[Quickfix-developers] Session limit for Acceptors. It causes buffer overflow

[Fatih A. <fa...@ar...>]

Hi,

I have executor.cfg file under 257 sessions .If I execute it via:

     ./executor cfg/executor.cfg

I'll get no error.

However, I have executor.cfg file with 257 sessions.

I'll get this error:

*********************************************************************************************

*** buffer overflow detected ***:
/home/fatih/Downloads/quickfix/examples/executor/C++/.libs/lt-executor
terminated
======= Backtrace: =========
/lib/i386-linux-gnu/libc.so.6(__fortify_fail+0x45)[0xb74ffdd5]
/lib/i386-linux-gnu/libc.so.6(+0xfebaa)[0xb74febaa]
/lib/i386-linux-gnu/libc.so.6(+0xffd6a)[0xb74ffd6a]
/home/fatih/Downloads/quickfix/src/C++/.libs/libquickfix.so.14(_ZN3FIX13SocketMonitor8buildSetERKSt3setIiSt4lessIiESaIiEER6fd_set+0x33)[0xb773c093]
/home/fatih/Downloads/quickfix/src/C++/.libs/libquickfix.so.14(_ZN3FIX13SocketMonitor5blockERNS0_8StrategyEbd+0x156)[0xb773cd46]
/home/fatih/Downloads/quickfix/src/C++/.libs/libquickfix.so.14(_ZN3FIX12SocketServer5blockERNS0_8StrategyEbd+0x244)[0xb772f074]
/home/fatih/Downloads/quickfix/src/C++/.libs/libquickfix.so.14(_ZN3FIX14SocketAcceptor7onStartEv+0x4c)[0xb773739c]
/home/fatih/Downloads/quickfix/src/C++/.libs/libquickfix.so.14(_ZN3FIX8Acceptor11startThreadEPv+0xf)[0xb773075f]
/lib/i386-linux-gnu/libpthread.so.0(+0x6d4c)[0xb76afd4c]
/lib/i386-linux-gnu/libc.so.6(clone+0x5e)[0xb74eaace]
======= Memory map: ========

*********************************************************************************************

I have executor.cfg file with **over** 257 sessions. I'll get:

    Configuration failed: Could not open header file:
store/FIX.4.2-EXECUTOR-CLIENT25

I tought it may be due to FD size. However I have very large file
descriptor size:


    $cat /proc/sys/fs/file-max
    401603

What is wrong here?

Thanks in advance
Regards

-- 
Fatih Arslan