Hi
Using valgrind to detect the problem, I see many messages like this:
==4513== Warning: invalid file descriptor 4546 in syscall close()
==4513== Warning: invalid file descriptor 4567 in syscall close()
==4513== Warning: invalid file descriptor 4567 in syscall close()
==4513== Warning: invalid file descriptor 1029 in syscall open()
...
==4513== Invalid read of size 1
==4513== at 0x40D7897: fclose@@GLIBC_2.1 (iofclose.c:52)
==4513== by 0x804DAFC: fetch_thread (fetch.c:275)
==4513== by 0x804E4F8: fetch_core (fetch.c:394)
==4513== by 0x804E7D7: p_fetch (fetch.c:451)
==4513== by 0x8056B9C: p_stages (processor.c:664)
==4513== by 0x805083E: main (m2s.c:223)
==4513== Address 0x46 is not stack'd, malloc'd or (recently) free'd
==4513==
==4513==
==4513== Process terminating with default action of signal 11 (SIGSEGV)
==4513== Access not within mapped region at address 0x46
==4513== at 0x40D7897: fclose@@GLIBC_2.1 (iofclose.c:52)
==4513== by 0x804DAFC: fetch_thread (fetch.c:275)
==4513== by 0x804E4F8: fetch_core (fetch.c:394)
==4513== by 0x804E7D7: p_fetch (fetch.c:451)
==4513== by 0x8056B9C: p_stages (processor.c:664)
==4513== by 0x805083E: main (m2s.c:223)
==4513== If you believe this happened as a result of a stack
==4513== overflow in your program's main thread (unlikely but
==4513== possible), you can try to increase the size of the
==4513== main thread stack using the --main-stacksize= flag.
==4513== The main thread stack size used in this run was 8388608.
I have defined two macros like this:
FILE *f;
#define OPEN_LOG f = fopen("log.txt", "a+")
#define CLOSE_LOG fclose(f)
The line where segmentation fault occurred (fetch.c:275) is:
CLOSE_LOG
I searched a lot to find out what does "invalid file descriptor N
in syscall close" mean but didn't find anything clear.
Any comment? thanks
/ Naderan *Mahmood;
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