Messages in this thread | | | Date | Tue, 15 Apr 2008 09:02:53 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [bug] SLUB + mm/slab.c boot crash in -rc9 |
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On Tue, 15 Apr 2008, Ingo Molnar wrote: > > debug output is: > > http://redhat.com/~mingo/misc/log-Thu_Apr_10_10_41_16_CEST_2008.bad.rc9 > > so it's probably the first few page allocations (setup_cpu_cache()) > going wrong already - suggesting a some fundamental borkage in SLAB?
Well, I think it suggests some fundamental borkage in the page allocator.
That first warn-on is from the "alloc_pages_node()" returning NULL at bootup. Sure, it could be that the arguments are bogus, but that sounds unlikely since none of that is dependent on any kconfig stuff.
The fact that it happens with both SLUB/SLAB makes that even more obvious.
Now, you don't have fault injection on, so it can't be that, and your debug entry for *z == NULL didn' trigger in alloc_pages, so it's no that one either.
However, if __alloc_pages() failed, I would have expected to see the "memory allocation failed" printk. Why didn't it? Is printk_ratelimit() broken at boot (last_msg start out as zero - maybe i should start out as a negative number)?
Linus
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