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xen-devel
Re: [Xen-devel] a domain VTx with the VNIF does hang.
The patch which fix a inter-domain communication using rx-copy path
was released in the changeset 11737.
I confirmed that the problem was fixed in the changeset 11751.
Thank you.
Hirofumi Tsujimura wrote:
> Hi all, my name is Hirofumi Tsujimura.
> We are porting and testing a PV-on-HVM in the IPF.
> This is a first time to send mail.
>
> I probably found the problem when I tested the VNIF.
> My operation for the test is following.
> 1. create a domain VTx and attach the VNIF in it.
> 2. create a domain U.
> 3. send a packet to the domain VTx from the domain U with ping
> command.
> Then, the domain VTx does hang.
> And, it outputs as follows.
> The domain U and a domain 0 doesn't do hang.
>
> EAX: c03c7000 EBX: 00000286 ECX: 00000286 EDX: da676000
> ESI: 000004e2 EDI: 0000000a EBP: c03c7fb8 DS: 007b ES: 007b
> CR0: 8005003b CR2: b7ee2044 CR3: 1a6af000 CR4: 000006d0
> [<c0118f92>] __printk_ratelimit+0x8f/0x95
> [<e08a6316>] xennet_get_responses+0xca/0x31c [xen_vnif]
> [<c0103dc2>] do_IRQ+0x70/0x7a
> [<e08a6851>] netif_poll+0x1c/0x60v [xen_vnif]
> [<c0103dc2>] net_rx_action+0x35/0x7d
> [<c011c47d>] __do_softirq+0x38/0x3f
> [<c0103e94>] do_softirq+0x38/0x3f
> =======================
> [<c0103dc2>] do_IRQ+0x70/0x7a
> [<c0102c1a>] common_interrupt+0x27/0x2b
> [<c014b5d8>] kmem_cache_free+0x27/0x2b
> [<c013dac4>] free_pgtables+0x31/0x63
> [<c01421ab>] exit_mmap+0x6a/0xb6
> [<c0115f53>] mmput+0x1f/0x76
> [<c011a58d>] do_exit+0x173/0x32b
> [<c011a7f7>] sys_exit_group+0x0/0xd
> [<c01029f3>] sysenter_past_esp+0x54/0x75
> printk: 64425470 messages suppressed.
> netfront: rx->offset: 0, size: 4294967295
> printk: 64601036 messages suppressed.
> netfront: rx->offset: 0, size: 4294967295
> *** Please look at screenshots about the detail of the log. ***
>
> The test environment is as follows.
> - Architecture : x86
> - Xen change set: 11683
> - Domain 0 : kernel2.6.16.29-xen
> - Domain U : kernel2.6.16.29-xen
> - Domain VTx : kernel2.6.16
>
> Probably, a domain VTx with the VNIF does Hang when it recieves a packet
> from some domain U or from some domain VTx with the VNIF.
>
>
> Additionally, I similarly tested the VNIF in the following environments
> today(On October 3 2006).
> - Architecture : x86
> - Xen change set: 11686
> - Domain 0 : kernel2.6.16.29-xen
> - Domain U : kernel2.6.16.29-xen
> - Domain VTx : kernel2.6.16
>
> As a result, a kernel of domain VTx with the VNIF does panic when I use
> "xm network-attach domainVTx eth1" in a domain 0.
> Even if that command succeeds, it similarly does hang when it recieves a
> packet.
>
> What's happend?
> Thank you.
>
> --
> FUJITSU COMPUTER TECHNOLOGIES LIMITED
> Development Dept. 5 Division 1
> Hirofumi Tsujimura
> E-MAIL: tsujimura.hirof@xxxxxxxxxxxxxx
--
FUJITSU COMPUTER TECHNOLOGIES LIMITED
Development Dept. 5 Division 1
Hirofumi Tsujimura
E-MAIL: tsujimura.hirof@xxxxxxxxxxxxxx
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