2.6.16-rc6-git[12] spontaneous reboots on x86_64

[Andrew Clayton <andrew@rootshell.co.uk>]

Hi,

With the above kernels I am seeing spontaneous system reboots. Nothing
seems to get logged anywhere and when I've been at the console I haven't
noticed any oops or anything before the machine resets.

This was first triggered by accessing a usb key drive thing, this
happened a couple of times and then this morning while investigating
some more it happened as I was exiting my X session.  

The machine is an AMD Athlon(tm) 64 Processor 3500+ (Single processor,
single core), with 1GB RAM. GCC is gcc (GCC) 4.0.2 20051125 (Red Hat
4.0.2-8) from Fedora Core 4


2.6.16-rc6 is working fine.


The following change looked an obvious candidate

http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c33d4568aca9028a22857f94f5e0850012b6444b

So I took a 2.6.16-rc6-git2 tree and reverted arch/x86_64/kernel/entry.S
to the one in 2.6.16-rc6 and so far (35 minutes) no problems.



Let me know if you'd like any more info.


Cheers,

Andrew


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