THATS EXACTLY MY PROBLEM - a "sometimes" slow boot up on a 7300.
Those usb agents are SUPPOSED to spawn when a NEW device is added.
Tonight I was trying to solve this problem, but one time I actually
had it in a perpetual loop re-spawning the agents continuously.
After 15 minutes it still had 12 or so of them running.
The most annoying thing is that the behavior is NOT consistant. The
type/brand of devices does not seem to make much difference
(according to my tests).
so, here are some observations that may be of interest to you:
1. A hub will almost always slow it down. If you have ONLY 2
devices plugged into the 7300 it's not bad at all. But, even 6 or 4
port mini-hubs will usually DOUBLE the slowdown - or worse. My 4
port hub is a "little" less noticable than the 6 port.
2. The top and bottom port on the 7300 are NOT exactly the same in
some respects. I find that mounting flash drives always works when
using the lower port. But, I have had LOTS of times where I simply
could not use any flash drive in the top port.
3. I have found that it is better to let the USB agents run in
the "quickboot" mode. I just let all of the usb-stuff get sorted
before I type "exit". The overall boot time is actually better
than just letting it jump into the SD card boot sequence.
I wonder if there are any PC104 add-on cards that work with the 7300.
Nowadays, USB is a nessesity for any system - and just two ports is
not enough.
Thanks for the great forum, everybody.!
--- In "Andy Mercier" <>
wrote:
>
> Hi,
>
> I've noticed that the two TS-7300s we have will occasionally boot up
> extremely slow and other times boot up faster.
>
> They are both booting from the SD card and there are no jumpers on
> JP1-6 and we use the VGA video. The SD cards are loaded with Debian
> 3.1 (Sarge) and they're in the stock configuration from Technologic
> Systems. The slowness is noticeable very early in the boot process.
>
> Fortunately, there may be a hint to what's going on since we're able
> to log in and check which processes are running. Here's the result
of
> a "ps axf" command (edited to just show the commands running and
their
> relationships):
>
> [keventd]
> \_ /bin/sh /sbin/hotplug usb
> | \_ /bin/sh /etc/hotplug/usb.agent
> \_ /bin/sh /sbin/hotplug usb
> | \_ /bin/sh /etc/hotplug/usb.agent
> | \_ /bin/sh /etc/hotplug/usb.agent
> \_ /bin/sh /sbin/hotplug usb
> | \_ /bin/sh /etc/hotplug/usb.agent
> \_ /bin/sh /sbin/hotplug usb
> \_ /bin/sh /etc/hotplug/usb.agent
>
> Eventually they go away but the system runs slowly until they're
gone.
> We can kill them and it doesn't appear to interfere with anything.
> BTW, the PIDs for many of the user processes are really high when we
> check ps, values that are 18000+. It appears something is "spawning"
> processes like crazy!
>
> The uptime command shows just how much load created since I got high
> numbers like 4.43.
>
> We've tried different keyboards and mice and it doesn't affect the
> frequency that this happens.
>
> We'd rather not have these running during boot up since it appears
> unnecessary and slows the system down. Any thoughts on a fix?
>
> ----
> Andy
>
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