Messages in this thread | | | Subject | RE: [Bug 7505] Linux-2.6.18 fails to boot on AMD64 machine | Date | Thu, 21 Dec 2006 16:04:04 +0800 | From | "Zhang, Yanmin" <> |
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>>-----Original Message----- >>From: Andrew Morton [mailto:akpm@osdl.org] >>Sent: 2006年12月20日 18:38 >>To: Chuck Ebbert >>Cc: Yinghai Lu; ard@telegraafnet.nl; take@libero.it; agalanin@mera.ru; linux-kernel@vger.kernel.org; bugme-daemon@bugzilla.kernel.org; >>Eric W. Biederman; Zhang, Yanmin >>Subject: Re: [Bug 7505] Linux-2.6.18 fails to boot on AMD64 machine >> >>On Wed, 20 Dec 2006 04:59:19 -0500 >>Chuck Ebbert <76306.1226@compuserve.com> wrote: >> >>> > On 12/19/06, Chuck Ebbert <76306.1226@compuserve.com> wrote: >>> > > So an external interrupt occurred, the system tried to use interrupt >>> > > descriptor #39 decimal (irq 7), but the descriptor was invalid. >>> > >>> > but the irq is disabled at that time. >>> > >>> > can you use attached diff to verify if the irq is enable somehow? >>> >>> But it seems interrupts are on--look at the flags: >>> >>> RSP: 0018:ffffffff803cdf68 EFLAGS: 00010246 >>> >> >>down_write()->__down_write()->__down_write_nested()->spin_unlock_irq()->dead >> >>Could someone please test this? I couldn't reproduce it on my EM64T machine. I instrumented function start_kernel and didn't find irq was enabled before calling init_IRQ. It'll be better if the reporter could instrument function start_kernel to capture which function enables irq. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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