Subject: CVS commit: syssrc
To: None <>
From: Michael L. Hitch <>
List: source-changes
Date: 12/02/1999 20:26:19
Module Name:	syssrc
Committed By:	mhitch
Date:		Fri Dec  3 04:26:18 UTC 1999

Modified Files:
	syssrc/sys/dev/tc: asc_ioasic.c

Log Message:
Fix IOASIC DMA alignment problems.  Buffers not aligned on doubleword (8
byte) boundaries don't work correctly.  Make use of the SDR0/SDR1 registers
to adjust the buffer alignment when starting the DMA transfer.  Block device
I/O done by the filesystems will usually be aligned correctly, but character
device I/O may not be aligned correctly.  This should fix the problems with
dump(8) failing randomly on DECstations.

To generate a diff of this commit:
cvs rdiff -r1.17 -r1.18 syssrc/sys/dev/tc/asc_ioasic.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.