With all those fixes backported we still got a kernel lockup:
Apr 21 11:55:25 kernel: [992864.965769] Pid: 0, comm: swapper/0 Tainted: P
C O 3.2.0-77-generic #112hf79117v20150224b1-Ubuntu
Apr 21 11:55:25 kernel: [992864.965772] Call Trace:
Apr 21 11:55:25 kernel: [992864.965773] <IRQ> [<ffffffff8106845f>]
warn_slowpath_common+0x7f/0xc0
Apr 21 11:55:25 kernel: [992864.965786] [<ffffffff8104f624>] ?
__enqueue_entity+0x74/0x80
Apr 21 11:55:25 kernel: [992864.965790] [<ffffffff81068556>]
warn_slowpath_fmt+0x46/0x50
Apr 21 11:55:25 kernel: [992864.965794] [<ffffffff81025712>] ?
x86_pmu_enable+0x1f2/0x270
Apr 21 11:55:25 kernel: [992864.965800] [<ffffffff81568e0a>]
dev_watchdog+0x25a/0x270
Apr 21 11:55:25 kernel: [992864.965805] [<ffffffff811133f0>] ?
perf_rotate_context+0x110/0x220
Apr 21 11:55:25 kernel: [992864.965809] [<ffffffff81568bb0>] ?
qdisc_reset+0x50/0x50
Apr 21 11:55:25 kernel: [992864.965813] [<ffffffff81568bb0>] ?
qdisc_reset+0x50/0x50
Apr 21 11:55:25 kernel: [992864.965819] [<ffffffff81077466>]
call_timer_fn+0x46/0x160
Apr 21 11:55:25 kernel: [992864.965823] [<ffffffff81568bb0>] ?
qdisc_reset+0x50/0x50
Apr 21 11:55:25 kernel: [992864.965827] [<ffffffff81078db2>]
run_timer_softirq+0x132/0x2a0
Apr 21 11:55:25 kernel: [992864.965833] [<ffffffff81096675>] ?
ktime_get+0x65/0xe0
Apr 21 11:55:25 kernel: [992864.965836] [<ffffffff8106fcf8>]
__do_softirq+0xa8/0x210
Apr 21 11:55:25 kernel: [992864.965841] [<ffffffff8109d714>] ?
tick_program_event+0x24/0x30
Apr 21 11:55:25 kernel: [992864.965845] [<ffffffff8166f06c>]
call_softirq+0x1c/0x30
Apr 21 11:55:25 kernel: [992864.965851] [<ffffffff810164e5>]
do_softirq+0x65/0xa0
Apr 21 11:55:25 kernel: [992864.965854] [<ffffffff810700de>]
irq_exit+0x8e/0xb0
Apr 21 11:55:25 kernel: [992864.965858] [<ffffffff8166fa1e>]
smp_apic_timer_interrupt+0x6e/0x99
Apr 21 11:55:25 kernel: [992864.965863] [<ffffffff8166d8de>]
apic_timer_interrupt+0x6e/0x80
Apr 21 11:55:25 kernel: [992864.965865] <EOI> [<ffffffff8109c184>] ?
clockevents_program_event+0x74/0x100
Apr 21 11:55:25 kernel: [992864.965873] [<ffffffff81371a5d>] ?
intel_idle+0xed/0x150
Apr 21 11:55:25 kernel: [992864.965877] [<ffffffff81371a3f>] ?
intel_idle+0xcf/0x150
Apr 21 11:55:25 kernel: [992864.965883] [<ffffffff8150e921>]
cpuidle_idle_call+0xc1/0x290
Apr 21 11:55:25 kernel: [992864.965887] [<ffffffff8101322a>]
cpu_idle+0xca/0x120
Apr 21 11:55:25 kernel: [992864.965892] [<ffffffff8162af5e>]
rest_init+0x72/0x74
Apr 21 11:55:25 kernel: [992864.965897] [<ffffffff81cfbc0b>]
start_kernel+0x3ba/0x3c7
Apr 21 11:55:25 kernel: [992864.965902] [<ffffffff81cfb388>]
x86_64_start_reservations+0x132/0x136
Apr 21 11:55:25 kernel: [992864.965907] [<ffffffff81cfb140>] ?
early_idt_handlers+0x140/0x140
Apr 21 11:55:25 kernel: [992864.965911] [<ffffffff81cfb459>]
x86_64_start_kernel+0xcd/0xdc
Apr 21 11:55:25 kernel: [992864.965914] ---[ end trace f20333a4474e470d ]---
Apr 21 11:55:25 kernel: [992864.965930] e1000e 0000:00:19.0: eth0: Reset
adapter
Apr 21 11:55:29 kernel: [992868.720990] e1000e: eth0 NIC Link is Up 1000 Mbps
Full Duplex, Flow Control: Rx/Tx
It looks like network interface was restored after some time but I asked
for a kernel dump and more information regarding the network topology.
** Tags removed: verification-needed-precise
** Tags added: cts verification-failed-precise
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https://bugs.launchpad.net/bugs/1425333
Title:
Precise kernel lockup with Intel Corporation 82579LM network
interfaces
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