[vbox-dev] crash when restoring a snapshot

Huihong Luo huisinro at yahoo.com
Fri Jul 30 08:31:42 PDT 2010

if the debugger says it's NULL, it must be so, perhaps some overlooks? This is the first time I ever got this crash.
What I did is very simple, create a new vm (XP Mode vm this case, shouldn't matter), boot it, take a snapshot, boot vm again, then immediately power if off, now try to restore the snapshot, and got that error.
I am trying to recompile the latest svn code right now to double check this

--- On Fri, 7/30/10, Klaus Espenlaub <klaus.espenlaub at oracle.com> wrote:

From: Klaus Espenlaub <klaus.espenlaub at oracle.com>
Subject: Re: [vbox-dev] crash when restoring a snapshot
To: vbox-dev at virtualbox.org
Date: Friday, July 30, 2010, 7:16 AM

On 30.07.2010 05:18, Huihong Luo wrote:
> seems that in this function: mMediaData.backedUpData() might be NULL

Do you have a reproduction scenario? Without one it's nearly impossible to find this bug. The call trace below provides no information which would give hints what could lead to this. We don't fix bugs by inserting a check based on the fact that the pointer was NULL. The cause needs to be investigated, as the pointer must not be NULL by design in this place.


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