How to debug test failures [and: force_close_record_session issue]?

Open

#3,024 opened on Dec 28, 2021 7 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 4/5
Estimated time: 3-5 days
Newbie friendliness: 25/100

Issue type: Bug
Clarity: Needs clarification
Activity status: Stale
Tech stack: cpp, linux
Domain: devtools, operating-systems, testing-qa

Research direction

Start by reproducing fd_cleanup-no-syscallbuf with the documented ctest -VV -R command and inspect src/test/basic_test.run and src/test/util.sh, especially the recording path around the reported timeout. Then trace how force_close_record_session is reached during recording and use the available rr replay details to identify the failure. Done means documenting the cause and a reproducible debugging path or a clearly scoped fix.

Written by the indexing model from the issue text.

Description

Given the following test result - how can I actually debug rr and check what is happening in force_close_record_session?

When running the replay mentioned a plain continue runs till the expected result - so this seems to be only "test case related" (the breakpoint that is set and may doesn't have a running command in)? In this case

#/home/rr_test/rr/_build> ctest -VV -R fd_cleanup-no-syscallbuf
UpdateCTestConfiguration  from :/home/rr_test/rr/_build/DartConfiguration.tcl
UpdateCTestConfiguration  from :/home/rr_test/rr/_build/DartConfiguration.tcl
Test project /home/rr_test/rr/_build
Constructing a list of tests
Done constructing a list of tests
Checking test dependency graph...
Checking test dependency graph end
test 171
    Start 171: fd_cleanup-no-syscallbuf

