| Summary: | [kernel] ath5k phy0: gain calibration timeout - wireless connectivity lost until reboot | ||||||
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| Product: | [Fedora] Fedora | Reporter: | Joachim Frieben <jfrieben> | ||||
| Component: | kernel | Assignee: | Stanislaw Gruszka <sgruszka> | ||||
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | urgent | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | rawhide | CC: | gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, pv.bugzilla, sgruszka | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | kernel-2.6.38-0.rc3.git2.1.fc15.x86_64 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2011-02-04 09:21:08 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Attachments: |
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Description
Joachim Frieben
2011-01-26 10:56:31 UTC
Reverting successively to earlier kernel builds, it appears that the issue is present from kernel 2.6.38-0.rc2.git1.3.fc15 on, thus 2.6.38-0.rc2.git1.3.fc15 : FAILURE 2.6.38-0.rc2.git1.1.fc15 : SUCCESS According to the changelog, only a vendor patch has been applied between these two builds: * Mon Jan 24 2011 Kyle McMartin <kmcmartin redhat com> 2.6.38-0.rc2.git1.3 - Disable usb/pci/acpi autosuspend goo until it can be checked. After half a day of using kernel 2.6.38-0.rc2.git1.1.fc15, a gain calibration timeout eventually occurred, too, whereas for more recent kernels it happened within a couple of minutes. This observation supports the conjecture of dealing with a genuine 2.6.38 issue. Created attachment 476753 [details] Patch for fast channel switch Patch fixing the fast channel fix issue provided by Nick Kossifis at https://bugzilla.kernel.org/show_bug.cgi?id=27382#c32 . Please include it into the next F15 kernel build in order to work around the current issue until it gets fixed upstream. Tge latest kernel-2.6.38-0.rc3.git0.1.fc15 is still affected by this issue making it unusable for people relying on wireless network. Thanks! I am finding this problem happening again. I updated my system with yum update on 2012-04-25. lots of "ath5k phy0: gain calibration timeout" in dmesg GUI manager allows dis/enabling wireless but shows no networks. I have not used the wireless for some time, so can't say whether it was broken by recent updates, or has been broken a long time. F16 x86_64 I've tried rebooting with kernels from 3.2.10-3 to 3.3.2-6 . reboots do not help. Can someone reopen this report? In my case, emoving the battery restores network connectivity, as reported in similar bugs from 2009, 2010, 2011: https://bugzilla.redhat.com/show_bug.cgi?id=478395 https://bugzilla.redhat.com/show_bug.cgi?id=638943 https://bugzilla.redhat.com/show_bug.cgi?id=672778 |