Hi,
On Mon, Dec 5, 2011 at 11:12 PM, Arnaud Lacombe <lacom...@gmail.com> wrote:
> On Mon, Dec 5, 2011 at 5:15 PM, Arnaud Lacombe <lacom...@gmail.com> wrote:
>> Hi,
>>
>> The kernel tree is utterly broken when PAE is enabled, it chokes
>> [non-exclusively] on the following:
>>
> After finally having been able to complete a build, the resulting
> kernel miserably panics on:
>
> real memory: 25769803776 (24576 MB)
> panic: kmem_suballoc: bad status return of 3
>
Just for the fun, after having fought for 8h for nearly nothing with
FreeBSD, I thought it would be fair to give it a try with Linux, say
the latest -rc, that is 3.2-rc3, with a snapshot of the upcoming
openwrt. The result:
root@OpenWrt:/# free
total used free shared buffers
Mem: 16628216 14864 16613352 0 236
-/+ buffers: 14628 16613588
Swap: 0 0 0
total time spent to get to userland: about 30 min.
too easy... Let's give it a try with a system with 32GB of RAM:
root@OpenWrt:/# free
total used free shared buffers
Mem: 33274356 17124 33257232 0 252
-/+ buffers: 16872 33257484
Swap: 0 0 0
d'oh!
ok, I'm not entirely honest, tmpfs chocked:
tmpfs: Bad value '1.70365e+10' for mount option 'size'.
Let's give it a try with 60GB now:
root@OpenWrt:/# free
total used free shared buffers
Mem: 62405104 17116 62387988 0 256
-/+ buffers: 16860 62388244
Swap: 0 0 0
damn... Linux' no fun... :-(
- Arnaud
ps: the kernel actually panic with the full 64GB of RAM, while
mounting the filesystem.
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