ATA RAID problem in 6.0-RC1 (ata_alloc_request/ata_raid_init_request)

[Michael Butler]

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David Taylor wrote:
| ar0: 156334MB <Promise Fasttrak RAID1> status: READY
| ar0: disk0 READY (master) using ad6 at ata3-master
| ar0: disk1 READY (mirror) using ad4 at ata2-master

Ok - so the apparent kernel memory leak appears to be associated with
RAID-1. I have RAID-0+1 configured.

To confirm another observation of mine, do you see lots of allocated
memory blocks for the controller?, e.g.

imb at mail:/home/imb> sysctl -a | grep ^ata_
ata_composit:    192,        0,  69703,    117,   406336
ata_request:     200,        0, 139406,     73,  2106449
		(size)	(max.)	(used)	(avail)	(requests)

There appears to be a path through the ar driver which fails to free the
blocks recording the requests ..

	Michael
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