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Date:      Sun, 16 Nov 2003 20:47:06 +0100
From:      Harald Schmalzbauer <h@schmalzbauer.de>
To:        current@freebsd.org
Subject:   Re: kernel panic with todays source
Message-ID:  <200311162047.13620@harrymail>
In-Reply-To: <200311160532.08710@harrymail>
References:  <200311160532.08710@harrymail>

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On Sunday 16 November 2003 05:32, Harald Schmalzbauer wrote:
> Hi,
>
> I saw that something has changed on ULE and wanted to give it a try but
> with sources from ~ So 16 Nov 2003 04:00 UTC I get the following kernel
> panic just before disk/geom and after Timecounter "TSC" frequency
> 1095341787 Hz quality 800:
>
> Fatal trap 12	:page fault while in kernel mode
> fault virtual address	=3D0x24
> fault code		=3Dsupervisor read, page not present
> instruction pointer	=3D0x8:0xc056c706
> stack pointer		=3D0x10:0xcdca4ca4
> frame pointer		=3D0x10:0xcdca4ca4
> code segment		=3Dbase 0x0, limit 0xfffff, type 0x1b
> 			=3DDPL 0, pres 1, def32 1, gran 1
> processor eflags	=3Dresume, IOPL=3D0
> current process		=3D11 (idle)
> trap number		=3D12
> panic: page fault
>
I recvsuped some hours ago and now I have the following (this time with DDB=
=20
trace):

=46atal trap 12: page fault while in kernel mode
fault virtual address	=3D 0x24
fault code		=3D supervisor read, page not present
instruction  pointer	=3D 0x8:0xc0571d36
stack pointer		=3D 0x10:0xcdca4ca4
frame pointer		=3D 0x10:0xcdca4ca4
code segment		=3D base 0x0, limit 0xfffff, type 0x1b
			=3D DPL 0, pres 1, def32 1, gran 1
processor eflags	=3D resume, IOPL=3D0
current process		=3D 11 (idle)
kernel: type 12 trap, code=3D0
Stopped at 	rman_get_bustag+0x6:	movl	0x24(%eax),%eax
db> trace
rman_get_bustag(0,cdca4cbc,c2d2f3d0,4ab1c,3a7ee2) at rman_get_bustag+0x6
acpi_cpu_idle(cdca4d08,c0535345,ffffffef,42b30,42830) at acpi_cpu_idle+0x1c3
cpu_idle(ffffffef,42b30,42830,42b30,43724) at cpu_idle+0x1f
idle_proc(0,cdca4d48,43160,437a4,3) at idle_proc+0x25
fork_exit(0c0535320,0,cdca4d48) at fork_exit+0x80
fork_trampoline() at fork_trampoline+0x8
=2D-- trap 0x1, eip =3D 0, esp =3D 0xcdca4d7c, ebp =3D 0 ---

This GDB was configured as "i386-undermydesk-freebsd"...
(kgdb) l *0xc0571d36
0xc0571d36 is in rman_get_bustag (/usr/src/sys/kern/subr_rman.c:661).
656     }
657
658     bus_space_tag_t
659     rman_get_bustag(struct resource *r)
660     {
661             return (r->r_bustag);
662     }
663
664     void
665     rman_set_bushandle(struct resource *r, bus_space_handle_t h)
(kgdb) l *0xcdca4ca4
No source file for address 0xcdca4ca4.

Hope this helps.

=2DHarry

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