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Re: [Xen-devel] Freeze on boot pv domU 2.6.31 with Xen 4.1

To: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Freeze on boot pv domU 2.6.31 with Xen 4.1
From: Eric Chanudet <eric.chanudet@xxxxxxxxxx>
Date: Mon, 24 May 2010 18:18:36 +0100
Cc: Steven Smith <Steven.Smith@xxxxxxxxxxxxx>, Jeremy Fitzhardinge <jeremy@xxxxxxxx>
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I upgraded Xen to the last revision on the repository (21446) and installed it. 2.6.31.13 kernel (branch xen/stable-2.6.31.x) do not hang at boot time anymore (I have a 2.6.31.13 kernel on both Dom0 and pv DomU).

Netchannel2 is added (and appears in guest), nevertheless, I get a triple fault from Xen's kernel when I try to start a dhcp client on the netchannel2 interface. Here is the crash report on Xen's console :

[  277.458877] device vif1.1 entered promiscuous mode
[  277.464413] eth0: port 2(vif1.1) entering forwarding state
[  279.401085] blkback: ring-ref 8, event-channel 13, protocol 1 (x86_64-abi)
[  279.401328]   alloc irq_desc for 400 on node 0
[  279.401488]   alloc kstat_irqs on node 0
[  279.975239]   alloc irq_desc for 399 on node 0
[  279.975444]   alloc kstat_irqs on node 0
[  288.147017] vif1.1: no IPv6 routers present
[  337.756744]   alloc irq_desc for 398 on node 0
[  337.756947]   alloc kstat_irqs on node 0
[  338.053346] device eth3 entered promiscuous mode
[  338.057891] eth0: port 3(eth3) entering forwarding state
[  348.866023] eth3: no IPv6 routers present
[  414.383815] BUG: unable to handle kernel NULL pointer dereference at 
0000000000000082
[  414.384232] IP: [<ffffffff8134dce1>] pull_through+0xb0/0x18f
[ 414.384479] PGD 2cccd067 PUD 2b80f067 PMD 0 [ 414.384756] Thread overran stack, or stack corrupted [ 414.384756] Oops: 0002 [#1] SMP [ 414.384756] last sysfs file: /sys/devices/virtual/net/eth0/bridge/topology_change_detected [ 414.384756] CPU 0 [ 414.384756] Modules linked in: [ 414.384756] Pid: 0, comm: swapper Not tainted 2.6.31.13 #4 [ 414.384756] RIP: e030:[<ffffffff8134dce1>] [<ffffffff8134dce1>] pull_through+0xb0/0x18f
[  414.384756] RSP: e02b:ffffc90000003810  EFLAGS: 00010282
[  414.384756] RAX: 0000000000000020 RBX: ffff88002b817000 RCX: 0000000000000020
[  414.384756] RDX: 0000000000000030 RSI: ffff88002c855862 RDI: 0000000000000082
[  414.384756] RBP: ffffc90000003830 R08: ffff88002c881cc0 R09: 0000000000000020
[  414.384756] R10: 0000000000000000 R11: 0000000000000020 R12: ffff880000000000
[  414.384756] R13: 6db6db6db6db6db7 R14: 0000000000000000 R15: ffff88002b0d0000
[  414.384756] FS:  00007f412e5b8700(0000) GS:ffffc90000000000(0000) 
knlGS:0000000000000000
[  414.384756] CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
[  414.384756] CR2: 0000000000000082 CR3: 000000002b104000 CR4: 0000000000002660
[  414.384756] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  414.384756] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  414.384756] Process swapper (pid: 0, threadinfo ffffffff817ce000, task 
ffffffff817f30f0)
[  414.384756] Stack:
[  414.384756]  0000000000000000 cccccccccccccccd ffff88002b0da028 
ffff88002b817000
[  414.384756] <0> ffffc90000003d20 ffffffff813503c2 0000000000000000 
ffff88002d061400
[  414.384756] <0> 0000000000000000 0000000100000ff4 ffffc90000003d50 
ffff88002dc22580
[  414.384756] Call Trace:
[ 414.384756] <IRQ> [ 414.384756] [<ffffffff813503c2>] handle_receiver_map_packet+0x645/0x7c7
