lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Sun, 05 Aug 2007 09:54:51 +0200
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
CC:	Robert Hancock <hancockr@...w.ca>, linuxppc-dev@...abs.org,
	Olaf Hering <olh@...e.de>, stable@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.22.y] ieee1394: revert "sbp2: enforce 32bit DMA	mapping"

Benjamin Herrenschmidt wrote:
>>> If setting 32-bit DMA mask fails on ppc64, that sounds like a problem
>>> with the DMA implementation on that architecture. There are enough cards
>>> out there that only support 32-bit DMA that this really needs to work..
>> Yes, could the PPC folks please have a look at it?  Thanks.
> 
> Smells like we may have a bug there. No worries though, all current PPC
> machines have an iommu that will not give out addresses above 32 bits
> anyway, but I'll double check what's up.
> 
> Do you see something in dmesg when that happens ?

There was nothing in Olaf's report, except for trouble in sbp2 _after_
the failure.  http://lkml.org/lkml/2007/8/1/344  (I don't have a PMac.)
-- 
Stefan Richter
-=====-=-=== =--- --=-=
http://arcgraph.de/sr/
-
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