[Bug 476367] New: wireless driver iwlagn hangs after waking up from suspend -- only hard shutdown helps
https://bugzilla.novell.com/show_bug.cgi?id=476367 User vok@cvmi.aau.dk added comment https://bugzilla.novell.com/show_bug.cgi?id=476367#c26 Summary: wireless driver iwlagn hangs after waking up from suspend -- only hard shutdown helps Classification: openSUSE Product: openSUSE 11.1 Version: Final Platform: x86-64 OS/Version: openSUSE 11.1 Status: NEW Severity: Major Priority: P5 - None Component: Kernel AssignedTo: bnc-team-screening@forge.provo.novell.com ReportedBy: vok@cvmi.aau.dk QAContact: qa@suse.de Found By: --- Created an attachment (id=273198) --> (https://bugzilla.novell.com/attachment.cgi?id=273198) subset of /var/log/messages User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.6) Gecko/2009012700 SUSE/3.0.6-0.1.2 Firefox/3.0.6 I have often a problem with the wireless driver iwlagn after wakeup from standby: When i attempt to connect to a wireless network, it very often results in the machine hanging: I can see that the root process event/1 consumes 100% computation time and keyboard input does not work anymore. All I can do is turn off the machine using the powerbutton. Sometimes, the HW-switch for the wireless manages to shut down the wireless driver, which also stops the event/1 process from using 100% computation time. Then, a rmmod and modprobe of iwlagn _sometimes_ helps. This observation happened on a Thinkpad X200s, opensuse and kernel 2.6.27.7-9 and 2.6.27.17-4, 64bit. This is the same error as in http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1832 And I can confirm comment #26. Reproducible: Always Steps to Reproduce: How to do that: - use wpa connection (not really sure if it would work on nonwpa also, i have wpa everywhere i can) - connect to AP - associate or send some data - turn killswitch on (disable wireless) - turn killswitch off (enable wireless) - close the lid/suspend to ram - restore - try to associate to wpa - you get event/1 cycling, one core is fully loaded, keyboard is blocked in X until i kill signal again. - until i fix it somehow, i cannot connect to wpa station until reboot. Actual Results: Machine hangs, keyboard input does not work anymore under X. Mouse seems to be working, but opening a shell, for example, is _very_ slow Expected Results: There should not have been a lockup of the iwlagn driver after wakeup. I classify it as a "major feature being broken" as it makes the suspend2ram on the laptop useless. i appended an extract from /var/log/messages. It starts with the last line before suspend to ram and ends with the the final hard shutdown after the lock-up. The iwlagn module starts at time 20:12:37 showing a number of microcode errors. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 Marcus Meissner <meissner@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|bnc-team-screening@forge.pr |hschaa@novell.com |ovo.novell.com | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 Helmut Schaa <hschaa@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 User hschaa@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=476367#c1 --- Comment #1 from Helmut Schaa <hschaa@novell.com> 2009-02-18 03:36:35 MST --- Taking all steps you've wrote I wasn't able to reproduce this issue. However, you're using an iwl5000 whereas I used an iwl4965. Will check on iwl5000 soon. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 User vok@cvmi.aau.dk added comment https://bugzilla.novell.com/show_bug.cgi?id=476367#c2 --- Comment #2 from Volker Krüger <vok@cvmi.aau.dk> 2009-02-18 04:13:26 MST --- Hi Helmut, I have a Intel WiFi Link 5300AGN. It seems that the iwl4965 driver didn't have that problem, see http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1832 See comment #20. In order to reproduce the problem, I don't have to do anything else but put the laptop to standby, let it wake up again and associate again with a WPA secured wireless network. Assuming of course that I was using the WPA-secured network before the standby. I don't have to do any pathological steps to generate the problem. I am not sure if there is any dependency with a non-WPA network, though!! let me know if and what debug information you want me to provide. best, Volker -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 Helmut Schaa <hschaa@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P3 - Medium -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 User hschaa@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=476367#c3 Helmut Schaa <hschaa@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO CC| |fseidel@novell.com, | |vbotka@novell.com Info Provider| |vbotka@novell.com --- Comment #3 from Helmut Schaa <hschaa@novell.com> 2009-02-19 02:08:48 MST --- Vlado, I think you have an iwl5000. Right? Could you please try to reproduce this issue? