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Date: Fri, 12 Jan 2007 07:05:09 -0700 From: ebiederm@...ssion.com (Eric W. Biederman) To: Dan Aloni <da-x@...atomic.org> Cc: Linux Kernel List <linux-kernel@...r.kernel.org>, Greg KH <gregkh@...e.de>, linux-usb-devel@...ts.sourceforge.net Subject: Re: kexec + USB storage in 2.6.19 Dan Aloni <da-x@...atomic.org> writes: > Hello, > > After upgrading from 2.6.18.3 to 2.6.19.2 on an x86_64 machine I noticed > that the EHCI USB host is unable to work properly after a kexec invocation. > This makes it impossible to mount the rootfs in the configuration I'm using. > > According to the prints, the irq changes from 23 to 10. > > NOTE: Since the device is already connected at boot, I've added a patch > that disables the scanning delay for the first detected device, in order > to shorten the time it takes for the boot process. It worked on 2.6.18.3, > so I wonder what has changed... At first glance it looks like acpi didn't come on in the kexec'd kernel. Do you see anything like the line below. > [ 78.139976] ACPI: PCI Interrupt 0000:00:1d.7[D] -> GSI 23 (level, low) -> IRQ Could your provide the full bootlogs instead of these partial ones? There is enough context missing I don't think anyone can do more than agree you are seeing a problem. Eric - 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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