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Date: Fri, 25 Jun 2004 12:43:17 +0200
From: Arjan van de Ven <arjanv@redhat.com>
To: Norbert Preining <preining@logic.at>
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org,
       Ingo Molnar <mingo@elte.hu>
Subject: Re: 2.6.7-mm2, mmaps rework, buggy apps, setarch
Message-ID: <20040625104317.GB20954@devserv.devel.redhat.com>
References: <20040625082243.GA11515@gamma.logic.tuwien.ac.at> <20040625013508.70e6d689.akpm@osdl.org> <20040625103326.GA21814@gamma.logic.tuwien.ac.at>
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On Fri, Jun 25, 2004 at 12:33:26PM +0200, Norbert Preining wrote:
> On Fre, 25 Jun 2004, Andrew Morton wrote:
> > > But what to do with a commerical app where I
> > > cannot check a stack trace or whatever?
> > 
> > Use strace -f, look at the last screenful of output.  That usually works.
> 
> open("/media4/scan/cam-2002.03/001-100/raw/scan0100.tif", O_RDONLY) = 6
> lseek(6, 0, SEEK_END)                   = 43426634
> lseek(6, 0, SEEK_CUR)                   = 43426634
> lseek(6, 0, SEEK_SET)                   = 0
> mmap2(NULL, 43426634, PROT_READ|PROT_WRITE, MAP_PRIVATE, 6, 0) = -1 ENOMEM (Cann
> ot allocate memory)

interesting.

Could you start the binary in gdb, and then when the segfault happens, take
a snapshot of /proc/<pid>/maps of this binary ?

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