news: Linux Kernel testing continues

We keep testing current -git releases and 2.6.31 seems stable for most of our test cases. We submitted a fix for a memory leak in nfsd which was reported by kmemleak. Kmemleak hooks kmalloc, kfree and friends to track every memory allocation and deallocation. It periodically scans the kernel memory (allocated memory and the stacks of kernel threads) to check if there is still a pointer referencing the objects. If there is no pointer to one of the objects the code location (and stacktrace) where it was allocated along with a message is reported trough sysfs.

Another fix we submitted is for a corner case in EXT4, where the code tried to access the journal when generating an error message. The problem was triggered with a corrupt filesystem, where the journal could not be loaded during mount time and another corruption triggered the oops in the error message.

Apart from this, several other bugs got reported by us among them a lockdep miss-annotation in the tee system call which already got fixed.