[  414.384756]  [<ffffffff8145a613>] ? nlmsg_notify+0x4c/0x8a
[  414.384756]  [<ffffffff81449368>] ? rtnl_notify+0x2b/0x2d
[  414.384756]  [<ffffffff814cbe9f>] ? inet6_rt_notify+0x109/0x12e
[  414.384756]  [<ffffffff814cee46>] ? fib6_add+0x444/0x536
[  414.384756]  [<ffffffff81030b77>] ? xen_swiotlb_phys_to_bus+0x24/0x48
[  414.384756]  [<ffffffff81030bba>] ? xen_swiotlb_virt_to_bus+0x1f/0x23
[  414.384756]  [<ffffffff8102eff1>] ? xen_force_evtchn_callback+0xd/0xf
[  414.384756]  [<ffffffff81030bff>] ? xen_swiotlb_dma_mapping_error+0x18/0x26
[  414.384756]  [<ffffffff81031384>] ? xen_swiotlb_map_page+0x0/0x100
[  414.384756]  [<ffffffff8143bed8>] ? skb_dma_map+0xf7/0x267
[  414.384756]  [<ffffffff813194f5>] ? e1000_xmit_frame+0x66c/0x96f
[  414.384756]  [<ffffffff812548cd>] ? fast_flush_area+0xf2/0x10c
[  414.384756]  [<ffffffff8143fcda>] ? dev_hard_start_xmit+0x23d/0x2e9
[  414.384756]  [<ffffffff810d0e20>] ? mempool_free_slab+0x12/0x14
[  414.384756]  [<ffffffff8102eff1>] ? xen_force_evtchn_callback+0xd/0xf
[  414.384756]  [<ffffffff8102f722>] ? check_events+0x12/0x20
[  414.384756]  [<ffffffff8102eff1>] ? xen_force_evtchn_callback+0xd/0xf
[  414.384756]  [<ffffffff8134ecd2>] nc2_handle_packet_msg+0x100/0x392
[  414.384756]  [<ffffffff8102f70f>] ? xen_restore_fl_direct_end+0x0/0x1
[  414.384756]  [<ffffffff8102eff1>] ? xen_force_evtchn_callback+0xd/0xf
[  414.384756]  [<ffffffff8134c5e3>] process_ring+0x132/0x4bd
[  414.384756]  [<ffffffff8143f690>] net_rx_action+0xe3/0x232
[  414.384756]  [<ffffffff81071b92>] __do_softirq+0xe5/0x1bd
[  414.384756]  [<ffffffff81034f2c>] call_softirq+0x1c/0x30
[  414.384756]  [<ffffffff81036606>] do_softirq+0x62/0xc9
[  414.384756]  [<ffffffff810718a1>] irq_exit+0x3f/0x7e
[  414.384756]  [<ffffffff8124d8e4>] xen_evtchn_do_upcall+0x190/0x1ac
[  414.384756]  [<ffffffff81034f7e>] xen_do_hypervisor_callback+0x1e/0x30
[ 414.384756] <EOI> [ 414.384756] [<ffffffff810093aa>] ? hypercall_page+0x3aa/0x1000
[  414.384756]  [<ffffffff810093aa>] ? hypercall_page+0x3aa/0x1000
[  414.384756]  [<ffffffff8102f088>] ? xen_safe_halt+0x10/0x1a
[  414.384756]  [<ffffffff8102c2d0>] ? xen_idle+0x5c/0x70
[  414.384756]  [<ffffffff81033003>] ? cpu_idle+0x66/0xaa
[  414.384756]  [<ffffffff81518b4d>] ? rest_init+0x61/0x63
[  414.384756]  [<ffffffff818c9634>] ? start_kernel+0x427/0x432
[  414.384756]  [<ffffffff818c8b1f>] ? x86_64_start_reservations+0xaa/0xae
[  414.384756]  [<ffffffff818cd2a1>] ? xen_start_kernel+0x63a/0x641
[ 414.384756] Code: e0 fc 48 29 c2 44 89 d0 48 c1 fa 03 49 0f af d5 48 c1 e2 0c 4a 8d 34 22 48 8d 50 03 48 c1 e2 04 42 8b 44 02 10 48 01 c6 44 89 c8 <f3> a4 03 83 dc 00 00 00 8b 8b e0 00 00 00 39 c8 89 83 dc 00 00 [ 414.384756] RIP [<ffffffff8134dce1>] pull_through+0xb0/0x18f
[  414.384756]  RSP <ffffc90000003810>
[  414.384756] CR2: 0000000000000082
[  414.384756] ---[ end trace 15df3e21858e13fd ]---
[  414.384756] Kernel panic - not syncing: Fatal exception in interrupt
[  414.384756] Pid: 0, comm: swapper Tainted: G      D    2.6.31.13 #4
[  414.384756] Call Trace:
[  414.384756]  <IRQ>  [<ffffffff81537d1b>] panic+0xa0/0x15f
[  414.384756]  [<ffffffff8102f722>] ? check_events+0x12/0x20
[  414.384756]  [<ffffffff815300d5>] ? xen_cpu_up+0x185/0x37a
[  414.384756]  [<ffffffff8102f70f>] ? xen_restore_fl_direct_end+0x0/0x1
[  414.384756]  [<ffffffff81539f79>] ? _spin_unlock_irqrestore+0x34/0x36
[  414.384756]  [<ffffffff8106c463>] ? release_console_sem+0x1aa/0x1dc
