"panic: trap: fast data access mmu miss" in m_copym

[Kris Kennaway]

On Tue, Apr 19, 2005 at 08:36:28AM +0100, Robert Watson wrote:
> On Mon, 18 Apr 2005, Kris Kennaway wrote:
> 
> >This on an u10 running
> >
> >FreeBSD 5.3-STABLE (NETBOOT) #1: Sun Dec 12 18:38:35 JST 2004
> >
> >It may already be fixed, but since this is clearly a very infrequent 
> >problem (the other 7 machines with the same kernel have been running for 
> >months) it will be hard to tell empirically.
> >
> >Unfortunately I don't seem to have a kernel.debug for this machine.
> 
> Is it possible to build a kernel from around the right date and see how 
> closely things match?

I could, but I don't know how well this is likely to work.
 
> Do you have the full trap message?

The full trap message is as above.  sparc64 doesn't seem to give very
detailed trap information.

> There was a 
> 2005/01/12 change to tcp_output.c that corrected a possible crash, but I 
> don't have the details of the crash on-hand to know if it's the same one. 
> A lin number would be very helpful, even approximate, for the call to 
> m_copym() in tcp_output(), as well as the full fault message.

I'll try to get the line number.

Kris
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 187 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-sparc64/attachments/20050419/9e90a9fb/attachment.bin