Thats a relief.
Thank you Ilya
On 12/12/2017 04:57 PM, Ilya Dryomov wrote:
On Tue, Dec 12, 2017 at 8:18 PM, fcid <fcid@xxxxxxxxxxx> wrote:
Hello everyone,
We had an incident regarding a client which reboot after experiencing some
issues with a ceph cluster.
The other clients who consume RBD images from the same ceph cluster showed
and error at the time of the reboot in logs related to libceph.
The errors looks like this:
Dec 10 21:29:52 xxxx kernel: [5830277.680860] WARNING: CPU: 15 PID: 8113 at
net/ceph/osd_client.c:490 request_reinit+0x141/0x180 [libceph]
Dec 10 21:29:52 xxxx kernel: [5830277.691032] Modules linked in:
nfnetlink_queue bluetooth ocfs2 quota_tree binfmt_misc tcp_diag inet_diag
veth ip_set ip6table_filter ip6_tables xt_nat xt_tcpudp xt_multiport
xt_conntrack xt_addrtype iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4
nf_nat_ipv4 nf_nat nf_conntrack rbd libceph ocfs2_dlmfs ocfs2_stack_o2cb
ocfs2_dlm ocfs2_nodemanager ocfs2_stackglue bonding softdog iptable_filter
nfnetlink_log nfnetlink intel_rapl sb_edac edac_core x86_pkg_temp_thermal
intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul
crc32_pclmul ipmi_ssif ghash_clmulni_intel pcbc ast ttm aesni_intel
aes_x86_64 drm_kms_helper crypto_simd glue_helper snd_pcm cryptd drm
snd_timer snd fb_sys_fops intel_cstate syscopyarea input_leds soundcore
joydev sysfillrect intel_rapl_perf sysimgblt mei_me pcspkr mei ioatdma
Dec 10 21:29:52 xxxx kernel: [5830277.765547] lpc_ich shpchp wmi ipmi_si
ipmi_devintf ipmi_msghandler nfit acpi_pad acpi_power_meter mac_hid
vhost_net vhost macvtap macvlan ib_iser rdma_cm iw_cm ib_cm ib_core configfs
iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi sunrpc ip_tables
x_tables autofs4 raid10 raid456 async_raid6_recov async_memcpy async_pq
async_xor async_tx xor raid6_pq libcrc32c raid0 multipath linear raid1
hid_generic usbkbd usbmouse usbhid hid igb ixgbe i2c_algo_bit dca ptp ahci
pps_core i2c_i801 libahci mdio fjes [last unloaded: quota_tree]
Dec 10 21:29:52 xxxx kernel: [5830277.816275] CPU: 15 PID: 8113 Comm:
kworker/15:0 Tainted: G W 4.10.17-1-pve #1
Dec 10 21:29:52 xxxx kernel: [5830277.825564] Hardware name: Supermicro
SYS-1028U-TR4T+/X10DRU-i+, BIOS 2.0c 04/21/2017
Dec 10 21:29:52 xxxx kernel: [5830277.834272] Workqueue: events
handle_timeout [libceph]
Dec 10 21:29:52 xxxx kernel: [5830277.840307] Call Trace:
Dec 10 21:29:52 xxxx kernel: [5830277.843620] dump_stack+0x63/0x81
Dec 10 21:29:52 xxxx kernel: [5830277.847846] __warn+0xcb/0xf0
Dec 10 21:29:52 xxxx kernel: [5830277.851758] warn_slowpath_null+0x1d/0x20
Dec 10 21:29:52 xxxx kernel: [5830277.856798] request_reinit+0x141/0x180
[libceph]
Dec 10 21:29:52 xxxx kernel: [5830277.862403] handle_timeout+0x307/0x5b0
[libceph]
Dec 10 21:29:52 xxxx kernel: [5830277.868116] process_one_work+0x1fc/0x4b0
Dec 10 21:29:52 xxxx kernel: [5830277.873069] worker_thread+0x4b/0x500
Dec 10 21:29:52 xxxx kernel: [5830277.877561] kthread+0x109/0x140
Dec 10 21:29:52 xxxx kernel: [5830277.881720] ?
process_one_work+0x4b0/0x4b0
Dec 10 21:29:52 xxxx kernel: [5830277.886851] ?
kthread_create_on_node+0x60/0x60
Dec 10 21:29:52 xxxx kernel: [5830277.892323] ret_from_fork+0x2c/0x40
Dec 10 21:29:52 xxxx kernel: [5830277.896939] ---[ end trace
afd30825d5ecd451 ]---
I wonder if this is a bug in KRBD.
This warning indicates a fairly minor issue in the internals of the
kernel client that should be safe to ignore. request_reinit function
isn't used anywhere in the data or other critical paths.
Thanks,
Ilya
--
Fernando Cid O.
Ingeniero de Operaciones
AltaVoz S.A.
http://www.altavoz.net
Viña del Mar, Valparaiso:
2 Poniente 355 of 53
+56 32 276 8060
Santiago:
San Pío X 2460, oficina 304, Providencia
+56 2 2585 4264
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