[Bug 947825] yast2 kdump asks for highmem and suggests wrong values
http://bugzilla.suse.com/show_bug.cgi?id=947825 http://bugzilla.suse.com/show_bug.cgi?id=947825#c8 --- Comment #8 from Petr Tesařík <ptesarik@suse.com> --- (In reply to Petr Tesařík from comment #7)
In my test VM, I saw additional 6M used by kmalloc caches. I managed to track it down to the qxl framebuffer driver, which may allocate delayed work if called in atomic context. In my case the length of the queue was 20k+ operations. Since bitblt operations also include the bitmap data, it adds up...
Turns out this was a result of multiple chained OOM backtraces, which should never happen. Under normal circumstances, there may be a spurious backtrace in atomic context, but that needs only approx. 1M backlog buffer, which is covered by general reserve margins. In short, no special adjustments are necessary for qxl. -- You are receiving this mail because: You are on the CC list for the bug.
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