171: Test command: /bin/bash "source_dir/src/test/basic_test.run" "fd_cleanup" "-n" "bin_dir" "120"
171: Test timeout computed to be: 9.99988e+06
171: source_dir/src/test/util.sh: line 245: 23964 Aborted                 _RR_TRACE_DIR="$workdir" test-monitor $TIMEOUT record.err $RR_EXE $GLOBAL_OPTIONS record $LIB_ARG $RECORD_ARGS "$exe" $exeargs > record.out 2> record.err
171: Test 'fd_cleanup' FAILED: : error during recording:
171: --------------------------------------------------
171: timeout 120 exceeded
171: ====== /proc/23965/status
171: Name:      rr
171: Umask:     0002
171: State:     S (sleeping)
171: Tgid:      23965
171: Ngid:      0
171: Pid:       23965
171: PPid:      23964
171: TracerPid: 0
171: Uid:       1110    1110    1110    1110
171: Gid:       613     613     613     613
171: FDSize:    64
171: Groups:    613 615 617 12430
171: VmPeak:      408404 kB
171: VmSize:      408260 kB
171: VmLck:            0 kB
171: VmPin:            0 kB
171: VmHWM:        18216 kB
171: VmRSS:        18216 kB
171: RssAnon:      11144 kB
171: RssFile:       7072 kB
171: RssShmem:         0 kB
171: VmData:      376540 kB
171: VmStk:          136 kB
171: VmExe:         7696 kB
171: VmLib:         5324 kB
171: VmPTE:          128 kB
171: VmSwap:           0 kB
171: Threads:   6
171: SigQ:      0/31194
171: SigPnd:    0000000000000000
171: ShdPnd:    0000000000000000
171: SigBlk:    0000000000000000
171: SigIgn:    0000000000000027
171: SigCgt:    0000000180006400
171: CapInh:    0000000000000000
171: CapPrm:    0000000000000000
171: CapEff:    0000000000000000
171: CapBnd:    0000001fffffffff
171: CapAmb:    0000000000000000
171: NoNewPrivs:        0
171: Seccomp:   0
171: Speculation_Store_Bypass:  thread vulnerable
171: Cpus_allowed:      1
171: Cpus_allowed_list: 0
171: Mems_allowed:      00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
171: Mems_allowed_list: 0
171: voluntary_ctxt_switches:   372
171: nonvoluntary_ctxt_switches:        5
171: ====== /proc/23965/stack
171: ====== /proc/23966/status
171: Name:      compress events
171: Umask:     0002
171: State:     S (sleeping)
171: Tgid:      23965
171: Ngid:      0
171: Pid:       23966
171: PPid:      23964
171: TracerPid: 0
171: Uid:       1110    1110    1110    1110
171: Gid:       613     613     613     613
171: FDSize:    64
171: Groups:    613 615 617 12430
171: VmPeak:      408404 kB
171: VmSize:      408260 kB
171: VmLck:            0 kB
171: VmPin:            0 kB
171: VmHWM:        18216 kB
171: VmRSS:        18216 kB
171: RssAnon:      11144 kB
171: RssFile:       7072 kB
171: RssShmem:         0 kB
171: VmData:      376540 kB
171: VmStk:          136 kB
171: VmExe:         7696 kB
171: VmLib:         5324 kB
171: VmPTE:          128 kB
171: VmSwap:           0 kB
171: Threads:   6
171: SigQ:      0/31194
171: SigPnd:    0000000000000000
171: ShdPnd:    0000000000000000
171: SigBlk:    0000000000000000
171: SigIgn:    0000000000000027
171: SigCgt:    0000000180006400
171: CapInh:    0000000000000000
171: CapPrm:    0000000000000000
171: CapEff:    0000000000000000
171: CapBnd:    0000001fffffffff
171: CapAmb:    0000000000000000
171: NoNewPrivs:        0
171: Seccomp:   0
171: Speculation_Store_Bypass:  thread vulnerable
171: Cpus_allowed:      3
171: Cpus_allowed_list: 0-1
171: Mems_allowed:      00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
171: Mems_allowed_list: 0
171: voluntary_ctxt_switches:   4
171: nonvoluntary_ctxt_switches:        0
171: ====== /proc/23966/stack
171: ====== /proc/23967/status
171: Name:      compress data
171: Umask:     0002
171: State:     S (sleeping)
171: Tgid:      23965
171: Ngid:      0
171: Pid:       23967
171: PPid:      23964
171: TracerPid: 0
171: Uid:       1110    1110    1110    1110
171: Gid:       613     613     613     613
171: FDSize:    64
171: Groups:    613 615 617 12430
171: VmPeak:      408404 kB
171: VmSize:      408260 kB
171: VmLck:            0 kB
171: VmPin:            0 kB
