thanks for the bug report.



On Mon, May 20, 2013 at 5:28 AM, Lauri Kasanen <[email protected]> wrote:

> Hi
>
> There's a segfault in checking timeouts:
> ==5404== Invalid read of size 8
> ==5404==    at 0x40C154: rb_next (mk_rbtree.c:315)
> ==5404==    by 0x409816: mk_sched_check_timeouts (mk_scheduler.c:461)
> ==5404==    by 0x408BBD: mk_epoll_init (mk_epoll.c:280)
> ==5404==    by 0x409669: mk_sched_launch_worker_loop
> (mk_scheduler.c:302) ==5404==    by 0x5032FEA: start_thread
> (in /lib/libpthread-2.7.so) ==5404==    by 0x530B94C: clone
> (in /lib/libc-2.7.so) ==5404==  Address 0x5632e68 is 5,592 bytes inside
> a block of size 5,616 free'd ==5404==    at 0x4C2220F: free
> (in /opt/valgrind/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
> ==5404==    by 0x409869: mk_sched_check_timeouts (mk_scheduler.c:477)
> ==5404==    by 0x408BBD: mk_epoll_init (mk_epoll.c:280) ==5404==    by
> 0x409669: mk_sched_launch_worker_loop (mk_scheduler.c:302) ==5404==
> by 0x5032FEA: start_thread (in /lib/libpthread-2.7.so) ==5404==    by
> 0x530B94C: clone (in /lib/libc-2.7.so)
>
> That is, it is not safe to remove a node from the RB tree and then
> continue to iterate, because then rb_next(node) accesses freed memory
> (node).
>
> - Lauri
> _______________________________________________
> Monkey mailing list
> [email protected]
> http://lists.monkey-project.com/listinfo/monkey
>



-- 
Eduardo Silva
http://edsiper.linuxchile.cl
http://www.monkey-project.com
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