Bug 37523

Summary: [i386] [patch] lock for bios16 call and vm86call
Product: Base System Reporter: davidx <davidx>
Component: i386Assignee: freebsd-i386 (Nobody) <i386>
Status: Closed Overcome By Events    
Severity: Affects Only Me CC: davidxu, gonzo
Priority: Normal    
Version: 5.0-CURRENT   
Hardware: Any   
OS: Any   
Attachments:
Description Flags
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Description davidx 2002-04-28 10:40:01 UTC 
	vm86 calling and bios16 calling are sharing same physical page vm86phystk as 
	their stack, while vm86 code was already locked down, the 16 bits protected mode 
        bios calling can still escape from vm86 lock, and bios service itself may also
	not reentranable.
Comment 1 Mark Linimon freebsd_committer freebsd_triage 2004-09-11 20:47:43 UTC 
Responsible Changed
From-To: freebsd-bugs->davidxu

Submitter is now committer.
Comment 2 David Xu freebsd_committer freebsd_triage 2014-04-14 09:16:13 UTC 
Responsible Changed
From-To: davidxu->jhb

jhb@ may take a look.
Comment 3 Eitan Adler freebsd_committer freebsd_triage 2017-12-31 08:00:51 UTC 
For bugs matching the following criteria:

Status: In Progress Changed: (is less than) 2014-06-01

Reset to default assignee and clear in-progress tags.

Mail being skipped
Comment 4 Oleksandr Tymoshenko freebsd_committer freebsd_triage 2019-01-24 06:44:14 UTC 
David, is this PR still relevant?

Thanks
Comment 5 Oleksandr Tymoshenko freebsd_committer freebsd_triage 2019-01-25 18:51:32 UTC 
David is not working on this patch and doesn't know whether it's still relevant. Closing as OBE. Feel free to reopen if you think the issue is still valid in recent version of FreeBSD