Messages in this thread | | | Date | Tue, 14 Jun 2011 16:50:33 +0200 | From | Maarten Lankhorst <> | Subject | Re: 2.6.39.1 immediately reboots/resets on EFI system |
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Hey,
Op 13-06-11 20:33, Matthew Garrett schreef: > Ok, that's odd. These are 0x01800000-0x01900000, which should lie inside > the kernel data range (01580279-01aa4cff : Kernel data). We should be > skipping that region. How are we touching that reange at all? Can you > add a printk to reserve_boot_services to see what it actually ends up > reserving? Finally success!
Didn't notice it before, but my efi memmap has: [ 0.000000] EFI: mem00: type=3, attr=0xf, range=[0x0000000000000000-0x0000000000008000) (0MB)
Later on this range gets reserved for bios:
[ 0.000000] e820 update range: 0000000000000000 - 0000000000010000 (usable) ==> (reserved) [ 0.000000] e820 remove range: 00000000000a0000 - 0000000000100000 (usable)
So I've added a check for e820.
Also with some digging into the swapper warning, it appears to be because some memory was allocated in the _init part of the kernel, which you didn't check for. this probably caused the warnings I had. Now I made sure to cover the entire kernel from _text to _end, which should cover the entire kernel.
~Maarten
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