jhb 2006-07-17 19:45:47 UTC
FreeBSD src repository
Modified files:
sys/dev/amr amr.c
Log:
Chain the bus_dmamap_load() calls when mapping a command with a data CCB
instead of doing the first load with the BUS_DMA_NOWAIT flag. On 4.x with
PAE and > 4gb of RAM this proved disastrous if there weren't enough bounce
pages as amr_mapcmd() would return failure but the callback would later
fire once enough bounce pages were available and would then overwrite
another command's S/G list.
MFC after: 3 days
Submitted by: scottl (4.x version)
Reviewed by: scottl (port from 4.x to HEAD)
Revision Changes Path
1.79 +42 -24 src/sys/dev/amr/amr.c
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