PID: 2510   TASK: ffff8801372916e0  CPU: 0   COMMAND: "udevd"
 #0 [ffff880001e07e60] crash_nmi_callback at ffffffff810292b6
 #1 [ffff880001e07e70] notifier_call_chain at ffffffff8158e7b6
 #2 [ffff880001e07eb0] atomic_notifier_call_chain at ffffffff8158e81a
 #3 [ffff880001e07ec0] notify_die at ffffffff8158e84e
 #4 [ffff880001e07ef0] default_do_nmi at ffffffff8158b988
 #5 [ffff880001e07f30] do_nmi at ffffffff8158bbf0
 #6 [ffff880001e07f50] nmi at ffffffff8158b340
    [exception RIP: __slab_free+39]
    RIP: ffffffff811424b7  RSP: ffff880100179b68  RFLAGS: 00000082
    RAX: ffff880001e186f8  RBX: ffffea0003803c98  RCX: ffffffff81129af8
    RDX: ffff880100115ab0  RSI: ffffea0003803c98  RDI: ffff88013fc03240
    RBP: ffff880100179b98   R8: dead000000200200   R9: dead000000100100
    R10: 000000006efef848  R11: 00000000a48661fb  R12: ffff88013fc03240
    R13: ffff880100115ab0  R14: 0000000000000000  R15: ffff8801001844c0
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
--- <NMI exception stack> ---
 #7 [ffff880100179b68] __slab_free at ffffffff811424b7
 #8 [ffff880100179ba0] kmem_cache_free at ffffffff81142680
 #9 [ffff880100179bd0] anon_vma_chain_free at ffffffff81129af8
#10 [ffff880100179be0] unlink_anon_vmas at ffffffff81129b8b
#11 [ffff880100179c30] free_pgtables at ffffffff8111ea91
#12 [ffff880100179c80] exit_mmap at ffffffff81123e41
#13 [ffff880100179cc0] mmput at ffffffff8105e67d
#14 [ffff880100179ce0] exec_mmap at ffffffff811591e6
#15 [ffff880100179d30] flush_old_exec at ffffffff81159309
#16 [ffff880100179d60] load_elf_binary at ffffffff8119dfd2
#17 [ffff880100179e50] search_binary_handler at ffffffff8115a634
#18 [ffff880100179eb0] do_execve at ffffffff8115abc1
#19 [ffff880100179f20] sys_execve at ffffffff810127ca
#20 [ffff880100179f50] stub_execve at ffffffff8100a54a
    RIP: 00007f699963d5b7  RSP: 00007fffb93773e8  RFLAGS: 00000217
    RAX: 000000000000003b  RBX: 00007f699bb83010  RCX: ffffffffffffffff
    RDX: 00007f699bc07920  RSI: 00007fffb9377440  RDI: 00007fffb9378900
    RBP: 0000000000000004   R8: 0000000000000281   R9: 0000000000000281
    R10: 0000000000000008  R11: 0000000000000217  R12: 00007f6999f720b0
    R13: 00007f6999f72001  R14: 0000000000000000  R15: 00007fffb9379160
    ORIG_RAX: 000000000000003b  CS: 0033  SS: 002b

PID: 1773   TASK: ffff88011a4496e0  CPU: 1   COMMAND: "xfce4-power-man"
 #0 [ffff880001f03d30] usb_hcd_giveback_urb at ffffffff81406234
 #1 [ffff880001f03d60] uhci_giveback_urb at ffffffff814279c5
 #2 [ffff880001f03dc0] uhci_scan_qh at ffffffff81427e97
 #3 [ffff880001f03e10] uhci_scan_schedule at ffffffff814282bd
 #4 [ffff880001f03e70] uhci_irq at ffffffff8142a571
 #5 [ffff880001f03eb0] usb_hcd_irq at ffffffff81405880
 #6 [ffff880001f03ed0] handle_IRQ_event at ffffffff810c9d10
 #7 [ffff880001f03f20] handle_fasteoi_irq at ffffffff810cc5c9
 #8 [ffff880001f03f60] handle_irq at ffffffff8100cb12
 #9 [ffff880001f03f80] do_IRQ at ffffffff815921ec
--- <IRQ stack> ---
#10 [ffff88011a78df58] ret_from_intr at ffffffff8158add3
    RIP: 00007fddc66d8510  RSP: 00007fff2980c9d8  RFLAGS: 00000202
    RAX: 00007fddc7595c50  RBX: 0000000001fa0250  RCX: 00007fddc7caa640
    RDX: 0000000001fa07b0  RSI: 0000000000000001  RDI: 0000000001fa08c0
    RBP: ffffffff8158adce   R8: 0000000000000020   R9: 0000000000000000
    R10: 0000000000000001  R11: 0000000000000001  R12: 0000000000000006
    R13: 00000000006238c0  R14: 00007fddc6e86190  R15: 0000000001f583a0
    ORIG_RAX: ffffffffffffff6e  CS: 0033  SS: 002b