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[ts-7000] TS-7300 boots slowly due to several /sbin/hotplug usb

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Subject: [ts-7000] TS-7300 boots slowly due to several /sbin/hotplug usb
From: "Andy Mercier" <>
Date: Wed, 09 Jan 2008 19:52:44 -0000
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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