[PATCH] pi-futex: futex code cleanups

[linux-2.6-omap-h63xx.git] / kernel / power / Kconfig

diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index cdf315e794fff7ea7a3e68a548e8f7ade471c993..857b4fa091244758b5fc0976cf44d58f914f20ec 100644 (file)
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -38,13 +38,22 @@ config PM_DEBUG
 
 config PM_TRACE
        bool "Suspend/resume event tracing"
-       depends on PM && PM_DEBUG && X86
-       default y
+       depends on PM && PM_DEBUG && X86_32 && EXPERIMENTAL
+       default n
        ---help---
        This enables some cheesy code to save the last PM event point in the
        RTC across reboots, so that you can debug a machine that just hangs
        during suspend (or more commonly, during resume).
 
+       To use this debugging feature you should attempt to suspend the machine,
+       then reboot it, then run
+
+               dmesg -s 1000000 | grep 'hash matches'
+
+       CAUTION: this option will cause your machine's real-time clock to be
+       set to an invalid time after a resume.
+
+
 config SOFTWARE_SUSPEND
        bool "Software Suspend"
        depends on PM && SWAP && (X86 && (!SMP || SUSPEND_SMP)) || ((FRV || PPC32) && !SMP)