[B2-devel] Problems with Speedometer 4.x & depth switching

[Gwenole B. <gb...@di...>]

Hi,

While performing a few tests with Speedometer 4.x, in "all tests"
(cmd-'A') mode, the first graphics test will switch the depth and then
restores it back for the disk and fpu performance test.

Then, "Benchmark mix" and "FPU benchmark" tests are run. Finally, in
"QuickDraw tests" the depth is switched again, test is carried out, but
when it's time to switch depth back to its original value, B2 crashes with
the following.

do_handle_screen_fault: unhandled address 0x8
D0: 00000000 D1: 0000003a D2: 00000004 D3: 00000001
D4: 00000084 D5: 00000004 D6: 00000001 D7: 0000000c
A0: 01d2d1f6 A1: 000092a0 A2: 00009350 A3: 000092a0
A4: 00002128 A5: 01d348d8 A6: 01d2d11a A7: 01d2d0ae
USP=3D00000000 ISP=3D01d2d0ae MSP=3D00000000 VBR=3D00000000
T=3D00 S=3D1 M=3D0 X=3D0 N=3D0 Z=3D0 V=3D0 C=3D0 IMASK=3D0
FP0: 0 FP1: 0 FP2: 0 FP3: 0
FP4: 0 FP5: 0 FP6: 0 FP7: 0
N=3D0 Z=3D0 I=3D0 NAN=3D0
0000938a: 7119 0c68 0001 001a 6604 ILLEGAL.L
next PC: 0000938c

That's in EmulOp VIDEO_CONTROL and I suspect a null pointer offset by 8.

Bye,
Gwenol=E9 [investigating if time permits it]