How much ram do you have on that box.
How many concurrent qmail-remotes have you configured to run?
What is your MAX_TASKS setting (and related settings) in your kernel?
Link.
At 10:40 AM 2/2/01 +0100, Paulo Jan wrote:
>Hi all:
>
> I just experienced the weirdest thing... or at least something that I
>certainly didn't expect to see in an Unix box. Let me explain:
>
> 1) I have a Red Hat Linux 6.2 as a mail server, with the 2.2.17 kernel
>and qmail 1.03. It's been working great for months, as one could expect.
> 2) Today, for reasons unrelated, I decide to stop all outgoing mail. I
>stop qmail-send and then to a "killall qmail-remote". Everything fine,
>the box is still working. (Note that I did not stop incoming mail, nor
>POP access).
> 3) Some minutes later I decide to restart qmail again. qmail-qstat says
>that there are around 250 messages in the queue, of which 140 (more or
>less) are unprocessed. I restart qmail and everything goes fine... for a
>few seconds, after which the box becomes unresponsive.
> 4) I go to the console, and see it filling up with the following
>message: "VM: do_try_to_free_pages_failed_for qmail-remote" (the wording
>may not be exact, though). I try to log in, but the machine isn't
>responding at all (just printing this message as fast as it can), and am
>finally forced to push the button and reboot (ouch).
>
