph] Nov 28 00:37:49 proxy-001 kernel: [ 372.996564] [<ffffffffa0184db0>] ? try_read+0x460/0x460 [libceph] Nov 28 00:37:49 proxy-001 kernel: [ 372.996567] [<ffffffffa0184e2a>] con_work+0x7a/0x160 [libceph] Nov 28 00:37:49 proxy-001 kernel: [ 372.996571] [<ffffffff81071aea>] process_one_work+0x11a/0x480 Nov 28 00:37:49 proxy-001 kernel: [ 372.996573] [<ffffffff81072b05>] worker_thread+0x165/0x370 Nov 28 00:37:49 proxy-001 kernel: [ 372.996575] [<ffffffff810729a0>] ? manage_workers.isra.29+0x130/0x130 Nov 28 00:37:49 proxy-001 kernel: [ 372.996578] [<ffffffff81077aa3>] kthread+0x93/0xa0 Nov 28 00:37:49 proxy-001 kernel: [ 372.996580] [<ffffffff816a7d64>] kernel_thread_helper+0x4/0x10 Nov 28 00:37:49 proxy-001 kernel: [ 372.996582] [<ffffffff81077a10>] ? flush_kthread_worker+0xb0/0xb0 Nov 28 00:37:49 proxy-001 kernel: [ 372.996584] [<ffffffff816a7d60>] ? gs_change+0x13/0x13 Nov 28 00:37:49 proxy-001 kernel: [ 372.996585] ---[ end trace 360f9571ddaff772 ]---
Is this bug already solved or it will be in the next version?
Thanks for your answer.
Best regards.
Sam
Updated by Samuel Hassine over 11 years ago
Re,
Ceph version causes the kernel panics we are encountering:
root@proxy-001:/home/sysmastr# ceph -v ceph version 0.48.2argonaut (commit:3e02b2fad88c2a95d9c0c86878f10d1beb780bfe)
Best regards.
Sam
Updated by Sage Weil over 11 years ago
commit:3384431b6d889486d19d1a1543626fb1a2cff178, which appears in v0.55, should fix the 'snap realm 100' problem. Thanks!
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