[ 8098.085662] BAD LUCK: lost 42 message(s) from NMI context!
[ 8098.085663] ------------[ cut here ]------------
[ 8098.085664] WARNING: CPU: 0 PID: 21338 at arch/x86/mm/fault.c:435 vmalloc_fault+0x58/0x1f0
[ 8098.085668] CPU: 0 PID: 21338 Comm: perf_fuzzer Not tainted 4.8.0+ #37
[ 8098.085668] Hardware name: Hewlett-Packard HP Compaq Pro 6305 SFF/1850, BIOS K06 v02.57 08/16/2013
[ 8098.085669] 0000000000000000^Ac ffffffff81263c2f^Ac 0000000000000000^Ac 0000000000000000^Ac
[ 8098.085669] ffffffff810499c4^Ac ffffc90008500000^Ac ffff88022ec05a48^Ac ffffc90008500000^Ac
[ 8098.085670] ffff88022ec05ef8^Ac ffff8802265d2080^Ac 0000000000000001^Ac ffffffff8103b4de^Ac
[ 8098.085670] Call Trace:
[ 8098.085670] [] ? dump_stack+0x46/0x59
[ 8098.085670] [] ? __warn+0xd5/0xee
[ 8098.085671] [] ? vmalloc_fault+0x58/0x1f0
[ 8098.085671] [] ? __do_page_fault+0x6d/0x48e
[ 8098.085671] [] ? perf_log_throttle+0xa4/0xf4
[ 8098.085672] [] ? trace_page_fault+0x22/0x30
[ 8098.085672] [] ? __unwind_start+0x28/0x42
[ 8098.085672] [] ? perf_callchain_kernel+0x75/0xac
[ 8098.085672] [] ? get_perf_callchain+0x13a/0x1f0
[ 8098.085673] [] ? perf_callchain+0x6a/0x6c
[ 8098.085673] [] ? perf_prepare_sample+0x71/0x2eb
[ 8098.085673] [] ? perf_event_output_forward+0x1a/0x54
[ 8098.085674] [] ? __default_send_IPI_shortcut+0x10/0x2d
[ 8098.085674] [] ? __perf_event_overflow+0xfb/0x167
[ 8098.085674] [] ? x86_pmu_handle_irq+0x113/0x150
[ 8098.085675] [] ? native_read_msr+0x6/0x34
[ 8098.085675] [] ? perf_event_nmi_handler+0x22/0x39
[ 8098.085675] [] ? perf_ibs_nmi_handler+0x4a/0x51
[ 8098.085676] [] ? perf_event_nmi_handler+0x22/0x39
[ 8098.085676] [] ? nmi_handle+0x4d/0xf0
[ 8098.085676] [] ? perf_ibs_handle_irq+0x3d1/0x3d1
[ 8098.085676] [] ? default_do_nmi+0x3c/0xd5
[ 8098.085677] [] ? do_nmi+0x92/0x102
[ 8098.085677] [] ? end_repeat_nmi+0x1a/0x1e
[ 8098.085677] [] ? entry_SYSCALL_64_after_swapgs+0x12/0x4a
[ 8098.085678] [] ? entry_SYSCALL_64_after_swapgs+0x12/0x4a
[ 8098.085678] [] ? entry_SYSCALL_64_after_swapgs+0x12/0x4a
[ 8098.085678] ^A4---[ end trace 632723104d47d31a ]---
[ 8098.085679] BUG: stack guard page was hit at ffffc90008500000 (stack is ffffc900084fc000..ffffc900084fffff)
[ 8098.085679] kernel stack overflow (page fault): 0000 [#1] SMP
[ 8098.085683] CPU: 0 PID: 21338 Comm: perf_fuzzer Tainted: G W 4.8.0+ #37
[ 8098.085683] Hardware name: Hewlett-Packard HP Compaq Pro 6305 SFF/1850, BIOS K06 v02.57 08/16/2013
[ 8098.085684] task: ffff8802265d2080 task.stack: ffffc900084fc000
[ 8098.085684] RIP: 0010:[] ^Ac [] __unwind_start+0x28/0x42
[ 8098.085684] RSP: 0018:ffff88022ec05af0 EFLAGS: 00010006
[ 8098.085685] RAX: 00000000ffffffea RBX: ffff88022ec05b08 RCX: ffffc90008500000
