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mm, oom: describe task memory unit, larger PID pad
The default page memory unit of OOM task dump events might not be intuitive and potentially misleading for the non-initiated when debugging OOM events: These are pages and not kBs. Add a small printk prior to the task dump informing that the memory units are actually memory _pages_. Also extends PID field to align on up to 7 characters. Reference https://lkml.org/lkml/2018/7/3/1201 Link: http://lkml.kernel.org/r/c795eb5129149ed8a6345c273aba167ff1bbd388.1530715938.git.rfreire@redhat.com Signed-off-by: Rodrigo Freire <[email protected]> Acked-by: David Rientjes <[email protected]> Acked-by: Rafael Aquini <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Tetsuo Handa <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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