Hi Dave,
Thanx for your time.
Ya, its a C++ aplication. I am sure it is not forking any child.
It is not waiting, infact it is consuming lots of CPU time.
Regards,
Umesh
"Webster, Dave/RMD" wrote:
>
> Hi Umesh,
>
> I've had similar problems when a process is waiting for children
> it swaned/forked off to finish, and those children hang. Can you
> check for children of the main, 'wedged' process ('pstree' or similar)?
> Although I would have assumed it's state wouldn't be running if
> it was waiting for a child to die. Also, are you sure it's the main
> processes that's 'wedged', and not a forked child of it?
>
> Cannot you kill the process with kill, kill -1, kill -14 or kill -9?
> I've not heard of too many non-zombie processess impervious to
> the kill -9 from root? Maybe you don't have correct permissions?
>
> If you've tried gdb-ing to it, it's probably a C/C++ app, not Java,
> eh? Maybe you're conditionally forking off a child process, or
> making a db connection isn't closing and your app. is patiently
> waiting.
>
> Hmmm, just some random guesses. Sorry.
>
> p.s. I've not heard the phrase 'wedged' applied to knackered
> programs before. Cool, a new term to fob annoying clients off
> with ("Sorry Gale, the program is wedged until Thursday.").
>
> -d.w.
> :-)
>
>
> -----Original Message-----
> From: Umesh Sisodia [mailto:usisodia@xxxxxxxxxxx]
> Sent: Tue 20/05/2003 12:36
> To: redhat-devel-list@xxxxxxxxxx
> Cc:
> Subject: My process wedges the machine.
>
>
>
> Hi
>
> We have recently ported our tools to Red hat linux.
> In one of our application we are facing the problem that it wedges
> the machine. Log file shows that process has completed its job, but
> then machine almost hangs.
>
> -Process cannot be killed.
> -process is in run state (not waiting on I/O)
> -process run time keeps incrementing endlessly.
> -process memory size is low (41MB)
> -gdb cannot attach to the process.
>
> This does not happen in every run, but happens randomly once in a
> while. The machine is IBM with 1xCPU (Xeon 2.4MHz) 4GB RAM running
> the RH7.3 BigMem kernel.
> Regards,
> Umesh
>
>
> --
> ******************************************************
> Umesh Sisodia (Sr. Member of technical staff)
> Cadence Design Systems, NEPZ, Noida, India
> Ph: (off) 91-120-2562842, ext. 4298
> (mobile) 98112 04168, (Res) 91-120-2578734
> email : usisodia@xxxxxxxxxxx
> ******************************************************
>
>
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******************************************************
Umesh Sisodia (Sr. Member of technical staff)
Cadence Design Systems, NEPZ, Noida, India
Ph: (off) 91-120-2562842, ext. 4298
(mobile) 98112 04168, (Res) 91-120-2578734
email : usisodia@xxxxxxxxxxx
******************************************************
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