Date: Fri, 13 Sep 2013 13:51:43 -0600 From: Ian Lepore <ian@FreeBSD.org> To: Adrian Chadd <adrian@FreeBSD.org> Cc: "freebsd-arm@freebsd.org" <freebsd-arm@FreeBSD.org>, Ronald Klop <ronald-freebsd8@klop.yi.org> Subject: Re: Panic while building perl on sheevaplug/armv5 freebsd 10. Message-ID: <1379101903.1111.644.camel@revolution.hippie.lan> In-Reply-To: <CAJ-Vmo=tP0N5iQwO%2BNbxgyT=VDtAJm6oKSWyYR_r-BA65XHJ0Q@mail.gmail.com> References: <op.w3cpl1ua8527sy@212-182-167-131.ip.telfort.nl> <1379080987.1111.637.camel@revolution.hippie.lan> <0D9A93F9-E4F1-4D78-BA8B-809169AE450D@bsdimp.com> <CAJ-Vmo=tP0N5iQwO%2BNbxgyT=VDtAJm6oKSWyYR_r-BA65XHJ0Q@mail.gmail.com>
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On Fri, 2013-09-13 at 12:44 -0700, Adrian Chadd wrote: > .. don't we have a guard page on ARM/MIPS so we can trap out whenever that > occurs? > > That way we can at least try to identify where people have made some "huh > we're running on amd64, stack space is cheap huh" assumptions? > A "page-not-mapped" fault with a stack-looking address (0xddf9d000) is what happened -- my theory is that we hit the guard page. -- Ian
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