Re: A possible bug?

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Date: Wed, 04 Jun 2003 02:12:14 -0400
To: Zbynek Houska <zhouska@cz.foxconn.com>

Zbynek Houska wrote:
> Dear all,
>
> when I tryied to mount an iso image over network (using samba) my computer
> unexpectedly crashed.
>
> I issued this command : mdconfig -a -t vnode -f
> /path/to/my/file/mounted/on-local-machine
>
> and since that kernel crashed, no ping response, nothing at all. I've been
> connected to this machine via ssh.
> I use 5.0 RELEASE with GENERIC kernel on P3/1 Ghz, 128 MB RAM.
>
> It happens again when I issue same command and therefore I tryied to add
> "dumpon=Yes" to my /etc/rc.conf, but nothing has been written to /var/crash.
> So I enclose message from screen:
>
> Fatal trap 12 : page fault while in kernel mode
> faukt virtual address = 0x0
> fault code = supervisor read, page not present
> instruction pointer = 0x8:0xc1c50d4a
> stack pointer = 0x10:0xcd1b8718
> frame pointer = 0x10:0xcd1b8738
> code segment = base 0x0, limit 0xfffff, type 0x1b
> = DPL 0, pres 1, def31 1, gran 1
> processor eflags = interrupt enabled, resume,IOPL = 0
> current proccess = 549 (mdconfig)
> trap number = 12
> panic:fault page

I'm seeing the same thing with 5.1-RC1. Tried to mount an ISO image
with mdconfig -a -t vnode -f isofile -u 0 and FreeBSD immediately
panic-ed. The iso file resided on a samba mount, which I had mounted
with mount_smbfs. I'll try cp-ing the file to my local UFS filesystem,
and then try mdconfig, and see if I get the panic again.

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• Previous message: Terry Lambert: "Re: umtx/libthr SMP fixes."
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