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Message-ID: <20070913171349.GD26213@lnx-holt.americas.sgi.com> Date: Thu, 13 Sep 2007 12:13:49 -0500 From: Robin Holt <holt@....com> To: Chuck Ebbert <cebbert@...hat.com> Cc: Robin Holt <holt@....com>, Mikael Pettersson <mikpe@...uu.se>, Jeff Garzik <jeff@...zik.org>, linux-kernel@...r.kernel.org Subject: Re: Possible hang inside interrupt handler on sata_promise. Is there any way on typical motherboards to send an NMI? On Altix boxes, we can use the system controller to send an NMI. I have found some motherboards appear to have an NMI line. Is there anything like that on i386? Maybe I am missing the issue entirely. Does deadlock inside an IRQ handler seem plausible? On a side note, I have reproduced the hang with a different storage device (ide). At the time, I have deactivated the volume group, stopped the raid device and unloaded the sata_promise module. I also noticed that uhci_hcd and eth1 (3com 3c59x module) are sharing IRQ 5 so I had unloaded the uhci_hcd and usbcore before the last test. On Thu, Sep 13, 2007 at 11:59:25AM -0400, Chuck Ebbert wrote: > There is a list of kernel options you can try, including: > > noapic > nolapic > pci=nomsi,nommconf > pci=noacpi I will try these this evening. Thanks, Robin - 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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