[<prev] [next>] [day] [month] [year] [list]
Message-Id: <20070424220146.2EA64DBA1@gherkin.frus.com>
Date: Tue, 24 Apr 2007 17:01:46 -0500 (CDT)
From: rct@...rkin.frus.com (Bob Tracy)
To: linux-kernel@...r.kernel.org
CC: linux-scsi@...r.kernel.org
Subject: old ISA DMA bug in 2.6.12?
I was enjoying yet another session of beating my head against the wall
trying to do useful things with old hardware :-), and managed to cause a
kernel panic by simply trying to mount a cdrom in the context of a DSL-N
installation.
The SCSI host adapter is an Adaptec AHA-1542B, and when I try to mount a
cdrom, I manage to run afoul of the BAD_DMA() check in aha1542.c: the
buffer returned is not in the lower 16 MB of memory.
The same 2.6.12 kernel + hardware combination works fine as long as I
confine my I/O to the hard disk that's also attached to the AHA-1542B.
--
-----------------------------------------------------------------------
Bob Tracy WTO + WIPO = DMCA? http://www.anti-dmca.org
rct@...s.com
-----------------------------------------------------------------------
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists