With this patch, /sbin/hwclock no longer hangs my AMD64 machine when run
after reaching multiuser. What I don't understand is why. I have the
RTC based sound sequencer timer as a module, but not loaded, and the
error message I added to indicate broken rtc control does not fire.
So why is it that if I stop taking the rtc_task_lock and issuing the
callbacks which should never be held or exist that my system no longer
hard freezes?
Zach
--- /tmp/a 2007-05-03 15:36:07.451256181 -0700
+++ drivers/char/rtc.c 2007-05-03 15:27:49.000000000 -0700
@@ -265,10 +265,10 @@
spin_unlock (&rtc_lock);
/* Now do the rest of the actions */
- spin_lock(&rtc_task_lock);
- if (rtc_callback)
- rtc_callback->func(rtc_callback->private_data);
- spin_unlock(&rtc_task_lock);
+/* spin_lock(&rtc_task_lock); */
+// if (rtc_callback)
+// rtc_callback->func(rtc_callback->private_data);
+/* spin_unlock(&rtc_task_lock); */
wake_up_interruptible(&rtc_wait);
kill_fasync (&rtc_async_queue, SIGIO, POLL_IN);
@@ -811,6 +811,7 @@
int rtc_register(rtc_task_t *task)
{
+ printk(KERN_ERR "rtc_register is busted\n");
#ifndef RTC_IRQ
return -EIO;
#else
CONFIG_HPET_EMULATE_RTC=y
CONFIG_RTC=y
# CONFIG_HPET_RTC_IRQ is not set
CONFIG_SND_RTCTIMER=m
CONFIG_SND_SEQ_RTCTIMER_DEFAULT=y
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_DEBUG=y
# RTC interfaces
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
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