maybe_hw_step: Assertion `has_single_step_breakpoints (thread)' failed.
Aborted (core dumped)
EC@mpr3.1> ls -l
total 7464
-rw------- 1 root root  630784 Jun 28 12:14 core-gdbserver-11475-1656418477
-rwxr-xr-x 1 root root 7265572 Jun 28 12:12 gdbserver
EC@mpr3.1> gdb ./gdbserver ./core-gdbserver-11475-1656418477
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Reading symbols from ./gdbserver...
[New LWP 11475]

warning: Unable to find libthread_db matching inferior's thread library, thread debugging will not be available.
Core was generated by `./gdbserver --once --attach :1234 325'.
Program terminated with signal SIGABRT, Aborted.
#0  0x76ca6216 in ?? () from /lib/libc.so.6
(gdb) bt
#0  0x76ca6216 in ?? () from /lib/libc.so.6
#1  0x76cb49d4 in raise () from /lib/libc.so.6
#2  0x76ca5ca0 in abort () from /lib/libc.so.6
#3  0x004a8280 in abort_or_exit () at ../../gdb-13.0.50.20221021/gdbserver/utils.cc:39
#4  internal_verror (file=<optimized out>, line=line@entry=2448, fmt=0x0, fmt@entry=0x7ee8c2bc "\210\316N", args=...,
    args@entry=...) at ../../gdb-13.0.50.20221021/gdbserver/utils.cc:108
#5  0x004d83ce in internal_error_loc (file=<optimized out>, line=line@entry=2448, fmt=0x4e4bc8 "%s: Assertion `%s' failed.")
    at ../../gdb-13.0.50.20221021/gdbsupport/errors.cc:58
#6  0x004c5c28 in linux_process_target::maybe_hw_step (this=<optimized out>, thread=<optimized out>)
    at ../../gdb-13.0.50.20221021/gdbserver/linux-low.cc:2448
#7  linux_process_target::maybe_hw_step (this=<optimized out>, thread=<optimized out>)
    at ../../gdb-13.0.50.20221021/gdbserver/linux-low.cc:2440
#8  0x004c660a in linux_process_target::resume_stopped_resumed_lwps (this=this@entry=0x50a3cc <the_arm_target>, thread=0x209fb28)
    at ../../gdb-13.0.50.20221021/gdbserver/linux-low.cc:2466
#9  0x004c7614 in <lambda(thread_info*)>::operator() (__closure=<synthetic pointer>, thread=<optimized out>)
    at ../../gdb-13.0.50.20221021/gdbserver/linux-low.cc:2606
#10 for_each_thread<linux_process_target::wait_for_event_filtered(ptid_t, ptid_t, int*, int)::<lambda(thread_info*)> > (func=...)
    at ../../gdb-13.0.50.20221021/gdbserver/gdbthread.h:159
#11 linux_process_target::wait_for_event_filtered (this=this@entry=0x50a3cc <the_arm_target>, wait_ptid=..., filter_ptid=...,
    wstatp=0x7ee8c544, options=1073741824) at ../../gdb-13.0.50.20221021/gdbserver/linux-low.cc:2604
#12 0x004c9426 in linux_process_target::wait_for_event (options=1079026852, wstatp=0x7ee8c544, ptid=...,
    this=0x50a3cc <the_arm_target>) at ../../gdb-13.0.50.20221021/gdbserver/linux-low.cc:2676
#13 linux_process_target::wait_1 (this=this@entry=0x50a3cc <the_arm_target>, ptid=...,
    ourstatus=ourstatus@entry=0x50c9f8 <g_client_state+1288>, target_options=..., target_options@entry=...)
    at ../../gdb-13.0.50.20221021/gdbserver/linux-low.cc:2970
#14 0x004cab6c in linux_process_target::wait (this=0x50a3cc <the_arm_target>, ptid=..., ourstatus=0x50c9f8 <g_client_state+1288>,
    target_options=...) at ../../gdb-13.0.50.20221021/gdbserver/linux-low.cc:3624
#15 0x004b9778 in target_wait (options=..., status=0x50c9f8 <g_client_state+1288>, ptid=...)
    at ../../gdb-13.0.50.20221021/gdbserver/target.cc:197
#16 mywait (ptid=..., ourstatus=ourstatus@entry=0x50c9f8 <g_client_state+1288>, options=...,
    connected_wait=connected_wait@entry=1) at ../../gdb-13.0.50.20221021/gdbserver/target.cc:142
#17 0x004b3428 in resume (actions=<optimized out>, num_actions=<optimized out>)
--Type <RET> for more, q to quit, c to continue without paging--c
    at ../../gdb-13.0.50.20221021/gdbserver/server.cc:2916
#18 resume (actions=0x20a6778, num_actions=<optimized out>) at ../../gdb-13.0.50.20221021/gdbserver/server.cc:2888
#19 0x004b3ed0 in handle_v_cont (own_buf=0x20a6778 "E\001") at ../../gdb-13.0.50.20221021/gdbserver/server.cc:2875
#20 handle_v_requests (own_buf=own_buf@entry=0x208b0a8 "vCont;r45b444,45b44c:p145.18a;c:p145.-1", packet_len=packet_len@entry=39, new_packet_len=new_packet_len@entry=0x7ee8c8ac) at ../../gdb-13.0.50.20221021/gdbserver/server.cc:3135
#21 0x004b6b76 in process_serial_event () at ../../gdb-13.0.50.20221021/gdbserver/server.cc:4481
#22 handle_serial_event (err=<optimized out>, client_data=<optimized out>) at ../../gdb-13.0.50.20221021/gdbserver/server.cc:4513
#23 0x004d8904 in gdb_wait_for_event (block=block@entry=1) at ../../gdb-13.0.50.20221021/gdbsupport/event-loop.cc:694
#24 0x004d9034 in gdb_wait_for_event (block=1) at ../../gdb-13.0.50.20221021/gdbsupport/event-loop.cc:593
#25 gdb_do_one_event (mstimeout=mstimeout@entry=-1) at ../../gdb-13.0.50.20221021/gdbsupport/event-loop.cc:264
#26 0x004a8a6c in start_event_loop () at ../../gdb-13.0.50.20221021/gdbserver/server.cc:3511
#27 captured_main (argv=<optimized out>, argc=5) at ../../gdb-13.0.50.20221021/gdbserver/server.cc:3991
#28 main (argc=5, argv=<optimized out>) at ../../gdb-13.0.50.20221021/gdbserver/server.cc:4077
(gdb)
(gdb)
(gdb) info thread
  Id   Target Id         Frame
* 1    LWP 11475         0x76ca6216 in ?? () from /lib/libc.so.6
(gdb)