Messages in this thread | | | Subject | Re: Make sure we populate the initroot filesystem late enough | From | Benjamin Herrenschmidt <> | Date | Mon, 26 Feb 2007 16:53:27 +0100 |
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On Sun, 2007-02-25 at 23:01 -0500, David Woodhouse wrote:
> Yeah, I did that before giving up on it for the day and going in search > of dinner. It changes the failure mode to a BUG() in > cache_free_debugcheck(), at line 2876 of mm/slab.c > > It smells like the pages weren't actually reserved in the first place > and we were blithely allocating them. The only problem with that theory > is that the initrd doesn't seem to be getting corrupted -- and if we > were handing out its pages like that then surely _something_ would have > scribbled on it before we tried to read it. > > When I head back in tomorrow morning I'll instrument free_initrd_mem() > to check that the PageReserved bit was actually set on each page, before > clearing it. And I'll make the page allocation routines check whether > they're giving out pages between initrd_start and initrd_end, etc.
And check that we didn't end up stupidly having the initrd share a page with something else ... (like not aligned end or such thingy).
Ben.
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