Messages in this thread | | | Date | Tue, 5 Apr 2005 19:44:38 +1000 | From | Paul Mackerras <> | Subject | Re: 2.6.12-rc2-mm1 |
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Christoph Hellwig writes:
> - the magic CONFIG_COMPAT changes for SHM handles should only be done when > a module is set. CONFIG_COMPAT is set for mostly 64bit systems that can > run 32bit code and drm shouldn't behave differently just because we can > run 32bit code.
Yes it should - we can have a 64-bit X server and a 32-bit DRI client. In this case the server will allocate a _DRM_SHM area and pass the handle to the client, which will then try to mmap the area. If we give a 64-bit handle to the server the client won't be able to access the area.
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