On Thu, 08 Jan 2015 18:09:19 +0900, manty kuma said: > Suppose, I have a kernel virtual address. Can I know which is the process > that last used this address?
In general, no. First off, there's no good definition of "used" - if an address is pointing to (for instance) the inode for /dev/null, what does "used" mean? And more importantly, there's no hardware support for telling what kernel routines accessed a given address (unless you want to use kgdb-ish techniques for trapping on memory access - which gets *painful* if you have more than a few dozen points of interest). Second, it's quite possible that the most recent access was from a non-process context like a hardIRQ or something. What problem are you trying to solve here?
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