TryToStart Invalid argument 22Aborted

[GoogleCodeExporter]

KFS 0.5/Debian squeeze/mipsel/2.6.32-5-4kc-malta/PAGESIZE=4096

metaserver and kfsping exited with the error message as follows:
TryToStart Invalid argument 22Aborted

In src/cc/qcdio/qcthread.cpp:106
if (inStackSize > 0 && (theErr = pthread_attr_setstacksize(
            &theStackSizeAttr, inStackSize)) != 0)

pthread_attr_setstacksize failed when inStackSize is 32KB. I wrote a small test 
program:
    pthread_attr_getstacksize(&a, &n);
    printf("%d\n", n);
    for (n = 16384; n <= 256 * 1024; n *= 2)
        printf("%d\t%d\n", n, pthread_attr_setstacksize(&a, n));

On x86:
8388608
16384   0
32768   0
65536   0
131072  0
262144  0

On the machine:
8388608
16384   22
32768   22
65536   22
131072  0
262144  0

I knew that's not KFS' fault, but 128KB seems to be more adaptable. 

`man pthread_attr_setstacksize`:
pthread_attr_setstacksize() can fail with the following error:
EINVAL The stack size is less than PTHREAD_STACK_MIN (16384) bytes.

On some systems, pthread_attr_setstacksize() can fail with the error EINVAL if 
stacksize is not a multiple of the system page size.

Original issue reported on code.google.com by lgh.h...@gmail.com on 25 Jul 2012 at 10:45