Date: Sun, 15 Jul 2007 02:31:02 -0700 From: vehemens <vehemens@verizon.net> To: freebsd-x11@freebsd.org Subject: RADEON/AIGLX/DRM Problem Message-ID: <200707150231.03162.vehemens@verizon.net> In-Reply-To: <200707092112.06905.vehemens@verizon.net> References: <200707030247.52207.vehemens@verizon.net> <1183974697.15243.58.camel@thor.sulgenrain.local> <200707092112.06905.vehemens@verizon.net>
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The problem with the RADEON driver failing when run with the AIGLX extension appears to be a problem with the DRM piece (library and/or driver). What is happening is that the RADEON driver initializes DRM and sets a lock using one file descriptor. When the AIGLX extension loads, it probes via DRM using open/close calls on another file descriptor. As both the RADEON driver and the AIGLX extension are part of the same process, the AIGLX probe close calls drm_close which removes the DRI lock causing the RADEON driver to fail during xserver initialization (i.e. system hang). Just to complicate the issue, I've been told that this doesn't occur with linux with the suggestion that the BSD driver is broken or that the close semantics are different between the two operating systems. I'm looking for ideas here as I don't know what direction to go in a this point.
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