** Description changed: - CONFIG_PCIEASPM_DEBUG (which is currently disabled for Ubuntu kernels) - can be used to enable/disable ASPM settings per PCIE device. - CONFIG_PCIEASPM (which is enabled for Ubuntu kernels) allows only to set - global ASPM policy. BIOSes on more machines are buggy and lot of times - do not configure ASPM for PCIE device property. CONFIG_PCIEASPM_DEBUG - option allows users or testers to hotfix potential bugs in BIOS... That - config option only add new sysfs files so it should not break anything - else in kernel. + [Impact] + CONFIG_PCIEASPM_DEBUG (which is currently disabled for Ubuntu kernels) can be used to enable/disable ASPM settings per PCIE device. CONFIG_PCIEASPM (which is enabled for Ubuntu kernels) allows only to set global ASPM policy. BIOSes on more machines are buggy and lot of times do not configure ASPM for PCIE device property. CONFIG_PCIEASPM_DEBUG option allows users or testers to hotfix potential bugs in BIOS... That config option only add new sysfs files so it should not break anything else in kernel. + + [Test Case] + Try to use PCIe ASPM sysfs debug interface. + + [Fix] + Enable CONFIG_PCIEASPM_DEBUG + vivid discussion: https://lists.ubuntu.com/archives/kernel-team/2014-December/051914.html + + --
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1398544 Title: Please enable CONFIG_PCIEASPM_DEBUG Status in linux package in Ubuntu: Fix Released Status in linux source package in Trusty: New Status in linux source package in Utopic: New Status in linux source package in Vivid: Fix Released Bug description: [Impact] CONFIG_PCIEASPM_DEBUG (which is currently disabled for Ubuntu kernels) can be used to enable/disable ASPM settings per PCIE device. CONFIG_PCIEASPM (which is enabled for Ubuntu kernels) allows only to set global ASPM policy. BIOSes on more machines are buggy and lot of times do not configure ASPM for PCIE device property. CONFIG_PCIEASPM_DEBUG option allows users or testers to hotfix potential bugs in BIOS... That config option only add new sysfs files so it should not break anything else in kernel. [Test Case] Try to use PCIe ASPM sysfs debug interface. [Fix] Enable CONFIG_PCIEASPM_DEBUG vivid discussion: https://lists.ubuntu.com/archives/kernel-team/2014-December/051914.html -- To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1398544/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
