linux-kernel - Next July 27: boot failure(hang) on x86

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Date:	Mon, 27 Jul 2009 16:55:33 +0530
From:	Sachin Sant <sachinp@...ibm.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Next July 27: boot failure(hang) on x86_64 box.

Today's Next failed to boot on x86_64 box with following
messages.

PNP: No PS/2 controller found. Probing ports directly.
serio: i8042 KBD port at 0x60,0x64 irq 1
serio: i8042 AUX port at 0x60,0x64 irq 12
mice: PS/2 mouse device common for all mice
cpuidle: using governor ladder
cpuidle: using governor menu
TCP cubic registered
registered taskstats version 1
Freeing unused kernel memory: 1360k freed
Write protecting the kernel read-only data: 4980k

At this point the machine hangs. The corresponding code
looks to be the following snippet from init/main.c

static noinline int init_post(void)
        __releases(kernel_lock)
{
	......

        if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
                printk(KERN_WARNING "Warning: unable to open an initial console.\n");

^^^^^^^^^^^^^^^^ hangs here ^^^^^^^^^

	......
}

Next 20090723 was fine. (20090724 failed due to a failure
during 8250 init.)

Complete boot log and config attached.

Thanks
-Sachin

-- 

---------------------------------
Sachin Sant
IBM Linux Technology Center
India Systems and Technology Labs
Bangalore, India
---------------------------------

View attachment "next20090727-bootlog" of type "text/plain" (16246 bytes)

View attachment "config.next0727" of type "text/plain" (92220 bytes)