https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=289634
--- Comment #3 from Cy Schubert <[email protected]> --- One of my machines managed to capture a kernel panic from a poweroff(8). __curthread () at /opt/src/git-src/sys/amd64/include/pcpu_aux.h:57 57 __asm("movq %%gs:%c1,%0" : "=r" (td) (kgdb) #0 __curthread () at /opt/src/git-src/sys/amd64/include/pcpu_aux.h:57 td = <optimized out> #1 doadump (textdump=textdump@entry=1) at /opt/src/git-src/sys/kern/kern_shutdown.c:399 error = 0 coredump = <optimized out> #2 0xffffffff8070d320 in kern_reboot (howto=260) at /opt/src/git-src/sys/kern/kern_shutdown.c:519 once = 1 __pc = 0x0 #3 0xffffffff8070d857 in vpanic (fmt=0xffffffff80b8e00c "%s", ap=ap@entry=0xfffffe008a636960) at /opt/src/git-src/sys/kern/kern_shutdown.c:974 buf = "page fault", '\000' <repeats 245 times> __pc = 0x0 __pc = 0x0 __pc = 0x0 other_cpus = {__bits = {14, 0 <repeats 15 times>}} td = 0xfffff80006607000 bootopt = <unavailable> newpanic = <optimized out> #4 0xffffffff8070d683 in panic (fmt=<unavailable>) at /opt/src/git-src/sys/kern/kern_shutdown.c:887 ap = {{gp_offset = 16, fp_offset = 48, overflow_arg_area = 0xfffffe008a636990, reg_save_area = 0xfffffe008a636930}} #5 0xffffffff80aeb4bc in trap_fatal (frame=<optimized out>, eva=<optimized out>) at /opt/src/git-src/sys/amd64/amd64/trap.c:969 type = <optimized out> handled = <optimized out> #6 0xffffffff80aeb4bc in trap_pfault (frame=0xfffffe008a636a00, usermode=false, signo=<optimized out>, ucode=<optimized out>) __pc = 0x0 __pc = 0x0 __pc = 0x0 td = <optimized out> p = <optimized out> eva = 136 map = <optimized out> ftype = <optimized out> rv = <optimized out> #7 <signal handler called> No locals. #8 device_get_softc (dev=dev@entry=0x0) at /opt/src/git-src/sys/kern/subr_bus.c:2141 No locals. #9 0xffffffff80429385 in acpi_wake_sleep_prep (handle=0xfffff80007706e00, stype=POWER_STYPE_POWEROFF) at /opt/src/git-src/sys/dev/acpica/acpi.c:3689 prw = {gpe_handle = 0x0, gpe_bit = 27, lowest_wake = 3, power_res = {{ Type = 0, Integer = {Type = 0, Value = 0}, String = {Type = 0, Length = 0, Pointer = 0x0}, Buffer = {Type = 0, Length = 0, Pointer = 0x0}, Package = {Type = 0, Count = 0, Elements = 0x0}, Reference = {Type = 0, ActualType = 0, Handle = 0x0}, Processor = {Type = 0, ProcId = 0, PblkAddress = 0, PblkLength = 87678488}, PowerResource = { Type = 0, SystemLevel = 0, ResourceOrder = 0}}, {Type = 369, Integer = {Type = 369, Value = 8}, String = {Type = 369, Length = 0, Pointer = 0x8 <error: Cannot access memory at address 0x8>}, Buffer = {Type = 369, Length = 0, Pointer = 0x8 <error: Cannot access memory at address 0x8>}, Buffer = {Type = 369, Length = 0, Pointer = 0x8 <error: Cannot access memory at address 0x8>}, Package = {Type = 369, Count = 0, Elements = 0x8}, Reference = { Type = 369, ActualType = 0, Handle = 0x8}, Processor = { Type = 369, ProcId = 0, PblkAddress = 8, PblkLength = 0}, PowerResource = {Type = 369, SystemLevel = 0, ResourceOrder = 8}}, {Type = 2159484735, Integer = { Type = 2159484735, Value = 0}, String = {Type = 2159484735, Length = 4294967295, Pointer = 0x0}, Buffer = { Type = 2159484735, Length = 4294967295, Pointer = 0x0}, Package = {Type = 2159484735, Count = 4294967295, Elements = 0x0}, Reference = {Type = 2159484735, ActualType = 4294967295, Handle = 0x0}, Processor = { Type = 2159484735, ProcId = 4294967295, PblkAddress = 0, PblkLength = 87678488}, PowerResource = {Type = 2159484735, SystemLevel = 4294967295, ResourceOrder = 0}}, {Type = 458, Integer = {Type = 458, Value = 8}, String = {Type = 458, Length = 0, Pointer = 0x8 <error: Cannot access memory at address 0x8>}, Buffer = {Type = 458, Length = 0, Pointer = 0x8 <error: Cannot access memory at address 0x8>}, Package = {Type = 458, Count = 