Hostapd SIGSEGV with rt2x00

Johannes Berg johannes at sipsolutions.net
Sun Aug 3 14:23:31 EDT 2008


On Sun, 2008-08-03 at 17:46 +0200, n_petr wrote:
> Hello,
> yesterday I recieved SIGSEGV from hostapd on:
> kernel: 2.6.27-rc1-wl
> driver: rt2500pci
> version: 2.1.8
> compiled: Aug 2 2008 18:48:26
> 
> # hostapd.conf
> interface=wlan0
> driver=nl80211
> ssid=stealth
> hw_mode=g
> 
> # hostapd -dd /etc/hostapd/hostapd.conf
> Configuration file: /etc/hostapd/hostapd.conf
> Failed to create interface mon.wlan0.
> nl80211 driver initialization failed.
> wlan0: Unable to setup interface.
> Flushing old station entries
> Deauthenticate all stations
> Neoprávněný přístup do paměti (SIGSEGV)
> 
> # dmesg
> [ 873.450929] hostapd[5818]: segfault at 0 ip 0804c6af sp bff23f60 error 4 in hostapd[8048000+53000]
> [ 1950.047936] hostapd[6591]: segfault at 0 ip 0804c6af sp bfca1070 error 4 in hostapd[8048000+53000]
> [ 1985.862599] hostapd[6610]: segfault at 0 ip 0804c6af sp bfe36a00 error 4 in hostapd[8048000+53000]
> 
> I am using Hostapd from git. You can see more info in:
> http://sourceforge.net/mailarchive/forum.php?thread_name=1343.1215-14058-167311540-1217705175%40seznam.cz&forum_name=rt2400-devel
> 
> Is it sufficient report for fix this bug?

Umm, no. Compile with debugging information and run with gdb.

johannes
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