[ 8098.085685] RDX: ffff88022ec00000 RSI: 0000000000001000 RDI: 000000000000c4d0
[ 8098.085685] RBP: ffffc90008500000 R08: ffff88022ec08000 R09: 0000000000000000
[ 8098.085686] R10: 0000000000000002 R11: 0000000000000206 R12: ffff88022ec05b70
[ 8098.085686] R13: ffff88022ec05ef8 R14: 0000000000000000 R15: 0000000000000001
[ 8098.085687] FS: 00007f06e791c700(0000) GS:ffff88022ec00000(0000) knlGS:0000000000000000
[ 8098.085687] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8098.085687] CR2: ffffc90008500000 CR3: 0000000223c25000 CR4: 00000000000407f0
[ 8098.085688] DR0: 0000000000000000 DR1: 0000000000005fc8 DR2: 0000000000005fc8
[ 8098.085688] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[ 8098.085688] Stack:
[ 8098.085688] ffff88022ec05ef8^Ac ffff88022ec05b58^Ac ffffffff81004721^Ac 0000000000000000^Ac
[ 8098.085689] 0000000000000000^Ac 0000000000000000^Ac 0000000000000000^Ac 0000000000000000^Ac
[ 8098.085689] ffff8802265d2080^Ac 0000000000000000^Ac ffffc90008500000^Ac 0000000000012fb0^Ac
[ 8098.085689] Call Trace:
[ 8098.085690] ^Ad [] ? perf_callchain_kernel+0x75/0xac
[ 8098.085690] [] ? vsnprintf+0x380/0x3b4
[ 8098.085690] [] ? sprintf+0x42/0x4a
[ 8098.085691] [] ? __sprint_symbol+0x9d/0xd1
[ 8098.085691] [] ? symbol_string+0x51/0x5d
[ 8098.085691] [] ? __sprint_symbol+0x9d/0xd1
[ 8098.085692] [] ? symbol_string+0x51/0x5d
[ 8098.085692] [] ? pointer+0x85/0x379
[ 8098.085692] [] ? vsnprintf+0x80/0x3b4
[ 8098.085692] [] ? irq_work_queue+0xa/0x66
[ 8098.085693] [] ? vprintk_nmi+0x88/0x97
[ 8098.085693] [] ? vprintk_nmi+0x88/0x97
[ 8098.085693] [] ? printk+0x43/0x4b
[ 8098.085694] [] ? __module_text_address+0x9/0x4f
[ 8098.085694] [] ? is_module_text_address+0x5/0xc
[ 8098.085694] [] ? show_trace_log_lvl+0x108/0x195
[ 8098.085694] [] ? no_context+0x102/0x36c
[ 8098.085695] [] ? no_context+0x102/0x36c
[ 8098.085695] [] ? show_stack_log_lvl+0x15b/0x172
[ 8098.085695] [] ? show_regs+0x64/0x136
[ 8098.085696] [] ? __die+0x8c/0xc4
[ 8098.085696] [] ? die+0x3d/0x56
[ 8098.085696] [] ? handle_stack_overflow+0x47/0x51
[ 8098.085697] [] ? no_context+0x102/0x36c
[ 8098.085697] ^AdCode: ^A1BUG: unable to handle kernel ^AcNULL pointer dereference^Ac at 0000000000000008
[ 8098.085697] IP:^Ac [<0000000000000008>] 0x8
[ 8098.085698] PGD 2231d5067 PUD 225162067 PMD 0
[ 8098.085698] Oops: 0010 [#2] SMP
[ 8098.085702]
[ 8098.957250] ---[ end trace 632723104d47d31b ]---
[ 8098.957250] Kernel panic - not syncing: Fatal exception in interrupt
[ 8098.957301] Kernel Offset: disabled
[ 8098.973814] ---[ end Kernel panic - not syncing: Fatal exception in interrupt
[ 8098.981719] ------------[ cut here ]------------
[ 8098.981720] WARNING: CPU: 0 PID: 21338 at arch/x86/kernel/smp.c:127 update_process_times+0x3b/0x45