171: VmHWM:        18216 kB
171: VmRSS:        18216 kB
171: RssAnon:      11144 kB
171: RssFile:       7072 kB
171: RssShmem:         0 kB
171: VmData:      376540 kB
171: VmStk:          136 kB
171: VmExe:         7696 kB
171: VmLib:         5324 kB
171: VmPTE:          128 kB
171: VmSwap:           0 kB
171: Threads:   6
171: SigQ:      0/31194
171: SigPnd:    0000000000000000
171: ShdPnd:    0000000000000000
171: SigBlk:    0000000000000000
171: SigIgn:    0000000000000027
171: SigCgt:    0000000180006400
171: CapInh:    0000000000000000
171: CapPrm:    0000000000000000
171: CapEff:    0000000000000000
171: CapBnd:    0000001fffffffff
171: CapAmb:    0000000000000000
171: NoNewPrivs:        0
171: Seccomp:   0
171: Speculation_Store_Bypass:  thread vulnerable
171: Cpus_allowed:      3
171: Cpus_allowed_list: 0-1
171: Mems_allowed:      00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
171: Mems_allowed_list: 0
171: voluntary_ctxt_switches:   9
171: nonvoluntary_ctxt_switches:        0
171: ====== /proc/23967/stack
171: ====== /proc/23968/status
171: Name:      compress data
171: Umask:     0002
171: State:     S (sleeping)
171: Tgid:      23965
171: Ngid:      0
171: Pid:       23968
171: PPid:      23964
171: TracerPid: 0
171: Uid:       1110    1110    1110    1110
171: Gid:       613     613     613     613
171: FDSize:    64
171: Groups:    613 615 617 12430
171: VmPeak:      408404 kB
171: VmSize:      408260 kB
171: VmLck:            0 kB
171: VmPin:            0 kB
171: VmHWM:        18216 kB
171: VmRSS:        18216 kB
171: RssAnon:      11144 kB
171: RssFile:       7072 kB
171: RssShmem:         0 kB
171: VmData:      376540 kB
171: VmStk:          136 kB
171: VmExe:         7696 kB
171: VmLib:         5324 kB
171: VmPTE:          128 kB
171: VmSwap:           0 kB
171: Threads:   6
171: SigQ:      0/31194
171: SigPnd:    0000000000000000
171: ShdPnd:    0000000000000000
171: SigBlk:    0000000000000000
171: SigIgn:    0000000000000027
171: SigCgt:    0000000180006400
171: CapInh:    0000000000000000
171: CapPrm:    0000000000000000
171: CapEff:    0000000000000000
171: CapBnd:    0000001fffffffff
171: CapAmb:    0000000000000000
171: NoNewPrivs:        0
171: Seccomp:   0
171: Speculation_Store_Bypass:  thread vulnerable
171: Cpus_allowed:      3
171: Cpus_allowed_list: 0-1
171: Mems_allowed:      00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
171: Mems_allowed_list: 0
171: voluntary_ctxt_switches:   5
171: nonvoluntary_ctxt_switches:        0
171: ====== /proc/23968/stack
171: ====== /proc/23969/status
171: Name:      compress mmaps
171: Umask:     0002
171: State:     S (sleeping)
171: Tgid:      23965
171: Ngid:      0
171: Pid:       23969
171: PPid:      23964
171: TracerPid: 0
171: Uid:       1110    1110    1110    1110
171: Gid:       613     613     613     613
171: FDSize:    64
171: Groups:    613 615 617 12430
171: VmPeak:      408404 kB
171: VmSize:      408260 kB
171: VmLck:            0 kB
171: VmPin:            0 kB
171: VmHWM:        18216 kB
171: VmRSS:        18216 kB
171: RssAnon:      11144 kB
171: RssFile:       7072 kB
171: RssShmem:         0 kB
171: VmData:      376540 kB
171: VmStk:          136 kB
171: VmExe:         7696 kB
171: VmLib:         5324 kB
171: VmPTE:          128 kB
171: VmSwap:           0 kB
171: Threads:   6
171: SigQ:      0/31194
171: SigPnd:    0000000000000000
171: ShdPnd:    0000000000000000
171: SigBlk:    0000000000000000
171: SigIgn:    0000000000000027
171: SigCgt:    0000000180006400
171: CapInh:    0000000000000000
171: CapPrm:    0000000000000000
171: CapEff:    0000000000000000
171: CapBnd:    0000001fffffffff
171: CapAmb:    0000000000000000
171: NoNewPrivs:        0
171: Seccomp:   0
171: Speculation_Store_Bypass:  thread vulnerable
171: Cpus_allowed:      3
171: Cpus_allowed_list: 0-1
171: Mems_allowed:      00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
171: Mems_allowed_list: 0
171: voluntary_ctxt_switches:   5
171: nonvoluntary_ctxt_switches:        0
