Hi Kurt,

I had a similar problem running on a Sparc 20. Except the panic occurred
just as the root filesystem was being mounted during bootup. I also
commented out all the references to non-sun4m stuff in the config file.

I haven't recompiled a "more" generic kernel yet....


Kurt Schreiner wrote:
> 
> hi,
> 
> just compiled a new kernel for my ss5 from the source suped this
> morning. the "make depend && make clean && make" was ok, but the new
> kernel failed with a panic: kernel data fault trying to start init:
> 
> ....
> root file system type: ffs
> uvm_swap: allocated 256 swap buffer headers
> data fault: pc=0xf00fbec8 addr=0x1f8 sfsr=126<FAV>
> panic: kernel fault
> Stopped at    _Debugger+0x4: jmpl       [%o7+0x8], %g0
> db>
> db> trace
> _mem_access_fault4m(...)
> mem_access_fault4m+0x308
> memfault_sun4m(...)
> _uvm_fault(...)
> _mem_access_fault4m(...)
> memfault_sun4m(...)
> _copyout(...)
> copyout+0x28
> _sys_execve(...)
> _start_init(...)
> _proc_trampoline(...)
> 
> maybe that's happening because I commented out all references to
> non-sun4m options in the config file? or may it have something to do
> with swap? any clues anyone?
> 
> i'll now compile a more generic kernel to see if the problem persists.
> 
> btw: my (i386-)notebook is running fine with UVM since last night...
> (no ps, vmstat, etc but... ;-)
> 
> -kurt

-- 
Brett Chappell
NSWCDD
(540) 653-1568
FAX: (540) 653-8673