[Olsr-dev] OSLRd2 segmentation fault

[Gabriel]

On 20/04/2016 20:03, Henning Rogge wrote:
> On Wed, Apr 20, 2016 at 8:01 PM, Gabriel <(spam-protected)> wrote:
>> I'm running 0.9.2 on openwrt(ar7xxx) and 0.11.2
>> on debian(MIPS64)
> 
> Please update to 0.11.2 (or 0.11.3) on both systems...
> 
> if you want to use 0.11.3 for OpenWRT you can use my own Routing Feed
> (I expect 0.11.3 to appear in the official one in the next days).
> 
> https://github.com/HRogge/packages
> 
> Henning
> 


I've updated to 0.11.3 on OpenWRT. The Edgerouter is still running 0.11.2

The daemons behave in the same way as before.

This are the last lines of strace on the Openwrt router:

writev(3, [{"20:35:32.694 DEBUG(olsrv2_routin"..., 130}, {NULL, 0}], 2)
= 130
clock_gettime(CLOCK_REALTIME, {1461177332, 700907012}) = 0
munmap(0x77942000, 27)                  = 0
open("/etc/TZ", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_CLOEXEC) = 26
fstat64(26, {st_mode=S_IFREG|0644, st_size=27, ...}) = 0
mmap2(NULL, 27, PROT_READ, MAP_SHARED, 26, 0) = 0x77942000
close(26)                               = 0
writev(3, [{"20:35:32.700 DEBUG(class) s\n 215"..., 84}, {NULL, 0}], 2) = 84
clock_gettime(CLOCK_REALTIME, {1461177332, 706464758}) = 0
munmap(0x77942000, 27)                  = 0
open("/etc/TZ", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_CLOEXEC) = 26
fstat64(26, {st_mode=S_IFREG|0644, st_size=27, ...}) = 0
mmap2(NULL, 27, PROT_READ, MAP_SHARED, 26, 0) = 0x77942000
close(26)                               = 0
writev(3, [{"20:35:32.706 DEBUG(olsrv2_routin"..., 125}, {NULL, 0}], 2)
= 125
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0} ---
+++ killed by SIGSEGV +++
Segmentation fault




This are the last lines of strace on EdgeRouter:

write(2, "21:00:29.394 DEBUG(olsrv2_routin"..., 15621:00:29.394
DEBUG(olsrv2_routing) src-plugins/olsrv2/olsrv2/olsrv2_routing.c 589:
Initialize route entry dst 172.19.64.1 [0.0.0.0/0] with pathcost
16776960) = 156
write(2, "\n", 1
)                       = 1
--- SIGSEGV (Segmentation fault) @ 0 (0) ---
+++ killed by SIGSEGV +++
Segmentation fault




Just making some hypothesis... but maybe the bug is correlated to the
olsr1's one.

I checked the code at olsrdv2_routing.c:589  :

 OONF_DEBUG(LOG_OLSRV2_ROUTING, "Initialize route entry dst %s [%s] with
pathcost %u",
      netaddr_to_string(&nbuf1, &rtentry->route.p.key.dst),
      netaddr_to_string(&nbuf2, &rtentry->route.p.key.src),
      pathcost);


This is the code at src/link_set.c:361 in OLSRD1

 OLSR_PRINTF(1, "Set linkloss multiplier for %s on %s to %d\n",
      olsr_ip_to_string(&buf, &entry->neighbor_iface_addr),
cfg_inter->name, val);



They looks kinda similar to me.


Next thing I'm gonna do is to try to reproduce these bugs on another
EdgeRouter.


Gabriel