CVS commit: src/sys

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

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.