panic: bus_dmamap_load_mbuf_sg still there

[Tom Samplonius]

  I have a Soekris board, so I'm interested.  What's the PR number for the bug?  How frequently does it occur?

  It is good to log all of the details to the PR.

----- Andrea Campi <andrea+freebsd_stable at webcom.it> wrote:
> Hi,
> 
> this panic has been reported a few times in the past, both by me and
> other people; I just updated my Soekris box to 6.2-RC2 and it's still
> happening.
> 
> panic: bus_dmamap_load_mbuf_sg: no mbuf packet header!
> KDB: stack backtrace:
> panic(c06128c3,c060f93c,c055b9af,c0db804e,c0db803e,...) at panic+0xef
> bus_dmamap_load_mbuf_sg(c0d18e00,0,c0db8000,c0d627d8,c0d627b8,1) at
> bus_dmamap_load_mbuf_sg+0x4ec
> ath_start(c0d55000,35000,36,0,c1000000,...) at ath_start+0x26f
> ether_output_frame(c0d55000,c0fee600,c1000006,0,1,...) at
> ether_output_frame+0x226
> ether_output(c0d55000,c0fee600,c56f6bb0,c0feb840) at
> ether_output+0x2de
> ip_output(c0fee600,0,c56f6bac,1,0,0) at ip_output+0xaad
> ip_forward(c0cf9648,c56f6c78,c04e14dd,c066ca40,1,...) at
> ip_forward+0x120
> ip_input(c0fee600,18,c0673378,c56f6cec,c0541fd7,...) at
> ip_input+0x8d5
> netisr_processqueue(c0d12240,c0cef400,0,c56f6d0c,c04bd93b,...) at
> netisr_processqueue+0x13
> swi_net(0,c0cef438,c0cfaa80,c04bd740,c0cf9648,...) at swi_net+0x97
> ithread_loop(c0ce8750,c56f6d38,c0ce8750,c04bd740,0,...) at
> ithread_loop+0x1fb
> fork_exit(c04bd740,c0ce8750,c56f6d38) at fork_exit+0x83
> fork_trampoline() at fork_trampoline+0x8
> --- trap 0x1, eip = 0, esp = 0xc56f6d6c, ebp = 0 ---
> KDB: enter: panic
> [thread pid 13 tid 100003 ]
> Stopped at      kdb_enter+0x2c: leal    0(%esi),%esi
> 
> 
> It has been suggested that it may be pf-related, but I don't have a
> clue on how to go about digging more info out.
> Any idea?
> 
> Bye,
> 	Andrea
> 
> -- 
> If it's there, and you can see it, it's real. If it's not there, and
> you can see it, it's virtual. If it's there, and you can't see it,
> it's transparent. If it's not there, and you can't see it, you erased
> it.
> _______________________________________________
> freebsd-stable at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-stable
> To unsubscribe, send any mail to
> "freebsd-stable-unsubscribe at freebsd.org"