How can I read from /proc/xx/mem?

Philipp Reisner (e9525415@student.tuwien.ac.at)
Fri, 31 Oct 1997 00:13:14 +0100

Hi,

I want to compare the VM seen by two processes, and I assumed
I can do this by :
1) creating two child processes
2) opening their /proc/xx/mem 'file'
3) seeking to ELF_START_MMAP + 0x48000
4) read & compare
But I always get ESRCH (=No such process).

I even tried to patch /fs/proc/mem.c, I removed
Line 69 to 74 (2.0.31) but still, it is not working

Thank you for any hints
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Philipp Reisner E-Mail mailto:e9525415@student.tuwien.ac.at