Re: fio 2.1.4 intermittently crashes on windows

[Sitsofe Wheeler <sitsofe@yahoo.com>]

On Thu, Jan 09, 2014 at 01:07:56AM +0000, Elliott, Robert (Server Storage) wrote:
> I've seen something similar:
> - 2.1.4 on a Windows Server 2008 R2 system: crash
> 
> This is this error for 2.1.4 on Windows Server 2008 R2: 

<snip>

> (gdb) f 2
> #2  0x0000000000421599 in fio_mutex_up (mutex=0x2f5b10) at mutex.c:151
> 151     mutex.c: No such file or directory.
> (gdb) p mutex
> $1 = (struct fio_mutex *) 0x2f5b10
> (gdb) p *mutex
> $2 = {lock = 0x1bab1f00d, cond = 0x100000000, value = 0, waiters = 0, magic = 172}

This is crazy - the magic value is 172 rather than 1297437765 but the
fio_mutex_up() function is protected by an assert that checks to see if
the mutex's magic number is wrong. Could you can insert something like
the following after line 149:
assert(mutex->magic == FIO_MUTEX_MAGIC);
to prove that the value has not been stomped on before
pthread_cond_signal is run?

-- 
Sitsofe | http://sucs.org/~sits/