Filesystem hang on 3ware 6.2 system

[Kostik Belousov]

On Wed, Jan 31, 2007 at 02:24:35AM -0500, Michael R. Wayne wrote:
> We have a nubmer of similar machines that were initiallly formated
> with 6.2 before it was released and have subsequently been upgraded
> to 6.2-RELEASE with no issues.  So, we upgraded a 6.1 box which has
> been running fine as long as the nightly dumps do not use -L to
> take snapshots.
> 
> Once it was upgraded to 6.2, we enabled -L on the nightly dumps and
> it hung on the first try.  So, I'm suspecting that 6.1 has left
> SOMEthing on the filesystem which is corrupt.  For the moment. we
> have once again removed -L from the nightly dumps but, other than
> a complete fsck, is there any other suggested action?
> 
> 6.2-RELEASE
> twe0: <3ware Storage Controller. Driver version 1.50.01.002> port 0x9c00-0x9c0f mem 0xfc9ffc00-0xfc9ffc0f,0xfc000000-0xfc7fffff irq 20 at device 1.0 on pci2
> twe0: [GIANT-LOCKED]
> twe0: 2 ports, Firmware FE8S 1.05.00.068, BIOS BE7X 1.08.00.048

See kernel deadlock debugging chapter from the developer handbook for
instructions on how to properly report deadlock.
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