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Diffstat (limited to 'results/classifier/gemma3:12b/peripherals/1574246')
| -rw-r--r-- | results/classifier/gemma3:12b/peripherals/1574246 | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/peripherals/1574246 b/results/classifier/gemma3:12b/peripherals/1574246 new file mode 100644 index 000000000..6bfa4843b --- /dev/null +++ b/results/classifier/gemma3:12b/peripherals/1574246 @@ -0,0 +1,22 @@ + +Drunken keyboard in go32v2 programs + +QEMU 2.5.0, SeaBIOS 1.9.1; I've been noticing this bug for quite a while, though. + +Steps to reproduce: + +# Create a VM image, install DOS in it (doesn't matter which) and launch it. +# Launch a "bare DOS" DPMI host (not an operating system) in it; I tested with CWSDPMI and HDPMI32. +# Run a go32v2 program which reads keyboard input (say, the Lua interpreter: <http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/distributions/1.1/repos/devel/lua.zip>; the Free Pascal IDE will also do; on the other hand, DOS/4GW programs seem unaffected). +# Quickly type in something random (e.g. alternate between hitting "p" and "q"), then optionally move the cursor left and right. +# Observe how some keystrokes are missed, and some are caught twice. + +The issue does NOT arise: +* on bare metal DOS, +* in VirtualBox, +* in Bochs with stock Plex86 BIOS, +* in Bochs with SeaBIOS, +* in DOSEMU, +* in DOSBox, +* in QEMU when the DPMI host is Windows 3.11/9x +so at this point I'm reasonably sure that it's the fault of either QEMU or SeaBIOS, and probably the former. The issue arises regardless of whether KVM is enabled. \ No newline at end of file |