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Diffstat (limited to 'results/classifier/108/other/771')
| -rw-r--r-- | results/classifier/108/other/771 | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/results/classifier/108/other/771 b/results/classifier/108/other/771 new file mode 100644 index 00000000..26838e1c --- /dev/null +++ b/results/classifier/108/other/771 @@ -0,0 +1,29 @@ +graphic: 0.833 +performance: 0.746 +boot: 0.742 +device: 0.709 +socket: 0.376 +semantic: 0.362 +vnc: 0.319 +PID: 0.305 +debug: 0.278 +other: 0.250 +permissions: 0.144 +KVM: 0.131 +network: 0.064 +files: 0.063 + +No interrupts are delivered to the guest after rebooting Windows 98 +Description of problem: +After Windows 98 is rebooted in QEMU, the guest freezes: the system is unresponsive to key presses and the boot splash animation halts. The guest performs fine before the reboot. + +Closer examination reveals that no hardware interrupts are delivered to the guest. BIOS Data Area variables like the keyboard buffer and the system clock are not updated. Even non-maskable interrupts fail to be delivered, as witnessed by installing an option ROM that hooks interrupt vector 2 and issuing the `nmi` command in the monitor. + +The only remedy seems to be to exit the QEMU process entirely and launch it again. +Steps to reproduce: +0. Install Windows 98 into the guest. (Since the normal installation process already involves a couple of reboots, it is possible to hit the issue already at step zero.) +1. Boot it; it may be into Safe Mode, but the protected-mode graphical environment must at least attempt to load. (I managed sometimes to reproduce the bug without the system having loaded fully.) +2. Reboot. This may be a clean reboot, or it may be a hard reboot (`system_reset` or equivalent) +3. Observe the system freeze. +Additional information: +None |