kernel-packages team mailing list archive

[Darren Peets <1436891@xxxxxxxxxxxxxxxxxx>]

OK, bisect result and a caveat:

d88c8958dc13b4e4eb7fc57e3f06dc1c4abc7b1f is the first bad commit
commit d88c8958dc13b4e4eb7fc57e3f06dc1c4abc7b1f
Author: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
Date:   Mon Sep 1 09:50:14 2014 +0300

    iwlwifi: bump firmware API version to 10 for 7000 and 8000

    New firmware on the way.

    Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>

:040000 040000 6fda9a82d01a59a4edeaee8d1fbeb2cce28eeecc
7b61151b4783bc2f3ae31a132fa36c80a84cb978 M      drivers


Now, what I tried to do during the bisect was the following:
$ cp /boot/config-3.19.0-14-generic .config
$ make oldconfig
$ make clean
$ make -j `getconf _NPROCESSORS_ONLN` deb-pkg LOCALVERSION=-dpeets??
for ?? an increasing integer, and accepting all default settings for make oldconfig

HOWEVER,  for a vast expanse in the middle of this bisect range, building the kernel image failed if started from the 3.19 config file (here's one example):
...
  INSTALL debian/tmp/lib/firmware/cpia2/stv0672_vp4.bin
  INSTALL debian/tmp/lib/firmware/yam/1200.bin
  INSTALL debian/tmp/lib/firmware/yam/9600.bin
  DEPMOD  3.16.0-dpeets22
depmod: ERROR: Found 5 modules in dependency cycles!
depmod: ERROR: Cycle detected: st21nfcb -> ndlc -> nci -> st21nfcb
depmod: ERROR: Cycle detected: nci -> nci
Makefile:1113: recipe for target '_modinst_post' failed
make[2]: *** [_modinst_post] Error 1
scripts/package/Makefile:90: recipe for target 'deb-pkg' failed
make[1]: *** [deb-pkg] Error 2
Makefile:1205: recipe for target 'deb-pkg' failed
make: *** [deb-pkg] Error 2

I'm not in a position to do anything other than accept the defaults, and
I'm not about to edit the config file on my own.  So for perhaps half of
the bisect steps, the starting point for .config was the previous bisect
step's .config (without first checking whether a copied 3.19 version
worked), or in a couple cases a config file from a known good 3.16
kernel after the 3.19 config file failed.  This means that the starting
point was not necessarily the same for all steps.

If there are parts of this I should redo or check, config files you'd
like (I didn't save them in general, but I have a few), or anything I
can test, let me know.

-- 
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https://bugs.launchpad.net/bugs/1436891

Title:
  Cannot connect to any WiFi access point which runs wireless-N

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  When attempting to connect to a WiFi access point with N wireless, two popup messages appear:
  Connection 'SSID' deactivated.
  The WiFi network could not be found

  Expected behaviour:  Connects to network.

  Minimal demonstration:  connect to a WiFi access point by both LAN and
  WiFi B/G.  Log in to access point, change it to B/G/N.  Connection is
  lost, cannot be re-established until reverted to B/G.

  Previous troubleshooting located here:
  https://www.kubuntuforums.net/showthread.php?67556-Can-t-use-wifi

  Description:    Ubuntu Vivid Vervet (development branch)
  Release:        15.04
  linux-firmware 1.143

  Can connect normally (with N) from 14.04.2 and 14.10 live CDs.  Can
  connect in 15.04 if and only if N deactivated in access point.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: linux-firmware 1.143
  ProcVersionSignature: Ubuntu 3.19.0-10.10-generic 3.19.2
  Uname: Linux 3.19.0-10-generic x86_64
  ApportVersion: 2.16.2-0ubuntu4
  Architecture: amd64
  CurrentDesktop: KDE
  Date: Fri Mar 27 00:14:58 2015
  Dependencies:
   
  InstallationDate: Installed on 2015-03-04 (22 days ago)
  InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150224.1)
  PackageArchitecture: all
  SourcePackage: linux-firmware
  UpgradeStatus: No upgrade log present (probably fresh install)

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