Panic on -CURRENT after LDT changes

Attilio Rao attilio at FreeBSD.org
Sat May 26 00:34:53 UTC 2007


Joe Marcus Clarke wrote:
> On Sat, 2007-05-26 at 01:58 +0200, Attilio Rao wrote:
>> Joe Marcus Clarke wrote:
>>> On Sat, 2007-05-26 at 00:50 +0200, Attilio Rao wrote:
>>>> Joe Marcus Clarke wrote:
>>>>> -----BEGIN PGP SIGNED MESSAGE-----
>>>>> Hash: SHA1
>>>>>
>>>>>
>>>>> Thanks.  I just finished building a PREEMPTION-less kernel.  I'll hold
>>>>> off on the test until I get your patch.
>>>> Hello Joe,
>>>> can you please try this patch:
>>>> http://users.gufi.org/~rookie/works/patches/sys_machdep.diff
>>>>
>>>> maybe using with and without PREEMPTION?
>>> With PREEMPTION yields a new crash:
>> Could you please re-download the patch and try this new one?
> 
> Ding, ding, ding.  With this patch plus PREEMPTION, I no longer get a
> crash.  Given that is the ideal state (i.e. closest to a GENERIC
> kernel), I think this is a winner.

Could you please try this better approach on a VANILLA kernel and say if 
it still works for you:
http://users.gufi.org/~rookie/works/patches/schedlock/ldt2.diff

Thanks a lot,
Attilio




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