db> show active trace Tracing command clock pid 2 tid 100029 td 0xffffffc0adc0a140 (CPU 0) ipi_stop() at ipi_stop+0x2c intr_ipi_dispatch() at intr_ipi_dispatch+0x50 sbi_ipi_intr() at sbi_ipi_intr+0x70 intr_event_handle() at intr_event_handle+0x88 intr_isrc_dispatch() at intr_isrc_dispatch+0x2c intc_intr() at intc_intr+0x42 intr_irq_handler() at intr_irq_handler+0x54 do_trap_supervisor() at do_trap_supervisor+0x78 cpu_exception_handler_supervisor() at cpu_exception_handler_supervisor+0x74 --- interrupt 1 spinlock_exit() at spinlock_exit+0x3c mi_switch() at mi_switch+0x17a softclock_thread() at softclock_thread+0x76 fork_exit() at fork_exit+0x68 fork_trampoline() at fork_trampoline+0xa Tracing command pagedaemon pid 8 tid 100115 td 0xffffffc0adc2bcc0 (CPU 6) ipi_stop() at ipi_stop+0x2c intr_ipi_dispatch() at intr_ipi_dispatch+0x50 sbi_ipi_intr() at sbi_ipi_intr+0x70 intr_event_handle() at intr_event_handle+0x88 intr_isrc_dispatch() at intr_isrc_dispatch+0x2c intc_intr() at intc_intr+0x42 intr_irq_handler() at intr_irq_handler+0x54 do_trap_supervisor() at do_trap_supervisor+0x78 cpu_exception_handler_supervisor() at cpu_exception_handler_supervisor+0x74 --- interrupt 1 __rw_wlock_hard() at __rw_wlock_hard+0x442 _rw_wlock_cookie() at _rw_wlock_cookie+0x94 pmap_ts_referenced() at pmap_ts_referenced+0xa4 $x() at $x+0x62c vm_pageout() at vm_pageout+0x1c2 fork_exit() at fork_exit+0x68 fork_trampoline() at fork_trampoline+0xa Tracing command sh pid 76959 tid 120011 td 0xffffffc103152140 (CPU 5) ipi_stop() at ipi_stop+0x2c intr_ipi_dispatch() at intr_ipi_dispatch+0x50 sbi_ipi_intr() at sbi_ipi_intr+0x70 intr_event_handle() at intr_event_handle+0x88 intr_isrc_dispatch() at intr_isrc_dispatch+0x2c intc_intr() at intc_intr+0x42 intr_irq_handler() at intr_irq_handler+0x54 do_trap_supervisor() at do_trap_supervisor+0x78 cpu_exception_handler_supervisor() at cpu_exception_handler_supervisor+0x74 --- interrupt 1 sbi_remote_fence_i() at sbi_remote_fence_i+0x22 pmap_enter_quick() at pmap_enter_quick+0x6e vm_fault_prefault() at vm_fault_prefault+0x180 vm_fault() at vm_fault+0x164c vm_fault_trap() at vm_fault_trap+0x4a page_fault_handler() at page_fault_handler+0x1c4 do_trap_user() at do_trap_user+0xf0 cpu_exception_handler_user() at cpu_exception_handler_user+0x72 --- exception 12, tval = 0x12a763f87e Tracing command sh pid 76969 tid 120402 td 0xffffffc1030735c0 (CPU 4) ipi_stop() at ipi_stop+0x2c intr_ipi_dispatch() at intr_ipi_dispatch+0x50 sbi_ipi_intr() at sbi_ipi_intr+0x70 intr_event_handle() at intr_event_handle+0x88 intr_isrc_dispatch() at intr_isrc_dispatch+0x2c intc_intr() at intc_intr+0x42 intr_irq_handler() at intr_irq_handler+0x54 do_trap_supervisor() at do_trap_supervisor+0x78 cpu_exception_handler_supervisor() at cpu_exception_handler_supervisor+0x74 --- interrupt 1 sbi_remote_fence_i() at sbi_remote_fence_i+0x22 pmap_enter_quick() at pmap_enter_quick+0x6e vm_fault_prefault() at vm_fault_prefault+0x180 vm_fault() at vm_fault+0x164c vm_fault_trap() at vm_fault_trap+0x4a page_fault_handler() at page_fault_handler+0x1c4 do_trap_user() at do_trap_user+0xf0 cpu_exception_handler_user() at cpu_exception_handler_user+0x72 --- exception 12, tval = 0x8337c0c0 Tracing command sh pid 76971 tid 120096 td 0xffffffc1030c75c0 (CPU 7) ipi_stop() at ipi_stop+0x2c intr_ipi_dispatch() at intr_ipi_dispatch+0x50 sbi_ipi_intr() at sbi_ipi_intr+0x70 intr_event_handle() at intr_event_handle+0x88 intr_isrc_dispatch() at intr_isrc_dispatch+0x2c intc_intr() at intc_intr+0x42 intr_irq_handler() at intr_irq_handler+0x54 do_trap_supervisor() at do_trap_supervisor+0x78 cpu_exception_handler_supervisor() at cpu_exception_handler_supervisor+0x74 --- interrupt 1 sbi_remote_fence_i() at sbi_remote_fence_i+0x22 pmap_enter_object() at pmap_enter_object+0xda vm_map_pmap_enter() at vm_map_pmap_enter+0x280 vm_map_insert1() at vm_map_insert1+0x438 vm_map_fixed() at vm_map_fixed+0x112 vm_mmap_object() at vm_mmap_object+0x130 vn_mmap() at vn_mmap+0xec kern_mmap() at kern_mmap+0x46e sys_mmap() at sys_mmap+0x38 do_trap_user() at do_trap_user+0x1e4 cpu_exception_handler_user() at cpu_exception_handler_user+0x72 --- syscall (477, FreeBSD ELF64, mmap) Tracing command sh pid 76972 tid 120164 td 0xffffffc1030bfcc0 (CPU 1) ipi_stop() at ipi_stop+0x2c intr_ipi_dispatch() at intr_ipi_dispatch+0x50 sbi_ipi_intr() at sbi_ipi_intr+0x70 intr_event_handle() at intr_event_handle+0x88 intr_isrc_dispatch() at intr_isrc_dispatch+0x2c intc_intr() at intc_intr+0x42 intr_irq_handler() at intr_irq_handler+0x54 do_trap_supervisor() at do_trap_supervisor+0x78 cpu_exception_handler_supervisor() at cpu_exception_handler_supervisor+0x74 --- interrupt 1 sbi_remote_fence_i() at sbi_remote_fence_i+0x22 pmap_enter_quick() at pmap_enter_quick+0x6e vm_fault_prefault() at vm_fault_prefault+0x180 vm_fault() at vm_fault+0x164c vm_fault_trap() at vm_fault_trap+0x4a page_fault_handler() at page_fault_handler+0x1c4 do_trap_user() at do_trap_user+0xf0 cpu_exception_handler_user() at cpu_exception_handler_user+0x72 --- exception 12, tval = 0x1a0c22baf0 Tracing command sh pid 76973 tid 100429 td 0xffffffc1030c9840 (CPU 3) kdb_alt_break_internal() at kdb_alt_break_internal+0x15c kdb_alt_break() at kdb_alt_break+0xe uart_intr_rxready() at uart_intr_rxready+0x7e uart_intr() at uart_intr+0x104 intr_event_handle() at intr_event_handle+0x88 intr_isrc_dispatch() at intr_isrc_dispatch+0x2c plic_intr() at plic_intr+0x80 intr_event_handle() at intr_event_handle+0x88 intr_isrc_dispatch() at intr_isrc_dispatch+0x2c intc_intr() at intc_intr+0x42 intr_irq_handler() at intr_irq_handler+0x54 do_trap_supervisor() at do_trap_supervisor+0x78 cpu_exception_handler_supervisor() at cpu_exception_handler_supervisor+0x74 --- interrupt 9 __rw_wlock_hard() at __rw_wlock_hard+0x446 _rw_wlock_cookie() at _rw_wlock_cookie+0x94 pmap_enter() at pmap_enter+0x614 vm_fault() at vm_fault+0x133c vm_fault_trap() at vm_fault_trap+0x4a page_fault_handler() at page_fault_handler+0x1c4 do_trap_user() at do_trap_user+0xf0 cpu_exception_handler_user() at cpu_exception_handler_user+0x72 --- exception 15, tval = 0x80a34a28 Tracing command cc pid 76974 tid 118022 td 0xffffffc1030d7cc0 (CPU 2) ipi_stop() at ipi_stop+0x2c intr_ipi_dispatch() at intr_ipi_dispatch+0x50 sbi_ipi_intr() at sbi_ipi_intr+0x70 intr_event_handle() at intr_event_handle+0x88 intr_isrc_dispatch() at intr_isrc_dispatch+0x2c intc_intr() at intc_intr+0x42 intr_irq_handler() at intr_irq_handler+0x54 do_trap_supervisor() at do_trap_supervisor+0x78 cpu_exception_handler_supervisor() at cpu_exception_handler_supervisor+0x74 --- interrupt 1 sbi_remote_fence_i() at sbi_remote_fence_i+0x22 pmap_enter_object() at pmap_enter_object+0xda vm_map_pmap_enter() at vm_map_pmap_enter+0x280 vm_map_insert1() at vm_map_insert1+0x438 vm_map_fixed() at vm_map_fixed+0x112 elf64_map_insert() at elf64_map_insert+0x16e elf64_load_sections() at elf64_load_sections+0x1ae exec_elf64_imgact() at exec_elf64_imgact+0x75c $x() at $x+0x47c sys_execve() at sys_execve+0x52 do_trap_user() at do_trap_user+0x1e4 cpu_exception_handler_user() at cpu_exception_handler_user+0x72 --- syscall (59, FreeBSD ELF64, execve) db> cont ^BFeb 18 23:23:53 freebsd syslogd: exiting on signal 15 KDB: enter: Break to debugger timeout stopping cpus [ thread pid 76965 tid 119128 ] Stopped at kdb_alt_break_internal+0x15e: sd zero,-1164(s1) db>