Module Name: src
Committed By: tsutsui
Date: Sat Mar 29 16:46:19 UTC 2014
Modified Files:
src/sys/arch/atari/dev: event_var.h
Log Message:
Make sure to acquire proc_lock mutex on calling psignal(9) in EV_WAKEUP().
Without this, Xserver could cause panic on the DIAGNOSTIC kernel as x68k:
http://mail-index.netbsd.org/source-changes/2012/08/15/msg036632.html
To generate a diff of this commit:
cvs rdiff -u -r1.8 -r1.9 src/sys/arch/atari/dev/event_var.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/atari/dev/event_var.h
diff -u src/sys/arch/atari/dev/event_var.h:1.8 src/sys/arch/atari/dev/event_var.h:1.9
--- src/sys/arch/atari/dev/event_var.h:1.8 Sat Mar 14 14:45:56 2009
+++ src/sys/arch/atari/dev/event_var.h Sat Mar 29 16:46:19 2014
@@ -1,4 +1,4 @@
-/* $NetBSD: event_var.h,v 1.8 2009/03/14 14:45:56 dsl Exp $ */
+/* $NetBSD: event_var.h,v 1.9 2014/03/29 16:46:19 tsutsui Exp $ */
/*
* Copyright (c) 1992, 1993
@@ -69,8 +69,11 @@ struct evvar {
(ev)->ev_wanted = 0; \
wakeup((void *)(ev)); \
} \
- if ((ev)->ev_async) \
+ if ((ev)->ev_async) { \
+ mutex_enter(proc_lock); \
psignal((ev)->ev_io, SIGIO); \
+ mutex_exit(proc_lock); \
+ } \
}
void ev_init(struct evvar *);
