[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".
0x0000ffffb2b84c00 in __GI___wait4 (pid=715, stat_loc=stat_loc@entry=0xffffeaca2bc0, options=options@entry=0, usage=usage@entry=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:27
27	../sysdeps/unix/sysv/linux/wait4.c: No such file or directory.
#0  0x0000ffffb2b84c00 in __GI___wait4 (pid=715, stat_loc=stat_loc@entry=0xffffeaca2bc0, options=options@entry=0, usage=usage@entry=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:27
        _x2tmp = <optimized out>
        _x0tmp = 715
        _x0 = 715
        _x2 = 0
        _x8 = 260
        _x3tmp = 0
        _x1tmp = 281474620861376
        _x1 = 281474620861376
        _x3 = 0
        _sys_result = <optimized out>
        _sys_result = <optimized out>
        sc_ret = <optimized out>
#1  0x0000ffffb2b84bb8 in __GI___waitpid (pid=<optimized out>, stat_loc=stat_loc@entry=0xffffeaca2bc0, options=options@entry=0) at waitpid.c:38
No locals.
#2  0x0000ffffb2b21210 in do_system (line=<optimized out>) at ../sysdeps/posix/system.c:172
        __result = <optimized out>
        _buffer = {__routine = 0xffffb2b213f8 <cancel_handler>, __arg = 0xffffeaca2bc8, __canceltype = 0, __prev = 0x0}
        _avail = 1
        cancel_args = {quit = 0xffffb2c513e8 <quit>, intr = 0xffffb2c51350 <intr>, pid = 715}
        status = -1
        ret = 0
        pid = 715
        sa = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {65536, 0 <repeats 15 times>}}, sa_flags = 0, sa_restorer = 0xffffb2f3dfc0}
        omask = {__val = {128, 2449899969, 281473681030719, 281473684069912, 281474620861620, 281474620861624, 38279687, 281473681019176, 281474620861864, 281473684016160, 1, 281474620861848, 281473684059912, 0, 281473684073360, 4}}
        reset = {__val = {6, 0 <repeats 15 times>}}
        spawn_attr = {__flags = 12, __pgrp = 0, __sd = {__val = {6, 0 <repeats 15 times>}}, __ss = {__val = {128, 2449899969, 281473681030719, 281473684069912, 281474620861620, 281474620861624, 38279687, 281473681019176, 281474620861864, 281473684016160, 1, 281474620861848, 281473684059912, 0, 281473684073360, 4}}, __sp = {sched_priority = 0}, __policy = 0, __pad = {0 <repeats 16 times>}}
#3  0x0000aaaacb04e668 in AP_HAL::dump_stack_trace () at ../../libraries/AP_HAL_SITL/system.cpp:94
        dumpstack = 0xaaaacb12c860 "Tools/scripts/dumpstack"
        statbuf = {st_dev = 41, st_ino = 21, st_mode = 33261, st_nlink = 1, st_uid = 0, st_gid = 0, st_rdev = 0, __pad1 = 0, st_size = 265, st_blksize = 4096, __pad2 = 0, st_blocks = 8, st_atim = {tv_sec = 1772151967, tv_nsec = 355576683}, st_mtim = {tv_sec = 1772151936, tv_nsec = 109347043}, st_ctim = {tv_sec = 1772151936, tv_nsec = 109347043}, __glibc_reserved = {0, 0}}
        paths = {0xaaaacb12c860 "Tools/scripts/dumpstack", 0xaaaacb12c878 "APM/Tools/scripts/dumpstack"}
        cmd = "sh Tools/scripts/dumpstack 714 >segv_arduplane.714.out 2>&1", '\000' <repeats 40 times>
        progname = "/ardupilot/build/sitl/bin\000arduplane", '\000' <repeats 64 times>
        p = 0xffffeaca3089 ""
        n = 35
        output_filepath = "segv_arduplane.714.out\000\000\000\000\000\000\000"
        fd = 0
        buf = '\000' <repeats 728 times>...
