Re: 11.4-BETA2 boot failure PowerMac G5

Greg Lewis <[email protected]>
Newsgroups gmane.os.freebsd.devel.ppc
Message-ID <[email protected]>
Thanks Justin!

It might take me a couple of days to get some time to build a new kernel
and get it tried out on the machine, but I'll give it a go and let you
know the results.


BTW, there is one typo in what I wrote, the machine is still on 11.0. 
So the breakage happened somewhere between 11.0 and 11.1.


-- Greg

On 2020-05-20 08:12, Justin Hibbits wrote:
> On Tue, 19 May 2020 21:39:59 -0700
> Greg Lewis <[email protected]> wrote:
>
>> Hi all,
>>
>> I've seen this on every 11.x release starting with 11.1 (the machine
>> is still running 11.1 as a result), but here is the boot failure for
>> 11.4-BETA2. I'm typing this in manually, so apologies for any errors.
>>  I'll also skip the first few lines for that reason.
>>
>> ...
>> VT(ofwfb): resolution 1920x1080
>>
>> fatal kernel trap:
>>
>>    exception       = 0x700 (program)
>>    srr0            = 0x380
>>    srr1            = 0x9000000000081000
>>    lr              = 0x99bec0
>>    cuthread        = 0
>>
>> panic: program trap
>> cpuid = 0
>> KDB: stack backtrace
>> #0 0x5d2c18 at .vpanic+0x190
>> #1 0x5d2cb4 at .panic+0x38
>> #2 0x9ac868 at .trap_fatal+0x1fc
>> #3 0x9addc4 at .trap+0x1528
>> #4 0x9a1dfc at .powerpc_interrupt+0x1c4
>> Uptime: 1s
>>
>> The machine is currently used to test FreeBSD/powerpc64 Java builds
>> for 11.x, which is why I haven't tried 12.x on it.
>>
>> If anyone is interested but needs more information, I'm happy to try
>> and gather it if you let me know what you're interested in.
>>
> Hi Greg,
>
> That's really odd, because the exception vectors are already
> programmed.  The fact that you're getting an illegal instruction
> exception at the entry point to the Data Segment Exception vector is
> really bizarre.
>
> Just for testing, can you try applying r347463 (setup the HIOR), and
> see if that helps at all?  I doubt it would, but never know.
>
> - Justin
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