Bug 929102

Summary:	app-emulation/dosemu: dosemu crashes on some older hardware with >=sys-kernel/gentoo-sources-6.6.21
Product:	Gentoo Linux	Reporter:	Robert Gill <rtgill82>
Component:	Current packages	Assignee:	No maintainer - Look at https://wiki.gentoo.org/wiki/Project:Proxy_Maintainers if you want to take care of it <maintainer-needed>
Status:	UNCONFIRMED ---
Severity:	normal	CC:	ceamac, kernel, rtgill82
Priority:	Normal	Keywords:	PATCH
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://bugzilla.kernel.org/show_bug.cgi?id=218707
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	lscpu output for host01 (dosemu runs fine on this system) lscpu output for host02 crash report for host02 lscpu output for host03 crash report for host03 crash report for host03 (kernel 6.8.4)

Description Robert Gill 2024-04-10 20:18:04 UTC

dosemu crashes on some older hardware when running sys-kernel/gentoo-sources-6.6.21, runs fine on other hardware. I'm certain this is an upstream issue, I'll post another bug report upstream.

Reproducible: Always

Steps to Reproduce:
Run dosemu on some hardware with kernel 6.6.21 or more recent.
Actual Results:  
dosemu immediately crashes with a general protection fault
kernel: general protection fault: 0000 [#1] PREEMPT SMP PTI

Expected Results:  
dosemu should run without crashing

I'm including attachments describing the hardware it runs on and the hardware it fails on, as well as crash reports from the hardware where it fails. host01 is the system it runs on, it's currently running kernel version 6.6.21.

Comment 1 Robert Gill 2024-04-10 20:19:03 UTC

Created attachment 890399 [details]
lscpu output for host01 (dosemu runs fine on this system)

Comment 2 Robert Gill 2024-04-10 20:19:29 UTC

Created attachment 890400 [details]
lscpu output for host02

Comment 3 Robert Gill 2024-04-10 20:19:49 UTC

Created attachment 890401 [details]
crash report for host02

Comment 4 Robert Gill 2024-04-10 20:20:07 UTC

Created attachment 890402 [details]
lscpu output for host03

Comment 5 Robert Gill 2024-04-10 20:20:34 UTC

Created attachment 890403 [details]
crash report for host03

Comment 6 Robert Gill 2024-04-10 20:20:58 UTC

Created attachment 890404 [details]
crash report for host03 (kernel 6.8.4)

Comment 7 Robert Gill 2024-04-12 21:25:10 UTC

Opened a bug report on the kernel bug tracker.

https://bugzilla.kernel.org/show_bug.cgi?id=218707

Comment 8 Robert Gill 2024-04-27 20:14:17 UTC

The issue was fixed in the linked commit.

https://lore.kernel.org/all/20240426-fix-dosemu-vm86-v1-1-88c826a3f378@linux.intel.com/

Comment 9 Sam James archtester

2024-04-28 05:43:36 UTC

kernel@ should be cc'd :)