On Thu, 4 Apr 2002, Bruce Evans wrote:
> bde 2002/04/04 09:49:49 PST
> Modified files:
> sys/alpha/alpha machdep.c
> sys/alpha/osf1 osf1_signal.c
> sys/coda coda_psdev.c
> sys/compat/linux linux_signal.c
> sys/compat/svr4 svr4_signal.c
> sys/i386/i386 machdep.c
> sys/i386/ibcs2 ibcs2_signal.c
> sys/i386/linux linux_sysvec.c
> sys/i386/svr4 svr4_machdep.c
> sys/ia64/ia64 machdep.c
> sys/kern kern_sig.c subr_trap.c
> sys/pc98/i386 machdep.c
> sys/sparc64/sparc64 machdep.c
> sys/sys proc.h signalvar.h
> Moved signal handling and rescheduling from userret() to ast() so that
> they aren't in the usual path of execution for syscalls and traps.
> The main complication for this is that we have to set flags to control
> ast() everywhere that changes the signal mask.
> Avoid locking in userret() in most of the remaining cases.
> Submitted by: luoqi (first part only, long ago, reorganized by me)
> Reminded by: dillon
Tha invariants check in this (in userret()) failed for the first time 10
minutes after I committed it. I think this is harmless (due to a cached
flag in ast()) but don't have time to check today. Turn off the check
if it spams the console but signals appear to work despite this.
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