查看捉虫日记 0004: jiffies stop的源代码

== Phenomenon ==

Update emma3p to 2.6.26, kernel hang in calibrate_delay(), trace the function and found that jiffies is stop to update, following is the log:

<pre>
Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 64kB, 4-way, VIPT, cache aliases, linesize 32 bytes
PID hash table entries: 1024 (order: 10, 4096 bytes)
before time_init
jiffies=4294892296
>> before sched_clock_init
Console: colour dummy device 80x25
console [ttyS0] enabled
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
before mem_init
Memory: 156900k/163840k available (3971k kernel code, 6788k reserved, 718k data, 208k init, 0k highmem)
>>before calibrate_delay
Calibrating delay loop... <0> ticks=4294892296, jiffies=4294892296
</pre>

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