[ 1044.070800] [drm:radeon_cp_start] *ERROR* radeon_cp_start called without lock held, held -2147483648 owner e3d01240 e3d01b40
[ 1044.070834] [drm:radeon_cp_idle] *ERROR* radeon_cp_idle called without lock held, held -2147483648 owner e3d01240 e3d01b40
...
[ 1047.360532] [drm:radeon_cp_idle] *ERROR* radeon_cp_idle called without lock held, held -2147483648 owner e3d01240 e3d01b40
[ 1047.371003] [drm:radeon_cp_reset] *ERROR* radeon_cp_reset called without lock held, held -2147483648 owner e3d01240 e3d01b40
[ 1047.371062] [drm:radeon_cp_start] *ERROR* radeon_cp_start called without lock held, held -2147483648 owner e3d01240 e3d01b40
[ 1047.371097] [drm:radeon_cp_idle] *ERROR* radeon_cp_idle called without lock held, held -2147483648 owner e3d01240 e3d01b40
Also attaching a ps from alpha-5 live CD showing the 'dd' command associated with the hang. Alt+SysRq+K didn't work, nor gdm restart, but Alt+SysRq+B did reboot.
On Live CD alpha-5 dmesg is full of
[ 1044.070800] [drm:radeon_ cp_start] *ERROR* radeon_cp_start called without lock held, held -2147483648 owner e3d01240 e3d01b40 cp_idle] *ERROR* radeon_cp_idle called without lock held, held -2147483648 owner e3d01240 e3d01b40 cp_idle] *ERROR* radeon_cp_idle called without lock held, held -2147483648 owner e3d01240 e3d01b40 cp_reset] *ERROR* radeon_cp_reset called without lock held, held -2147483648 owner e3d01240 e3d01b40 cp_start] *ERROR* radeon_cp_start called without lock held, held -2147483648 owner e3d01240 e3d01b40 cp_idle] *ERROR* radeon_cp_idle called without lock held, held -2147483648 owner e3d01240 e3d01b40
[ 1044.070834] [drm:radeon_
...
[ 1047.360532] [drm:radeon_
[ 1047.371003] [drm:radeon_
[ 1047.371062] [drm:radeon_
[ 1047.371097] [drm:radeon_
Also attaching a ps from alpha-5 live CD showing the 'dd' command associated with the hang. Alt+SysRq+K didn't work, nor gdm restart, but Alt+SysRq+B did reboot.