https://bugzilla.kernel.org/show_bug.cgi?id=55611
Summary: Sony VAIO VPCZ23A4R: warning and/or panics on docking
Product: ACPI
Version: 2.5
Kernel Version: 3.8.2
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Config-Hotplug
AssignedTo: acpi_config-hotp...@kernel-bugs.osdl.org
ReportedBy: patra...@gmail.com
Regression: No
I have a Sony VAIO VPCZ23A4R laptop. It comes with a docking station that
contains some PCI Express devices: the second video card, the second Ethernet
controller, a Marvell ATA controller with a BluRay writer attached, and some
USB controllers.
If I boot the laptop without the docking station and then connect it, the
following bugs occur:
1. When docking, the kernel does not understand that it has to rescan the PCI
bus.
2. When told to rescan (echo 1 > /sys/class/pci_bus/0000\:00/rescan) it emits a
lot of warnings and sometimes panics due to the radeon driver.
3. When undocking, the kernel does not understand that it needs to forget about
the PCI devices in the dock station. In fact, undocking fails.
I will attach logs to this bug.
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