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 User vbotka@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=476367#c4 --- Comment #4 from Vladimir Botka <vbotka@novell.com> 2009-02-19 06:47:59 MST --- Sony Vaio VGN-Z540 (L696) "Intel Wireless WiFi Link 5100" [8086:4232] . WORKSFORME Lenovo TP R400 "Intel PRO/Wireless 5100 AGN ..." [8086:4237] . Here I observe the same X related problem as reported in Bug 471087 - "Suspend to ram does not work for ThinkPad R400". It depends on DRI being disabled in xorg.conf. So I can not perform suspend and thus cannot try to reproduce the wlan problem here. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 User hschaa@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=476367#c5 Helmut Schaa <hschaa@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED Info Provider|vbotka@novell.com | --- Comment #5 from Helmut Schaa <hschaa@novell.com> 2009-02-26 02:48:15 MST --- Rmoving needinfo. Ok, then I have to find another machine to reproduce this bug. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 User vok@cvmi.aau.dk added comment https://bugzilla.novell.com/show_bug.cgi?id=476367#c6 --- Comment #6 from Volker Krüger <vok@cvmi.aau.dk> 2009-02-26 03:55:59 MST --- Hi Helmut, this bug is really annoying to me: another and more natural way to *always* reproduce the bug is: 1) boot the machine 2) associate the wireless with a WPA network and work 3) suspend the machine (this is the first suspend after boot) 4) wake the machine up, re-associate with the same WPA network and continue working 5) suspend the machine (this is the second suspend) 6) after wake up, the machine is *not* able to properly re-connect the the WPA network and the above mentioned problems appear. So: I may only suspend the laptop once! After second suspend, wireless stops working. while you try to find a machine to reproduce the bug, let me know what info you need and I test it out and send you the debug information. I have a normal Lenovo X200s with the IWL5300 wireless card. Another comment: I was not able to understand what actually happened to the bug in http://www.intellinuxwireless.org/bugzilla/show_bug.cgi?id=1832 it seems that with the 2.6.28 kernel, things were fixed. But I am not sure. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 User hschaa@novell.com added comment https://bugzilla.novell.com/show_bug.cgi?id=476367#c7 Helmut Schaa <hschaa@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |NEEDINFO Info Provider| |vok@cvmi.aau.dk --- Comment #7 from Helmut Schaa <hschaa@novell.com> 2009-02-26 07:03:56 MST --- Could you please attach /var/log/messages after step 6 (from your comment #6). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 User vok@cvmi.aau.dk added comment https://bugzilla.novell.com/show_bug.cgi?id=476367#c8 Volker Krüger <vok@cvmi.aau.dk> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |ASSIGNED Info Provider|vok@cvmi.aau.dk | --- Comment #8 from Volker Krüger <vok@cvmi.aau.dk> 2009-02-26 11:54:27 MST --- Created an attachment (id=275786) --> (https://bugzilla.novell.com/attachment.cgi?id=275786) /var/log/messages -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 User vok@cvmi.aau.dk added comment https://bugzilla.novell.com/show_bug.cgi?id=476367#c9 --- Comment #9 from Volker Krüger <vok@cvmi.aau.dk> 2009-02-26 12:01:58 MST --- Hi Helmut, I have appended the /var/log/messages: It is the complete file from today. Over the day, I used wired network. Only tonight after 19:00 I used the wireless to create the error. At the end of the messages file you can see the message Feb 26 19:38:27 linux-vlnb kernel: iwlagn: SENSITIVITY_CMD failed This was about when one of the event processes started to use 100%. Once I saw that the process was using 100% cpu time, I stopped the wireless with the switch. Feb 26 19:38:27 linux-vlnb kernel: iwlagn: Radio Frequency Kill Switch is On: -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=476367 Helmut Schaa <hschaa@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #275786|application/octet-stream |text/plain mime type| | -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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