Re: [PATCH] i386 CPU hotplug updated for -mm

From: Zwane Mwaikambo
Date: Tue Oct 12 2004 - 09:54:33 EST


On Tue, 12 Oct 2004, Nathan Lynch wrote:

> Unable to handle kernel NULL pointer dereference at virtual address 00000004
> printing eip:
> c0145703
> *pde = 00000000
> Oops: 0000 [#1]
> PREEMPT SMP
> Modules linked in:
> CPU: 1

Ok, cpu1 took an interrupt and exploded, perhaps put a printk in
show_regs() to say whether it was offline, an interrupt must have snuck in
whilst it was offline.

> [<c029f6cd>] ide_intr+0xbd/0x160
> [<c0139d44>] handle_IRQ_event+0x34/0x70
> [<c0139e6c>] __do_IRQ+0xec/0x170
> [<c0108570>] do_IRQ+0x60/0xa0

Thanks,
Zwane
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