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Diffstat (limited to 'gitlab/issues/target_missing/host_missing/accel_missing/1159.toml')
| -rw-r--r-- | gitlab/issues/target_missing/host_missing/accel_missing/1159.toml | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/gitlab/issues/target_missing/host_missing/accel_missing/1159.toml b/gitlab/issues/target_missing/host_missing/accel_missing/1159.toml deleted file mode 100644 index e0885f853..000000000 --- a/gitlab/issues/target_missing/host_missing/accel_missing/1159.toml +++ /dev/null @@ -1,42 +0,0 @@ -id = 1159 -title = "Strange invalid access errors for very basic OS" -state = "closed" -created_at = "2022-08-15T15:10:57.699Z" -closed_at = "2022-08-18T09:07:37.564Z" -labels = ["workflow::Needs Info"] -url = "https://gitlab.com/qemu-project/qemu/-/issues/1159" -host-os = "Kubuntu 20.04" -host-arch = "x86_64" -qemu-version = "4.2.1" -guest-os = "Custom" -guest-arch = "x86_64" -description = """Currently I'm studying OS development. I found numerous guides on that topic, however [this one](https://github.com/cfenollosa/os-tutorial/tree/master/01-bootsector-barebones) is most close to what I have been doing. -When `.bin` file is launched with `-d guest_errors` flag, before any OS output exactly 512 error messages appear in logs, that look like that: -``` -Invalid access at addr 0xFEBB0000, size 1, region '(null)', reason: rejected -Invalid access at addr 0x0, size 1, region '(null)', reason: rejected -Invalid access at addr 0xFEBB0001, size 1, region '(null)', reason: rejected -Invalid access at addr 0x1, size 1, region '(null)', reason: rejected -Invalid access at addr 0xFEBB0002, size 1, region '(null)', reason: rejected -... -and it goes up to -... -Invalid access at addr 0xFEBB00FE, size 1, region '(null)', reason: rejected -Invalid access at addr 0xFE, size 1, region '(null)', reason: rejected -Invalid access at addr 0xFEBB00FF, size 1, region '(null)', reason: rejected -Invalid access at addr 0xFF, size 1, region '(null)', reason: rejected -``` -Apparently, the OS boots normally after that. Should I be concerned about these messages or Should I just ignore them? -That looks strange and confusing, not a piece of my code calls these addresses. Maybe I'm doing something wrong?""" -reproduce = """1. Install `nasm` compiler (nasm package for apt) -2. Create a file named `os.asm` with exactly four lines: -```asm -loop: - jmp loop -times 510-($-$$) db 0 -dw 0xaa55 -``` -3. Build it with `nasm -f bin os.asm -o os.bin` -4. Run it with `qemu-system-i386 -d guest_errors -drive format=raw,file=./os.bin` -5. ...enjoy error messages.""" -additional = "n/a" |