[stunnel-users] possible stunnel memory leak
Stefano Stabellini
stefano.stabellini at eu.citrix.com
Tue Mar 25 16:40:06 CET 2008
MichaĆ Trojnara wrote:
> Stefano Stabellini wrote:
>> I may have found a possible memory leak in stunnel
>> (version 4.15) when used with pthreads.
>
> Please test it with latest stunnel and the OpenSSL library.
> I'd rather expect the leak to be within the OpenSSL library.
> Stunnel is very conservative about its dynamic memory allocation.
>
The situation is different with stunnel 4.21, the peak is lower (about
100M instead of 300M) but after closing all the connections the memory
usage is still about 50M:
VmPeak: 97036 kB
VmSize: 92652 kB
VmLck: 0 kB
VmHWM: 51444 kB
VmRSS: 46992 kB
VmData: 89192 kB
VmStk: 88 kB
VmExe: 84 kB
VmLib: 3124 kB
VmPTE: 104 kB
in any case a big improvement, but probably there is still an issue
somewhere.
I think that it has something to do with deallocating resources when a
thread dies, but it is just a guess.
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