Bug#936055: t/unthreaded.t test failing

[gregor herrmann]

Control: severity -1 serious

On Wed, 19 Feb 2020 14:16:52 +0100, Héctor Orón Martínez wrote:

>   This issue is now affecting GDB 9.1 autopkgtests and preventing it from migrating to testing.
>   https://ci.debian.net/data/autopkgtest/testing/amd64/liba/libapp-stacktrace-perl/4328197/log.gz
>   https://ci.debian.net/data/autopkgtest/testing/arm64/liba/libapp-stacktrace-perl/4314744/log.gz

Oh, one of the bugs which "hide":
https://ci.debian.net/packages/liba/libapp-stacktrace-perl/testing/amd64/
is all green, and after clicking on britney it turns red:
https://ci.debian.net/user/britney/jobs?package=libapp-stacktrace-perl&suite[]=testing&arch[]=amd64

Anyway, in the meantime it also FTBFS in unstable:

# [Thread debugging using libthread_db enabled]
# Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
# 0x00007f7b77cc1047 in select () from /lib/x86_64-linux-gnu/libc.so.6
# à|ÚU:101
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# [Inferior 1 (process 25884) detached]

#   Failed test at t/unthreaded.t line 55.
#                   '[Thread debugging using libthread_db enabled]
# Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
# 0x00007f7b77cc1047 in select () from /lib/x86_64-linux-gnu/libc.so.6
# à|ÚU:101
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# à|ÚU:106
# [Inferior 1 (process 25884) detached]
# '
#     doesn't match '(?^mx:
#                 (?:
#                     ^t/unthreaded\.t:\d+\n
#                 ){10}
#             )'
# Looks like you failed 1 test of 5.
t/unthreaded.t ............ 
1..5
not ok 1
ok 2 - Reaped pstack
ok 3 - exit(0)
ok 4 - No signals
ok 5 - No core dump
# Alive top 1582127930: 1 middle: 1
# Alive top 1582127931: 1 middle: 0
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/5 subtests 

Test Summary Report
-------------------
t/unthreaded.t          (Wstat: 256 Tests: 5 Failed: 1)
  Failed test:  1
  Non-zero exit status: 1
Files=4, Tests=6,  2 wallclock secs ( 0.03 usr  0.01 sys +  0.96 cusr  0.09 csys =  1.09 CPU)
Result: FAIL

(I _think_ that's yet another different error.)


In testing with gdb 8.3.1 the package still builds:

# [Thread debugging using libthread_db enabled]
# Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
# 0x00007f1b9eb77047 in select () from /lib/x86_64-linux-gnu/libc.so.6
# t/unthreaded.t:101
# t/unthreaded.t:106
# t/unthreaded.t:106
# t/unthreaded.t:106
# t/unthreaded.t:106
# t/unthreaded.t:106
# t/unthreaded.t:106
# t/unthreaded.t:106
# t/unthreaded.t:106
# t/unthreaded.t:106
# t/unthreaded.t:106
# [Inferior 1 (process 3207) detached]
t/unthreaded.t ............ 
1..5
ok 1
ok 2 - Reaped pstack
ok 3 - exit(0)
ok 4 - No signals
ok 5 - No core dump
# Alive top 1582128303: 1 middle: 1
# Alive top 1582128304: 1 middle: 0
ok



Cheers,
gregor


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