[Olsr-dev] OLSR issues

[Ferry Huberts]

Yes, we have been noticing crashes as well but are having trouble 
reproducing them.

The assert you've hit we've been seeing too, so currently I'm running 
olsrd under gdb on 3 nodes:
1 with debug and with the triggering asserts
2 with debug but without the triggering asserts (since I think they're 
not the actual problem)
3 without debug

Any help in getting this fixed will be truely appreciated.
Any stracktraces of crashes will surely help!


If someone can easily reproduce a crash, then please also try to do a 
bisect to pinpoint the bad commit.
This may take sure way back in the commits but I sure hope not.


On 06/02/16 23:10, Bluse wrote:
> Hi all,
>
> Since a couple of month I observe some log messages from olsrd in our Freifunk mesh, that I just want to share, although the actual routing works fine.
> Just in case there is something interesting for the development about this issue. (There were a couple of email in Jan.2016 that went in the same direction but their was no solution yet.)
>
> So here my observations
>
>
> (A) regular olsrd start on nodes with a single wlan interface (UBIQUITY Bullet M5 & Nanosation M5):
> =>no dmesg output related to olsrd, routing works properly
>
> (B)regular olsrd start on nodes with 2x wlan interfaces (2,4GHz AP mode & 5 GHz adhoc mode)
>
> (B.1) TPLink 4300 (MIPS):
>
> =>olsrd is running and routing works properly, dmesg shows:
>
> do_page_fault(): sending SIGSEGV to olsrd for invalid write access to 00000000
> epc = 7763d4d0 in libc.so[7760e000+9d000]
> ra  = 00425c90 in olsrd[400000+4c000]
>
>
> (B.2) TPLink 4900 (POWERPC):
>
> =>olsrd is running and routing works properly, dmesg shows:
>
> olsrd[19632]: unhandled signal 11 at 00000000 nip b78555b4 lr b78554b4 code 30001
>
>
> MANUAL START OF OLSRD with debug level 6:
>
> olsrd -d 6 -file /var/etc/olsrd.conf -nofork
>
> -> just a single line of output:
> *** olsr.org - 0.9.0.3-git_10f0c39-hash_31e08ea6498c03a8f02694181402cf0d (2016-01-27 11:30:48 on TPLink4900.lan) ***
>
> -no further debug output at all (should I use a different command ?)
>
>
> after CRTL + C:
>
> ^C
> Assertion failed: !memcmp(&branding->cmb_sig, "cookie", 6) && branding->cmb_id == ci->ci_id (src/olsr_cookie.c: olsr_cookie_free: 290)
> sendto(v4): Bad file descriptor
> sendto(v4): Bad file descriptor
> sendto(v4): Bad file descriptor
> sendto(v4): Bad file descriptor
> Segmentation fault
>
>
> SETUP:
>
> Openwrt DESIGNATED DRIVER (Bleeding Edge, r48548)
> OLSR Version: 0.9.0.3-git_10f0c39-hash_31e08ea6498c03a8f02694181402cf0d
>
> cat /var/etc/olsrd.conf
>
> DebugLevel 0
> AllowNoInt yes
> IpVersion 4
> FIBMetric "flat"
> LinkQualityLevel 2
> LinkQualityAlgorithm "etx_ff"
> OlsrPort 698
> Willingness 7
> NatThreshold 1.0
> UseHysteresis no
> SmartGateway no
> LinkQualityFishEye 1
>
> Hna4
> {
>                 10.10.4.0 255.255.255.0
> }
>
> LoadPlugin "olsrd_arprefresh.so.0.1"
> {
> }
>
> LoadPlugin "olsrd_nameservice.so.0.3"
> {
>         PlParam "name" "TPLink-4900"
>         PlParam "lat" "55.1"
>         PlParam "lon" "10.8"
>         PlParam "latlon-file" "/var/run/latlon.js"
>         PlParam "hosts-file" "/var/etc/hosts.olsr"
>         PlParam "sighup-pid-file" "/var/run/dnsmasq.pid"
>         PlParam "suffix" ".freifunk"
>         PlParam "interval" "180"
>         PlParam "timeout" "3600"
> }
>
> LoadPlugin "olsrd_txtinfo.so.0.1"
> {
>         PlParam "accept" "0.0.0.0"
> }
>
> LoadPlugin "olsrd_watchdog.so.0.1"
> {
>         PlParam "interval" "30"
>         PlParam "file" "/var/run/olsrd.watchdog"
> }
>
> LoadPlugin "olsrd_jsoninfo.so.0.0"
> {
>         PlParam "accept" "0.0.0.0"
> }
>
> InterfaceDefaults
> {
>         Ip4Broadcast 255.255.255.255
>         Mode "mesh"
> }
>
> Interface "wlan0"
> {
>         Mode "mesh"
>         HelloInterval 11.0
>         HelloValidityTime 500.0
>         MidInterval 100.0
>         MidValidityTime 2000.0
>         HnaInterval 40.0
>         HnaValidityTime 500.0
> }
>
> Interface "eth0.10"
> {
>         Mode "ether"
>         HelloInterval 11.0
>         HelloValidityTime 500.0
>         MidInterval 100.0
>         MidValidityTime 2000.0
>         HnaInterval 40.0
>         HnaValidityTime 500.0
> }
>
>
> Greetings Bluse
>
>
>
>
>
>

-- 
Ferry Huberts