hi all:
first thanks for your openssl.
i use the openssl0.9.8g ＋ DTLS patch。i found a bug in my code.
there is the information:
I have an issue in OpenSSL, I call the free function to free the BIO resource:
if (para.dtls.SslBioPtr != NULL){ çI do the test, the free
point is the correct address which get from BIO_new_dgram
ah_err("ready free BIO %x",para.dtls.SslBioPtr);
BIO_free(para.dtls.SslBioPtr); <=core after this function
ah_err("free BIO ok"); çcan not print this
information
para.dtls.SslBioPtr = NULL;
}
I often found core after BIO_free function. But I add the debug
information to BIO_free function, each time the function is return correct. But
the next information is not print out (free BIO ok), segment fault will happen.
I check the core file, every time core is in libc function:
Program terminated with signal 5, Trace/breakpoint trap.
#0 0x0f9a5088 in main_arena () from
/opt/aero/crosstool/gcc-4.0.3-glibc-2.3.5/powerpc-603-linux-gnu/powerpc-603-linux-gnu/lib/libc.so.6
(gdb) bt
#0 0x0f9a5088 in main_arena () from
/opt/aero/crosstool/gcc-4.0.3-glibc-2.3.5/powerpc-603-linux-gnu/powerpc-603-linux-gnu/lib/libc.so.6
#1 0x0fa602a4 in file_ctrl () from
/opt/aero/crosstool/gcc-4.0.3-glibc-2.3.5/powerpc-603-linux-gnu/powerpc-603-linux-gnu/lib/libcrypto.so.0.9.8
#2 0x10015054 in dtls_clean () at dtls.c:90
#3 0x1001560c in dtls_thread () at dtls.c:217
#4 0x0fe04f48 in pthread_start_thread () from
/opt/aero/crosstool/gcc-4.0.3-glibc-2.3.5/powerpc-603-linux-gnu/powerpc-603-linux-gnu/lib/libpthread.so.0
#5 0x0f9316f8 in clone () from
/opt/aero/crosstool/gcc-4.0.3-glibc-2.3.5/powerpc-603-linux-gnu/powerpc-603-linux-gnu/lib/libc.so.6
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
I google the main_arena function, there have many segment fault in this
function. But I don’t found the file_ctrl function with main_arena,
Is it our libc problem? Can you help me?
thanks
lei
