RE: cygwin reboots my PC randomly

[Dave Korn]

> -Original Message-
> From: cygwin-owner On Behalf Of Andrew DeFaria
> Sent: 29 December 2004 23:28

> Marc J wrote:
> 
> > I am not getting BSOD.
> >
> > Checked the event log:
> > dec 25 108am Source Save Dump, event 1001
> > The computer has rebooted from a bugcheck. The bugcheck 
> was: 0x00d4
> > (0xbad0b0e4, 0x0002, 0x0001,
> > 0x8006543a). Microsoft Windows 2000 [v15.2195]. A dump was saved in:
> > C:\WINNT\Minidump\Mini122504-01.dmp.
> 
> BTW, you might want to turn off that minidump thing. I can't recall a 
> single time that anyone has ever actually used one of them! 

  Nonsense!  All those bugcheck codes are excellent indicators of a faulty
kernel-mode driver and if he was to open one up in windbg it would tell him in
an instant which driver was at fault.  They are very useful postmortem
diagnostics!  Not as much as a full memory dump of course, but they'll let you
narrow it down; I've frequently diagnosed faulty drivers this way.


cheers, 
  DaveK
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Re: cygwin reboots my PC randomly

[Andrew DeFaria]

Marc J wrote:
I am not getting BSOD.
Checked the event log:
dec 25 108am Source Save Dump, event 1001
The computer has rebooted from a bugcheck. The bugcheck was: 0x00d4
(0xbad0b0e4, 0x0002, 0x0001,
0x8006543a). Microsoft Windows 2000 [v15.2195]. A dump was saved in:
C:\WINNT\Minidump\Mini122504-01.dmp.
BTW, you might want to turn off that minidump thing. I can't recall a 
single time that anyone has ever actually used one of them! Well perhaps 
some MS kernel engineer but how old do you think you'll be before you'll 
get one of your minidumps in front of one of those guys! ;-)
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Re: cygwin reboots my PC randomly

[Marc J]

I am not getting BSOD.

Checked the event log:
dec 25 108am Source Save Dump, event 1001
The computer has rebooted from a bugcheck.  The bugcheck was: 0x00d4
(0xbad0b0e4, 0x0002, 0x0001,
0x8006543a). Microsoft Windows 2000 [v15.2195]. A dump was saved in:
C:\WINNT\Minidump\Mini122504-01.dmp.

Error previous to it was 2 days prior

Was trying to access DVD drive via cygwin script, to build pic index:
twice DVD errors in event log may have caused the reboots.

Oct 4/04 241am Source Save Dump, event 1001
The computer has rebooted from a bugcheck.  The bugcheck was: 0x0050
(0xbad0b158, 0x, 0x8044ff5e,
0x). Microsoft Windows 2000 [v15.2195]. A dump was saved in:
C:\WINNT\Minidump\Mini100404-04.dmp.

235am - atapi - DVD drive
The device, \Device\Ide\IdePort1, did not respond within the timeout period.

Oct 4/04 151am Source Save Dump, event 1001
The computer has rebooted from a bugcheck.  The bugcheck was: 0x000a
(0xbad0b0e4, 0x0002, 0x0001,
0x8006543a). Microsoft Windows 2000 [v15.2195]. A dump was saved in:
C:\WINNT\Minidump\Mini100404-03.dmp.

Oct 4/04 142am Source Save Dump, event 1001
The computer has rebooted from a bugcheck.  The bugcheck was: 0x000a
(0xbad0b0e4, 0x0002, 0x0001,
0x8006543a). Microsoft Windows 2000 [v15.2195]. A dump was saved in:
C:\WINNT\Minidump\Mini100404-02.dmp.

Oct 4/04 1214am Source Save Dump, event 1001
The computer has rebooted from a bugcheck.  The bugcheck was: 0x000a
(0xbad0b0e4, 0x0002, 0x0001,
0x8006543a). Microsoft Windows 2000 [v15.2195]. A dump was saved in:
C:\WINNT\Minidump\Mini100404-01.dmp.

Oct 3/04 715am - atapi - DVD drive
The device, \Device\Ide\IdePort1, did not respond within the timeout period.

sept 28/04 456pm Source Save Dump, event 1001
The computer has rebooted from a bugcheck.  The bugcheck was: 0x0050
(0xbad0b158, 0x, 0x8044ff5e,
0x0003). Microsoft Windows 2000 [v15.2195]. A dump was saved in:
C:\WINNT\Minidump\Mini092804-02.dmp.

sept 28/04 429pm Source Save Dump, event 1001
The computer has rebooted from a bugcheck.  The bugcheck was: 0x000a
(0xbad0b0e4, 0x0002, 0x0001,
0x8006543a). Microsoft Windows 2000 [v15.2195]. A dump was saved in:
C:\WINNT\Minidump\Mini092804-01.dmp.

I installed the latest video card driver today.

Ran some hw diags:
The most serious error it reports is critical.

ran hw tests.
5 serious video memory corruption errors. skipped dvd test

ran it again:
1 serious video memory corruption errors, 1 serious DVD error.

dec 29/04
install the updated video driver, reboot

ran it again,
2 serious video memory corruption errors

ran it again,
1 serious video memory corruption errors

I don't have any really good hw diags to confirm my video card may have some
serious hw problems.
I am running cygwin to see it the prob will re-occur after updating the
video drivers. Hasn't yet.

