Michael Kiermaier, the way to make the issue go away permanent is to
determine why disabling power management is necessary in the first
place.
Hence, to keep this relevant to upstream, one would want to periodically
check for, and test the latest mainline kernel (now 4.10) as it is
released.
Christopher M. Penalver,
on 2)
The problem does not occur after
sudo iw dev X set power_save off
What's the best way to make this permament?
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[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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** Tags removed: kernel-bug-exists-upstream-4.9
** Tags added: kernel-bug-exists-upstream-4.7
** Tags added: needs-bisect
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Title:
iwl4965
Christopher M. Penalver,
thank you.
1) will need some time as I don't remember when exactly the problem has started.
I see that you added the tag "kernel-bug-exists-upstream-4.9". To make sure: I
didn't experience the reported problem on 4.9. Simply because I cannot boot
into it due to a kernel
Michael Kiermaier, to clarify:
1) If you boot into a Ubuntu kernel from 3 months ago when this problem didn't
happen, is it still reproducible? Please advise which version specifically.
2) Does disabling power management provide a WORKAROUND via:
sudo iw dev X set power_save off
Where X is the
Christopher M. Penalver, as written, I've tested 4.9-rc5 a few weeks ago
**and 4.9 today**.
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Title:
iwl4965 crashes randomly
To manage
Michael Kiermaier, to advise, 4.9-rc5 isn't 4.9.
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Title:
iwl4965 crashes randomly
To manage notifications about this bug go to:
Christopher M. Penalver, I continued testing:
4.8.15-040815-generic gives a kernel panic at boot, too.
4.7.10-040710-generic boots just fine, but the original Problem is still there
(WLAN not working after some while).
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Christopher M. Penalver, I had tested 4.9-r5, which gives a kernel panic at
boot. Now I've tested the latest mainline kernel 4.9. Kernel panic at boot, too.
How should I proceed?
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Keri Alleyne, it will help immensely if you filed a new report with the Ubuntu
repository kernel (not mainline/upstream) via a terminal:
ubuntu-bug linux
Please feel free to subscribe me to it.
For more on why this is helpful, please see
https://wiki.ubuntu.com/ReportingBugs.
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Michael Kiermaier, to keep this relevant to upstream, one would want
check for, and test the latest mainline kernel (now 4.9) as it is
released.
Could you please advise?
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@Christopher M. Penalver:
The newest kernel 4.9-rc5-generic gives a kernel panic at boot.
"stack guard page was hit at ..."
What to do now?
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I believe that this bug also affects me. I seem to be experiencing
random WLAN failures on a Panasonic CF-52 laptop. The WLAN usually
recovers automatically but not always. There appear to be multiple
iwl4965 error messages in dmesg similar to those observed by the
original poster. I can include
Michael Kiermaier, thank you for reporting this and helping make Ubuntu
better.
In order to allow additional upstream developers to examine the issue, at your
earliest convenience, could you please test the latest upstream kernel
available from
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Importance: High => Critical
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Title:
iwl4965
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