171: ====== /proc/23969/stack
171: ====== /proc/23970/status
171: Name:      compress tasks
171: Umask:     0002
171: State:     S (sleeping)
171: Tgid:      23965
171: Ngid:      0
171: Pid:       23970
171: PPid:      23964
171: TracerPid: 0
171: Uid:       1110    1110    1110    1110
171: Gid:       613     613     613     613
171: FDSize:    64
171: Groups:    613 615 617 12430
171: VmPeak:      408404 kB
171: VmSize:      408260 kB
171: VmLck:            0 kB
171: VmPin:            0 kB
171: VmHWM:        18216 kB
171: VmRSS:        18216 kB
171: RssAnon:      11144 kB
171: RssFile:       7072 kB
171: RssShmem:         0 kB
171: VmData:      376540 kB
171: VmStk:          136 kB
171: VmExe:         7696 kB
171: VmLib:         5324 kB
171: VmPTE:          128 kB
171: VmSwap:           0 kB
171: Threads:   6
171: SigQ:      0/31194
171: SigPnd:    0000000000000000
171: ShdPnd:    0000000000000000
171: SigBlk:    0000000000000000
171: SigIgn:    0000000000000027
171: SigCgt:    0000000180006400
171: CapInh:    0000000000000000
171: CapPrm:    0000000000000000
171: CapEff:    0000000000000000
171: CapBnd:    0000001fffffffff
171: CapAmb:    0000000000000000
171: NoNewPrivs:        0
171: Seccomp:   0
171: Speculation_Store_Bypass:  thread vulnerable
171: Cpus_allowed:      3
171: Cpus_allowed_list: 0-1
171: Mems_allowed:      00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
171: Mems_allowed_list: 0
171: voluntary_ctxt_switches:   4
171: nonvoluntary_ctxt_switches:        0
171: ====== /proc/23970/stack
171: ====== /proc/23971/status
171: Name:      fd_cleanup-oasc
171: State:     Z (zombie)
171: Tgid:      23971
171: Ngid:      0
171: Pid:       23971
171: PPid:      23965
171: TracerPid: 23965
171: Uid:       1110    1110    1110    1110
171: Gid:       613     613     613     613
171: FDSize:    0
171: Groups:    613 615 617 12430
171: Threads:   2
171: SigQ:      0/31194
171: SigPnd:    0000000000000000
171: ShdPnd:    0000000000000000
171: SigBlk:    0000000000000000
171: SigIgn:    0000000000000000
171: SigCgt:    0000000180000000
171: CapInh:    0000000000000000
171: CapPrm:    0000000000000000
171: CapEff:    0000000000000000
171: CapBnd:    0000001fffffffff
171: CapAmb:    0000000000000000
171: NoNewPrivs:        1
171: Seccomp:   2
171: Speculation_Store_Bypass:  thread force mitigated
171: Cpus_allowed:      1
171: Cpus_allowed_list: 0
171: Mems_allowed:      00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
171: Mems_allowed_list: 0
171: voluntary_ctxt_switches:   334
171: nonvoluntary_ctxt_switches:        1
171: ====== /proc/23971/stack
171: ====== /proc/23972/status
171: Name:      fd_cleanup-oasc
171: Umask:     0002
171: State:     t (tracing stop)
171: Tgid:      23971
171: Ngid:      0
171: Pid:       23972
171: PPid:      23965
171: TracerPid: 23965
171: Uid:       1110    1110    1110    1110
171: Gid:       613     613     613     613
171: FDSize:    1024
171: Groups:    613 615 617 12430
171: VmPeak:       25084 kB
171: VmSize:       25084 kB
171: VmLck:            0 kB
171: VmPin:            0 kB
171: VmHWM:          772 kB
171: VmRSS:          772 kB
171: RssAnon:        280 kB
171: RssFile:        492 kB
171: RssShmem:         0 kB
171: VmData:       12660 kB
171: VmStk:            0 kB
171: VmExe:            4 kB
171: VmLib:         2120 kB
171: VmPTE:           68 kB
171: VmSwap:           0 kB
171: Threads:   2
171: SigQ:      0/31194
171: SigPnd:    0000000000000000
171: ShdPnd:    0000000000000000
171: SigBlk:    0000000000000000
171: SigIgn:    0000000000000000
171: SigCgt:    0000000180000000
171: CapInh:    0000000000000000
171: CapPrm:    0000000000000000
171: CapEff:    0000000000000000
171: CapBnd:    0000001fffffffff
171: CapAmb:    0000000000000000
171: NoNewPrivs:        1
171: Seccomp:   2
171: Speculation_Store_Bypass:  thread force mitigated
171: Cpus_allowed:      1
171: Cpus_allowed_list: 0
171: Mems_allowed:      00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000001
