Re: [zones-discuss] Do zones add to system stability?

2010-04-12 Thread Volker A. Brandt
I'm looking to prove that by using a zone I can increase the overall stability of a server (if the app falls over it can't the the machine with it). A kernel panic is a kernel panic is a kernel panic. :-) So if an app crashes the complete zone, chances are it will crash the entire box. After

Re: [zones-discuss] Do zones add to system stability?

2010-04-12 Thread Ben
I'm looking to prove that by using a zone I can increase the overall stability of a server (if the app falls over it can't the the machine with it). A kernel panic is a kernel panic is a kernel panic. :-) So if an app crashes the complete zone, chances are it will crash the entire box.

Re: [zones-discuss] Do zones add to system stability?

2010-04-12 Thread Volker A. Brandt
I'm looking to prove that by using a zone I can increase the overall stability of a server (if the app falls over it can't the the machine with it). A kernel panic is a kernel panic is a kernel panic. :-) So if an app crashes the complete zone, chances are it will crash the entire

Re: [zones-discuss] Do zones add to system stability?

2010-04-12 Thread Gregory Hicks
From: Volker A. Brandt v...@bb-c.de Date: Mon, 12 Apr 2010 17:03:03 +0200 To: Ben ben.lav...@gmail.com Cc: zones-discuss@opensolaris.org Subject: Re: [zones-discuss] Do zones add to system stability? I'm looking to prove that by using a zone I can increase the overall stability

Re: [zones-discuss] Do zones add to system stability?

2010-04-12 Thread Nicolas Williams
On Mon, Apr 12, 2010 at 10:37:55AM -0700, Gregory Hicks wrote: Used my google foo on induce solaris kernel panic and right near the top was a pointer to docs.sun.com discussing Kernel Destructive Action that contained this tidbit at this URL:

Re: [zones-discuss] Do zones add to system stability?

2010-04-12 Thread Nicolas Williams
On Mon, Apr 12, 2010 at 06:49:02PM +0100, Ben Lavery wrote: If an application was poorly written and caused the kernel to panic in the g-zone, are you saying that the same application shouldn't be able to cause a kernel panic in the ng-zone as it wouldn't be able to load kernel modules, etc in

Re: [zones-discuss] Do zones add to system stability?

2010-04-12 Thread Volker A. Brandt
Many thanks Gregory, I think that might do just the job! Ben [...] So using dtrace and panic() might do the trick... H... I don't think so. Your original question was to find a sufficiently broken app to induce a kernel panic. Gregs answer describes how to call the panic handler, in