(gdb) p *tl->prev

$1 = {next = 0x0, prev = 0x7fa5e0403d50, expire = 3233857728, initial_timeout = 0, data = 0xabcdefed, f = 0, flags = 0, slow_idx = 0}

(gdb) p *tl->next

Cannot access memory at address 0x0


2015-01-29 18:09 GMT+08:00 Daniel-Constantin Mierla <miconda@gmail.com>:
Hello,

the tl content looks good, let's see the prev and next items:

p *tl->prev
p *tl->next

Cheers,
Daniel


On 29/01/15 08:49, 张顺通 wrote:
hi  daniel, look at the following info,thks.

(gdb) bt full
#0  0x00000000005fda98 in timer_list_expire (t=1263625687, h=0x7fa5e01c19b0, slow_l=0x7fa5e01c3010, slow_mark=325) at timer.c:877
        tl = 0x7fa5e03e77d0
        ret = 0
#1  0x00000000005fc686 in timer_handler () at timer.c:953
        saved_ticks = 1263625687
        run_slow_timer = 0
        i = 325
        __FUNCTION__ = "timer_handler"
#2  0x00000000005fdd4d in timer_main () at timer.c:992
No locals.
#3  0x00000000004aa571 in main_loop () at main.c:1700
        i = 12
        pid = 0
        si = 0x0
        si_desc = "udp receiver child=11 sock=10.103.252.159:5160\000\000\b\000\000\000\000\000\000\000\000\200\024\340\245\177\000\000 ;\032\000\001\000\000\000(\325\027\340\245\177\000\000 ;\032\000\377\177\000\000\214\216N\000\000\000\000\000\335\233}{\000\000\000\000(\325\027\340\245\177\000\000\200>\032\000\377\177\000\000\000\000\000\000\001\000\000"
        nrprocs = 12
        __FUNCTION__ = "main_loop"
#4  0x00000000004af166 in main (argc=11, argv=0x7fff001a3e88) at main.c:2561
        cfg_stream = 0x19e15e0
        c = -1
        r = 0
        tmp = 0x7fff001a4681 ""
        tmp_len = 32767
        port = 1719808
        proto = 32680
        options = 0x706ec0 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"
        ret = -1
        seed = 3548653977
        rfd = 4
        debug_save = 0
        debug_flag = 0
        dont_fork_cnt = 0
        n_lst = 0xb
        p = 0x0
        __FUNCTION__ = "main"


(gdb) p *tl

$1 = {next = 0x0, prev = 0x7fa5e01c19b0, expire = 1263625760, initial_timeout = 80, data = 0x7fa5e03e7750, f = 0x7fa864720942 <wait_handler>, flags = 513, 

  slow_idx = 0}


2015-01-17 0:40 GMT+08:00 Daniel-Constantin Mierla <miconda@gmail.com>:
Can you get the output in gdb for:

p *tl

?

Cheers,
Daniel


On 16/01/15 04:29, 张顺通 wrote:
I user rtimer module :

loadmodule "rtimer.so"
modparam("rtimer", "timer", "name=p_route;interval=1;mode=1;")
modparam("rtimer", "exec", "timer=p_route;route=P_ROUTE")

application will coredump in sometimes, and core file in below, what's the reason?

Program terminated with signal 11, Segmentation fault.
#0  0x00000000005fda98 in timer_list_expire (t=1043586690, h=0x7f9ed45ac9b0, slow_l=0x7f9ed45adc80, slow_mark=2316) at timer.c:877
877 timer.c: No such file or directory.
in timer.c
(gdb) bt full
#0  0x00000000005fda98 in timer_list_expire (t=1043586690, h=0x7f9ed45ac9b0, slow_l=0x7f9ed45adc80, slow_mark=2316) at timer.c:877
        tl = 0x7f9ed47f7e98
        ret = 0
#1  0x00000000005fc686 in timer_handler () at timer.c:953
        saved_ticks = 1043586690
        run_slow_timer = 0
        i = 268
        __FUNCTION__ = "timer_handler"
#2  0x00000000005fdd4d in timer_main () at timer.c:992
No locals.
#3  0x00000000004aa571 in main_loop () at main.c:1700
        i = 12
        pid = 0
        si = 0x0
        si_desc = "udp receiver child=11 sock=10.1.*.*:5160\000\000\b\000\000\000\000\000\000\000\000\060S\324\236\177\000\000\060=#z\001\000\000\000(\205V\324\236\177\000\000\060=#z\377\177\000\000\214\216N\000\000\000\000\000\037t\372D\000\000\000\000(\205V\324\236\177\000\000\220@#z\377\177\000\000\000\000\000\000\001\000\000"
        nrprocs = 12
        __FUNCTION__ = "main_loop"
#4  0x00000000004af166 in main (argc=11, argv=0x7fff7a234098) at main.c:2561
        cfg_stream = 0x1da75e0
        c = -1
        r = 0
        tmp = 0x7fff7a234681 ""
        tmp_len = 32767
        port = 2049130512
        proto = 32673
        options = 0x706ec0 ":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:"
        ret = -1
        seed = 220012340
        rfd = 4
        debug_save = 0
        debug_flag = 0
        dont_fork_cnt = 0
        n_lst = 0xb
        p = 0x0
        __FUNCTION__ = "main"



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-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda


-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda