Forcing GPU accelration on r600g w/ (now using LLVM R600_LLVM=1 default it seems) causes an assert to be thrown.

Components:

kernel-3.14.0-0.rc5.git2.2.fc21.x86_64
mesa-dri-drivers-10.1-1.20140305.fc21.x86_64
llvm-libs-3.4-4.fc21.x86_64
libdrm-2.4.52-1.fc21.x86_64

$ google-chrome --ignore-gpu-blacklist &
[1] 6174
ATTENTION: default value of option force_s3tc_enable overridden by environment.
[6206:6206:0311/190002:ERROR:sandbox_linux.cc(268)] InitializeSandbox() called with multiple threads in process gpu-process
/chrome/chrome --type=gpu-process --channel=6174.0.484233088 --user-data-dir=/home/spstarr/.config/google-chrome-beta --disable-breakpad --supports-dual-gpus=false --gpu-driver-bug-workarounds=0,1,28 --gpu-vendor-id=0x1002 --gpu-device-id=0x9591 --gpu-driver-vendor --gpu-driver-version --user-data-dir=/h: sb/sb_bc_parser.cpp:265: int r600_sb::bc_parser::decode_alu_group(r600_sb::cf_node*, unsigned int&, unsigned int&): Assertion `!"alu slot assignment failed"' failed.
ATTENTION: default value of option force_s3tc_enable overridden by environment.
[6348:6348:0311/190007:ERROR:sandbox_linux.cc(268)] InitializeSandbox() called with multiple threads in process gpu-process
/chrome/chrome --type=gpu-process --channel=6174.7.1540935881 --user-data-dir=/home/spstarr/.config/google-chrome-beta --disable-breakpad --supports-dual-gpus=false --gpu-driver-bug-workarounds=0,1,2,28 --gpu-vendor-id=0x1002 --gpu-device-id=0x9591 --gpu-driver-vendor=Mesa --gpu-driver-version=10.1.0 --user-data-dir=/h: sb/sb_bc_parser.cpp:265: int r600_sb::bc_parser::decode_alu_group(r600_sb::cf_node*, unsigned int&, unsigned int&): Assertion `!"alu slot assignment failed"' failed.
ATTENTION: default value of option force_s3tc_enable overridden by environment.
[6354:6354:0311/190008:ERROR:sandbox_linux.cc(268)] InitializeSandbox() called with multiple threads in process gpu-process
/chrome/chrome --type=gpu-process --channel=6174.8.352379127 --user-data-dir=/home/spstarr/.config/google-chrome-beta --disable-breakpad --supports-dual-gpus=false --gpu-driver-bug-workarounds=0,1,2,28 --gpu-vendor-id=0x1002 --gpu-device-id=0x9591 --gpu-driver-vendor=Mesa --gpu-driver-version=10.1.0 --user-data-dir=/h: sb/sb_bc_parser.cpp:265: int r600_sb::bc_parser::decode_alu_group(r600_sb::cf_node*, unsigned int&, unsigned int&): Assertion `!"alu slot assignment failed"' failed.
[WARNING:flash/platform/pepper/pep_module.cpp(63)] SANDBOXED