Am Montag, den 06.12.2010, 22:15 -0700 schrieb Bjorn Helgaas: > In addition to the isolation ideas I suggested above, you might > boot with "maxcpus=1" and turn on all the Kconfig memory debug > switches. Booting with mminit_loglevel=4 maxcpus=1 causes this to show up: [ 17.364026] usb 1-6: device descriptor read/64, error -110 [ 32.579024] usb 1-6: device descriptor read/64, error -110 [ 32.794012] usb 1-6: new high speed USB device using ehci_hcd and address 6 [ 47.907019] usb 1-6: device descriptor read/64, error -110 [ 63.121019] usb 1-6: device descriptor read/64, error -110 [ 63.335022] usb 1-6: new high speed USB device using ehci_hcd and address 7 [ 73.748031] usb 1-6: device not accepting address 7, error -110 [ 73.861018] usb 1-6: new high speed USB device using ehci_hcd and address 8 [ 84.274018] usb 1-6: device not accepting address 8, error -110 [ 84.285143] hub 1-0:1.0: unable to enumerate USB device on port 6 I have nothing connected to 1-6: Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 003: ID 046d:c20a Logitech, Inc. WingMan RumblePad Bus 004 Device 002: ID 03eb:3301 Atmel Corp. at43301 4-Port Hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 003: ID 046d:c062 Logitech, Inc. Bus 002 Device 002: ID 413c:2105 Dell Computer Corp. Model L100 Keyboard Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 005: ID 0dda:2026 Integrated Circuit Solution, Inc. USB2.0 Card Reader Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub It shows up at the same time as the crash happens without maxcpus. However SysRq does work in this case. -Tobias -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
