segmentation fault...

[halida]

./nessdb_bench add        
Keys:       20 bytes each
Values:     100 bytes each
Entries:    1000000
IndexSize:  64.8 MB (estimated)
DataSize:   103.0 MB (estimated)
BG SYNC:    on...
--------------------------------------------------------------------------------------------------------------
nessDB:     version 1.7(Multiple && Distributable B+Tree with Level-LRU,Background IO Sync)
Date:       Sun Oct  9 09:30:51 2011
CPU:        2 *  AMD Athlon(tm) II X2 250 Processor
CPUCache:   1024 KB

zsh: segmentation fault  ./nessdb_bench add  

[BohuTANG]

enn,There will be a core dump when occurs "segmentation fault",with the "gdb ./nessdb_bench --core=./core",and "bt", the stack information is?

[BohuTANG]

Before that you should execute "ulimit -c unlimited" command from the terminal .

[halida]

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff79bff53 in pthread_join () from /lib/libpthread.so.0

[halida]

#0  0x00007f10a5b62f53 in pthread_join () from /lib/libpthread.so.0
#1  0x00000000004024c9 in bgsync_init () at db.c:85
#2  0x0000000000402768 in db_init (bufferpool_size=1073741824, isbgsync=1, sum=0x7fff635a95b8) at db.c:130
#3  0x0000000000401980 in db_init_test (show=0) at nessdb_bench.c:148
#4  0x0000000000402310 in main (argc=2, argv=0x7fff635a96d8) at nessdb_bench.c:331

[BohuTANG]

Try modify "#define BGSYNC (1)" to "#define BGSYNC (0)" in nessdb_bench.c source file.This means the background io flush thread is closed.

[halida]

and it works. keep it in mind that bug still exists for BGSYNC.
anyway, after I can run the test, I can start to learn nessDB now.

[BohuTANG]

HI, I had removed "pthread_join" just now,and pushed it to github.Perhaps for this reason,not sure now,glad to enjoy it!
Thanks.