Re: I just got got another Oops

[David Newall]

Gene Heskett wrote:
> Mar 12 01:15:01 coyote xinetd[2583]: START: amanda pid=8970 from=::ffff:192.168.71.3                                                     
> Mar 12 01:16:21 coyote kernel: [10353.910914] BUG: unable to handle kernel NULL pointer dereference at 00000006
> Mar 12 01:16:21 coyote kernel: [10353.910921] IP: [<c046520b>] get_page_from_freelist+0x24b/0x4c0
> Mar 12 01:16:21 coyote kernel: [10353.910929] *pdpt = 0000000000b38001 *pde = 0000000000000000
> Mar 12 01:16:21 coyote kernel: [10353.910934] Oops: 0000 [#1] PREEMPT SMP

I think there must be a zone at 0x0.  Try adding

		if (!zone) goto try_next_zone;


in mm/page_alloc.c, (near line 1469), before

		if (NUMA_BUILD && zlc_active &&

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