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Subjectkernel BUG at ll_rw_blk.c:1336 using RAW IO

I and ran into following BUG() while doing RAW IO (2.5.3-pre6).

kernel BUG at ll_rw_blk.c:1336

Actual code is:

BUG_ON(bio_sectors(bio) > q->max_sectors);

I am doing 64k IOs on QLOGIC SCSI controller/disks.
bio_sectors(bio) is 128
q->max_sectors is 64

Is this a QLOGIC driver bug ? I changed qlogicisp.c and set
host->max_sectors to 128. Now RAW IO seem to work fine. But
I get system hangs and filesystem gets corrupted. Any idea
on how to fix it ?

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