Public bug reported:
I receive the following stack trace in my dmesg output and I lose
connection to my server when moving a large amount of data on my Ubuntu
12.04 lts server that is on Hyper-V. This happens when copying data from
my server over scp to another server or even tarring up a local
directory on the server. If I throttle the backup for example with the
pv command to 50mbps I dont have any problems. I monitor my server with
Nagios and it always says it went offline when moving large amounts of
data. I am not sure what else to go on.
Linux http5.server 3.2.0-33-generic #52-Ubuntu SMP Thu Oct 18 16:29:15
UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
[32607.861148] [ cut here ]
[32607.861435] WARNING: at /build/buildd/linux-3.2.0/kernel/softirq.c:159
local_bh_enable+0x7a/0xa0()
[32607.861440] Hardware name: Virtual Machine
[32607.861442] Modules linked in: xt_multiport xt_tcpudp nf_conntrack_ipv4
nf_defrag_ipv4 xt_state nf_conntrack iptable_filter ip_tables x_tables vesafb
joydev psmouse hid_hyperv hid serio_raw i2c_piix4 lp mac_hid parport hv_netvsc
hv_utils hv_storvsc floppy hv_vmbus
[32607.861478] Pid: 0, comm: swapper/0 Not tainted 3.2.0-33-generic #52-Ubuntu
[32607.861481] Call Trace:
[32607.861484] IRQ [81066f4f] warn_slowpath_common+0x7f/0xc0
[32607.861495] [81066faa] warn_slowpath_null+0x1a/0x20
[32607.861500] [8106dd7a] local_bh_enable+0x7a/0xa0
[32607.861508] [a002fafe] netvsc_linkstatus_callback+0xbe/0x160
[hv_netvsc]
[32607.861514] [a003104f] rndis_filter_receive+0xff/0x180 [hv_netvsc]
[32607.861521] [a003033f] netvsc_receive+0x23f/0x2d0 [hv_netvsc]
[32607.861527] [a003052b] netvsc_channel_cb+0x15b/0x190 [hv_netvsc]
[32607.861535] [a0001649] vmbus_on_event+0xa9/0x110 [hv_vmbus]
[32607.861541] [8106e0e8] tasklet_action+0x78/0x140
[32607.861547] [8106e728] __do_softirq+0xa8/0x210
[32607.861554] [81060d2a] ? scheduler_tick+0x13a/0x2f0
[32607.861562] [8166586c] call_softirq+0x1c/0x30
[32607.861568] [81015305] do_softirq+0x65/0xa0
[32607.861573] [8106eb0e] irq_exit+0x8e/0xb0
[32607.861579] [8166620e] smp_apic_timer_interrupt+0x6e/0x99
[32607.861583] [816640de] apic_timer_interrupt+0x6e/0x80
[32607.861586] EOI [81090d05] ? sched_clock_local+0x25/0x90
[32607.861597] [8103cf8b] ? native_safe_halt+0xb/0x10
[32607.861603] [8101b983] default_idle+0x53/0x1d0
[32607.861608] [81012236] cpu_idle+0xd6/0x120
[32607.861619] [8162166e] rest_init+0x72/0x74
[32607.861626] [81cfbc03] start_kernel+0x3b0/0x3bd
[32607.861632] [81cfb388] x86_64_start_reservations+0x132/0x136
[32607.861637] [81cfb140] ? early_idt_handlers+0x140/0x140
[32607.861642] [81cfb459] x86_64_start_kernel+0xcd/0xdc
[32607.861645] ---[ end trace ff5ae60d77ec44cd ]---
[32607.865515] hv_vmbus: child device
\xffe0yV\xffdd\x02\xff88\x\x9 unregistered
[32607.865758] hv_vmbus: child device unregistered
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1081748
Title:
moving large amounts of data with hyper-v server causes lockup
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