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Re: /proc/*/cmdline corrupted
On 10/13/2011 11:02 AM, Jon Clugston wrote:
On Wed, Oct 12, 2011 at 11:07 AM, Jon Clugston<email@example.com> wrote:
While not an answer to your question, why not just put the following in
When I run "procps -ef" I get corrupted command line parameters:
UID PID PPID C STIME TTY TIME CMD
jc807j 5852 1 0 08:59 tty0 00:00:03 X :0 -multiwindow
jc807j 2668 1 0 08:59 tty0 00:00:00 xterm -e ssh server
80x72+285+0 -e ssh server
jc807j 3004 1 0 08:59 tty0 00:00:00 xterm -e ssh server
80x72-8+0 -e ssh server
jc807j 3392 3004 0 08:59 tty0 00:00:00 ssh server
jc807j 5960 2668 0 08:59 tty1 00:00:00 ssh server
jc807j 2928 5852 0 09:12 ? 00:00:00 xterm 20000 +tb
jc807j 4608 2928 0 09:12 tty2 00:00:00 bash
jc807j 5800 4608 1 10:57 tty2 00:00:00 procps -ef
The actual command lines for the 3 xterm processes are:
C:\cygwin\bin\xterm.exe -sl 20000 +tb -geometry 80x72+285+0 -e ssh server
C:\cygwin\bin\xterm.exe -sl 20000 +tb -geometry 80x72-8+0 -e ssh server
C:\cygwin\bin\xterm.exe -sl 20000 +tb
as reported by the "listdlls" tool.
I have verified that the "/proc/*/cmdline" is the source of the
corrupted information. "cmdline" from PID 2928 is:
jc807j@~>od -c /proc/2928/cmdline
0000000 x t e r m \0 \0 2 0 0 0 0 \0 + t b
I am able to reproduce the problem by simply executing the following
xterm -sl 20000 +tb -geometry 80x72+285+0 -e ssh server
(obviously w/ X running). I wrote a simple shell script which does
nothing except sleep and I called it with the same command line
parameters and it didn't have the problem. So, it appears that the
problem is related to "xterm" or something that "xterm" does.
I also shortened/simplified the command line (to "xterm") and it was
still corrupted (the "-sl" was missing):
xterm -sl 20000 +tb -geometry 80x72+285+0
I tried to reproduce by creating long command lines to other commands
and none were corrupted.
Does "xterm" step on its command line?
and invoke xterm with:
$ xterm -name serverTerm -e ssh server
and be done with it?
Andrew DeFaria <http://defaria.com>
You know how it is when you're walking up the stairs, and you get to the
top, and you think there's one more step? I'm like that all the time.
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