Hello Michael, A patch follows which adds some information on using /proc/buddyinfo to diagnose memory fragmentation issues. The most popular information online on this ticket is in the Redhat deployment guide [1] which actually got part of the formula wrong [2]. Comments welcome but I mainly tried to focus on the contents on the file and not on the background of the underlying algorithm and kernel functions like get_free_pages(), dma_alloc_coherent() and friends. [1] https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6-Beta/html/Deployment_Guide/s1-proc-topfiles.html#s2-proc-buddyinfo [2] https://bugzilla.redhat.com/show_bug.cgi?id=1131498 my 2 cents E. Elie De Brauwer (1): proc.5: Adding /proc/buddyinfo man5/proc.5 | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) -- 2.1.0 -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html