Huihong,
thanks for your patches! I was able to reproduce these bugs and your
patches indeed fixed the problem. Your fixes should appear in SVN soon.
Cheers,
-Andreas.
Huihong Luo schrieb:
this crash seems to go away after I fixed
VbglR3GetAdditionsVersion(), pls refer to my other email for more info
VbglR3GetAdditionsVersion() allocates lots of memory, and randomly
corrupts certain area of memory when guest addition registry key is not
present, i.e., with OSE additions
--- On *Tue, 11/3/09, Huihong Luo /<[email protected]>/* wrote:
From: Huihong Luo <[email protected]>
Subject: Re: [vbox-dev] VBoxTray crash bug
To: [email protected], "Andreas - Sun Microsystems"
<[email protected]>
Date: Tuesday, November 3, 2009, 2:21 AM
this one keeps crashing on me
You can test it like this:
(1) xp vm
(2) toggle to seamless mode, open IE
(3) trying to install Firefox
(4) move windows around, and let the vm to run for a while
I pretty much got crashes from vboxtray after 10 mins, always the
case, and it crashed from exactly same place, that free() function.
Perhaps, somewhere overrun the buffer. I double checked the code,
seems to be quite perfectly ok. Could ExtEscape() overruns the buffer?
with debug build of vboxtray.exe, it seems to be better.
This bug makes seamless mode not usable at all.
--- On *Tue, 10/27/09, Huihong Luo /<[email protected]>/* wrote:
From: Huihong Luo <[email protected]>
Subject: Re: [vbox-dev] VBoxTray crash bug
To: [email protected], "Andreas - Sun Microsystems"
<[email protected]>
Date: Tuesday, October 27, 2009, 9:00 AM
very recent svn #23996
crash occured on seamless mode. I looked at the src code, seems
to be very safe, kind of weird about this crash
--- On *Tue, 10/27/09, Andreas - Sun Microsystems
/<[email protected]>/* wrote:
From: Andreas - Sun Microsystems <[email protected]>
Subject: Re: [vbox-dev] VBoxTray crash bug
To: [email protected]
Date: Tuesday, October 27, 2009, 6:39 AM
Huihong,
which exact VBox revision were you using? Please provide us
more information so that we can reproduce it. Thanks!
-Andreas
Huihong Luo schrieb:
> a memory corruption error
> ////////////////////////////////
> Microsoft (R) Windows Debugger Version 6.11.0001.404 X86
> Copyright (c) Microsoft Corporation. All rights reserved.
>
> 0:007> g
> (648.64c): Access violation - code c0000005 (!!! second
chance !!!)
> eax=000004c8 ebx=00990000 ecx=7ffdf000 edx=00990608
esi=0098fd30 edi=009901f8
> eip=7c910717 esp=0012fadc ebp=0012fae8 iopl=0 nv
up ei ng nz ac po cy
> cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000
efl=00000293
> ntdll!wcsncpy+0x198:
> 7c910717 f6460501 test byte ptr [esi+5],1
ds:0023:0098fd35=??
>
> WARNING: Stack unwind information not available.
Following frames may be wrong.
> ntdll!wcsncpy+0x198
> ntdll!wcsncpy+0x2cd
> VBoxTray!free+0x6e
[f:\dd\vctools\crt_bld\self_x86\crt\src\free.c @ 110]
> VBoxTray!VBoxSeamlessCheckWindows+0x170
[c:\virtualbox-dev\vbox\src\vbox\additions\winnt\vboxtray\vboxseamless.cpp
@ 271]
> VBoxTray!VBoxServiceStart+0x31a
[c:\virtualbox-dev\vbox\src\vbox\additions\winnt\vboxtray\vboxtray.cpp
@ 455]
> VBoxTray!WinMain+0x60
[c:\virtualbox-dev\vbox\src\vbox\additions\winnt\vboxtray\vboxtray.cpp
@ 549]
> VBoxTray!__tmainCRTStartup+0x177
[f:\dd\vctools\crt_bld\self_x86\crt\src\crt0.c @ 324]
> kernel32!RegisterWaitForInputIdle+0x49
>
>
>
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