iu-parfunc / cilk_tests Goto Github PK

We can add this more svelt version (without the big data files) as a submodule:

https://github.com/iu-parfunc/pbbs

How to reproduce

make and run ./server.exe in a separate command line.
Now ./distfib.exe

gdb ./distfib.exe output

Program received signal SIGSEGV, Segmentation fault.
__cilkrts_ivar_read (ivar=0x60fa48)
at /u/budkahaw/Builds/ccilk/runtime/ivar_full_blocking.c:59
59 w->paused_ctx = &ctx;
(gdb) bt
#0 __cilkrts_ivar_read (ivar=0x60fa48)

at /u/budkahaw/Builds/ccilk/runtime/ivar_full_blocking.c:59

#1 0x00007ffff7ba5a1e in cilk_write (fd=,

buf=<value optimized out>, len=8)
at /u/budkahaw/Builds/ccilk/runtime/io/concurrent_cilk_io.c:246

#2 0x0000000000401a1a in runMap ()
#3 0x0000000000401623 in distPfib ()
#4 0x0000000000401514 in main ()

Valgrind output

==27916== Invalid write of size 8
==27916== at 0x4E7418E: __cilkrts_ivar_read (ivar_full_blocking.c:59)
==27916== by 0x4E74A1D: cilk_write (concurrent_cilk_io.c:246)
==27916== by 0x401A19: runMap (in /nfs/nfs4/home/budkahaw/Builds/ccilk/cilk_tests/cilk_io/distfib/distfib.exe)
==27916== by 0x401622: distPfib (in /nfs/nfs4/home/budkahaw/Builds/ccilk/cilk_tests/cilk_io/distfib/distfib.exe)
==27916== by 0x401513: main (in /nfs/nfs4/home/budkahaw/Builds/ccilk/cilk_tests/cilk_io/distfib/distfib.exe)
==27916== Address 0x70 is not stack'd, malloc'd or (recently) free'd
==27916==
==27916==
==27916== Process terminating with default action of signal 11 (SIGSEGV)
==27916== Access not within mapped region at address 0x70
==27916== at 0x4E7418E: __cilkrts_ivar_read (ivar_full_blocking.c:59)
==27916== by 0x4E74A1D: cilk_write (concurrent_cilk_io.c:246)
==27916== by 0x401A19: runMap (in /nfs/nfs4/home/budkahaw/Builds/ccilk/cilk_tests/cilk_io/distfib/distfib.exe)
==27916== by 0x401622: distPfib (in /nfs/nfs4/home/budkahaw/Builds/ccilk/cilk_tests/cilk_io/distfib/distfib.exe)
==27916== by 0x401513: main (in /nfs/nfs4/home/budkahaw/Builds/ccilk/cilk_tests/cilk_io/distfib/distfib.exe)