Bug 915689
| Summary: | WARNING: at net/mac80211/scan.c:524 __ieee80211_start_scan+0x4e4/0x4f0 [mac80211]() | ||||||||
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| Product: | [Fedora] Fedora | Reporter: | Branko Grubić <bitlord0xff> | ||||||
| Component: | kernel | Assignee: | Stanislaw Gruszka <sgruszka> | ||||||
| Status: | CLOSED WORKSFORME | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||||
| Severity: | high | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | 18 | CC: | gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda | ||||||
| Target Milestone: | --- | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | x86_64 | ||||||||
| OS: | Linux | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2013-03-08 15:50:51 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Attachments: |
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Please attach full dmesg Created attachment 702934 [details]
dmesg
(In reply to comment #0) > Description of problem: My wifi stopped working, I can enable/disable it > using network manager, but I'm not able to see any network, tried few > commands I used before (I hope the syntax is correct) like: Does it mean that update of the kernel broke wifi for you? If so what was the latest kernel version which worked ? It is hard to tell if it is the kernel problem (I don't know much), I use f18 from pre-Beta days, and it worked most of the time, no similar issues, worked after final too (I don't use wifi all the time, I mostly used wired network). But now there is other problem I cannot test older kernel versions, because they are removed and I did fresh install (few days ago). At the moment I have installed: kernel-3.6.10-4.fc18.x86_64 kernel-3.7.8-202.fc18.x86_64 kernel-3.7.9-201.fc18.x86_64 3.7.8-202 doesn't work (doesn't show any available wifi network in network manager), then I upgraded to 3.7.9-201, same problem, I think I tried first kernel which came with f18 3.6.10-4 and got same problem, that was the first time I tried using iwlist, iwconfig and ifconfig to test things, and got this kernel warning and wanted to test and reproduce it on latest stable kernel available in fedora. Anything better with updated 3.8 kernel and updated NetworkManager ? It is complicated to explain what I did in between. I needed my laptop with working wireless, so only solution was to copy _backup disk image_ of another system (I used before and I maintain sometimes), on that system it worked fine with vanilla kernel 3.7.9 - 3.8.1 ("custom configuration") and network manager. But I don't have much space to keep all system images so I removed fedora, and did a fresh install later, now it works without problems (system is up-to-date). So this can be closed.
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Created attachment 702778 [details] kernel messages Description of problem: My wifi stopped working, I can enable/disable it using network manager, but I'm not able to see any network, tried few commands I used before (I hope the syntax is correct) like: # iwlist wlan0 scan It doesn't work returns message "wlan0 Interface doesn't support scanning : Invalid argument" tried iwconfig # iwconfig wlan0 essid "some_existing_essid" and it gives this WARNING Version-Release number of selected component (if applicable): kernel-3.7.9-201.fc18.x86_64 How reproducible: Always Steps to Reproduce: 1. iwlist wlan0 scan OR ifconfig wlan0 up 2. 3. Actual results: Wifi doesn't work, kernel returns Warning at certain operations Expected results: wifi works, no warning message Additional info: