[ 2696.228000] BUG: soft lockup - CPU#0 stuck for 23s! [perf_fuzzer:10256]
[ 2696.228000] Modules linked in: cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_conservative f71882fg ohci_pci acpi_cpufreq coretemp evdev video mcs7830 usbnet wmi psmouse processor button thermal_sys serio_raw pcspkr ohci_hcd i2c_nforce2 sg ehci_pci ehci_hcd sd_mod usbcore usb_common
[ 2696.228000] CPU: 0 PID: 10256 Comm: perf_fuzzer Not tainted 3.14.0-rc6 #36
[ 2696.228000] Hardware name: AOpen DE7000/nMCP7ALPx-DE R1.06 Oct.19.2012, BIOS 080015 10/19/2012
[ 2696.228000] task: ffff88011a6a17e0 ti: ffff8800cbab6000 task.ti: ffff8800cbab6000
[ 2696.228000] RIP: 0010:[] [] __perf_sw_event+0x117/0x192
[ 2696.228000] RSP: 0000:ffff8800cbab7c88 EFLAGS: 00000246
[ 2696.228000] RAX: ffff88011a7b5cba RBX: 0000000000000000 RCX: ffff88011a9c4000
[ 2696.228000] RDX: ffff88011a7b5c00 RSI: 0400000000000000 RDI: 4000000000000000
[ 2696.228000] RBP: ffff8800cbab7d48 R08: 0010000000000000 R09: ffff88011fc12ac0
[ 2696.228000] R10: 0000000000000000 R11: ffff880119dfcb60 R12: 0000000000000000
[ 2696.228000] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 2696.228000] FS: 0000000000bd5840(0063) GS:ffff88011fc00000(0000) knlGS:0000000000000000
[ 2696.228000] CS: 0010 DS: 002b ES: 002b CR0: 000000008005003b
[ 2696.228000] CR2: 0000000000bd5ac8 CR3: 00000000ca4c8000 CR4: 00000000000407f0
[ 2696.228000] DR0: 0000000000bd7000 DR1: 0000000000bd7000 DR2: 0000000000000000
[ 2696.228000] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[ 2696.228000] Stack:
[ 2696.228000] 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 2696.228000] 0000000000bd5ac8 0000000000000000 0000000000000000 0000000000000000
[ 2696.228000] 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 2696.228000] Call Trace:
[ 2696.228000] [] __do_page_fault+0x1b1/0x3ed
[ 2696.228000] [] ? native_sched_clock+0x21/0x3e
[ 2696.228000] [] ? sched_clock_local+0x1c/0x82
[ 2696.228000] [] ? sched_clock_cpu+0x8e/0xaa
[ 2696.228000] [] ? local_clock+0x1b/0x24
[ 2696.228000] [] ? ctx_sched_in+0x35/0x185
[ 2696.228000] [] do_page_fault+0xc/0xe
[ 2696.228000] [] page_fault+0x22/0x30
[ 2696.228000] [] ? __put_user_4+0x20/0x30
[ 2696.228000] [] ? schedule_tail+0x5c/0x60
[ 2696.228000] [] ret_from_fork+0xf/0xb0
[ 2696.228000] Code: 00 48 8d 50 c0 48 85 c0 4c 0f 45 ea eb 50 41 83 bd c0 00 00 00 01 75 39 4d 39 bd c8 00 00 00 75 30 41 f6 85 90 01 00 00 01 75 26 <48> 85 db 74 4d 41 8a 85 e8 00 00 00 a8 10 74 09 f6 83 88 00 00