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Date: Wed, 06 Mar 2013 10:59:47 -0500 From: Eric Paris <eparis@...hat.com> To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: [REGRESSION] 3.9-rc1 kernel usb root hub stops working and cannot reboot I've got a Lenovo T530. Booting a 3.8 based Fedora kernel my machine works just fine. Booting a 3.9-rc1 based Fedora kernel my USB 2.0 root hub doesn't seem to notice when devices are plugged in. (The USB 3.0 root hub has no such problem) I'm assuming (maybe stupidly) it is associated with: Mar 06 09:52:35 localhost kernel: pci 0000:00:1c.0: can't find IRQ for PCI INT A; please try using pci=biosirq Mar 06 09:52:35 localhost kernel: pci 0000:00:1c.1: can't find IRQ for PCI INT B; please try using pci=biosirq Mar 06 09:52:35 localhost kernel: pci 0000:00:1c.2: can't find IRQ for PCI INT C; please try using pci=biosirq (also, funny thing, pci=biosirq is not a valid command line option, glad it told me to try that) I also notice that the 3.9 kernels cannot reboot. The kernel output the machine restart message and then just hangs forever. Again, this works just fine on the 3.8 kernels. Attached you will find my 3.8 kernel and boot log along with my 3.9 config and boot logs. Please tell me who to contact and what to collect to try/debug View attachment "config-3.8.2-201.fc18.x86_64" of type "text/x-mpsub" (125051 bytes) View attachment "config-3.9.0-0.rc1.git0.1.fc19.x86_64" of type "text/x-mpsub" (127536 bytes) View attachment "broken" of type "text/plain" (102472 bytes) View attachment "working" of type "text/plain" (185961 bytes)
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