Impact: Sandy Bridge platforms with a small normal zone can apparently lockup when copying from a fast I/O source to a slower I/O destination, e.g., disk to USB stick.
Patch Description: A number of upstream changes have made accommodation for how pages are allocated when the normal zone is exhausted.
SRU Justification
Impact: Sandy Bridge platforms with a small normal zone can apparently lockup when copying from a fast I/O source to a slower I/O destination, e.g., disk to USB stick.
Patch Description: A number of upstream changes have made accommodation for how pages are allocated when the normal zone is exhausted.
Patch: See the list of commits in https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/808509/ comments/ 5