wpa_supplicant segfault in large WLAN

Ben Greear greearb
Wed Sep 25 15:58:43 PDT 2013

On 09/25/2013 03:51 PM, Matt Causey wrote:
> Hello,
> We run wpa_supplicant on embedded machines and have today noticed that the supplicant dies with segmentation fault.  We are seeing sporadic timeouts from the
> infrastructure as well, which may or may not be related.  The only change on our side is that we installed in a very dense RF environment with a large number of
> BSSIDs.  Are there any details pertaining to BSSID count or beacon count that could cause a segmentation fault?  I'll start looking in the code but wanted to
> ask first so that hopefully someone can point me in a more useful direction.  :-)
> Here is a log snippet.  It's got to be abbreviated because in some cases we have over 988 BSSIDs visible from the client:

Can you get a core dump and backtrace (and maybe more info from gdb once
we see the backtrace?)


Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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