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Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y

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From: Roland Dreier <rdreier@...>
To: Tony Luck <tony.luck@...>
Cc: David Miller <davem@...>, <mingo@...>, <linux-kernel@...>
Subject: Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y
Date: Wednesday, February 20, 2008 - 7:35 pm

> I just tried Ingo's patch[1] on a 2.6.25-rc2 kernel with printk timestamps
 > turned on ... and it booted just fine on my tiger4.  The default path
 > for non-boot cpus is from head.S to start_secondary(), and that
 > calls cpu_init() pretty quickly.  There shouldn't normally[2] be any
 > printk() calls on the non-boot cpu before it is safe to do so.

Hmm, current git + Ingo's patch still hangs on boot on my system
("Hitachi Cold Fusion-3e 2S4U" according to DMI).

 - R.
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Messages in current thread:
Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Roland Dreier, (Wed Feb 13, 2:24 am)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, David Miller, (Wed Feb 13, 3:01 am)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Ingo Molnar, (Wed Feb 13, 8:57 am)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, David Miller, (Wed Feb 13, 9:03 am)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Tony Luck, (Wed Feb 13, 8:59 pm)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, David Miller, (Wed Feb 13, 9:04 pm)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Tony Luck, (Wed Feb 13, 11:33 pm)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Roland Dreier, (Wed Feb 13, 11:47 pm)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Tony Luck, (Thu Feb 14, 5:27 pm)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Roland Dreier, (Thu Feb 14, 6:04 pm)
RE: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Luck, Tony, (Thu Feb 14, 6:23 pm)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Tony Luck, (Thu Feb 14, 10:17 pm)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Tony Luck, (Tue Feb 19, 6:40 pm)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Roland Dreier, (Wed Feb 20, 7:36 pm)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Roland Dreier, (Wed Feb 20, 7:35 pm)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Ingo Molnar, (Wed Feb 20, 4:12 am)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, David Miller, (Wed Feb 20, 4:15 am)
RE: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Luck, Tony, (Thu Feb 14, 2:24 pm)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Ingo Molnar, (Wed Feb 13, 9:06 am)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Ingo Molnar, (Wed Feb 13, 9:02 am)
Re: Strange hang on ia64 with CONFIG_PRINTK_TIME=y, Roland Dreier, (Wed Feb 13, 8:26 pm)