0, Elements = 0x8}, Reference = { Type = 458, ActualType = 0, Handle = 0x8}, Processor = { Type = 458, ProcId = 0, PblkAddress = 8, PblkLength = 0}, PowerResource = {Type = 458, SystemLevel = 0, ResourceOrder = 8}}, {Type = 2159484735, Integer = { Type = 2159484735, Value = 18446741877008067488}, String = { Type = 2159484735, Length = 4294967295, Pointer = 0xfffffe008a636ba0 "\300kc\212"}, Buffer = { Type = 2159484735, Length = 4294967295, Pointer = 0xfffffe008a636ba0 "\300kc\212"}, Package = { Type = 2159484735, Count = 4294967295, Elements = 0xfffffe008a636ba0}, Reference = { Type = 2159484735, ActualType = 4294967295, Handle = 0xfffffe008a636ba0}, Processor = {Type = 2159484735, ProcId = 4294967295, PblkAddress = 18446741877008067488, PblkLength = 2154715683}, PowerResource = {Type = 2159484735, SystemLevel = 4294967295, ResourceOrder = 2321771424}}, { Type = 87678488, Integer = {Type = 87678488, Value = 18446735277723512832}, String = {Type = 87678488, Length = 4294965248, Pointer = 0xfffff80006607000 "\300\321G\204\377\377\377\377\020 "}, Buffer = {Type = 87678488, Length = 4294965248, Pointer = 0xfffff80006607000 "\300\321G\204\377\377\377\377\020 "}, Package = {Type = 87678488, Count = 4294965248, Elements = 0xfffff80006607000}, Reference = {Type = 87678488, ActualType = 4294965248, Handle = 0xfffff80006607000}, Processor = {Type = 87678488, ProcId = 4294965248, PblkAddress = 18446735277723512832, PblkLength = 87678464}, PowerResource = {Type = 87678488, SystemLevel = 4294965248, ResourceOrder = 106983424}}, {Type = 663, Integer = { Type = 663, Value = 18446735277704207896}, String = { Type = 663, Length = 0, Pointer = 0xfffff8000539de18 ""}, Buffer = {Type = 663, Length = 0, Pointer = 0xfffff8000539de18 ""}, Package = {Type = 663, Count = 0, Elements = 0xfffff8000539de18}, Reference = { Type = 663, ActualType = 0, Handle = 0xfffff8000539de18}, Processor = {Type = 663, ProcId = 0, PblkAddress = 18446735277704207896, PblkLength = 2165581152}, PowerResource = {Type = 663, SystemLevel = 0, ResourceOrder = 87678488}}, {Type = 87678464, Integer = { Type = 87678464, Value = 8}, String = {Type = 87678464, Length = 4294965248, Pointer = 0x8 <error: Cannot access memory at address 0x8>}, Buffer = {Type = 87678464, Length = 4294965248, Pointer = 0x8 <error: Cannot access memory at address 0x8>}, Package = {Type = 87678464, Count = 4294965248, Elements = 0x8}, Reference = {Type = 87678464, ActualType = 4294965248, Handle = 0x8}, Processor = {Type = 87678464, ProcId = 4294965248, PblkAddress = 8, PblkLength = 2321771456}, PowerResource = {Type = 87678464, SystemLevel = 4294965248, ResourceOrder = 8}}}, power_res_count = 0} dev = 0x0 sc = <optimized out> sstate = <optimized out> #10 acpi_wake_prep (handle=0xfffff80007706e00, level=<optimized out>, context=<optimized out>, status=<optimized out>) at /opt/src/git-src/sys/dev/acpica/acpi.c:3764 stype = POWER_STYPE_POWEROFF #11 0xffffffff803756db in AcpiNsWalkNamespace (Type=Type@entry=6, StartNode=<optimized out>, StartNode@entry=0xfffff800050b3880, MaxDepth=MaxDepth@entry=100, Flags=Flags@entry=1, DescendingCallback=DescendingCallback@entry=0xffffffff80429320 <acpi_wake_prep>, AscendingCallback=AscendingCallbac k@entry=0x0, Context=0xfffffe008a636ce4, ReturnValue=0x0) at /opt/src/git-src/sys/contrib/dev/acpica/components/namespace/nswalk.c:484 NodePreviouslyVisited = 0 '\000' ParentNode = 0xfffff800050b14c0 ChildNode = 0xfffff80007706e00 ChildType = 6 Level = 2 Status = 0 MutexStatus = <optimized out> #12 0xffffffff80375c45 in AcpiWalkNamespace (Type=Type@entry=6, StartObject=0xfffff800050b3880, MaxDepth=MaxDepth@entry=100, DescendingCallback=0xffffffff80429320 <acpi_wake_prep>, AscendingCallback=AscendingCallback@entry=0x0, Context=Context@entry=0xfffffe008a636ce4, ReturnValue=<optimized