On Fri, 1 Dec 1995 20:46:55 -0800 
 gdonl@gv.ssi1.com (Don Lewis) wrote:

 > This problem does not seem to occur if all the filesystems are built
 > with 4K blocks and 1K fragments.  The panic reliably occurs if I use
 > 8K blocks and 1K fragments.
 > 
 > Looks like some sort of wierd filesystem bug to me.

Hi ... sorry I've been slow to reply to this ...

I think this might be similar to a problem Gordon Ross encountered on the 
sun3 related to page size and the vfs clustering stuff.  Gordon?

 > 
 > On Dec 1,  5:39pm, Don Lewis wrote:
 > } Subject: Re: problem installing NetBSD-1.1 on hp425t
 > } On Dec 1,  7:01am, Don Lewis wrote:
 > } } Subject: problem installing NetBSD-1.1 on hp425t
 > } } I've run into a problem installing 1.1 on an hp425t.  The installation
 > } } script gets most of the way through, but blows up making the devices.
 > } } 
 > } } Making devices...vm_fault(105000, 4ef80000, 1, 0) -> 1
 > } }   type 8 code[mmu,,ssw]:505
 > } } trap type 8, code: 505, v=4ef80400
 > } } kernel: MMU fault trap
 > } } pid=462, pc=0002FE06, s=2004, sfc=0001, dfc=0001
 > } } 
 > } } followed by a register dump and a kernel stack dump.
 > } 
 > } More information (please excuse any typos):
 > } 
 > } _Debugger(...) + 6
 > } _panic(...) + 34
 > } _trap(8, 505, 4ef8040) + 1be
 > } _addrerr(?)
 > } _vgone(1c4b300, 5, 2180, 1c4b300, 1c4b31c) + de
 > } _ufs_inactive(797dc8, 1c4b300, 1c1e500, a8520, 1c4b300) + 18e
 > } _vrele(1c4b300, 2f99a, a85a4, 1c4b300, 797e3c) + 52
 > } _vput(1c4b300, 1c4b480, 1c1ac00, c, 0) + 2c
 > } _ufs_makeinode(2180, 1c4b480, 797eb0, 797ec4) + 248
 > } _ufs_mknode(797e8c, e8, e, fa056, 0) + 32
 > } _sys_mknode(1c51d00, 797f88, 797f80) + 1d8
 > } _syscall(e) + 10a
 > } _trap0() + e
 > }-- End of excerpt from Don Lewis

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Jason R. Thorpe                                       thorpej@nas.nasa.gov
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