#4  0x0000aaaacb04efd8 in _sig_fpe (signum=8) at ../../libraries/AP_HAL_SITL/SITL_cmdline.cpp:48
No locals.
#5  <signal handler called>
No symbol table info available.
#6  is_equal<float, float> (v_1=nan(0x400000), v_2=0) at ../../libraries/AP_Math/AP_Math.cpp:35
No locals.
#7  0x0000aaaacafd0c28 in GCS_MAVLINK::handle_param_set (this=0xaaaaea787c20, msg=...) at ../../libraries/GCS_MAVLink/GCS_Param.cpp:299
        packet = {param_value = nan(0x400000), target_system = 1 '\001', target_component = 0 '\000', param_id = "ARSPD_FBW_MIN\000\000", param_type = 9 '\t'}
        var_type = AP_PARAM_INT16
        vp = 0xaaaacb1b3916 <plane+14>
        key = "ARSPD_FBW_MIN\000\000\000"
        parameter_flags = 0
        old_value = 0
        force_save = false
        logger = 0xaea6a0652e9200d7
#8  0x0000aaaacafd11f4 in GCS_MAVLINK::handle_common_param_message (this=0xaaaaea787c20, msg=...) at ../../libraries/GCS_MAVLink/GCS_Param.cpp:448
No locals.
#9  0x0000aaaacafdd550 in GCS_MAVLINK::handle_common_message (this=0xaaaaea787c20, msg=...) at ../../libraries/GCS_MAVLink/GCS_Common.cpp:2970
No locals.
#10 0x0000aaaacaf28fb0 in GCS_MAVLINK_Plane::handleMessage (this=0xaaaaea787c20, msg=...) at ../../ArduPlane/GCS_Mavlink.cpp:1336
No locals.
#11 0x0000aaaacafd8d34 in GCS_MAVLINK::packetReceived (this=0xaaaaea787c20, status=..., msg=...) at ../../libraries/GCS_MAVLink/GCS_Common.cpp:1290
No locals.
#12 0x0000aaaacaf27370 in GCS_MAVLINK_Plane::packetReceived (this=0xaaaaea787c20, status=..., msg=...) at ../../ArduPlane/GCS_Mavlink.cpp:708
No locals.
#13 0x0000aaaacafd8fe8 in GCS_MAVLINK::update_receive (this=0xaaaaea787c20, max_time_us=1000) at ../../libraries/GCS_MAVLink/GCS_Common.cpp:1344
        c = 22 '\026'
        protocol_timeout = 4000
        parsed_packet = false
        i = 30
        msg = {checksum = 5741, magic = 254 '\376', len = 23 '\027', incompat_flags = 0 '\000', compat_flags = 0 '\000', seq = 1 '\001', sysid = 255 '\377', compid = 0 '\000', msgid = 23, payload64 = {5927018591034540032, 6870032626590437459, 2533274795526477, 0 <repeats 30 times>}, ck = "m\026", signature = '\000' <repeats 12 times>}
        status = {msg_received = 0 '\000', buffer_overrun = 0 '\000', parse_error = 0 '\000', parse_state = MAVLINK_PARSE_STATE_IDLE, packet_idx = 23 '\027', current_rx_seq = 2 '\002', current_tx_seq = 0 '\000', packet_rx_success_count = 2, packet_rx_drop_count = 0, flags = 3 '\003', signature_wait = 11 '\v', signing = 0xffffeaca4a80, signing_streams = 0xaaaacaf97b9c <NavEKF2::check_log_write()+20>}
        tstart_us = 2833866
        now_ms = 2833
        nbytes = 31
        tnow = 43690
#14 0x0000aaaacafda5ec in GCS::update_receive (this=0xaaaacb1b69b0 <plane+12456>) at ../../libraries/GCS_MAVLink/GCS_Common.cpp:1872
        i = 0 '\000'
#15 0x0000aaaacaf20f74 in Functor<void>::method_wrapper<GCS, &GCS::update_receive> (obj=0xaaaacb1b69b0 <plane+12456>) at ../../libraries/AP_HAL/utility/functor.h:88
        t = 0xaaaacb1b69b0 <plane+12456>
#16 0x0000aaaacaf964e0 in Functor<void>::operator() (this=0xaaaacb1a7528 <Plane::scheduler_tasks+544>) at ../../libraries/AP_HAL/utility/functor.h:54
No locals.
