Dear Subrata,
I have downloaded the code(shmem_test_07.c) from the following URL
http://ltp.cvs.sourceforge.net/ltp/ltp/testcases/kernel/ipc/ipc_stress/
Alternate Link
http://ltp.cvs.sourceforge.net/ltp/ltp/testcases/kernel/ipc/ipc_stress/shmem_test_07.c?view=markup
If I am trying to execute it as follows
./shmem_test_07 -c 10 -g 3 -s 10 (This works fine)
At the same time when I am trying to execute it as follows:
./shmem_test_07 -c 10 -g 4 -s 10 (This gives me segmentation fault).
Please see the difference in both the command line option. If you increase the
limit of num_writers( -g option) to 4 or more, it fails but at the same time if
num_writers is less than or equal to 3 it works fine me.
I have downloaded the code and splitted the functions in separate files as
follows:
int main (.., ..) to main.c
void *writer (..) to writer.c
void *reader (..) to reader.c
void parse_args (..) to parseargs.c (it includes all other functions like
release(), sys_error() and error())
I have compiled the source code and tried to execute the program. This works
absolutely fine (./shmem -c 300 -g 3 -s 100). But it doesn't work even (./shmem
-c 10 -g 4 -s 10).
I think the problem is with num_writers option and I am unable to fix it, also
if it's working on Linux it should work on AIX as well. (I don't think this is
OS specific problem).
Could you please look into it and let me know how to resolve it, Thanks a lot
for your time and effort.
skumar
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