Coredump GDB "Backtrace stopped: frame did not save the PC"

Hi all,
In Freedom-e-sdk software, some backtraces from abnormal process termination are truncated. is this a known issue with freedom-e-sdk.
^C
Program received signal SIGINT, Interrupt.
0x0000000008004ed4 in __metal_driver_sifive_test0_exit (sd=0x8008288 <__metal_dt_teststatus_3000>, code=0) at /home/oslab/santosh/git-code/main-branch/avanti1_sw_private_ext/targetsw/freedom-e-sdk/freedom-metal/src/drivers/sifive_test0.c:23
23 __metal_io_u32 *)(base + METAL_SIFIVE_TEST0_FINISHER_OFFSET)) = out;
(gdb) bt
#0 0x0000000008004ed4 in __metal_driver_sifive_test0_exit (sd=0x8008288 <__metal_dt_teststatus_3000>, code=0) at /home/oslab/santosh/freedom-e-sdk/freedom-metal/src/drivers/sifive_test0.c:23
#1 0x000000000800577c in __metal_shutdown_exit (sd=0x8008288 <__metal_dt_teststatus_3000>, code=0) at /home/oslab/santosh/freedom-e-sdk/freedom-metal/metal/shutdown.h:27
#2 0x000000000800579c in metal_shutdown (code=0) at /home/oslab/santosh/freedom-e-sdk/freedom-metal/src/shutdown.c:12
#3 0x00000000080059f2 in _exit (exit_status=0) at /home/oslab/santosh/freedom-e-sdk/freedom-metal/gloss/sys_exit.c:4
#4 0x0000000008001776 in exit ()
Backtrace stopped: frame did not save the PC