out>) at /opt/src/git-src/sys/contrib/dev/acpica/components/namespace/nsxfeval.c:809 Status = 0 #13 0xffffffff80426384 in acpi_wake_prep_walk (stype=POWER_STYPE_POWEROFF) at /opt/src/git-src/sys/dev/acpica/acpi.c:3777 sb_handle = 0xfffff800050b3880 #14 acpi_shutdown (dev=0xfffff80007716e00) at /opt/src/git-src/sys/dev/acpica/acpi.c:878 No locals. #15 0xffffffff8074c706 in DEVICE_SHUTDOWN (dev=0xfffff80007716e00) at ./device_if.h:262 rc = <optimized out> _m = <optimized out> _cep = <optimized out> _ce = <optimized out> _desc = <optimized out> #16 device_shutdown (dev=0xfffff80007716e00) at /opt/src/git-src/sys/kern/subr_bus.c:2753 No locals. #17 bus_generic_shutdown (dev=<optimized out>) at /opt/src/git-src/sys/kern/subr_bus.c:3563 child = <optimized out> #18 0xffffffff8074c706 in DEVICE_SHUTDOWN (dev=0xfffff800051b8200) at ./device_if.h:262 rc = <optimized out> _m = <optimized out> _cep = <optimized out> _ce = <optimized out> #16 device_shutdown (dev=0xfffff80007716e00) at /opt/src/git-src/sys/kern/subr_bus.c:2753 No locals. #17 bus_generic_shutdown (dev=<optimized out>) at /opt/src/git-src/sys/kern/subr_bus.c:3563 child = <optimized out> #18 0xffffffff8074c706 in DEVICE_SHUTDOWN (dev=0xfffff800051b8200) at ./device_if.h:262 rc = <optimized out> _m = <optimized out> _cep = <optimized out> _ce = <optimized out> _desc = <optimized out> #19 device_shutdown (dev=0xfffff800051b8200) at /opt/src/git-src/sys/kern/subr_bus.c:2753 No locals. #20 bus_generic_shutdown (dev=<optimized out>) at /opt/src/git-src/sys/kern/subr_bus.c:3563 child = <optimized out> #21 0xffffffff80750d06 in DEVICE_SHUTDOWN (dev=0xfffff800051b8500) at ./device_if.h:262 rc = <optimized out> _m = <optimized out> _cep = <optimized out> _ce = <optimized out> _desc = <optimized out> #22 device_shutdown (dev=0xfffff800051b8500) at /opt/src/git-src/sys/kern/subr_bus.c:2753 No locals. #23 root_bus_module_handler (mod=<optimized out>, what=<optimized out>, arg=<optimized out>) at /opt/src/git-src/sys/kern/subr_bus.c:5211 No locals. #24 0xffffffff806e534b in module_shutdown (arg1=<optimized out>, arg2=<optimized out>) at /opt/src/git-src/sys/kern/kern_module.c:101 mod = 0xfffff800051d3b00 #25 0xffffffff8070d3d3 in kern_reboot (howto=16392) at /opt/src/git-src/sys/kern/kern_shutdown.c:527 _ep = <optimized out> _t = 0xfffff800050e9f40 _el = 0xfffff800050e4600 once = 1 __pc = 0x0 #26 0xffffffff8070cd9c in sys_reboot (td=0xfffff80006607000, uap=0xfffff80006607428) at /opt/src/git-src/sys/kern/kern_shutdown.c:308 error = 5 #27 0xffffffff80aebe69 in syscallenter (td=0xfffff80006607000) at /opt/src/git-src/sys/amd64/amd64/../../kern/subr_syscall.c:193 se = 0xffffffff81054310 <sysent+1760> p = 0xfffffe0081002010 sa = 0xfffff80006607418 error = <optimized out> sy_thr_static = true traced = <optimized out> _audit_entered = <optimized out> #28 amd64_syscall (td=0xfffff80006607000, traced=0) at /opt/src/git-src/sys/amd64/amd64/trap.c:1208 ksi = {ksi_link = {tqe_next = 0xfffffe008a636f30, tqe_prev = 0xffffffff80aeae4d <trap+2173>}, ksi_info = { si_signo = -1973195040, si_errno = -512, si_code = -2139594896, si_pid = -1, si_uid = 25088, si_status = -2047, si_addr = 0x800000000000, si_value = {sival_int = -860430388, sival_ptr = 0x326493c1ccb6dfcc, sigval_int = -860430388, sigval_ptr = 0x326493c1ccb6dfcc}, _reason = {_fault = { _trapno = 3}, _timer = {_timerid = 3, _overrun = 0}, _mesgq = { _mqd = 3}, _poll = {_band = 3}, _capsicum = {_syscall = 3}, __spare__ = {__spare1__ = 3, __spare2__ = {106984784, -2048, -1973194752, -512, -2126868952, -1, 106983424}}}}, ksi_flags = -2130704888, ksi_sigq = 0x7} #29 <signal handler called> No locals. #30 0x000000000028bb1a in ?? 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