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Message-ID: <47B212DA.3010503@zytor.com> Date: Tue, 12 Feb 2008 13:42:50 -0800 From: "H. Peter Anvin" <hpa@...or.com> To: maximilian attems <max@...o.at> CC: 464962@...s.debian.org, Joey Hess <joeyh@...ian.org>, Ingo Molnar <mingo@...hat.com>, Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org Subject: Re: Bug#464962: immediate crash on boot on TM5800 maximilian attems wrote: > On Tue, Feb 12, 2008 at 01:14:04PM -0800, H. Peter Anvin wrote: >> Are you sure that build matches the bug report? > > urrgs right sorry, the posted vmlinux is a newer > 2.6.24-git22 and not Version: 2.6.24-3 > >> The EIP given falls inside the .data segment of that kernel, >> specifically inside the symbol init_task. >> >> -hpa > > will rebuild aboves. Okay, the faulting instruction is the following: c0383360: 0f 1f 40 00 nopl 0x0(%eax) The Crusoe code morphing software apparently doesn't recognize these "long noops", and (presumably) the rest of the hinting NOOP group. gcc didn't use to generate them, and Crusoe/Efficeon generally do not benefit from code alignment anyway. I suspect the best thing to do is to use either a 586 kernel or build a dedicated Crusoe kernel without code alignment. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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