From: Loic Dachary <loic@dachary.org>
To: Ilya Dryomov <idryomov@gmail.com>
Cc: Ceph Development <ceph-devel@vger.kernel.org>
Subject: understanding partprobe failure
Date: Thu, 17 Dec 2015 13:19:14 +0100 [thread overview]
Message-ID: <5672A842.1030103@dachary.org> (raw)
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Hi Ilya,
I'm seeing a partprobe failure right after a disk was zapped with sgdisk --clear --mbrtogpt -- /dev/vdb:
partprobe /dev/vdb failed : Error: Partition(s) 1 on /dev/vdb have been written, but we have been unable to inform the kernel of the change, probably because it/they are in use. As a result, the old partition(s) will remain in use. You should reboot now before making further changes.
waiting 60 seconds (see the log below) and trying again succeeds. The partprobe call is guarded by udevadm settle to prevent udev actions from racing and nothing else goes on in the machine.
Any idea how that could happen ?
Cheers
2015-12-17 11:46:10,356.356 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:DEBUG:ceph-disk:get_dm_uuid /dev/vdb uuid path is /sys/dev/block/253:16/dm/uuid
2015-12-17 11:46:10,357.357 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:DEBUG:ceph-disk:Zapping partition table on /dev/vdb
2015-12-17 11:46:10,358.358 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:INFO:ceph-disk:Running command: /usr/sbin/sgdisk --zap-all -- /dev/vdb
2015-12-17 11:46:10,365.365 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:Caution: invalid backup GPT header, but valid main header; regenerating
2015-12-17 11:46:10,366.366 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:backup header from main header.
2015-12-17 11:46:10,366.366 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:
2015-12-17 11:46:10,366.366 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:Warning! Main and backup partition tables differ! Use the 'c' and 'e' options
2015-12-17 11:46:10,367.367 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:on the recovery & transformation menu to examine the two tables.
2015-12-17 11:46:10,367.367 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:
2015-12-17 11:46:10,367.367 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:Warning! One or more CRCs don't match. You should repair the disk!
2015-12-17 11:46:10,368.368 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:
2015-12-17 11:46:11,413.413 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:****************************************************************************
2015-12-17 11:46:11,414.414 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:Caution: Found protective or hybrid MBR and corrupt GPT. Using GPT, but disk
2015-12-17 11:46:11,414.414 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:verification and recovery are STRONGLY recommended.
2015-12-17 11:46:11,414.414 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:****************************************************************************
2015-12-17 11:46:11,415.415 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:Warning: The kernel is still using the old partition table.
2015-12-17 11:46:11,415.415 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:The new table will be used at the next reboot.
2015-12-17 11:46:11,416.416 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:GPT data structures destroyed! You may now partition the disk using fdisk or
2015-12-17 11:46:11,416.416 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:other utilities.
2015-12-17 11:46:11,416.416 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:INFO:ceph-disk:Running command: /usr/sbin/sgdisk --clear --mbrtogpt -- /dev/vdb
2015-12-17 11:46:12,504.504 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:Creating new GPT entries.
2015-12-17 11:46:12,505.505 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:Warning: The kernel is still using the old partition table.
2015-12-17 11:46:12,505.505 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:The new table will be used at the next reboot.
2015-12-17 11:46:12,505.505 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:The operation has completed successfully.
2015-12-17 11:46:12,506.506 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:DEBUG:ceph-disk:Calling partprobe on zapped device /dev/vdb
2015-12-17 11:46:12,507.507 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:INFO:ceph-disk:Running command: /usr/bin/udevadm settle --timeout=600
2015-12-17 11:46:15,427.427 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:INFO:ceph-disk:Running command: /usr/sbin/partprobe /dev/vdb
2015-12-17 11:46:16,860.860 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:DEBUG:ceph-disk:partprobe /dev/vdb failed : Error: Partition(s) 1 on /dev/vdb have been written, but we have been unable to inform the kernel of the change, probably because it/they are in use. As a result, the old partition(s) will remain in use. You should reboot now before making further changes.
2015-12-17 11:46:16,860.860 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:(ignored, waiting 60s)
2015-12-17 11:47:16,925.925 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:INFO:ceph-disk:Running command: /usr/bin/udevadm settle --timeout=600
2015-12-17 11:47:19,681.681 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:INFO:ceph-disk:Running command: /usr/sbin/partprobe /dev/vdb
2015-12-17 11:47:20,125.125 INFO:tasks.workunit.client.0.target167114233028.stderr:DEBUG:CephDisk:INFO:ceph-disk:Running command: /usr/bin/udevadm settle --timeout=600
--
Loïc Dachary, Artisan Logiciel Libre
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next reply other threads:[~2015-12-17 12:19 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-17 12:19 Loic Dachary [this message]
2015-12-17 15:49 ` understanding partprobe failure Ilya Dryomov
2015-12-17 23:23 ` Loic Dachary
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