[LU-1822] kernel warning messages on SP2 kernel, simple_setattr()

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.4.0
• Affects Version/s: Lustre 2.2.0
• Labels: patch
• Environment: patch-less client with kernel newer than 2.6.34
• Severity: 3
• Assignee: WC Triage
• Reporter: Michael McKay (Inactive)

Description

Based on LU-1153 this issue is only happening on a client that is running with kernel version 2.6.38.2. In kernel version 2.6.34 the following change was made: http://git.linaro.org/gitweb?p=bsp/st-ericsson/linux-2.6.34-ux500.git;a=commitdiff;h=eef2380c187890816b73b1a4cb89a09203759469

This kernel change added the WARN_ON_ONCE call if the object was truncated. I am in the process of configuring a client to be able to reproduce the issue. The check-in notification implies that we should be using our own version of the setattr in these cases, but I still need to investigate further.