171: Mems_allowed_list: 0
171: voluntary_ctxt_switches:   18
171: nonvoluntary_ctxt_switches:        0
171: ====== /proc/23972/stack
171: ====== gdb -p 23965 -ex 'set confirm off' -ex 'set height 0' -ex 'thread apply all bt' -ex q </dev/null 2>&1
171: GNU gdb (GDB) 11.1
171: Copyright (C) 2021 Free Software Foundation, Inc.
171: License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
171: This is free software: you are free to change and redistribute it.
171: There is NO WARRANTY, to the extent permitted by law.
171: Type "show copying" and "show warranty" for details.
171: This GDB was configured as "x86_64-pc-linux-gnu".
171: Type "show configuration" for configuration details.
171: For bug reporting instructions, please see:
171: <https://www.gnu.org/software/gdb/bugs/>.
171: Find the GDB manual and other documentation resources online at:
171:     <http://www.gnu.org/software/gdb/documentation/>.
171:
171: For help, type "help".
171: Type "apropos word" to search for commands related to "word".
171: Attaching to process 23965
171: [New LWP 23966]
171: [New LWP 23967]
171: [New LWP 23968]
171: [New LWP 23969]
171: [New LWP 23970]
171: [Thread debugging using libthread_db enabled]
171: Using host libthread_db library "/lib64/libthread_db.so.1".
171: 0x00007f049b8365b0 in waitid () from /lib64/libc.so.6
171:
171: Thread 6 (Thread 0x7f049906a700 (LWP 23970) "compress tasks"):
171: #0  0x00007f049c3dda35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
171: #1  0x000000000076a64f in rr::CompressedWriter::compression_thread (this=0x25cf060) at /home/rr_test/rr/src/CompressedWriter.cc:212
171: #2  0x00000000007699b6 in rr::CompressedWriter::compression_thread_callback (p=0x25cf060) at /home/rr_test/rr/src/CompressedWriter.cc:28
171: #3  0x00007f049c3d9ea5 in start_thread () from /lib64/libpthread.so.0
171: #4  0x00007f049b86f96d in clone () from /lib64/libc.so.6
171:
171: Thread 5 (Thread 0x7f049986b700 (LWP 23969) "compress mmaps"):
171: #0  0x00007f049c3dda35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
171: #1  0x000000000076a64f in rr::CompressedWriter::compression_thread (this=0x25ced10) at /home/rr_test/rr/src/CompressedWriter.cc:212
171: #2  0x00000000007699b6 in rr::CompressedWriter::compression_thread_callback (p=0x25ced10) at /home/rr_test/rr/src/CompressedWriter.cc:28
171: #3  0x00007f049c3d9ea5 in start_thread () from /lib64/libpthread.so.0
171: #4  0x00007f049b86f96d in clone () from /lib64/libc.so.6
171:
171: Thread 4 (Thread 0x7f049a06c700 (LWP 23968) "compress data"):
171: #0  0x00007f049c3dda35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
171: #1  0x000000000076a64f in rr::CompressedWriter::compression_thread (this=0x25ce760) at /home/rr_test/rr/src/CompressedWriter.cc:212
171: #2  0x00000000007699b6 in rr::CompressedWriter::compression_thread_callback (p=0x25ce760) at /home/rr_test/rr/src/CompressedWriter.cc:28
171: #3  0x00007f049c3d9ea5 in start_thread () from /lib64/libpthread.so.0
171: #4  0x00007f049b86f96d in clone () from /lib64/libc.so.6
171:
171: Thread 3 (Thread 0x7f049a86d700 (LWP 23967) "compress data"):
171: #0  0x00007f049c3dda35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
171: #1  0x000000000076a64f in rr::CompressedWriter::compression_thread (this=0x25ce760) at /home/rr_test/rr/src/CompressedWriter.cc:212
171: #2  0x00000000007699b6 in rr::CompressedWriter::compression_thread_callback (p=0x25ce760) at /home/rr_test/rr/src/CompressedWriter.cc:28
171: #3  0x00007f049c3d9ea5 in start_thread () from /lib64/libpthread.so.0
171: #4  0x00007f049b86f96d in clone () from /lib64/libc.so.6
171:
171: Thread 2 (Thread 0x7f049b46f700 (LWP 23966) "compress events"):
171: #0  0x00007f049c3dda35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
171: #1  0x000000000076a64f in rr::CompressedWriter::compression_thread (this=0x25ce3c0) at /home/rr_test/rr/src/CompressedWriter.cc:212
171: #2  0x00000000007699b6 in rr::CompressedWriter::compression_thread_callback (p=0x25ce3c0) at /home/rr_test/rr/src/CompressedWriter.cc:28
