[PATCH] Fix for 3ware driver

[Harald Schmalzbauer]

Am Montag, 3. Mai 2004 16:09 schrieb Scott Long:
> All,
>
> Release testing has shown several recent problems with the 3ware (twe)
> driver.  Attached is a patch that appears to fix these problems.  I
> would appreciate as much testing as possible before I commit so that I
> can be sure that all of the problems are caught and fixed correctly.
> The patch applies to both RELENG_4_10 and RELENG_4 branches.  Symptoms
> of the problems included i/o hangs under heavy load and filesystem
> corruption.

Is it possible/advisable for me to try this patch against -current?
I have symptoms where the controler LED is on, the system shows me constant 
transfer to (or from) the disk with about 4MB/s and a disk utilization of 
99%, but no single bit goes over the wire and there's also no other process 
which could cause disk activity (also not swapping!).
This happens when I transfer large files over NFS to the server (with the 
3ware). I thought it was NFS but nobody on -current beliefed my description 
and a buggy 3ware driver could be a possible explanation for this very 
strange bug.
But o.t.o.h the system was full usable, just NFS locked up.

Thank you,

-Harry

>
> Thanks,
>
> Scott
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