DragonFly bugs List (threaded) for 2009-04
DragonFly BSD
DragonFly bugs List (threaded) for 2009-04
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Re: Hammer, usb disk, SYNCHRONIZE CACHE failure


From: Joe Talbott <josepht@xxxxxxxxxx>
Date: Wed, 8 Apr 2009 14:13:08 -0400
Mail-followup-to: Matthew Dillon <dillon@apollo.backplane.com>, bugs@crater.dragonflybsd.org

On Wed, Apr 08, 2009 at 10:23:09AM -0700, Matthew Dillon wrote:
> 
> :This is for 2.2-RELEASE.  I have a 2.5" drive in an external USB
> :enclosure with one big Hammer filesystem on it.  The disk is ~75GB.
> :When the daily cronjob to cleanup hammer runs it fails with these
> :errors:
> :
> :Thanks,
> :Joe
> 
>     I'm not sure what's going on here.  HAMMER does issue a synchronize cache
>     op but it should be ignoring the error.  Maybe the recovery from the 
>     unsupported synchronize cache op is causing a later write op to fail.
> 

I updated to 2.3-DEVELOPMENT and now the machine hangs at this point.
I get nothing on the serial console.  No network connectivity.  No
core dump either.  I can give you access to the machine or provide any
information you may need.

I also tried adding a quirk to scsi_da.c for my device but still get
the hang.

I can't rule out flaky hardware at this point either.

Joe



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