[Ocfs-users] Re: Clarification on 1.0.14-1

[Sunil Mushran]

The bug had to do with non-contiguous aio+o_direct ios.
In 2.4, as raw is the only core kernel feature using o_direct, this
bug was never discovered, that's our theory, atleast. (By definition,
all ios on raw are contiguous).

We never filed a bug with rh/suse on this issue.

BTW, as this bug was known to cause on-disk corruptions, I am
not sure how you have linked this to your momentary freeze-ups.

1. How many logfile groups do you have?
2. Logfile sizes?
3. Kernel version?
4. Memory?
5. How did you determine the freezeup was during archiving?

Bruce Holzrichter wrote:

>Hello,
>
>I read these posts with interest, but I can't locate the specifics on
>the AIO kernel bugs your talking about.  Do you have any links/specifics
>on those issues you brought up?
>
>I am wondering if we are seeing behavior on one of our databases that
>could be related. 
>
>Our Database RAC node will cause the database to "freeze" momentarily when
>that node is archiving.  The DB archives to an Ext2 partition and the DB is OCFS.  
>
>Thanks
>Bruce H.
>_______________________________________________
>Ocfs-users mailing list
>Ocfs-users at oss.oracle.com
>http://oss.oracle.com/mailman/listinfo/ocfs-users
>  
>