Without this patch a loop checking for emergency_sync_scheduled in panic() is optimized
away by gcc 3.1, which causes hangs in panic.
-Andi
diff -X ../../KDIFX -x *-o -x *-RESERVE -burpN ../../v2.5/linux/drivers/char/sysrq.c linux/drivers/char/sysrq.c
--- ../../v2.5/linux/drivers/char/sysrq.c Thu Mar 28 10:06:16 2002
+++ linux/drivers/char/sysrq.c Fri Apr 12 18:32:46 2002
@@ -186,7 +186,7 @@ static void go_sync(struct super_block *
* block devices and malfunctional network filesystems.
*/
-int emergency_sync_scheduled;
+volatile int emergency_sync_scheduled;
void do_emergency_sync(void) {
struct super_block *sb;
diff -X ../../KDIFX -x *-o -x *-RESERVE -burpN ../../v2.5/linux/include/linux/sysrq.h linux/include/linux/sysrq.h
--- ../../v2.5/linux/include/linux/sysrq.h Wed Apr 17 13:33:34 2002
+++ linux/include/linux/sysrq.h Sat Apr 20 16:12:00 2002
@@ -103,7 +103,7 @@ static inline int __reterr(void)
/* Deferred actions */
-extern int emergency_sync_scheduled;
+extern volatile int emergency_sync_scheduled;
#define EMERG_SYNC 1
#define EMERG_REMOUNT 2
-
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This archive was generated by hypermail 2b29 : Tue Apr 23 2002 - 22:00:26 EST