Issue with intel's cluster openmp

I'm trying to run intel's cluster openmp on my machine. For some reason it
crashes with a SIGBUS (Bus Error) when I run it on my machine. The exact same
executable with the same libraries works fine on a different one (although it
is itanium).

I'm guessing that I got some memroy configuration wrond in the kernel. I got
some reference that /proc/sys/kernel/randomize_va_space needs to be set to zero
but that doesn't seem to help.

Running the program (a very simple hello world program) through strace shows
that it's crashing at

[...]
munmap(0x7fffff7ff000, 4194304) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
sysinfo({uptime=1112, loads=[18880, 14240, 12192] totalram=2091474944, freeram=1390821376, sharedram=0, bufferram=622592} totalswap=6138953728, freeswap=6138953728, procs=122}) = 0
statfs("/tmp", {f_type=0x58465342, f_bsize=4096, f_blocks=35835794, f_bfree=12664879, f_bavail=12664879, f_files=143413184, f_ffree=142913999, f_fsid={2050, 0}, f_namelen=255, f_frsize=4096}) = 0
brk(0x248c000) = 0x248c000
open("/tmp/__itmk_swap.6482", O_RDWR|O_CREAT|O_TRUNC, 0600) = 3
unlink("/tmp/__itmk_swap.6482") = 0
lseek(3, 268435455, SEEK_END) = 268435455
write(3, "\0"..., 1) = 1
mmap(0x7fffdf3fb000, 536870912, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = 0x7fffdf3fb000
--- SIGBUS (Bus error) @ 0 (0) ---
+++ killed by SIGBUS +++

My guess is that mmpat with MAP_FIXED is what's crashing (it depends on the
program always using the same memory addresses for dynamic memory).

I'd be glad for any ideas

Thanks


--
To UNSUBSCRIBE, email to debian-user-REQUEST@xxxxxxxxxxxxxxxx
with a subject of "unsubscribe". Trouble? Contact listmaster@xxxxxxxxxxxxxxxx

Relevant Pages

  • Re: Huge slapd?
    ... mine gets up to 600+ MB before crashing with an "unable to ... > I know that the actually used memory size is the 6MB figure above, ... > does it allocate almost 150MB? ... To unsubscribe, ...
    (freebsd-stable)
  • RE: ten thousand small processes
    ... >If your going to get this serious about your memory management, ... Where is all that DRAM going? ... >I don't care much about the 3-page text segment. ... >To unsubscribe, send any mail to ...
    (freebsd-performance)
  • We keep getting these from you
    ... Subject: 1GB RAM is missing. ... that on a 32bit install you are limited to 2gb maximum of memory that can ... To UNSUBSCRIBE, email to debian-user-REQUEST@xxxxxxxxxxxxxxxx ... Trouble? ...
    (Debian-User)
  • Re: Random crashes in squeeze
    ... I have checked my memory using memtest86+, ... Host Adapter ... It can of course just be a coincidence (we'll see, if it now stops crashing for a half year I had just a stroke of bad luck). ... since the hard crashes are annoying it would be nice to figure what is causing them so I can sort my problem and maybe even help others. ...
    (Debian-User)
  • Re: Problem with mod_fcgid inside a jail.
    ... memory for size %zu byte ... I'm running FreeBSD 6.2-RELEASE, ... To unsubscribe, send any mail to ...
    (freebsd-questions)