[LU-870] Console message: "is it ok to have flags 0x420 and 0x5a8 in the same brw?"

• Status: Resolved
• Project: Lustre
• Type: Bug
• Priority: Minor
• Reporter: Christopher Morrone
• Assignee: Zhenyu Xu
• Resolution: Duplicate

Environment

2.1.0-12chaos, https://github.com/chaos/lustre

• Severity: 3

Description

We are seeing frequent messages like this:

Nov 21 12:20:58 hype352 kernel: LustreError: 7689:0:(osc_request.c:1229:can_merge_pages()) is it ok to have flags 0x420 and 0x5a8 in the same brw?

on the console of 2.1 lustre clients. That is a pretty terrible console message. One way or another we need to eliminate it.

If it is a problem, we need to fix whatever is going one. If there is no problem, the message needs to be removed from the console.

Comments

[Andreas Dilger]

The flags that are different appear to be:

0x100 = OBD_BRW_NOQUOTA
0x080 = OBD_BRW_NOCACHE
0x008 = OBD_BRW_SYNC

There was a patch recently merged to master to address OBD_BRW_NOQUOTA issue from LU-651:

http://review.whamcloud.com/1328

The other flags are already excluded in 2.1.

[Andreas Dilger]

Closing this as a duplicate of LU-651. It looks like the referenced patch is not the correct way to resolve this issue.