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Date: Mon, 11 Mar 2002 10:01:50 +0200 (SAST)
From: Zwane Mwaikambo <zwane@linux.realnet.co.sz>
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To: Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Few questions about 2.5.6-pre3
Message-ID: <Pine.LNX.4.44.0203110947110.19020-100000@netfinity.realnet.co.sz>
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Has anyone come across the following bootime bugs?

2.5.6-pre3 UP:

  init_idle(current, smp_processor_id());
        /*
         *      We count on the initial thread going ok
         *      Like idlers init is an unlocked kernel thread, which will
         *      make syscalls (and thus be locked).
         */
        smp_init();
			<=== [1]
        /* Do the rest non-__init'ed, we're now alive */
        rest_init();

[1] If i don't put a busy loop or a printk there the machine pukes in 
do_page_fault when we try and down_read(&mm->mmap_sem); The dump shows 
that current is an invalid pointer and has crazy PID and other fields.

2.5.6-pre3 SMP:

This one is a funny one, it dies *right* after mtrr_init, and even if i 
put a BUG() after mtrr_init, it never gets executed. This one happens to 
die in the scheduler when we try and release_kernel_lock(prev, 
smp_processor_id()) It already is released so we trigger an Oops in 
spinlock.h:107

Thanks,
	Zwane Mwaikambo


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