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nickg / nvc

VHDL compiler and simulator
https://www.nickg.me.uk/nvc/
GNU General Public License v3.0
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crash when dumping waves #1030

Open nathanaelhuffman opened 14 hours ago

nathanaelhuffman commented 14 hours ago

This sim seems to run fine if I don't dump the fst, but when I do I get this crash. I'm using --dump-arrays if it matters.

nvc: ../src/rt/wave.c:493: fst_get_ptr: Assertion `l->nparts == type_fields(rtype)' failed.
*** Caught signal 6 (SIGABRT) ***

[0x605cd2eb8f24] ../src/util.c:872 signal_handler
[0x796ed064251f] (/usr/lib/x86_64-linux-gnu/libc.so.6)
[0x796ed06969fc] (/usr/lib/x86_64-linux-gnu/libc.so.6) ./nptl/pthread_kill.c:44 __pthread_kill_implementation
[0x796ed06969fc] (/usr/lib/x86_64-linux-gnu/libc.so.6) ./nptl/pthread_kill.c:78 __pthread_kill_internal
[0x796ed06969fc] (/usr/lib/x86_64-linux-gnu/libc.so.6) ./nptl/pthread_kill.c:89 pthread_kill@@GLIBC_2.34
[0x796ed0642475] (/usr/lib/x86_64-linux-gnu/libc.so.6) ../sysdeps/posix/raise.c:26 raise
[0x796ed06287f2] (/usr/lib/x86_64-linux-gnu/libc.so.6) ./stdlib/abort.c:79 abort
[0x796ed062871a] (/usr/lib/x86_64-linux-gnu/libc.so.6) ./assert/assert.c:92 __assert_fail_base.cold
[0x796ed0639e95] (/usr/lib/x86_64-linux-gnu/libc.so.6) ./assert/assert.c:101 __assert_fail
[0x605cd2fc54ef] ../src/rt/wave.c:493 fst_get_ptr
[0x605cd2fc571e] ../src/rt/wave.c:528 fst_get_array_range
[0x605cd2fc6921] ../src/rt/wave.c:801 fst_alias_var
[0x605cd2fc6af3] ../src/rt/wave.c:830 fst_process_signal
[0x605cd2fc71ca] ../src/rt/wave.c:934 fst_walk_design
[0x605cd2fc7313] ../src/rt/wave.c:952 fst_walk_design
[0x605cd2fc7313] ../src/rt/wave.c:952 fst_walk_design
[0x605cd2fc75c6] ../src/rt/wave.c:1003 wave_dumper_restart
[0x605cd2eb0899] ../src/nvc.c:868 run_cmd
[0x605cd2eb359f] ../src/nvc.c:2135 process_command
[0x605cd2eafa84] ../src/nvc.c:542 elaborate
[0x605cd2eb3585] ../src/nvc.c:2133 process_command
[0x605cd2eb3ac5] ../src/nvc.c:2293 main

and the backtrace from gdb:

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffe6e00640 (LWP 32620)]
[New Thread 0x7fffe6400640 (LWP 32621)]
[New Thread 0x7fffe5a00640 (LWP 32622)]
[New Thread 0x7fffe5000640 (LWP 32623)]
[New Thread 0x7fffdfe00640 (LWP 32624)]
[New Thread 0x7fffdf400640 (LWP 32625)]
[New Thread 0x7fffdea00640 (LWP 32626)]
nvc: ../src/rt/wave.c:493: fst_get_ptr: Assertion `l->nparts == type_fields(rtype)' failed.

Thread 1 "nvc" received signal SIGABRT, Aborted.
__pthread_kill_implementation (no_tid=0, signo=6, threadid=140737239955648) at ./nptl/pthread_kill.c:44
44      ./nptl/pthread_kill.c: No such file or directory.
(gdb) bt
#0  __pthread_kill_implementation (no_tid=0, signo=6, threadid=140737239955648) at ./nptl/pthread_kill.c:44
#1  __pthread_kill_internal (signo=6, threadid=140737239955648) at ./nptl/pthread_kill.c:78
#2  __GI___pthread_kill (threadid=140737239955648, signo=signo@entry=6) at ./nptl/pthread_kill.c:89
#3  0x00007ffff1042476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
#4  0x00007ffff10287f3 in __GI_abort () at ./stdlib/abort.c:79
#5  0x00007ffff102871b in __assert_fail_base (fmt=0x7ffff11dd130 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
    assertion=0x555555764b18 "l->nparts == type_fields(rtype)", file=0x5555557649a2 "../src/rt/wave.c", line=493, function=<optimized out>)
    at ./assert/assert.c:92
#6  0x00007ffff1039e96 in __GI___assert_fail (assertion=0x555555764b18 "l->nparts == type_fields(rtype)",
    file=0x5555557649a2 "../src/rt/wave.c", line=493, function=0x555555764e90 <__PRETTY_FUNCTION__.5> "fst_get_ptr") at ./assert/assert.c:101
#7  0x00005555556814f0 in fst_get_ptr (wd=0x5555591ce630, scope=0x555559f9f450, where=0x7fffe47821b0) at ../src/rt/wave.c:493
#8  0x000055555568171f in fst_get_array_range (wd=0x5555591ce630, type=0x7fffe7005280, scope=0x555559f9f450, where=0x7fffe47821b0, dim=0,
    left=0x7fffffffcd58, right=0x7fffffffcd60, dir=0x7fffffffcd54, length=0x7fffffffcd68) at ../src/rt/wave.c:528
#9  0x0000555555682922 in fst_alias_var (wd=0x5555591ce630, d=0x7fffe70052c0, s=0x7fffe7601b80, tb=0x55555965a270) at ../src/rt/wave.c:801
#10 0x0000555555682af4 in fst_process_signal (wd=0x5555591ce630, scope=0x555559656520, d=0x7fffe70052c0, type=0x7fffe7005280, tb=0x55555965a270)
    at ../src/rt/wave.c:830
#11 0x00005555556831cb in fst_walk_design (wd=0x5555591ce630, block=0x7fffe7004e60) at ../src/rt/wave.c:934
#12 0x0000555555683314 in fst_walk_design (wd=0x5555591ce630, block=0x7fffe7004670) at ../src/rt/wave.c:952
#13 0x0000555555683314 in fst_walk_design (wd=0x5555591ce630, block=0x7fffe70042b0) at ../src/rt/wave.c:952
#14 0x00005555556835c7 in wave_dumper_restart (wd=0x5555591ce630, m=0x555557a6bee0, jit=0x555555870f30) at ../src/rt/wave.c:1003
#15 0x000055555556c89a in run_cmd (argc=6, argv=0x7fffffffd488, state=0x7fffffffd2d0) at ../src/nvc.c:868
#16 0x000055555556f5a0 in process_command (argc=6, argv=0x7fffffffd488, state=0x7fffffffd2d0) at ../src/nvc.c:2135
#17 0x000055555556ba85 in elaborate (argc=6, argv=0x7fffffffd488, state=0x7fffffffd2d0) at ../src/nvc.c:542
#18 0x000055555556f586 in process_command (argc=11, argv=0x7fffffffd460, state=0x7fffffffd2d0) at ../src/nvc.c:2133
#19 0x000055555556fac6 in main (argc=11, argv=0x7fffffffd460) at ../src/nvc.c:2293
nathanaelhuffman commented 7 hours ago

Note that this is a regression somewhere between head and af2dd6b2289e6f3114b405f441763fb34742b652 as I rolled back to this build which I knew was working, and the waves dump fine as I remembered.