Bug 820167
| Summary: | scanning failure after doing wireless roaming on iwl6205 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Stanislaw Gruszka <sgruszka> | ||||||||
| Component: | kernel | Assignee: | Stanislaw Gruszka <sgruszka> | ||||||||
| Status: | CLOSED NOTABUG | QA Contact: | Desktop QE <desktop-qa-list> | ||||||||
| Severity: | urgent | Docs Contact: | |||||||||
| Priority: | urgent | ||||||||||
| Version: | 6.2 | CC: | brunor, hesemeyt, kzhang, linville, tpelka, walicki | ||||||||
| Target Milestone: | rc | ||||||||||
| Target Release: | --- | ||||||||||
| Hardware: | Unspecified | ||||||||||
| OS: | Unspecified | ||||||||||
| Whiteboard: | |||||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||||
| Doc Text: | Story Points: | --- | |||||||||
| Clone Of: | 814674 | Environment: | |||||||||
| Last Closed: | 2012-05-15 10:17:11 UTC | Type: | --- | ||||||||
| Regression: | --- | Mount Type: | --- | ||||||||
| Documentation: | --- | CRM: | |||||||||
| Verified Versions: | Category: | --- | |||||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||||
| Embargoed: | |||||||||||
| Bug Depends On: | 766952, 808095, 814674 | ||||||||||
| Bug Blocks: | |||||||||||
| Attachments: |
|
||||||||||
|
Description
Stanislaw Gruszka
2012-05-09 10:13:47 UTC
Created attachment 583207 [details]
test-roam2
Roaming testing script.
Issue is not reproducible on RHEL6.3 beta kernel - Thorsten, is that correct? Created attachment 583235 [details]
Everything in one file
Hi,
I've put together in one tgz file:
test-roam2 ... script used (just to be complete)
dmesg.txt ... output of dmesg command
sosreport* ... files from sosreport of my T420
(other) ... ifconfig -a and some more output
The folder var/log/ contains log files from /var/log/
dmesg ... /var/log/dmesg file
messages ... /var/log/messages file
wpa_supplicant.log ... /var/log/wpa_supplicant.log file with timestamps and debugging information
test-roam.log... /var/log/test-roam.log file written by the script above.
The test-roam.log file contains the following fields:
#1 number of access points found while scanning
#2 Date&Time /human readable,
#3 Time in seconds since 1970
#4 Uptime Idle in seconds
#5 Uptime in seconds
Meant to make it easier to join and find the different time stamps from dmesg, messages and other log files.
Kind regards,
Thorsten
Hi, the test-roam.log file gives an overview what happened: a) started 05/08/12 08:21:14 b) after 05/08/12 10:26:42 only and exactly one access point visible c) after 05/08/12 21:49:45 no access point visible I was astonished to see there was no access point left over this morning. But I guess that is really good for finding the issue. Kind regards, Thorsten Created attachment 583258 [details]
wpa_supplicant.log files from today and yesterday
Hi,
just noticed, the wpa_supplicant information has been log-rotated.
Here's the information you probably will like to have:
var/log/wpa_supplicant.log-20120508
var/log/wpa_supplicant.log-20120509
Kind regards,
Thorsten
This problem is fixed on RHEL6.3, but we need to find a patch for RHEL6.2. Hi Stanislaw, agreed, tested RHEL63 starting yesterday - issue did not occur: RHEL62 - usually occurs after a some minutes or one/two hours RHEL63 - does not occur even when roaming more than 24h Kind regards, Thorsten This issue is not a bug on RHEL6.2 release, but rather bug in one of my test patches, claiming to fix 814674 (wireless roaming test on raw RHEL6.2 kernel will trigger a crash). There was a race condition that mark scanning as pending, but do not perform actual scan and scan pending state was never unmarked. New scan request finished with -EBUSY (Resource temporarily unavailable) error. Hence after some time there was no AP visible except currently associated one, since kernel internally time out old APs information. |