Author Topic: ashdisp.exe kiils my cpu  (Read 22430 times)

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nomis

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ashdisp.exe kiils my cpu
« on: March 13, 2007, 10:33:34 AM »
I use AVAST server on server 2003 as Terminal Server
some times a proccess named ashdisp.exe takes all the cpu he can get and destroy all the work on the terminal by slowing him down (100% cpu), when I kill this proccess the clients can get back to work.

what can  I do to stop it ?

Offline Vlk

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Re: ashdisp.exe kiils my cpu
« Reply #1 on: March 13, 2007, 12:44:54 PM »
How many ashDisp.exe's are there running on the machine when the problem occurs?
And, are you able to re-simulate the problem?

Thanks
Vlk
If at first you don't succeed, then skydiving's not for you.

nomis

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Re: ashdisp.exe kiils my cpu
« Reply #2 on: March 13, 2007, 12:46:20 PM »
at list two, on seperated users.

Offline Vlk

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Re: ashdisp.exe kiils my cpu
« Reply #3 on: March 13, 2007, 01:30:06 PM »
OK, and only one of them takes up the CPU?

Also, are you still able to simulate the problem?


Thanks
Vlk
If at first you don't succeed, then skydiving's not for you.

nomis

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Re: ashdisp.exe kiils my cpu
« Reply #4 on: March 13, 2007, 01:45:06 PM »
sometimes only one and sometime both of them
and it happening few times over the day

Offline Vlk

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Re: ashdisp.exe kiils my cpu
« Reply #5 on: March 13, 2007, 02:32:03 PM »
Do you think you could create a memory dump of the aswDisp.exe process when the problem is happening (i.e. it's taking 100% CPU)?

To create the dump, please follow these steps:

- log on as Administrator
- download the program http://public.avast.com/~vlk/userdump.exe
- run the download program with the following parameters

userdump.exe aswDisp.exe c:\aswdisp.dmp

(or, use the PID [Process ID] if the aswDisp.exe instance that's causing the problem)

- the previous step creates file c:\aswdisp.dmp. ZIP this file (name it e.g. aswdisp-dump.zip) and upload it to ftp://ftp.avast.com/incoming .
Please note that you don't have READ access to the ftp server (only WRITE) - meaning that you won't be able to verify the upload (you won't even see the file listed).


BTW to make things a bit more responsive, it's usually useful to give the offending process "Low" priority (right-click it in the Task Manager, and choose Set Priority -> Low).

Thanks
Vlk
If at first you don't succeed, then skydiving's not for you.

nomis

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Re: ashdisp.exe kiils my cpu
« Reply #6 on: March 14, 2007, 10:34:31 AM »
it's done ,
by the way, each user open this proccess, and take around 30mb of memmory each.
and from timt to time one or teo proccess geting crazy and consume all the cpu they can.

thanks.

Offline Vlk

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Re: ashdisp.exe kiils my cpu
« Reply #7 on: March 14, 2007, 01:31:42 PM »
Hi nomis,

and thanks for the dumps.

The problem is, it really doesn't seem the process was taking CPU (i.e. was doing anything) at the time the dumps were taken. All threads are idle!
Are you sure you captured dumps from the processes that were really using the CPU?
Did you use "aswDisp.exe" on userdump's command-line, or rather the PID?

Quote
by the way, each user open this proccess, and take around 30mb of memmory each.

This is not entirely correct... The 30MB consumption is only forced after performing the memory dump, unless you do so, aswDisp's working set is quite conservative (typically ~5MB)


Thanks
Vlk
If at first you don't succeed, then skydiving's not for you.

nomis

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Re: ashdisp.exe kiils my cpu
« Reply #8 on: March 14, 2007, 01:33:58 PM »
I couldnt catch the problem alive. sorry.

Offline Vlk

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Re: ashdisp.exe kiils my cpu
« Reply #9 on: March 14, 2007, 03:03:00 PM »
So it only takes a couple of seconds?

If at first you don't succeed, then skydiving's not for you.

nomis

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Re: ashdisp.exe kiils my cpu
« Reply #10 on: March 14, 2007, 03:05:26 PM »
no it keeps eating my cpu until in end the proccess

Offline Vlk

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Re: ashdisp.exe kiils my cpu
« Reply #11 on: March 14, 2007, 09:01:21 PM »
So... it shouldn't be a problem to generate the dump at the moment the problem is happening, right? (unless I'm missing something here).

Thx
Vlk
If at first you don't succeed, then skydiving's not for you.

nomis

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Re: ashdisp.exe kills my cpu
« Reply #12 on: March 19, 2007, 02:04:24 PM »
new dump is uploded right now.

Offline Vlk

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Re: ashdisp.exe kiils my cpu
« Reply #13 on: March 19, 2007, 11:32:29 PM »
Hmm, nothing (again)... :-\ >:(
If at first you don't succeed, then skydiving's not for you.

nomis

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Re: ashdisp.exe kiils my cpu
« Reply #14 on: March 20, 2007, 08:20:26 AM »
how could it be nothing ? it takes 50% of my cpu ?