[xfs-masters] [Bug 840] XFS internal error xfs_trans_cancel at line 1163 (debian lenny amd64)

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http://oss.sgi.com/bugzilla/show_bug.cgi?id=840





--- Comment #2 from bloodyscarion at gmail.com  2009-06-22 07:16:12 CST ---
(In reply to comment #1)
> Given that you are running LVM on an old kernel I suspect you were having write
> through caches enabled on the disks?  In that case any filesystem can't work
> reliably and you will get corruptions especially of the allocation btrees.

Thank you for the answer!

This is configuration of one of virtual disks on the controller:
ID                  : 0
Status              : Ok
Name                : Array0
State               : Ready
Progress            : Not Applicable
Layout              : RAID-5
Size                : 1,953.12 GB (2097149902848 bytes)
Device Name         : /dev/sdc
Type                : SAS
Read Policy         : Adaptive Read Ahead
Write Policy        : Write Back
Cache Policy        : Not Applicable
Stripe Element Size : 64 KB
Disk Cache Policy   : Disabled

As you can see I have disk cache disabled, but write policy is "Write Back". It
seems to be secure having controller battery installed:
http://support.dell.com/support/edocs/software/svradmin/5.1/en/omss_ug/html/cntrls.html#681536

Controller PERC 5/E Adapter (Slot 1)
ID                        : 0
Status                    : Ok
Name                      : Battery 0
State                     : Ready
Recharge Count            : Not Applicable
Max Recharge Count        : Not Applicable
Predicted Capacity Status : Ready
Learn State               : Idle
Next Learn Time           : 43 days 18 hours
Maximum Learn Delay       : 7 days 0 hours

Is it OK? 

Maybe I just should disable write caching completely?

Best regards,
Tomek Kruszona

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