panic on 4.10-STABLE boot w/SMP (same here)

[Kay Lehmann]

Hello,

I just wanted you to know that you are not alone. This happened to me, 
too. I get a similar error with a 4-stable-system from tonight. One 
difference is, that I have two 1600-MP's build in.
4.10-RELEASE worked fine for me, so it seems to be a real new problem.

Greets,
Kay

p.s.: if I sould send some more infos, like kernel config please tell 
me. I just thought they won't bring much new infos.

Scott Johnson wrote:
> Hi all,
> 
> I cvsup'ed to the latest stable yesterday.  My new kernel config looks
> like this:
> 
...
> 
> As you can see, the changes are minor.  I removed support for
> processors that I'll never use.  I removed IPV6.  And I enabled SMP. 
> But when I boot, I get a panic every time:
> 
> Fatal trap 18: integer divide fault while in kernel mode
> mp_lock = 0000000d; cpuid = 0; lapic.id = 00000000
> instruction pointer     = 0x8:0xc038e20c
> stack pointer           = 0x10:0xc0560f44
> frame pointer           = 0x10:0xc0560f88
> code segment            = base 0x0, limit 0xfffff, type 0x1b
>                         = DPL 0, pres 1, def32 1, gran 1
> processor eflags        = interrupt enabled, resume, IOPL = 0
> current process         = Idle
> interrupt mask          = net tty bio cam  <- SMP: XXX
> kernel: type 18 trap, code=0
> Stopped at      0xc038e20c:     divl    0xc04a268c,%eax
> db> trace
> (null)(d093c708,c0560fa0,c038d8e8,9f000,c0560fe4) at 0xc038e20c
> (null)(9f000,c0560fe4,c03886fa,c041fcc0,5d169000) at 0xc038dbdc
> (null)(c041fcc0,5d169000,0,1745a4,0) at 0xc038d8e8
> (null)(0,55dc00,568000,0,c013176d) at 0xc03886fa
> (null)(0,0,0,0,0) at 0xc0221f20
> (null)() at 0xc013176d
> 
>>From what I can tell, the closest symbol to the listed instruction
> pointer is this:
> c038e2bc t mptable_hyperthread_fixup
> 
> My system has two Athlon XP 1600+ processors.  I understand that these
> are not MPs, but they've worked fine under SMP for quite some time
> now.  I've been running 4.9-STABLE up until I decided to upgrade
> recently.
> 
> Also, when I disable SMP, the same kernel config boots without issue.
> 
> Any ideas?  If I can provide any further information, just let me know
> what you need to help.
> 
> Thanks,
> Scott Johnson