Hi

Here is the output:

gdb) 
(gdb) frame 0
#0  qm_detach_free (qm=0x7fd96175e010, size=112) at mem/q_malloc.c:266
266 in mem/q_malloc.c
(gdb) 
#0  qm_detach_free (qm=0x7fd96175e010, size=112) at mem/q_malloc.c:266
266 in mem/q_malloc.c
(gdb) p *frag
$1 = {size = 7599108840079127868, u = {nxt_free = 0x3965663931343a64, is_free = 4135824228634344036}}
(gdb) 
$2 = {size = 7599108840079127868, u = {nxt_free = 0x3965663931343a64, is_free = 4135824228634344036}}
(gdb) 
$3 = {size = 7599108840079127868, u = {nxt_free = 0x3965663931343a64, is_free = 4135824228634344036}}
(gdb) p *((char*)frag + sizeof(struct qm_frag))
$4 = 99 'c'

Is it okay to run with MEMDBG=1 in production ? Wouldn't it make it a little slow ?

Just let me know if u want so see something else with gdb. Unfortunally  I do not have SIP traces, but I have the core file and some logs.


Regards,
Dragos


On Thursday, November 21, 2013 6:50 PM, Daniel-Constantin Mierla <miconda@gmail.com> wrote:
Hello,

can you provde the output in gdb for:

frame 0

p *frag


p *((char*)frag + sizeof(struct qm_frag))
There were similar reports, so apparently there is a buffer overflow somewhere.

You should update to latest git branch 4.0, because there were some other fixes from 4.0.3. With this occasion, you should set MEMDBG=1 in Makefile.defs before recompiling the new version to be able to catch easier the overwrites of memory.

Cheers,
Daniel

On 11/21/13 6:36 PM, Dragos Oancea wrote:
Hello

We had this crash today with kamailio 4.0.3 .
It ran stable for few weeks until this crash.

GDB here:



Regards,
Dragos


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