#17 0x0000aaaacafb0cd8 in AP_Scheduler::run (this=0xaaaacb1b4140 <plane+2104>, time_available=20000) at ../../libraries/AP_Scheduler/AP_Scheduler.cpp:176
        dt = 1
        interval_ticks = 1
        time_taken = 0
        i = 17 '\021'
        run_started_usec = 2833866
        now = 2833866
#18 0x0000aaaacafb11ec in AP_Scheduler::loop (this=0xaaaacb1b4140 <plane+2104>) at ../../libraries/AP_Scheduler/AP_Scheduler.cpp:295
        sample_time_us = 2833866
        loop_us = 20000
        now = 2833866
        time_available = 20000
#19 0x0000aaaacaf1f24c in Plane::loop (this=0xaaaacb1b3908 <plane>) at ../../ArduPlane/ArduPlane.cpp:128
No locals.
#20 0x0000aaaacb042c60 in HAL_SITL::run (this=0xaaaacb1c14c8 <AP_HAL::get_HAL()::hal>, argc=9, argv=0xffffeaca4ed8, callbacks=0xaaaacb1b3908 <plane>) at ../../libraries/AP_HAL_SITL/HAL_SITL_Class.cpp:180
        now = 2814
        __PRETTY_FUNCTION__ = "virtual void HAL_SITL::run(int, char* const*, AP_HAL::HAL::Callbacks*) const"
        new_argv_offset = 9 '\t'
        using_watchdog = false
        last_watchdog_save = 1733
#21 0x0000aaaacaf20c68 in main (argc=9, argv=0xffffeaca4ed8) at ../../ArduPlane/ArduPlane.cpp:695
No locals.

Thread 1 (Thread 0xffffb2f3bee0 (LWP 714)):
#0  0x0000ffffb2b84c00 in __GI___wait4 (pid=715, stat_loc=stat_loc@entry=0xffffeaca2bc0, options=options@entry=0, usage=usage@entry=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:27
        _x2tmp = <optimized out>
        _x0tmp = 715
        _x0 = 715
        _x2 = 0
        _x8 = 260
        _x3tmp = 0
        _x1tmp = 281474620861376
        _x1 = 281474620861376
        _x3 = 0
        _sys_result = <optimized out>
        _sys_result = <optimized out>
        sc_ret = <optimized out>
#1  0x0000ffffb2b84bb8 in __GI___waitpid (pid=<optimized out>, stat_loc=stat_loc@entry=0xffffeaca2bc0, options=options@entry=0) at waitpid.c:38
No locals.
