[Freeswitch-dev] Strange bug...

Moises Silva moises.silva at gmail.com
Wed Sep 15 18:01:47 PDT 2010

There seems to be a leak somewhere. We're chasing down a leak that we
detected the past weekend after we finally got the whole weekend running
freeswitch under severe stress and glare scenarios. The OOM killer kicked in
at some point.

We've found that even non-glare scenarios are leaking. Since we just
introduced a new stack, we're unsure at this point whether is our new stack
or something in FreeSWITCH. However, after running valgrind, using
MALLOC_CHECK_ and mtrace(), those tools report issues at switch_event.c,
where one of the headers value being freed was never allocated (and
therefore may be the value that was really allocated is not being freed), or
is some kind of heap corruption. Many hypothesis at this point, nothing

Just thought in letting you know, it may not even be the same issue.

Moises Silva
Senior Software Engineer
Sangoma Technologies Inc. | NEW 100 Renfrew Drive, Suite 100, Markham ON L3R
9R6 Canada
t. 1 905 474 1990 x128 | e. moy at sangoma.com

On Wed, Sep 15, 2010 at 4:47 PM, Oleg Khovayko <khovayko at gmail.com> wrote:

> Hi,
> Just for information:
> Time to time, very seldom, I see strange bug with my FS-machine.
> FreeSwitch starts to use ~60% of CPU, and eat more and more memory.
> When it reach ~500MB, system kill this task.
> Restart does not help. Reboot also. After reboot, FS, when starts,
> continues to eat CPU and memory.
> When I try if from terminal, and use command "shutdown",
> system not exit completely, and freeze, just after print about
> destroying all connections to SIP-providers.
> When I tried to debug it, looks like problem in the thread #5.
> And, last time, I seen following message, after which FS starts working
> normally:
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 0x28802250 (LWP 100075)]
> sqlite3HashInsert (pH=0x0, pKey=0x297e7d78, nKey=15, data=0x28c5a080) at
> ./src/hash.c:347
> 347       xHash = hashFunction(pH->keyClass);
> (gdb)
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