toolchain/58503: gdb error rerunning tests/fs/nullfs/t_basic

[Christoph Badura <bad%bsd.de@localhost>]

>Number:         58503
>Category:       toolchain
>Synopsis:       restarting the progamm triggers an error in gdb
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Jul 28 17:10:00 +0000 2024
>Originator:     Christoph Badura <bad%bsd.de@localhost>
>Release:        NetBSD 10.99.11
>Organization:
Bozotic Software Testing Labs
	<organization of PR author (multiple lines)>
>Environment:
	<The following information is extracted from your kernel. Please>
	<append output of "ldd", "ident" where relevant (multiple lines).>
System: NetBSD netbsd10 10.99.11 NetBSD 10.99.11 (GENERIC) #3: Sun Jul 28 18:09:37 CEST 2024 bad@inspiral-coalescence-ringdown:/Users/bad/netbsd-gsoc/obj/obj.amd64/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
restarting/rerunning the program caauses a gdb error:

I first noticed this in a NetBSD 10.0 VM.  But a VM with -current from
sources as of 2024-07-27 show the same behaviour.

Script started on Sun Jul 28 16:37:22 2024
netbsd10$ cd /usr/tests/fs/nullfs
netbsd10$ gdb t_basic
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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Type "show copying" and "show warranty" for details.
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Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
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Reading symbols from t_basic...
(No debugging symbols found in t_basic)
(gdb) b main
Breakpoint 1 at 0x19ea
(gdb) r basic
Starting program: /usr/tests/fs/nullfs/t_basic basic

Breakpoint 1, 0x00000000cec019ea in main ()
(gdb) c
Continuing.
t_basic: WARNING: Running test cases without atf-run(1) is unsupported
t_basic: WARNING: No isolation nor timeout control is being applied; you may get unexpected failures; see atf-test-case(4)
[   1.0000000] entropy: ready
[New LWP 581 of process 671]
[New LWP 582 of process 671]
[New LWP 1474 of process 671]
[New LWP 1644 of process 671]
[New LWP 1443 of process 671]
[New LWP 1483 of process 671]
[New LWP 1642 of process 671]
[New LWP 1450 of process 671]
[New LWP 1440 of process 671]
[New LWP 1472 of process 671]
[New LWP 1640 of process 671]
[New LWP 1441 of process 671]
[New LWP 1442 of process 671]
[New LWP 1460 of process 671]
[New LWP 1446 of process 671]
[New LWP 1468 of process 671]
[New LWP 1462 of process 671]
[New LWP 1342 of process 671]
[New LWP 1616 of process 671]
passed
[Inferior 1 (process 671) exited normally]
(gdb) r
Starting program: /usr/tests/fs/nullfs/t_basic basic

Breakpoint 1, 0x00000001848019ea in main ()
(gdb) c
Continuing.
t_basic: WARNING: Running test cases without atf-run(1) is unsupported
t_basic: WARNING: No isolation nor timeout control is being applied; you may get unexpected failures; see atf-test-case(4)
[   1.0000000] entropy: ready
[New LWP 1348 of process 1617]
[New LWP 1627 of process 1617]
[New LWP 1626 of process 1617]
[New LWP 1623 of process 1617]
[New LWP 1613 of process 1617]
[New LWP 1608 of process 1617]
[New LWP 1628 of process 1617]
[New LWP 1622 of process 1617]
[New LWP 1467 of process 1617]
[New LWP 1387 of process 1617]
[New LWP 1579 of process 1617]
[New LWP 1445 of process 1617]
[New LWP 1609 of process 1617]
[New LWP 1615 of process 1617]
[New LWP 1463 of process 1617]
[New LWP 1337 of process 1617]
/usr/src/external/gpl3/gdb/lib/libgdb/../../dist/gdb/infrun.c:7221: internal-error: [LWP 1617 of process 1617] has inconsistent state: trap_expected=1

A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n) y

This is a bug, please report it.  For instructions, see:
<https://www.gnu.org/software/gdb/bugs/>.

/usr/src/external/gpl3/gdb/lib/libgdb/../../dist/gdb/infrun.c:7221: internal-error: [LWP 1617 of process 1617] has inconsistent state: trap_expected=1

A problem internal to GDB has been detected,
further debugging may prove unreliable.
Create a core file of GDB? (y or n) y
[ 1572.9776388] sorry, pid 1617 was killed: orphaned traced process
[1]   Abort trap              gdb t_basic
netbsd10$ exit
Script done on Sun Jul 28 16:37:56 2024

>How-To-Repeat:

cd /usr/tests/fs/nullfs
gdb t_basic
b main
r basic
c
r
c

>Fix:
yes please.

>Unformatted:
 	<Please check that the above is correct for the bug being reported,>
 	<and append source date of snapshot, if applicable (one line).>