lkml.org 
[lkml]   [2005]   [Mar]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
Subject/proc/$pid/mem
Aloha!

I know it has been discussed before, but I must express my feelings
about this issue nonetheless. I find it a major pain in the back that
/proc/$pid/mem isn't readable by an unrelated process without doing a
PTRACE_ATTACH first.

I mainly want to ask: is there a good reason to not drop this restriction?

I can read all the machine's physical memory and all of the kernel's
address space (/dev/mem, /proc/kcore) non-intrusively, but I can't do
the same on a single process. It seems to me that /proc/$pid/mem should
work analogous to /dev/mem or /proc/kcore, but currently in practice it
doesn't, and I don't see a good reason why it is supposed to be that way.

Cheers
Richard
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:11    [W:0.061 / U:0.264 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site