summary refs log tree commit diff stats
path: root/results/classifier/zero-shot/118/kernel/1585
blob: 385b0d0d41d1f6900fb6a1d15f469f2f3b6dfe27 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
kernel: 0.950
graphic: 0.813
device: 0.699
architecture: 0.683
files: 0.618
ppc: 0.520
vnc: 0.501
boot: 0.445
risc-v: 0.437
semantic: 0.430
hypervisor: 0.380
socket: 0.349
permissions: 0.299
arm: 0.283
network: 0.278
performance: 0.275
x86: 0.273
VMM: 0.266
peripherals: 0.261
TCG: 0.248
PID: 0.234
register: 0.225
KVM: 0.181
i386: 0.155
debug: 0.119
user-level: 0.108
mistranslation: 0.054
assembly: 0.024
virtual: 0.010

Incorrect VGA text mode rendering
Description of problem:
All of my physical machines use black as `DarkGray` and have the text starting from `White+DarkGray` blink (watch the video below). The ISO I'm using is a minimal kernel I've written to check VGA text mode (provided by the BIOS at `0xb8000` with a 80x25 resolution) handling on multiple emulators and machines.
Changing the emulated CPU and display driver doesn't change this behaviour.

Hyper-V: color test shows correct colors, all text starting from `White+DarkGray` is blinking

![Hyper-V](/uploads/0d6e9a2398d0f5aeca94e6fbbc31e055/image.png)

AMD Athlon 64 X2 6000+ + NVIDIA Quadro 400 on actual hardware: same as Hyper-V
I've tested this with multiple physical GPUs and they all have the same behaviour and color palette.

![AMD Athlon 64 X2 6000+ + NVIDIA Quadro 400](/uploads/883484cea78f8d598634ebab3645341c/image.png)

QEMU: dark gray is the wrong color and the text doesn't blink
Changing the emulated device doesn't change this behaviour.

![QEMU](/uploads/cf1e6a1e7e8bcfc48b60bd92d9024de5/image.png)

I think QEMU should emulate the hardware as close as possible and therefore atleast have the blinking text.
Consider this a low priority issue.
Steps to reproduce:
1. Download ISO from the link above
2. Run the QEMU command above
3. See the text not blink
Additional information:
![Demo of various machines](/uploads/9de70ecd2185bdb57b3ee324fe18dcd9/2023-04-08_04-56-05.mp4)