linux-kernel - Re: Linux 3.2.5

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Message-ID: <20120207112345.GA14427@citd.de>
Date:	Tue, 7 Feb 2012 12:23:45 +0100
From:	Matthias Schniedermeyer <ms@...d.de>
To:	Clemens Ladisch <clemens@...isch.de>
Cc:	Greg KH <gregkh@...uxfoundation.org>, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	torvalds@...ux-foundation.org
Subject: Re: Linux 3.2.5

On 07.02.2012 11:58, Matthias Schniedermeyer wrote:
> On 07.02.2012 11:19, Clemens Ladisch wrote:
> > Matthias Schniedermeyer wrote:
> > > On 06.02.2012 10:16, Greg KH wrote:
> > >> I'm announcing the release of the 3.2.5 kernel.
> > >>
> > >> It contains one PCI patch, it is up to you to decide to upgrade or not.
> > >
> > > This one makes my Soundblaster Live (alsa/emu10k1) silent.
> > > It is detected, i can e.g. change the mixer, but i can't hear any sound.
> > 
> > Back in the PCI days, the Emu10k1 chip was known to be quite inefficient
> > (many small transfers, and IIRC even latency timer bugs) and to be
> > problematic when used with other high-bandwidth PCI chips like TV capture
> > cards.
> > 
> > > There is a difference in syslog output regarding aspm, the emu10k1 line
> > > is the same.
> > 
> > Your PCIe/PCI bridge (5:0.0, iTE IT8892) which handles the PCI bus is
> > affected by the change.
> > 
> > I do not know if this is an actual hardware bug, or if the bridge is
> > just too slow to wake up the PCIe link.
> > 
> > Please show the output of "lspci -v -s 5:0".
> 
> With 3.2.4 running:
> lspci -v -s 5:0
> 05:00.0 PCI bridge: Integrated Technology Express, Inc. Device 8892 (rev 
> 10) (prog-if 00 [Normal decode])
>         Flags: bus master, fast devsel, latency 0
>         Bus: primary=05, secondary=06, subordinate=06, sec-latency=32
>         I/O behind bridge: 0000c000-0000cfff
>         Memory behind bridge: fbe00000-fbefffff
>         Capabilities: <access denied>

Ups. I did that with my user-account. Now with root:
lspci -v -s 5:0
05:00.0 PCI bridge: Integrated Technology Express, Inc. Device 8892 (rev 10) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=05, secondary=06, subordinate=06, sec-latency=32
        I/O behind bridge: 0000c000-0000cfff
        Memory behind bridge: fbe00000-fbefffff
        Capabilities: [70] Express PCI/PCI-X Bridge, MSI 00
        Capabilities: [90] Power Management version 2
        Capabilities: [a0] Subsystem: Gammagraphx, Inc. (or missing ID) Device 0000
        Capabilities: [100] Device Serial Number 00-00-00-00-00-00-00-00





Bis denn

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