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Date:      Fri, 14 May 1999 03:21:16 +0200
From:      Philipp Mergenthaler <un1i@rz.uni-karlsruhe.de>
To:        dave adkins <adkin003@tc.umn.edu>
Cc:        current@FreeBSD.ORG
Subject:   Re: Today's kernel crashes on starting X
Message-ID:  <19990514032116.A19700@rz.uni-karlsruhe.de>
In-Reply-To: <Pine.NEB.4.01.9905130518490.301-100000@tc.umn.edu>; from dave adkins on Thu, May 13, 1999 at 05:25:54AM -0500
References:  <3D5EC7D2992BD211A95600A0C9CE047F0308D99F@isjhbex01.is.co.za> <Pine.NEB.4.01.9905130518490.301-100000@tc.umn.edu>

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On Thu, May 13, 1999 at 05:25:54AM -0500, dave adkins wrote:
> 
> I think it's the recent dev_t changes causing problems.   
> I haven't tracked it any further. 
> 
> Try changing:
> 
> 	 #define DEVT_FACIST 1 
> 
> in kern/kern_conf.c to 
> 
>         #undef DEVT_FACIST 
> 
> It has fixed my X crash. 
> dave adkins

This also fixes the panic that I got with mfs_mount:
(with "options MFS" in the config file, 'cvsup'ed at May 13th 19:43 UTC)

Fatal trap 12: page fault while inkernel mode
fault virtual address	= 0x9d19fd34
fault code		= supervisor read, page not present
instruction pointer	= 0x8:0xc016f7a0
stack pointer		= 0x10:0xc494cd68
frame pointer		= 0x10:0xc494cd94
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, Rres 1,def 32 1, gran 1
processor eflags	= interrupt enabled, resume, IOPL=0
current process		= 38 (mount_mfs)
interrupt mask		=
kernel: type 12 trap, code: 0
stopped at checkalias+0x150:	movl cdevsw(%eax), %edx

db> trace
checkalias(c4478980, ff00, 0) at checkalias+0x150
mfs_mount(c08a3e00, bfbfde98, bfbfd7ac, c494cea0, c44804c0) at mfs_mount+0x132
mount(c44804c0, c494cf80,0,80691e0,2000) at mount+0x50e
syscall(2f,2f,2f,2000,80691e0) at syscall+0x182
Xint0x80_syscall() at Xint0x80_syscall+0x30

Bye, Philipp



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