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From: "linda w \(cyg\)" <cygwin AT tlinx DOT org>
To: <cygwin AT cygwin DOT com>
Subject: can jam WinXP-SP1 too (was RE: I can jam WIN 2000 in a few minutes  - can you?)
Date: Wed, 9 Apr 2003 13:14:39 -0700
Message-ID: <001401c2fed4$a6171e50$1403a8c0@sc.tlinx.org>
Importance: Normal
In-Reply-To: <20030325224657.28509.qmail@web10009.mail.yahoo.com>

Sorta an old topic...but was cleaning out mailboxes and this caught my
attention.

First time got to iteration #186, then #276, right now its running
and up over #700 and still no crash...very weird.
I'm watching system resource page in task manager...
I'm on at about 30% commit usage, and 60% physmem usage.  Very strange.

I get popup messages about out of resources or seg-fault when it dies.
Seems very much like that "Windows can't handle fragmented memory" bug
I've run into in different ways.

It behaves like it can't satisfy a memory request because memory is too
fragmented, but rerunning the command works fine -- as though a memory
cleanup manager is called and it runs and defragments memory so requests
can be satisfied.

Very very interesting!
-linda

p.s. it finally just died...this time at iteration 1319.


> -----Original Message-----
> From: cygwin-owner AT cygwin DOT com
> [mailto:cygwin-owner AT cygwin DOT com] On Behalf Of Mike W.
> Sent: Tue, Mar 25, 2003 2:47p
> To: cygwin AT cygwin DOT com
> Subject: I can jam WIN 2000 in a few minutes- WITHOUT CYGWIN
> !!!! - can you?
>
>
> Ha Ha!
>
> The bug I have been digging into (with my Dell laptop)
> that I first saw in cygwin also manifests from the
> Win2000 command prompt, with no involvement by cygwin
> at all.
>
> Soooooo................
>
> What list do people suggest I go to with this Win 2000
> bug?
>
> Any suggestions?
>
> Here is the WIN script I used, called win_crashme.cmd:
>
> echo off
> pslist | grep Pid
> :top
> pslist pslist | grep pslist
> goto top
>
> and here was the command I used to jam Win2000:
>
> win_crashme > w1.txt 2>&1
>
>
> where pslist.exe is from the pstools distribution of
> Mark Russinovich of www.systeminternals.com, and grep
> is a free version off the web-
>
> The loop ran about 4000 iterations in less than 5
> minutes and jammed WIN so well that I took the battery
> out.  The high PID appeared to lead to the jam.  The
> PID did not increase monotonically, just damn close.
> Here are a few groups of consecutive lines of just the
> process name and PID (= WINPID):
>
>
> Name	Pid
> pslist	400
> pslist	2052
> pslist	2888
> pslist	1984
> pslist	3480
> pslist	3552
> pslist	3568
> pslist	3572
> pslist	3584
> pslist	3592
> pslist	3600
> ...
> pslist	33188
> pslist	33196
> pslist	2060
> pslist	33208
> pslist	33216
> pslist	33224
> pslist	33232
> pslist	33240
> ...
> pslist	33440
> pslist	33448
> pslist	2980
> pslist	33460
> pslist	33468
> pslist	33476
> ...
> pslist	36908
> pslist	36916
> pslist	36924
> process pslist was not found on AC431380
> process pslist was not found on AC431380
> process pslist was not found on AC431380
> process pslist was not found on AC431380
> process pslist was not found on AC431380
> process pslist was not found on AC431380
> The system cannot execute the specified program.
>
>
> It only went down 3 times, but we all know that 3 >>
> 0.
>
> Here is what my system info is:
>
> OS Name	Microsoft Windows 2000 Professional
> Version	5.0.2195 Service Pack 3 Build 2195
> OS Manufacturer	Microsoft Corporation
> System Name	AC431380
> System Manufacturer	Dell Computer Corporation
> System Model	Latitude C600
> System Type	X86-based PC
> Processor	x86 Family 6 Model 8 Stepping 10
> GenuineIntel ~1002 Mhz
> BIOS Version	Phoenix ROM BIOS PLUS Version 1.10 A16
> Windows Directory	C:\WINNT
> System Directory	C:\WINNT\System32
> Boot Device	\Device\Harddisk0\Partition1
> Locale	United States
> User Name	ADMIN-US-NE\WESTMWJ
> Time Zone	Eastern Standard Time
> Total Physical Memory	261,532 KB
> Available Physical Memory	38,436 KB
> Total Virtual Memory	892,780 KB
> Available Virtual Memory	466,012 KB
> Page File Space	631,248 KB
> Page File	C:\pagefile.sys
>
>
>
> Any suggestions?
>
>
>
> I am not the sort to mess with Windows on the machine
> my employer gave me, so I wonder why things are weird
> with it.  I can not remember even touching the
> registry until I tried debugging cygwin.
>
>
> Regards,
>
> Mike W.
>
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