Date: Thu, 25 Apr 2013 03:05:15 +0100 From: Joe Holden <lists@rewt.org.uk> To: Warner Losh <imp@bsdimp.com> Cc: Joe Holden <joe@rewt.org.uk>, "freebsd-mips@FreeBSD.org" <freebsd-mips@freebsd.org> Subject: Re: kern/177876: [mips] kernel stack overflow panic on mips64, EdgeRouter Lite Message-ID: <51788F5B.2000905@rewt.org.uk> In-Reply-To: <1D07B1F7-A91A-49F4-80C6-7696F457EC74@bsdimp.com> References: <201304220300.r3M301iY093070@freefall.freebsd.org> <CAJ-Vmok7m9%2B3sky1swEP6ZTnZNLpkmwTC2tOqzGNaSFwY7WmFA@mail.gmail.com> <51753506.3070901@rewt.org.uk> <CAJ-VmomKi%2BpmZ6GAjds-=RXRET=aW65dsmxe3H4m%2BfdbxoecGw@mail.gmail.com> <CACVs6=8XdAgccufabeoXEXCFGGVZ_EWJ8c-KdRz4xr9SvBxrrw@mail.gmail.com> <EBE52100-4C0F-4B61-B872-CA30B99E2940@bsdimp.com> <CACVs6=8Hv5uF0zV=3%2BkZ=zsObSfQjiSY4t3op1EBytrunJdCGg@mail.gmail.com> <E13A6CE1-C0ED-420E-9BE4-28FA3EAD55EC@bsdimp.com> <5176FB36.2070809@rewt.org.uk> <163C6DC2-D817-4176-BE96-ACAA56BD8F87@bsdimp.com> <51781614.1060306@rewt.org.uk> <1D07B1F7-A91A-49F4-80C6-7696F457EC74@bsdimp.com>
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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@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
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