xen dies on Linux agpgart interace

xen dies on Linux agpgart interace

[Nathaniel Haggard]

Xen appears to kernel panic.  Boot up terminates and hangs with the
message "agpgart: Maximum main memory to use for agp memory: 152 M. "

This is a compiled Xen-2.0 latest snapshot with agp support in the kernel.

Has anyone else had similar problems with agp?

Nate


-------------------------------------------------------
This SF.Net email is sponsored by:
Sybase ASE Linux Express Edition - download now for FREE
LinuxWorld Reader's Choice Award Winner for best database on Linux.
http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click

Re: xen dies on Linux agpgart interace

[Mark A. Williamson]

Agpgart isn't (yet) supported, so it's best to avoid it for now.  This will 
probably be fixed in a later release.  You should be able to get X to work 
with a non-agpgart-specific (albeit slower) configuration.

For reference, there's the beginnings of a fix in the patches directory but 
it's not finished yet (it'll get you further into a boot but it'll still 
crash ;-) ).

HTH,
Mark

> Xen appears to kernel panic.  Boot up terminates and hangs with the
> message "agpgart: Maximum main memory to use for agp memory: 152 M. "
>
> This is a compiled Xen-2.0 latest snapshot with agp support in the kernel.
>
> Has anyone else had similar problems with agp?
>
> Nate
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by:
> Sybase ASE Linux Express Edition - download now for FREE
> LinuxWorld Reader's Choice Award Winner for best database on Linux.
> http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/xen-devel


-------------------------------------------------------
This SF.Net email is sponsored by:
Sybase ASE Linux Express Edition - download now for FREE
LinuxWorld Reader's Choice Award Winner for best database on Linux.
http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click

Re: xen dies on Linux agpgart interace

[Jerome Brown]

Is this AGPGART problem only in unprivileged domains, or in both
privileged and unprivileged?

Cheers

Jerome

Mark A. Williamson wrote:
> Agpgart isn't (yet) supported, so it's best to avoid it for now.  This will 
> probably be fixed in a later release.  You should be able to get X to work 
> with a non-agpgart-specific (albeit slower) configuration.
> 
> For reference, there's the beginnings of a fix in the patches directory but 
> it's not finished yet (it'll get you further into a boot but it'll still 
> crash ;-) ).
> 
> HTH,
> Mark
> 
> 
>>Xen appears to kernel panic.  Boot up terminates and hangs with the
>>message "agpgart: Maximum main memory to use for agp memory: 152 M. "
>>
>>This is a compiled Xen-2.0 latest snapshot with agp support in the kernel.
>>
>>Has anyone else had similar problems with agp?
>>
>>Nate
>>
>>
>>-------------------------------------------------------
>>This SF.Net email is sponsored by:
>>Sybase ASE Linux Express Edition - download now for FREE
>>LinuxWorld Reader's Choice Award Winner for best database on Linux.
>>http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click
>>_______________________________________________
>>Xen-devel mailing list
>>Xen-devel@lists.sourceforge.net
>>https://lists.sourceforge.net/lists/listinfo/xen-devel
> 
> 
> 
> -------------------------------------------------------
> This SF.Net email is sponsored by:
> Sybase ASE Linux Express Edition - download now for FREE
> LinuxWorld Reader's Choice Award Winner for best database on Linux.
> http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/xen-devel
> 
> 



-------------------------------------------------------
This SF.Net email is sponsored by: InterSystems CACHE
FREE OODBMS DOWNLOAD - A multidimensional database that combines
robust object and relational technologies, making it a perfect match
for Java, C++,COM, XML, ODBC and JDBC. www.intersystems.com/match8

Re: xen dies on Linux agpgart interace

[Keir Fraser]

> Is this AGPGART problem only in unprivileged domains, or in both
> privileged and unprivileged?
> 
> Cheers
> 
> Jerome

Unprivileged guests get no access to the AGPGART hardware, so they
will never be able to run a native X server (you need to use VNC or
some other means to forward screen data to real X in domain 0).

Privileged guests *ought* to be able to run X with AGPGART but
currently there are bugs which cause it to fail. That's what we are
looking into.

 -- Keir


-------------------------------------------------------
This SF.Net email is sponsored by: InterSystems CACHE
FREE OODBMS DOWNLOAD - A multidimensional database that combines
robust object and relational technologies, making it a perfect match
for Java, C++,COM, XML, ODBC and JDBC. www.intersystems.com/match8