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From: Wei Liu <wei.liu2@citrix.com>
To: "Ingo Jürgensmann" <ij@2013.bluespice.org>
Cc: Wei Liu <wei.liu2@citrix.com>,
	george.dunlap@citrix.com, xen-devel@lists.xen.org,
	804079@bugs.debian.org, janprunk@gmail.com,
	david.vrabel@citrix.com, Andreas Ziegler <ml@andreas-ziegler.de>
Subject: Re: Kernel panic on Xen virtualisation in Debian
Date: Mon, 25 Jul 2016 14:13:06 +0100	[thread overview]
Message-ID: <20160725131304.GL27082@citrix.com> (raw)
In-Reply-To: <e755a46304503ada84dc01c0adf2cb1e@localhost>

On Mon, Jul 25, 2016 at 01:41:41PM +0200, Ingo Jürgensmann wrote:
> On 25.07.2016 12:23, Wei Liu wrote:
> 
> First, thank you for replying! Very much appreciated! :)
> 
> >I did skim your emails. But the oops was happening in memcpy+0x6 which
> >indicated it came back to the origin question why would it got an
> >exception there.
> >
> >Just by staring at the code doesn't get me anywhere. Without a concrete
> >reproduction of the issue, I'm afraid I can't provide more input here.
> 
> Well, from my point of view, it happens quite often when accessing the
> server via SSH. For example today it crashed when I wanted to add something
> and after I clicked into putty and typed the first char. In another putty,
> where I have my netconsole log open, I instantly saw the oops.
> 
> But what exactly causing these kinds of reboots, I'm clueless as you too.
> Only that I do experience far more frequent crashes when accessing the
> server from workplace via putty on Windows than via SSH on OSX or Debian
> Linux.
> 
> >There are several moving parts:
> >0. Hardware
> >1. Xen hypervisor
> >2. Dom0 kernel
> >Your report and the debian report suggested that Dom0 kernel is less
> >likely to be the culprit because you've tried different Dom0 kernels.
> 
> As just written in the other mail, I already tried kernel 4.5 from
> backports. Still crashing.
> 
> >As for Xen, not sure if you would be up for trying a debug build from
> >source tree. That would help provide information on whether this is a
> >bug in Xen or not.
> 
> Will try to build from Debian source, but how to enable debug build?
> 

I was thinking about building directly from xen.git.

http://wiki.xenproject.org/wiki/Compiling_Xen_From_Source

Probably try the Xen 4.7 release.

Wei.

> -- 
> Ciao...          //        http://blog.windfluechter.net
>       Ingo     \X/     XMPP: ij@jabber.windfluechter.net
> 
> 
> gpg pubkey:  http://www.juergensmann.de/ij_public_key.asc

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  reply	other threads:[~2016-07-25 13:13 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-09 22:29 Kernel panic on Xen virtualisation in Debian Andreas Ziegler
2016-07-10 13:18 ` Ingo Jürgensmann
2016-07-18 16:44   ` Andreas Ziegler
2016-07-22  9:03     ` Ingo Jürgensmann
2016-07-22 10:21       ` Ingo Jürgensmann
2016-07-25  9:38         ` Ingo Jürgensmann
2016-07-25 10:23           ` Wei Liu
2016-07-25 10:42             ` Andreas Ziegler
2016-07-25 10:50               ` Andreas Ziegler
2016-07-25 10:51               ` Wei Liu
2016-07-25 11:27                 ` Ingo Jürgensmann
2016-07-25 12:35                   ` Sander Eikelenboom
2016-07-25 11:41             ` Ingo Jürgensmann
2016-07-25 13:13               ` Wei Liu [this message]
2016-07-29 11:45                 ` Andreas Ziegler
2016-07-29 13:01                   ` Wei Liu
2016-07-29 20:17                   ` Ingo Jürgensmann
2016-08-02  9:20                     ` Wei Liu
2016-08-02 10:30                       ` Ingo Jürgensmann
2016-08-02 12:37                         ` Wei Liu
2016-11-14 15:55                           ` Andreas Ziegler
2016-11-29  9:08                             ` Wei Liu
2016-11-29 20:20                               ` Ingo Jürgensmann
2016-12-01 13:26                                 ` Wei Liu
2016-12-01 13:59                                   ` Ingo Jürgensmann
2016-12-01 14:07                                     ` Wei Liu
2016-12-01 14:50                                     ` Sander Eikelenboom
2016-07-25 10:49           ` David Vrabel
  -- strict thread matches above, loose matches on Subject: below --
2016-07-04 18:06 Jan Prunk
2016-07-06 14:14 ` George Dunlap
2016-07-08 11:14   ` Wei Liu
2016-07-08 12:22     ` Jan Prunk

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