[LU-3716] mds-survey ASSERTION( lu_device_is_mdt(o->lo_dev) )

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.7.0
• Affects Version/s: Lustre 2.4.0, Lustre 2.5.1
• Labels: HB llnl server zfs
• Severity: 3
• Assignee: Jian Yu
• Reporter: Brian Behlendorf

Description

Observed fairly repeatably when running mds-survey.sh after the first few million creates. It appears unlikely to occur when creating less than 100,00 objects (the default).

2013-08-06 15:05:51 LustreError: 4379:0:(mdt_handler.c:2352:mdt_obj()) ASSERTION( lu_device_is_mdt(o->lo_dev) ) failed:
2013-08-06 15:05:51 LustreError: 4379:0:(mdt_handler.c:2352:mdt_obj()) LBUG

The failures where observed with code post 2.4.0 which includes the LU-2758 fix.

Comments

[Gerrit Updater]

Jian Yu ([e-mail]) uploaded a new patch: http://review.whamcloud.com/13530
Subject: LU-3716 obdecho: create a separate root object for echo access
Project: fs/lustre-release
Branch: b2_5
Current Patch Set: 1
Commit: 9a208e3e205a1a31b2773893f8333dbc275e0e6e

[Peter Jones]

Landed for 2.7

[Gerrit Updater]

Oleg Drokin ([e-mail]) merged in patch http://review.whamcloud.com/10130/
Subject: LU-3716 obdecho: create a separate root object for echo access
Project: fs/lustre-release
Branch: master
Current Patch Set:
Commit: 897580eb1562e0509bbe8ea72a273ed71f878eaa

[Jian Yu]

Can this patch be rebased?

Sure, will do.

[Doug Oucharek (Inactive)]

Can this patch be rebased?

[Jian Yu]

Patch for master branch: http://review.whamcloud.com/10130