linux-kernel - Re: [alsa-devel] [regression] 2.6.25-rc4 snd-es18xx broken on Alpha

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] [day] [month] [year] [list]

Date:	Sun, 30 Mar 2008 17:09:56 -0500 (CDT)
From:	rct@...s.com (Bob Tracy)
To:	Rene Herman <rene.herman@...access.nl>
CC:	Bob Tracy <rct@...s.com>, Michael Cree <mcree@...on.net.nz>,
	Takashi Iwai <tiwai@...e.de>,
	ALSA devel <alsa-devel@...a-project.org>,
	linux-kernel@...r.kernel.org,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	linux-alpha@...r.kernel.org, Krzysztof Helt <krzysztof.h1@...pl>
Subject: Re: [alsa-devel] [regression] 2.6.25-rc4 snd-es18xx broken on Alpha

Rene Herman wrote:
> Okay, thought I'd stare at this thing a bit -- there's no specific 1888 
> documentation available it seems but I did notice something in the 1878 
> datasheet which might mean something. The docs says that bits 0-1 are don't 
> care for DMA but don't for IRQ, so could it possibly be as simple as the 
> attached?
> 
> 1878 sheet doesn't document register 0x7f, it seems...
> 
> Assuming it's not just this, this thing is going to require quite a bit of 
> trial and error and without the hardware this will be troublesome. I expect 
> this is not it, since the arch init code also doesn't care about bit 0 when 
> setting that same register for IRQ 5.
> 
> If this is not it -- I'd try s/0x50/0x10/ in that line, even completely 
> commenting out the IRQ setting line (with the arch code built in) and just 
> generally frolic around 'till something blows up...
>
> (es18xx_trial_and_error)

As distributed, no change: still not seeing any activity on IRQ 5.  I'll
play around with it some over the next day or so.

Observed: the alsa "snd-sb8" driver works fine.  Question: how does IRQ
setup differ between the sb8 and the es18xx drivers?  If I can find some
time, I'll try to figure that out...

-- 
------------------------------------------------------------------------
Bob Tracy          |  "I was a beta tester for dirt.  They never did
rct@...s.com       |   get all the bugs out." - Steve McGrew on /.
------------------------------------------------------------------------
--
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/