[Xen-bugs] [Bug 879] New: DomU with deligated pci nic crashes on traffic

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=879

           Summary: DomU with deligated pci nic crashes on traffic
           Product: Xen
           Version: unspecified
          Platform: x86
        OS/Version: Linux-2.6
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Unspecified
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: schwarzj@xxxxxxxxx


Hello Guy's,
i'm running Xen 3.0.3 on Debian Sarge. 
I delegated the domu (firewall domu) an pci nic (3COM 905 C-TX-M) to connect a
cable modem. An sencond bridged VIF is connected to the domu.
Every time I route traffic through the firewall, the domu crash.
I've tried another nic in almost the same manner...
The same problem exists in xen 3.0.2 I used before.

Please help me!
Thanks, Juergen

skb_over_panic: text:c02479e9 len:3834 put:3780 head:c782b800 data:c782b810
tail:c782c70a end:c782bd40 dev:eth0
------------[ cut here ]------------
kernel BUG at net/core/skbuff.c:94!
invalid opcode: 0000 [#1]
CPU:    0
EIP:    0061:[<c0245083>]    Not tainted VLI
EFLAGS: 00010286   (2.6.16.29.fw.v3 #1)
EIP is at skb_over_panic+0x63/0x70
eax: 00000073   ebx: c781d760   ecx: c0301bac   edx: fbffd000
esi: 00000000   edi: c782b846   ebp: c782bd54   esp: c0345c8c
ds: 007b   es: 007b   ss: 0069
Process swapper (pid: 0, threadinfo=c0344000 task=c0300140)
Stack: <0>c02f8f40 c02479e9 00000efa 00000ec4 c782b800 c782b810 c782c70a
c782bd40
       c00d6400 c02479f5 c781d760 00000ec4 c02479e9 0000a079 0464a8c0 bf41353c
       00000000 00000ec4 00000010 00000efa 00000000 00000000 00000001 000004ec
Call Trace:
 [<c02479e9>] skb_segment+0x409/0x4a0
 [<c02479f5>] skb_segment+0x415/0x4a0
 [<c02479e9>] skb_segment+0x409/0x4a0
 [<c027f0ac>] tcp_tso_segment+0xdc/0x280
 [<c0299bfe>] inet_gso_segment+0x14e/0x1b0
 [<c024af56>] skb_gso_segment+0xc6/0x190
 [<c0354da0>] system_bus_init+0x10/0x20
 [<c024b0ed>] dev_gso_segment+0x1d/0x50
 [<c024b198>] dev_hard_start_xmit+0x78/0x120
 [<c02574c4>] __qdisc_run+0x64/0x1c0
 [<c024b48b>] dev_queue_xmit+0x24b/0x2d0
 [<c0354da0>] system_bus_init+0x10/0x20
 [<c02751f6>] ip_output+0x126/0x290
 [<c0277bc0>] ip_finish_output+0x0/0x1e0
 [<c02736a4>] ip_forward+0x174/0x260
 [<c0273790>] ip_forward_finish+0x0/0x40
 [<c0271f22>] ip_rcv+0x272/0x4f0
 [<c02722e0>] ip_rcv_finish+0x0/0x270
 [<c024b937>] netif_receive_skb+0x167/0x1f0
 [<c0236bf2>] netif_poll+0x392/0x630
 [<c01f65ab>] add_timer_randomness+0x11b/0x120
 [<c024bb85>] net_rx_action+0x85/0x140
 [<c011e445>] __do_softirq+0x95/0xb0
 [<c011e4ad>] do_softirq+0x4d/0x50
 [<c01068af>] do_IRQ+0x1f/0x30
 [<c022a082>] evtchn_do_upcall+0x62/0x90
 [<c0104e8d>] hypervisor_callback+0x3d/0x48
 [<c0108c67>] safe_halt+0x27/0x50
 [<c0102a92>] xen_idle+0x22/0x40
 [<c0102af3>] cpu_idle+0x43/0x50
 [<c034679c>] start_kernel+0x15c/0x180
 [<c0346310>] unknown_bootoption+0x0/0x1e0
Code: 90 00 00 00 89 44 24 10 8b 44 24 2c 89 44 24 0c 8b 41 60 c7 04 24 40 8f
2f c0 89 44 24 08 8b 44 24 30 89 44 24 04 e8 2d 4c ed ff <0f> 0b 5e 00 11 67 2f
c0 83 c4 24 c3 90 83 ec 24 ba fe 9b 2e c0
 <0>Kernel panic - not syncing: Fatal exception in interrupt


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