#2  0x0000ffffb2b21210 in do_system (line=<optimized out>) at ../sysdeps/posix/system.c:172
        __result = <optimized out>
        _buffer = {__routine = 0xffffb2b213f8 <cancel_handler>, __arg = 0xffffeaca2bc8, __canceltype = 0, __prev = 0x0}
        _avail = 1
        cancel_args = {quit = 0xffffb2c513e8 <quit>, intr = 0xffffb2c51350 <intr>, pid = 715}
        status = -1
        ret = 0
        pid = 715
        sa = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {65536, 0 <repeats 15 times>}}, sa_flags = 0, sa_restorer = 0xffffb2f3dfc0}
        omask = {__val = {128, 2449899969, 281473681030719, 281473684069912, 281474620861620, 281474620861624, 38279687, 281473681019176, 281474620861864, 281473684016160, 1, 281474620861848, 281473684059912, 0, 281473684073360, 4}}
        reset = {__val = {6, 0 <repeats 15 times>}}
        spawn_attr = {__flags = 12, __pgrp = 0, __sd = {__val = {6, 0 <repeats 15 times>}}, __ss = {__val = {128, 2449899969, 281473681030719, 281473684069912, 281474620861620, 281474620861624, 38279687, 281473681019176, 281474620861864, 281473684016160, 1, 281474620861848, 281473684059912, 0, 281473684073360, 4}}, __sp = {sched_priority = 0}, __policy = 0, __pad = {0 <repeats 16 times>}}
#3  0x0000aaaacb04e668 in AP_HAL::dump_stack_trace () at ../../libraries/AP_HAL_SITL/system.cpp:94
        dumpstack = 0xaaaacb12c860 "Tools/scripts/dumpstack"
        statbuf = {st_dev = 41, st_ino = 21, st_mode = 33261, st_nlink = 1, st_uid = 0, st_gid = 0, st_rdev = 0, __pad1 = 0, st_size = 265, st_blksize = 4096, __pad2 = 0, st_blocks = 8, st_atim = {tv_sec = 1772151967, tv_nsec = 355576683}, st_mtim = {tv_sec = 1772151936, tv_nsec = 109347043}, st_ctim = {tv_sec = 1772151936, tv_nsec = 109347043}, __glibc_reserved = {0, 0}}
        paths = {0xaaaacb12c860 "Tools/scripts/dumpstack", 0xaaaacb12c878 "APM/Tools/scripts/dumpstack"}
        cmd = "sh Tools/scripts/dumpstack 714 >segv_arduplane.714.out 2>&1", '\000' <repeats 40 times>
        progname = "/ardupilot/build/sitl/bin\000arduplane", '\000' <repeats 64 times>
        p = 0xffffeaca3089 ""
        n = 35
        output_filepath = "segv_arduplane.714.out\000\000\000\000\000\000\000"
        fd = 0
        buf = '\000' <repeats 728 times>...
#4  0x0000aaaacb04efd8 in _sig_fpe (signum=8) at ../../libraries/AP_HAL_SITL/SITL_cmdline.cpp:48
No locals.
#5  <signal handler called>
No symbol table info available.
#6  is_equal<float, float> (v_1=nan(0x400000), v_2=0) at ../../libraries/AP_Math/AP_Math.cpp:35
No locals.
#7  0x0000aaaacafd0c28 in GCS_MAVLINK::handle_param_set (this=0xaaaaea787c20, msg=...) at ../../libraries/GCS_MAVLink/GCS_Param.cpp:299
        packet = {param_value = nan(0x400000), target_system = 1 '\001', target_component = 0 '\000', param_id = "ARSPD_FBW_MIN\000\000", param_type = 9 '\t'}
        var_type = AP_PARAM_INT16
        vp = 0xaaaacb1b3916 <plane+14>
        key = "ARSPD_FBW_MIN\000\000\000"
        parameter_flags = 0
        old_value = 0
        force_save = false
        logger = 0xaea6a0652e9200d7
#8  0x0000aaaacafd11f4 in GCS_MAVLINK::handle_common_param_message (this=0xaaaaea787c20, msg=...) at ../../libraries/GCS_MAVLink/GCS_Param.cpp:448
No locals.
#9  0x0000aaaacafdd550 in GCS_MAVLINK::handle_common_message (this=0xaaaaea787c20, msg=...) at ../../libraries/GCS_MAVLink/GCS_Common.cpp:2970
No locals.
#10 0x0000aaaacaf28fb0 in GCS_MAVLINK_Plane::handleMessage (this=0xaaaaea787c20, msg=...) at ../../ArduPlane/GCS_Mavlink.cpp:1336
No locals.
#11 0x0000aaaacafd8d34 in GCS_MAVLINK::packetReceived (this=0xaaaaea787c20, status=..., msg=...) at ../../libraries/GCS_MAVLink/GCS_Common.cpp:1290
No locals.