171: #3  0x00007f049c3d9ea5 in start_thread () from /lib64/libpthread.so.0
171: #4  0x00007f049b86f96d in clone () from /lib64/libc.so.6
171:
171: Thread 1 (Thread 0x7f049d0b4780 (LWP 23965) "rr"):
171: #0  0x00007f049b8365b0 in waitid () from /lib64/libc.so.6
171: #1  0x0000000000938e82 in rr::Task::wait_exit (this=0x25cfe40) at /home/rr_test/rr/src/Task.cc:144
171: #2  0x00000000009392c1 in rr::Task::proceed_to_exit (this=0x25cfe40, wait=true) at /home/rr_test/rr/src/Task.cc:182
171: #3  0x0000000000833997 in rr::handle_ptrace_exit_event (t=0x25cfe40) at /home/rr_test/rr/src/RecordSession.cc:240
171: #4  0x000000000083ce96 in rr::RecordSession::record_step (this=0x25cde80) at /home/rr_test/rr/src/RecordSession.cc:2380
171: #5  0x00000000008305de in rr::record (args=std::vector of length 1, capacity 8 = {...}, flags=...) at /home/rr_test/rr/src/RecordCommand.cc:662
171: #6  0x000000000083114e in rr::RecordCommand::run (this=0xd87130 <rr::RecordCommand::singleton>, args=std::vector of length 1, capacity 8 = {...}) at /home/rr_test/rr/src/RecordCommand.cc:812
171: #7  0x000000000099515f in main (argc=8, argv=0x7ffd12a5df78) at /home/rr_test/rr/src/main.cc:268
171: Detaching from program: /home/rr_test/rr/_build/bin/rr, process 23965
171: [Inferior 1 (process 23965) detached]
171: rr itself crashed (SIGSEGV). This shouldn't happen!
171: eight 0' -ex 'b rr::force_close_record_session' -ex 'p rr::force_close_record_session()' -ex detach -ex q </dev/null 2>&1
171: GNU gdb (GDB) 11.1
171: Copyright (C) 2021 Free Software Foundation, Inc.
171: License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
171: This is free software: you are free to change and redistribute it.
171: There is NO WARRANTY, to the extent permitted by law.
171: Type "show copying" and "show warranty" for details.
171: This GDB was configured as "x86_64-pc-linux-gnu".
171: Type "show configuration" for configuration details.
171: For bug reporting instructions, please see:
171: <https://www.gnu.org/software/gdb/bugs/>.
171: Find the GDB manual and other documentation resources online at:
171:     <http://www.gnu.org/software/gdb/documentation/>.
171:
171: For help, type "help".
171: Type "apropos word" to search for commands related to "word".
171: Attaching to process 23965
171: [New LWP 23966]
171: [New LWP 23967]
171: [New LWP 23968]
171: [New LWP 23969]
171: [New LWP 23970]
171: [Thread debugging using libthread_db enabled]
171: Using host libthread_db library "/lib64/libthread_db.so.1".
171: 0x00007f049b8365b0 in waitid () from /lib64/libc.so.6
171: Breakpoint 1 at 0x82feba: file /home/rr_test/rr/src/RecordCommand.cc, line 584.
171:
171: Thread 1 "rr" hit Breakpoint 1, rr::force_close_record_session () at /home/rr_test/rr/src/RecordCommand.cc:584
171: 584          if (static_session) {
171: The program being debugged stopped while in a function called from GDB.
171: Evaluation of the expression containing the function
171: (rr::force_close_record_session()) will be abandoned.
171: When the function is done executing, GDB will silently stop.
171: Detaching from program: /home/rr_test/rr/_build/bin/rr, process 23965
171: [Inferior 1 (process 23965) detached]
171: --------------------------------------------------
171: record.out:
171: --------------------------------------------------
171: EXIT-SUCCESS
171: --------------------------------------------------
171: Test fd_cleanup failed, leaving behind /tmp/rr-test-fd_cleanup-oascXRGlL
171: To replay the failed test, run
171:   _RR_TRACE_DIR=/tmp/rr-test-fd_cleanup-oascXRGlL rr replay
1/1 Test #171: fd_cleanup-no-syscallbuf .........***Failed  Error regular expression found in output. Regex=[FAILED]124.57 sec

0% tests passed, 1 tests failed out of 1

Total Test time (real) = 124.62 sec

The following tests FAILED:
        171 - fd_cleanup-no-syscallbuf (Failed)
Errors while running CTest

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