From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] mmap and malloc questions on IA-64 linux
Date: Thu, 01 Aug 2002 18:09:30 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590701905878@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590701905877@msgid-missing>
>>>>> On Thu, 1 Aug 2002 09:47:37 -0700, "Olivier, JeffreyX" <jeffreyx.olivier@intel.com> said:
Olivier> For a shared heap size of 1.2 GB, the application runs but
Olivier> it fails to complete. One of the mallocs complains that it
Olivier> the system is out of memory.
Find out why the malloc is complaining. It could be that something
got mmap'ed relatively close to the break value. If so, attempting a
(small) malloc might cause the break value to cross into the mmaped
area, which would cause it to fail.
To track this down, I'd recommend to look at:
- /proc/PID/maps (where PID is the process ids of the "interesting"
tasks)
- the output of free
Hope this helps,
--david
next prev parent reply other threads:[~2002-08-01 18:09 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-01 16:47 [Linux-ia64] mmap and malloc questions on IA-64 linux Olivier, JeffreyX
2002-08-01 18:09 ` David Mosberger [this message]
2002-08-02 15:25 ` Olivier, JeffreyX
2002-08-02 21:08 ` David Mosberger
2002-08-05 15:40 ` Olivier, JeffreyX
2002-08-05 20:31 ` David Mosberger
2002-08-05 21:01 ` Matthew Wilcox
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