Re: 2.6.18-rc2-mm1 - hard lockups on Dell C840

[Valdis.Kletnieks@vt.edu]

On Thu, 27 Jul 2006 01:56:39 PDT, Andrew Morton said:
> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc2/2.6.18-rc2-mm1/

I'm seeing pseudorandom hard lockups soon after boot on a Dell Latitude C840.
It just siezes up, even alt-sysrq is totally wedged, need to power cycle to
recover.  There doesn't seem to be a really obvious trigger - the first time it
died after all the /etc/rc5.d scripts, while trying to start the X server. The
second, I brought it up single-user, and it didn't even live long enough to
give me a prompt.  Multiple attempts hung at different places, but always
within 2-3 minutes.

2.6.18-rc1-mm1 works fine, as does 2.6.18-rc2 plus origin.patch and git-libata-all.patch
(vanilla -rc2 won't recognize my piix controller, not in a mood to reconfigure
to use ide rather than libata).

Off to go play bisect-the-mm, though it may be later in weekend before I
finish that...

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