[  414.384756]  [<ffffffff8106c68e>] ? console_unblank+0x65/0x6a
[  414.384756]  [<ffffffff8153afa9>] oops_end+0xbf/0xcf
[  414.384756]  [<ffffffff810539ce>] no_context+0x1ed/0x1fc
[  414.384756]  [<ffffffff81053b83>] __bad_area_nosemaphore+0x1a6/0x1cc
[  414.384756]  [<ffffffff8144016f>] ? dev_queue_xmit+0x2cd/0x2ff
[  414.384756]  [<ffffffff814f372b>] ? br_dev_queue_push_xmit+0x5f/0x65
[  414.384756]  [<ffffffff814f3780>] ? br_forward_finish+0x4f/0x53
[  414.384756]  [<ffffffff814f389c>] ? __br_deliver+0x52/0x56
[  414.384756]  [<ffffffff81053bb7>] bad_area_nosemaphore+0xe/0x10
[  414.384756]  [<ffffffff8153c630>] do_page_fault+0x1ca/0x307
[  414.384756]  [<ffffffff8143fcda>] ? dev_hard_start_xmit+0x23d/0x2e9
[  414.384756]  [<ffffffff8153a3e5>] page_fault+0x25/0x30
[  414.384756]  [<ffffffff8134dce1>] ? pull_through+0xb0/0x18f
[  414.384756]  [<ffffffff813503c2>] handle_receiver_map_packet+0x645/0x7c7
[  414.384756]  [<ffffffff8145a613>] ? nlmsg_notify+0x4c/0x8a
[  414.384756]  [<ffffffff81449368>] ? rtnl_notify+0x2b/0x2d
[  414.384756]  [<ffffffff814cbe9f>] ? inet6_rt_notify+0x109/0x12e
[  414.384756]  [<ffffffff814cee46>] ? fib6_add+0x444/0x536
[  414.384756]  [<ffffffff81030b77>] ? xen_swiotlb_phys_to_bus+0x24/0x48
[  414.384756]  [<ffffffff81030bba>] ? xen_swiotlb_virt_to_bus+0x1f/0x23
[  414.384756]  [<ffffffff8102eff1>] ? xen_force_evtchn_callback+0xd/0xf
[  414.384756]  [<ffffffff81030bff>] ? xen_swiotlb_dma_mapping_error+0x18/0x26
[  414.384756]  [<ffffffff81031384>] ? xen_swiotlb_map_page+0x0/0x100
[  414.384756]  [<ffffffff8143bed8>] ? skb_dma_map+0xf7/0x267
[  414.384756]  [<ffffffff813194f5>] ? e1000_xmit_frame+0x66c/0x96f
[  414.384756]  [<ffffffff812548cd>] ? fast_flush_area+0xf2/0x10c
[  414.384756]  [<ffffffff8143fcda>] ? dev_hard_start_xmit+0x23d/0x2e9
[  414.384756]  [<ffffffff810d0e20>] ? mempool_free_slab+0x12/0x14
[  414.384756]  [<ffffffff8102eff1>] ? xen_force_evtchn_callback+0xd/0xf
[  414.384756]  [<ffffffff8102f722>] ? check_events+0x12/0x20
[  414.384756]  [<ffffffff8102eff1>] ? xen_force_evtchn_callback+0xd/0xf
[  414.384756]  [<ffffffff8134ecd2>] nc2_handle_packet_msg+0x100/0x392
[  414.384756]  [<ffffffff8102f70f>] ? xen_restore_fl_direct_end+0x0/0x1
[  414.384756]  [<ffffffff8102eff1>] ? xen_force_evtchn_callback+0xd/0xf
[  414.384756]  [<ffffffff8134c5e3>] process_ring+0x132/0x4bd
[  414.384756]  [<ffffffff8143f690>] net_rx_action+0xe3/0x232
[  414.384756]  [<ffffffff81071b92>] __do_softirq+0xe5/0x1bd
[  414.384756]  [<ffffffff81034f2c>] call_softirq+0x1c/0x30
[  414.384756]  [<ffffffff81036606>] do_softirq+0x62/0xc9
[  414.384756]  [<ffffffff810718a1>] irq_exit+0x3f/0x7e
[  414.384756]  [<ffffffff8124d8e4>] xen_evtchn_do_upcall+0x190/0x1ac
[  414.384756]  [<ffffffff81034f7e>] xen_do_hypervisor_callback+0x1e/0x30
[  414.384756]  <EOI>  [<ffffffff810093aa>] ? hypercall_page+0x3aa/0x1000
[  414.384756]  [<ffffffff810093aa>] ? hypercall_page+0x3aa/0x1000
[  414.384756]  [<ffffffff8102f088>] ? xen_safe_halt+0x10/0x1a
[  414.384756]  [<ffffffff8102c2d0>] ? xen_idle+0x5c/0x70
[  414.384756]  [<ffffffff81033003>] ? cpu_idle+0x66/0xaa
[  414.384756]  [<ffffffff81518b4d>] ? rest_init+0x61/0x63
[  414.384756]  [<ffffffff818c9634>] ? start_kernel+0x427/0x432
[  414.384756]  [<ffffffff818c8b1f>] ? x86_64_start_reservations+0xaa/0xae
[  414.384756]  [<ffffffff818cd2a1>] ? xen_start_kernel+0x63a/0x641

--
Eric Chanudet

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