PR/60556 CVS commit: src/sys

The following reply was made to PR port-amd64/60556; it has been noted by GNATS.

From: "Taylor R Campbell" <[email protected]>
To: [email protected]
Cc: 
Subject: PR/60556 CVS commit: src/sys
Date: Thu, 20 Aug 2026 16:20:55 +0000

 Module Name:	src
 Committed By:	riastradh
 Date:		Thu Aug 20 16:20:55 UTC 2026
 
 Modified Files:
 	src/sys/arch/amd64/amd64: process_machdep.c
 	src/sys/arch/i386/i386: process_machdep.c
 	src/sys/arch/x86/include: dbregs.h
 	src/sys/arch/x86/x86: dbregs.c
 	src/sys/kern: sys_process_lwpstatus.c
 	src/sys/sys: ptrace.h
 
 Log Message:
 x86: Pull dbregs buffer allocation out from under lwp_lock.
 
 Sprinkle assertions and notes about locking rules while here.
 
 PR kern/60595: System lockup using gdb(1) on kernel with DEBUG+LOCKDEBUG
 
 This fixes a bug that was revealed by lifting up rock while fixing:
 
 PR kern/60556: panic in process_read_fpregs_xmm
 
 
 To generate a diff of this commit:
 cvs rdiff -u -r1.50 -r1.51 src/sys/arch/amd64/amd64/process_machdep.c
 cvs rdiff -u -r1.97 -r1.98 src/sys/arch/i386/i386/process_machdep.c
 cvs rdiff -u -r1.8 -r1.9 src/sys/arch/x86/include/dbregs.h
 cvs rdiff -u -r1.15 -r1.16 src/sys/arch/x86/x86/dbregs.c
 cvs rdiff -u -r1.7 -r1.8 src/sys/kern/sys_process_lwpstatus.c
 cvs rdiff -u -r1.77 -r1.78 src/sys/sys/ptrace.h
 
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.