kern/177876: [mips] kernel stack overflow panic on mips64, EdgeRouter Lite

[Joe Holden]

Warner Losh wrote:
> On Apr 24, 2013, at 11:27 AM, Joe Holden wrote:
> 
>> Warner Losh wrote:
>>> On Apr 23, 2013, at 3:20 PM, Joe Holden wrote:
>>>> Warner Losh wrote:
>>>>> I just committed r249790 which makes everything match.
>>>>> On Apr 22, 2013, at 2:29 PM, Juli Mallett wrote:
>>>>>> On Mon, Apr 22, 2013 at 1:27 PM, Warner Losh <imp at bsdimp.com> wrote:
>>>>>>> It sure looks like you are right...  I have a full new tree building just to make sure... :(
>>>>>>>
>>>>>>> Then again, it would be useful to document where these dependencies lie to help prevent others from tripping over this in the future :(
>>>>>> We should use genassym to generate trapframe offsets instead of having
>>>>>> hand-coded defines for these, perhaps?  I haven't thought it through
>>>>>> very fully, but that seems a lot better.
>>>>> I'll look into this...
>>>>> Warner
>>>> I rebuilt just the kernel but the same problem persists - started building world and I'm seeing:
>>>>
>>>> /usr/src/gnu/usr.bin/gdb/kgdb/trgt_mips.c:122: error: 'struct trapframe' has no member named 't4'
>>>>
>>>> and so on, have just commented them out for now so it completes, may just be left overs from previous build - may be getting confused :)
>>> You can just rebuild the kernel (I'll fix the kgdb stuff, I didn't see that when I built the world for some reason).
>>> Please try this patch to see if this fixes it.
>>> Warner
>> So far so good, boots into multiuser - will give it a thrashing and see if I can make it break :)
> 
> Thanks Joe.  I'll go ahead and commit it then and work on a longer term solution.
> 
> Warner
> 
Excellent, still seeing trapframe panics under cpu load but it's at 
least usable!

I'll let you get on with fiddling now :)

Cheers