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Message #116642
[Bug 1318040] Re: bbswitch prevents suspend and taints kernel
This problem may occur when your compiler (gcc) is different than the
one used to compile the kernel. Have you installed an older gcc version
(maybe via CUDA?). What does `gcc -v` show?
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https://bugs.launchpad.net/bugs/1318040
Title:
bbswitch prevents suspend and taints kernel
Status in bbswitch package in Ubuntu:
New
Bug description:
When initiating suspend (to RAM), the kernel gets tainted. This is a
regression that appeared after upgrading from Kubuntu 13.10 to 14.04.
My computer has a discrete nVidia G210M card (hybrid SLI system, on
ASUS UL80VT). Here is an extract from dmesg:
PM: Preparing system for mem sleep
BUG: unable to handle kernel NULL pointer dereference at 00000000000000b8
IP: [<ffffffff8139ba5b>] pci_bus_read_config_dword+0x4b/0x90
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ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: KDE
DistroRelease: Ubuntu 14.04
InstallationDate: Installed on 2010-01-19 (1571 days ago)
InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
Package: bbswitch-dkms 0.7-2ubuntu1
PackageArchitecture: amd64
ProcVersionSignature: Ubuntu 3.13.0-26.48-generic 3.13.11
Tags: trusty
Uname: Linux 3.13.0-26-generic x86_64
UpgradeStatus: Upgraded to trusty on 2014-05-07 (2 days ago)
UserGroups: adm admin audio bumblebee cdrom dialout fuse lpadmin plugdev sambashare src users vboxusers
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