linux-kernel - Re: [PATCH 1/3] Make the IDE DMA timeout modifiable

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]

Message-ID: <466EEFD6.9030001@ru.mvista.com>
Date:	Tue, 12 Jun 2007 23:11:18 +0400
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Cc:	Suleiman Souhlal <ssouhlal@...ebsd.org>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] Make the IDE DMA timeout modifiable

Bartlomiej Zolnierkiewicz wrote:
>>On Feb 20, 2007, at 5:44 PM, Bartlomiej Zolnierkiewicz wrote:

>>>On Wednesday 21 February 2007 02:19, Suleiman Souhlal wrote:

>>>>It can be changed via /proc/ide/hd?/settings.

>>>Why do we need to change IDE DMA timeout dynamically?

>>I've used it to test error recovery (for example).

> Seems quite useable for developers but I would prefer not to
> expose it in production kernels for end users.

    It seems that I have counter example of a customer asking if this timeout 
can be done configurable. :-)
    BTW, why the timeout is so damn long? 2*WAIT_CMD is 20 secs, and if DMA is 
not complete or interrupt pending, it may wait 10 more secs...

> Thanks,
> Bart

MBR, Sergei
-
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/