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* [uml-devel] /dev/anon without /dev/anon ?
@ 2004-02-12 15:02 Matt Ayres
  2004-02-12 20:43 ` Peter
  0 siblings, 1 reply; 6+ messages in thread
From: Matt Ayres @ 2004-02-12 15:02 UTC (permalink / raw)
  To: user-mode-linux-devel

Hi,

I had tried out the /dev/anon patch on a host server, success wasn't too
good.  It crashed after a few hours of running.  This was without
ubd=mmap passed to the UML's. Unfortunately I do not have any sort of
OOPs.

Now the interesting part, I rebooted with the previous kernel so it does
not have the /dev/anon kernel patch.  The /dev/anon device still exists
and the UML's are using it!  

My primary question now is, is this a "bad thing" to do?  Would there be
any significant performance problems to just let it run this way? 
Shouldn't the UML kernel check to make sure that /dev/anon kernel
support is indeed there?

Thanks,
Matt



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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [uml-devel] /dev/anon without /dev/anon ?
  2004-02-12 15:02 [uml-devel] /dev/anon without /dev/anon ? Matt Ayres
@ 2004-02-12 20:43 ` Peter
  2004-02-12 21:51   ` Jeff Dike
  0 siblings, 1 reply; 6+ messages in thread
From: Peter @ 2004-02-12 20:43 UTC (permalink / raw)
  To: user-mode-linux-devel

This may just be noise, but I also had a host server with 2.4.24 + skas3 + /dev/anon that crashed yesterday after a day or so of running.  Not using ubd=mmap.

Regards, Peter
----- Original Message ----- 
From: "Matt Ayres" <matta@tektonic.net>
To: <user-mode-linux-devel@lists.sourceforge.net>
Sent: Friday, February 13, 2004 4:02 AM
Subject: [uml-devel] /dev/anon without /dev/anon ?


> Hi,
> 
> I had tried out the /dev/anon patch on a host server, success wasn't too
> good.  It crashed after a few hours of running.  This was without
> ubd=mmap passed to the UML's. Unfortunately I do not have any sort of
> OOPs.



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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [uml-devel] /dev/anon without /dev/anon ?
  2004-02-12 21:51   ` Jeff Dike
@ 2004-02-12 21:28     ` Peter
  2004-02-12 21:49       ` Matt Ayres
  2004-02-12 23:40       ` Jeff Dike
  0 siblings, 2 replies; 6+ messages in thread
From: Peter @ 2004-02-12 21:28 UTC (permalink / raw)
  To: Jeff Dike; +Cc: user-mode-linux-devel

I don't go near tt UMLs.  This these are all using skas UMLs.  Is there anyway I can disable /dev/anon without rebuilding the kernel. rm /dev/anon?

Regards, Peter
----- Original Message ----- 
From: "Jeff Dike" <jdike@addtoit.com>
To: "Peter" <support@rimuhosting.com>
Cc: <user-mode-linux-devel@lists.sourceforge.net>
Sent: Friday, February 13, 2004 10:51 AM
Subject: Re: [uml-devel] /dev/anon without /dev/anon ?


> On Fri, Feb 13, 2004 at 09:43:09AM +1300, Peter wrote:
> > This may just be noise, but I also had a host server with 2.4.24 + skas3 + /dev/anon that crashed yesterday after a day or so of running.  Not using ubd=mmap.
> 
> Yeah, the patch is not quite kosher.  I've had no problems whatsoever running
> skas UMLs, but tt UMLs won't boot with devanon.
> 
> Jeff
> 


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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [uml-devel] /dev/anon without /dev/anon ?
  2004-02-12 21:28     ` Peter
@ 2004-02-12 21:49       ` Matt Ayres
  2004-02-12 23:40       ` Jeff Dike
  1 sibling, 0 replies; 6+ messages in thread
From: Matt Ayres @ 2004-02-12 21:49 UTC (permalink / raw)
  To: Peter; +Cc: Jeff Dike, user-mode-linux-devel

Yes, that will work.  I forgot to mknod /dev/anon the first time I
tested it and the UML's did not use it.

I'm still perplexed as to my situation though :)

On Thu, 2004-02-12 at 16:28, Peter wrote:
> I don't go near tt UMLs.  This these are all using skas UMLs.  Is there anyway I can disable /dev/anon without rebuilding the kernel. rm /dev/anon?
> 
> Regards, Peter
> ----- Original Message ----- 
> From: "Jeff Dike" <jdike@addtoit.com>
> To: "Peter" <support@rimuhosting.com>
> Cc: <user-mode-linux-devel@lists.sourceforge.net>
> Sent: Friday, February 13, 2004 10:51 AM
> Subject: Re: [uml-devel] /dev/anon without /dev/anon ?
> 
> 
> > On Fri, Feb 13, 2004 at 09:43:09AM +1300, Peter wrote:
> > > This may just be noise, but I also had a host server with 2.4.24 + skas3 + /dev/anon that crashed yesterday after a day or so of running.  Not using ubd=mmap.
> > 
> > Yeah, the patch is not quite kosher.  I've had no problems whatsoever running
> > skas UMLs, but tt UMLs won't boot with devanon.
> > 
> > Jeff
> > 
> 
> 
> -------------------------------------------------------
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> Build and deploy apps & Web services for Linux with
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> _______________________________________________
> User-mode-linux-devel mailing list
> User-mode-linux-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel
-- 
Matt Ayres <matta@tektonic.net>
TekTonic



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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [uml-devel] /dev/anon without /dev/anon ?
  2004-02-12 20:43 ` Peter
@ 2004-02-12 21:51   ` Jeff Dike
  2004-02-12 21:28     ` Peter
  0 siblings, 1 reply; 6+ messages in thread
From: Jeff Dike @ 2004-02-12 21:51 UTC (permalink / raw)
  To: Peter; +Cc: user-mode-linux-devel

On Fri, Feb 13, 2004 at 09:43:09AM +1300, Peter wrote:
> This may just be noise, but I also had a host server with 2.4.24 + skas3 + /dev/anon that crashed yesterday after a day or so of running.  Not using ubd=mmap.

Yeah, the patch is not quite kosher.  I've had no problems whatsoever running
skas UMLs, but tt UMLs won't boot with devanon.

				Jeff


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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [uml-devel] /dev/anon without /dev/anon ?
  2004-02-12 21:28     ` Peter
  2004-02-12 21:49       ` Matt Ayres
@ 2004-02-12 23:40       ` Jeff Dike
  1 sibling, 0 replies; 6+ messages in thread
From: Jeff Dike @ 2004-02-12 23:40 UTC (permalink / raw)
  To: Peter; +Cc: user-mode-linux-devel

On Fri, Feb 13, 2004 at 10:28:14AM +1300, Peter wrote:
> Is there anyway I can disable /dev/anon without rebuilding the kernel. rm /dev/anon?

That'll work.  I chmod 600 /dev/anon, but it works out the same.

				Jeff



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^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2004-02-12 23:15 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2004-02-12 15:02 [uml-devel] /dev/anon without /dev/anon ? Matt Ayres
2004-02-12 20:43 ` Peter
2004-02-12 21:51   ` Jeff Dike
2004-02-12 21:28     ` Peter
2004-02-12 21:49       ` Matt Ayres
2004-02-12 23:40       ` Jeff Dike

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