Bug in libnl-3.2.0?

[Peter Júnoš]

Hello,

did you try running it using Valgrind? It could help you to find bugs,
independently of their position (your app x libnl).
-- 
Peter Júnoš <petoju at gmail.com>

V Piatok, 10. august 2012 o 14:34 -0400, samriti katoch napísal(a):
> Hi,
> 
> I am using libnl-3-200_3.2.7-2_i386.deb and
> libnl-route-3-200_3.2.7-2_i386.deb on Ubuntu to resolve IPv6 addresses
> into corresponding MAC addresses, in a multi-threaded application. I
> see the application crash with Segmentation fault after resolving
> close to 30,000 IPv6 addresses.
> The application creates a cache manager for both route/link and
> route/neigh and then uses nl_cache_mngr_poll function to receive
> neighbor cache updates. Here is a backtrace from gdb after the
> segmentation fault:
> 
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread -378549344 (LWP 3159)]
> 0xf7e081b3 in main_arena () from /lib/tls/i686/cmov/libc.so.6
> (gdb) bt
> #0  0xf7e081b3 in main_arena () from /lib/tls/i686/cmov/libc.so.6
> #1  0xf7f968b6 in nl_recvmsgs () from /lib/libnl-3.so.200
> #2  0xf7f96e52 in nl_recvmsgs_default () from /lib/libnl-3.so.200
> #3  0xf7f929ee in nl_cache_mngr_data_ready () from /lib/libnl-3.so.200
> #4  0xf7f92a8a in nl_cache_mngr_poll () from /lib/libnl-3.so.200
> 
> I looked through logs of recent commits and did not find anything that
> mentions this problem. 
> I would appreciate it if I could get your inputs on this, and also if
> libnl can handle high load from a multi-threaded applications.
> 
> Thanks,
> Samriti
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