Re: CONFIG_NUMA breaks hibernation on x86-32 with PAE


* Pavel Machek <pavel@xxxxxxx> wrote:


* Pavel Machek <pavel@xxxxxxx> wrote:

...at least on 2.6.27 and 2.6.28-rc3. Resume gets to
acpi_hibernation_leave, then SLAB corruption is detected and machine
ends in series of oops.

Any ideas how to debug that?

do you get any serial log or USB key output, so that it's debuggable
directly?

Well, I can transcribe the BUG() from a picture, I guess, but it does
not seem to contain much useful info: SLAB corruption was detected and
backtrace is not quite important at that point...

Serial console is probably possible, but would take few days to setup.

No good ideas - the bug description gives me the impression of memory
maps save/restore hickup in the hibernation code - and memory maps are
pretty much the only thing that are significantly different on NUMA.
(amongst the things that would matter to hibernation - there's a lot
more other NUMA details)

In any case, could you send the .config that fails please, so that
this is documented better?

Ingo
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