Red Hat Bugzilla – Bug 539438
wpa_supplicant crashes on resume
Last modified: 2010-12-03 22:07:00 EST
Created attachment 372427 [details]
gdb backtrace for wpa_supplicant
Description of problem:
Occasionally wpa_supplicant will crash on resume. This may be related to bug 538717.
abrt saved the core file. I'll attach the backtrace from gdb as a file. The crash looks like it's in glibc, but I'm assigning it here until we determine that's the case.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Occasionally wpa_supplicant will crash. NetworkManager and hald will frequently crash along with it due to their own bugs.
I'm also seeing this and can also provide more core files/debug info if necessary.
See also bug #538717 for the NetworkManager counterpart.
*** Bug 540290 has been marked as a duplicate of this bug. ***
Is there any chance you can get *another* backtrace from the supplicant and see if it dies in the same spot? The backtrace you were able to get (thanks!) is quite odd, and probably indicates heap corruption since the segfault inside glibc memory allocation functions. Also, if you're able to get the supplicant to die in gdb (start it under gdb initially using the arguments in /usr/share/dbus-1/system-services/fi.epitest.hostap.WPASupplicant.service) and it dies at the same place, please print out the value of 'buflen' from whatever stack frame wpa_driver_wext_get_range() is. Thanks!
Created attachment 405875 [details]
More complete backtrace
As requested I am able to generate a more complete backtrace (as generated by abrt). It appears to have failed in exactly the same way, and like the OP it happened on a resume after a suspend. As you can see, the value of 'buflen' in wpa_driver_wext_get_range() is 1068.
/var/log/wpa_supplicant.log doesn't show up anything of use.
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