Processed: Re: Bug#628444: Also in stable, now

2012-06-24 Thread Debian Bug Tracking System
Processing commands for cont...@bugs.debian.org:

 # um, no one tested the patch :(
 tags 628444 - patch
Bug #628444 [linux-2.6] linux-image-2.6.39-1-686-pae: iwlagn - MAC is in deep 
sleep, cannot restore wifi operation
Removed tag(s) patch.

End of message, stopping processing here.

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628444: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=628444
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Bug#628444: Also in stable, now

2012-06-09 Thread Martin Hardcastle
To add to my previous report: of the workrounds described above, the
11n_disable suggestion does absolutely nothing for me. However,
pcie_aspm=off as a boot option does greatly reduce the extent of the
problem. (Sadly it doesn't eliminate it completely -- I just had a
repeat of the problem apparently triggered by moving from mains to
battery power. But that's the first time in a week of use since I made
the change to the command line.)

I'd suggest therefore that the recent change to the kernel in stable
(which I believe to be the only plausible explanation for my
experience) is one that affects the PCIe power saving controlled by
this command line option.



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Bug#628444: Also in stable, now

2012-05-31 Thread Martin Hardcastle
Hi all

I'm running stable (squeeze), with the standard 2.6.32-5 kernel, on a
Lenovo Thinkpad X200 tablet; lspci says

03:00.0 Network controller: Intel Corporation Ultimate N WiFi Link 5300

and the module is iwlagn, obviously.

The machine has been running squeeze since it was released without any
problems. But in the last few days, I have started having very
frequent problems along the lines described.

May 31 06:12:32 rigel kernel: [ 1029.842353] ADDRCONF(NETDEV_CHANGE):
wlan0: link becomes ready
May 31 06:12:41 rigel kernel: [ 1038.685375] iwlagn :03:00.0:
iwl_tx_agg_start on ra = a0:21:b7:4d:3d:9c tid = 0
May 31 06:14:43 rigel kernel: [ 1161.316130] No probe response from AP
a0:21:b7:4d:3d:9c after 500ms, disconnecting.
May 31 06:14:43 rigel kernel: [ 1161.320094] iwlagn :03:00.0: MAC
is in deep sleep!.  CSR_GP_CNTRL = 0x
May 31 06:14:43 rigel kernel: [ 1161.320094] iwlagn :03:00.0: MAC
is in deep sleep!.  CSR_GP_CNTRL = 0x
[...]

At this point rmmod/modprobe do nothing at all, and the only solution
is a reboot. This particular one was on wakeup, but frequently it's in
the middle of normal use.

Nothing's changed with the hardware: I did have the keyboard off a few
weeks ago to remove a stuck stylus, but I don't think the timing is
quite right to suggest I unseated the card at that point; also, the
machine dual-boots into Windows, and I see no problems there, though I
use it much less. However, I do keep the system updated, and I seem to
recall that there was a new kernel *and firmware* version a little
while ago as part of the 6.0.5 release. That was on May 12, and my
problems started, according to the logs, after a reboot on May 14! I
post this in the hope that someone might have some insight as a result
of knowing what's changed in the latest stable release. In the
meantime, I am going to try some of the workrounds described in this
thread.

Cheers

Martin



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Bug#628444: Also in stable, now

2012-05-31 Thread Ben Hutchings
On Thu, 2012-05-31 at 07:03 +0100, Martin Hardcastle wrote:
[...]
 However, I do keep the system updated, and I seem to
 recall that there was a new kernel *and firmware* version a little
 while ago as part of the 6.0.5 release.
[...]

There was no change to any firmware or to this driver in the 6.0.5
release.

Ben.

-- 
Ben Hutchings
The obvious mathematical breakthrough [to break modern encryption] would be
development of an easy way to factor large prime numbers. - Bill Gates


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Bug#628444: Also in stable, now

2012-05-31 Thread Martin Hardcastle
On 31 May 2012 14:12, Ben Hutchings b...@decadent.org.uk wrote:
 There was no change to any firmware or to this driver in the 6.0.5
 release.

So what's your explanation for the problem appearing immediately after
the 6.0.5 release was installed? Just coincidence? I'm not trying to
make any point in particular, just curious.

Anyway, as the problem is now present in stable as well, I hope
someone can find a fix. It makes the machine pretty much unusable for
its intended purpose.

Cheers

Martin



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Bug#628444: Also in stable, now

2012-05-31 Thread Ben Hutchings
On Thu, May 31, 2012 at 06:15:53PM +0100, Martin Hardcastle wrote:
 On 31 May 2012 14:12, Ben Hutchings b...@decadent.org.uk wrote:
  There was no change to any firmware or to this driver in the 6.0.5
  release.
 
 So what's your explanation for the problem appearing immediately after
 the 6.0.5 release was installed? Just coincidence? I'm not trying to
 make any point in particular, just curious.

You rebooted.  Problems often show up after a reboot.

 Anyway, as the problem is now present in stable as well, I hope
 someone can find a fix. It makes the machine pretty much unusable for
 its intended purpose.

I don't think it's been established that the problem you're seeing
is the same as the one reported here.  In general there is not a
one-to-one mapping of error messages to bugs.

Ben.

-- 
Ben Hutchings
We get into the habit of living before acquiring the habit of thinking.
  - Albert Camus



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Bug#628444: Also in stable, now

2012-05-31 Thread Martin Hardcastle
On 31 May 2012 18:42, Ben Hutchings b...@decadent.org.uk wrote:
 You rebooted.  Problems often show up after a reboot.

Yeah: just to provide some additional information, I had actually
rebooted the machine on previous occasions since first installing
stable without this problem showing up.

 I don't think it's been established that the problem you're seeing
 is the same as the one reported here.

OK: what information would you suggest I try to obtain in order to
establish that?

Martin



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