From mboxrd@z Thu Jan  1 00:00:00 1970
From: bugme-daemon@bugzilla.kernel.org
Subject: [Bug 10216] kernel from different versions hangs with some CD/DVD drives
Date: Sun,  7 Dec 2008 14:38:55 -0800 (PST)
Message-ID: <20081207223855.458C310800C@picon.linux-foundation.org>
References: <bug-10216-11633@http.bugzilla.kernel.org/>
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http://bugzilla.kernel.org/show_bug.cgi?id=10216





------- Comment #32 from sshtylyov@ru.mvista.com  2008-12-07 14:38 -------
(In reply to comment #31)
> Sergei: I looked into it (under QEMU for now) and adding msleep(1000) +
> printk() to ide_init() causes the "Clocksource tsc unstable" to appear before
> IDE initialization so it seems that the issue is caused by some other kernel
> code and IDE is just unlucky to be initialized at same time as clocksource
> watchdog triggers.

I guess it's caused by mspleep(1000) call itself. If ide_wait_not_ready() is
touching the other watchdogs anyway, I don't see why it shouldn't touch the
clocksource watchdog too.


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