#12 0x0000aaaacaf27370 in GCS_MAVLINK_Plane::packetReceived (this=0xaaaaea787c20, status=..., msg=...) at ../../ArduPlane/GCS_Mavlink.cpp:708
No locals.
#13 0x0000aaaacafd8fe8 in GCS_MAVLINK::update_receive (this=0xaaaaea787c20, max_time_us=1000) at ../../libraries/GCS_MAVLink/GCS_Common.cpp:1344
        c = 22 '\026'
        protocol_timeout = 4000
        parsed_packet = false
        i = 30
        msg = {checksum = 5741, magic = 254 '\376', len = 23 '\027', incompat_flags = 0 '\000', compat_flags = 0 '\000', seq = 1 '\001', sysid = 255 '\377', compid = 0 '\000', msgid = 23, payload64 = {5927018591034540032, 6870032626590437459, 2533274795526477, 0 <repeats 30 times>}, ck = "m\026", signature = '\000' <repeats 12 times>}
        status = {msg_received = 0 '\000', buffer_overrun = 0 '\000', parse_error = 0 '\000', parse_state = MAVLINK_PARSE_STATE_IDLE, packet_idx = 23 '\027', current_rx_seq = 2 '\002', current_tx_seq = 0 '\000', packet_rx_success_count = 2, packet_rx_drop_count = 0, flags = 3 '\003', signature_wait = 11 '\v', signing = 0xffffeaca4a80, signing_streams = 0xaaaacaf97b9c <NavEKF2::check_log_write()+20>}
        tstart_us = 2833866
        now_ms = 2833
        nbytes = 31
        tnow = 43690
#14 0x0000aaaacafda5ec in GCS::update_receive (this=0xaaaacb1b69b0 <plane+12456>) at ../../libraries/GCS_MAVLink/GCS_Common.cpp:1872
        i = 0 '\000'
#15 0x0000aaaacaf20f74 in Functor<void>::method_wrapper<GCS, &GCS::update_receive> (obj=0xaaaacb1b69b0 <plane+12456>) at ../../libraries/AP_HAL/utility/functor.h:88
        t = 0xaaaacb1b69b0 <plane+12456>
#16 0x0000aaaacaf964e0 in Functor<void>::operator() (this=0xaaaacb1a7528 <Plane::scheduler_tasks+544>) at ../../libraries/AP_HAL/utility/functor.h:54
No locals.
#17 0x0000aaaacafb0cd8 in AP_Scheduler::run (this=0xaaaacb1b4140 <plane+2104>, time_available=20000) at ../../libraries/AP_Scheduler/AP_Scheduler.cpp:176
        dt = 1
        interval_ticks = 1
        time_taken = 0
        i = 17 '\021'
        run_started_usec = 2833866
        now = 2833866
#18 0x0000aaaacafb11ec in AP_Scheduler::loop (this=0xaaaacb1b4140 <plane+2104>) at ../../libraries/AP_Scheduler/AP_Scheduler.cpp:295
        sample_time_us = 2833866
        loop_us = 20000
        now = 2833866
        time_available = 20000
#19 0x0000aaaacaf1f24c in Plane::loop (this=0xaaaacb1b3908 <plane>) at ../../ArduPlane/ArduPlane.cpp:128
No locals.
#20 0x0000aaaacb042c60 in HAL_SITL::run (this=0xaaaacb1c14c8 <AP_HAL::get_HAL()::hal>, argc=9, argv=0xffffeaca4ed8, callbacks=0xaaaacb1b3908 <plane>) at ../../libraries/AP_HAL_SITL/HAL_SITL_Class.cpp:180
        now = 2814
        __PRETTY_FUNCTION__ = "virtual void HAL_SITL::run(int, char* const*, AP_HAL::HAL::Callbacks*) const"
        new_argv_offset = 9 '\t'
        using_watchdog = false
        last_watchdog_save = 1733
#21 0x0000aaaacaf20c68 in main (argc=9, argv=0xffffeaca4ed8) at ../../ArduPlane/ArduPlane.cpp:695
No locals.
A debugging session is active.

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