M


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Re: cygwin reboots my PC randomly

[Brian Dessent]

Brian Bruns wrote:

> > Unless you have a cron job that runs "shutdown -r" or "reboot" :-),
> > Brian's reply pretty much explains it...
> > Igor
> 
> A suggestion too - if you have mysterious reboots, turn off
> "Automatically reboot" in the System control panel, under the Advanced
> tab, and click the Startup and Recovery button.  That way, you
> actually see the blue screen with the information that caused the
> BSOD.
> 
> Otherwise, check the Event Logs, but I've seen times where crashes
> were not properly recorded in the event logs.  So, turn off auto
> reboot may be the best option.

And, if he is actually getting a BSOD and not just a spontaneous reboot,
then he should look up the STOP error code displayed on this page to
start to narrow down the cause: 

Brian

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RE: cygwin reboots my PC randomly

[Dave Korn]

> -Original Message-
> From: cygwin-owner On Behalf Of Marc J
> Sent: 29 December 2004 04:46

> After I have the cygwin environment up with windowing started via
> startxwin.sh, and a couple of xterm windows up,
> after a random amount of time (several hours, 2 days...), my 
> PC suddenly reboots.

  That could mean anything.  In particular, do you mean it

1) ... spontaneously goes through the regular logging off and shutting down
windows procedure followed by a normal restart ...
2) ... crashes with a BSoD and reboots itself ...
3) ... suddenly and completely just stops what it was doing and immediately
restarts from the BIOS/power-on self-test screen, without any warning or error
whatsoever 

... because these would all be caused by entirely different reasons.

  Have you tried changing all the font settings in all your X programs to
different fonts that you don't normally use?  That might _just_ get it..


cheers, 
  DaveK
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Re: cygwin reboots my PC randomly

[Shankar Unni]

Brian Dessent wrote:
First of all: Your question belongs on the Cywin X11 mailing list
definitely.
The problem here is that Cygwin is just a DLL and some applications. 
That is, it runs as a normal user process and does not involve any
device drivers.  
Of course, from a naive user's point of view, *everything* obtained via 
"Cygwin's setup.exe" would seem to be part of "Cygwin"..

Anyway, another stab in the dark is that the X server is stressing 
something in your graphics adapter's drivers that is causing it to BSOD. 
(This sort of stuff happens regularly when Java tries too hard to 
accelerate graphics and tickles graphics bugs).

Get the latest version of your display driver adapters from the 
manufacturer's web site and see if that improves things.

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Re: cygwin reboots my PC randomly

[Brian Bruns]

On Wednesday, December 29, 2004 11:31 AM [EST], Igor Pechtchanski
wrote:

>
> Unless you have a cron job that runs "shutdown -r" or "reboot" :-),
> Brian's reply pretty much explains it...
> Igor


A suggestion too - if you have mysterious reboots, turn off
"Automatically reboot" in the System control panel, under the Advanced
tab, and click the Startup and Recovery button.  That way, you
actually see the blue screen with the information that caused the
BSOD.

Otherwise, check the Event Logs, but I've seen times where crashes
were not properly recorded in the event logs.  So, turn off auto
reboot may be the best option.


-- 
Brian Bruns
The Summit Open Source Development Group
http://www.sosdg.org  /  http://www.ahbl.org


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Re: cygwin reboots my PC randomly

[Igor Pechtchanski]

On Tue, 28 Dec 2004, Marc J wrote:

> I'm running DLL release version is 1.5.10-3 on Windows 2000 Pro and a 1 yr
> old 3.0 GHz PC.
> Windowing env - /usr/X11R6/bin/wmaker.exe
>
> After I have the cygwin environment up with windowing started via
> startxwin.sh, and a couple of xterm windows up,
> after a random amount of time (several hours, 2 days...), my PC suddenly
> reboots.
> This only happens when I run cygwin. I run an older version on my laptop
> w/o any problems, I love it.
>
> I have checked FAQs, mailing list archives, etc.
>
> I know this may be difficult to resolve.
> I would like to use it more, so if anyone can provide a clue to what might
> be the cause, it would be appreciated.

Unless you have a cron job that runs "shutdown -r" or "reboot" :-),
Brian's reply pretty much explains it...
Igor
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Re: cygwin reboots my PC randomly

[Brian Dessent]

Marc J wrote:

> I'm running DLL release version is 1.5.10-3 on Windows 2000 Pro and a 1 yr

You should at least use the latest version.

> After I have the cygwin environment up with windowing started via
> startxwin.sh, and a couple of xterm windows up,
> after a random amount of time (several hours, 2 days...), my PC suddenly
> reboots.

First of all: Your question belongs on the Cywin X11 mailing list
(cygwin-xfree AT cygwin DOT com) which is where I've set the Reply-To. 
Please read the instructions on the cygwin.com website before posting.

The problem here is that Cygwin is just a DLL and some applications. 
That is, it runs as a normal user process and does not involve any
device drivers.  Under the NT line of operating systems, a regular user
mode app cannot do anything that would cause the machine to BSOD or
reboot.  I'm not saying that normal apps can't cause BSODs and reboots,
but they are either interfacing with buggy kernel mode (ring 0) drivers
or they are stimulating those drivers in some way so as to cause the
reboot.  Or... you have faulty hardware.  Bad RAM tends to distinguish
itself by causing inexplicable reboots and lockups.

What I'm trying to get at is there really can't be anything in user-mode
code that would directly cause a reboot.  It would have to either
trigger a bug in a kernel mode driver (*cough* video drivers *cough*) or
some other hardware anomaly is at fault.

I realize that it may only happen with Cygwin, but that doesn't mean
it's Cygwin's fault per se... Cygwin may just be tickling some driver or
HW bug.

So the first thing I would recommend is to make sure you have the latest
version of all important kernel mode drivers (video,
motherboard/chipset, sound, etc.)  Then run a comprehensive memory test
such as memtest86 (google it.)

Brian

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