rr tests failing on Devuan Chimera

[Brian Tague]

Hi,

I believe I've installed rr properly on my system. I don't recall the exact output, but I don't recall any errors.

When running the tests as root from the /opt/obj (build ?) directory via: make -j$(nproc) test

I get the following results:

 root@rothbard:/opt/obj# make -j$(nproc) test
Running tests...
Test project /opt/obj
          Start    1: check_environment
   1/2853 Test    #1: check_environment .................................................   Passed    0.01 sec
          Start    2: 64bit_child
   2/2853 Test    #2: 64bit_child .......................................................***Failed  Error regular expression found in output. Regex=[FAILED] 19.15 sec
          Start    3: 64bit_child-no-syscallbuf
   3/2853 Test    #3: 64bit_child-no-syscallbuf .........................................***Failed  Error regular expression found in output. Regex=[FAILED] 23.09 sec
          Start    4: _llseek
   4/2853 Test    #4: _llseek ...........................................................***Failed  Error regular expression found in output. Regex=[FAILED] 22.09 sec
          Start    5: _llseek-no-syscallbuf
   5/2853 Test    #5: _llseek-no-syscallbuf .............................................***Failed  Error regular expression found in output. Regex=[FAILED] 21.09 sec

I eventually kill the process because all tests fail.

How might I debug these errors? My apologies if any of my questions are naive or if I've left out useful information.

-Brian

[Robert O'Callahan]

What do you get if you run e.g. "rr record /bin/ls"?

Rob

--

Su ot deraeppa sah dna Rehtaf eht htiw saw hcihw, efil lanrete eht uoy ot mialcorp ew dna, ti ot yfitset dna ti nees evah ew; deraeppa efil eht. Efil fo Drow eht gninrecnoc mialcorp ew siht - dehcuot evah sdnah ruo dna ta dekool evah ew hcihw, seye ruo htiw nees evah ew hcihw, draeh evah ew hcihw, gninnigeb eht morf saw hcihw taht.

[Brian Tague]

Hi Robert,

Apologies for the delay.

Here is my output of your "rr record /bin/ls" test

btague@rothbard:~$ rr record /bin/ls
rr: Saving execution to trace directory `/home/btague/.local/share/rr/ls-0'.
[FATAL src/PerfCounters.cc:325:check_for_ioc_period_bug() errno: EINVAL] ioctl(PERF_EVENT_IOC_PERIOD) failed
=== Start rr backtrace:
rr(_ZN2rr13dump_rr_stackEv+0x2e)[0x555b9355c3fe]
rr(_ZN2rr15notifying_abortEv+0xe)[0x555b9355c43e]
rr(+0x1e4780)[0x555b9357b780]
rr(_ZN2rr12PerfCounters5resetEl+0x6aa)[0x555b9347086a]
rr(_ZN2rr4Task16resume_executionENS_13ResumeRequestENS_11WaitRequestENS_12TicksRequestEi+0xc5)[0x555b93532be5]
rr(_ZN2rr13RecordSession13task_continueERKNS0_9StepStateE+0x292)[0x555b9347bf62]
rr(_ZN2rr13RecordSession11record_stepEv+0x30d)[0x555b934853bd]
rr(_ZN2rr13RecordCommand3runERSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS7_EE+0xf84)[0x555b934786f4]
rr(main+0x1b8)[0x555b933e3698]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea)[0x7fdb6203ed0a]
rr(_start+0x2a)[0x555b933e384a]
=== End rr backtrace
Aborted
btague@rothbard:~$ sudo sysctl kernel.perf_event_paranoid=1
[sudo] password for btague:
kernel.perf_event_paranoid = 1
btague@rothbard:~$ rr record /bin/ls
rr: Saving execution to trace directory `/home/btague/.local/share/rr/ls-1'.
[FATAL src/PerfCounters.cc:325:check_for_ioc_period_bug() errno: EINVAL] ioctl(PERF_EVENT_IOC_PERIOD) failed
=== Start rr backtrace:
rr(_ZN2rr13dump_rr_stackEv+0x2e)[0x5580620a23fe]
rr(_ZN2rr15notifying_abortEv+0xe)[0x5580620a243e]
rr(+0x1e4780)[0x5580620c1780]
rr(_ZN2rr12PerfCounters5resetEl+0x6aa)[0x558061fb686a]
rr(_ZN2rr4Task16resume_executionENS_13ResumeRequestENS_11WaitRequestENS_12TicksRequestEi+0xc5)[0x558062078be5]
rr(_ZN2rr13RecordSession13task_continueERKNS0_9StepStateE+0x292)[0x558061fc1f62]
rr(_ZN2rr13RecordSession11record_stepEv+0x30d)[0x558061fcb3bd]
rr(_ZN2rr13RecordCommand3runERSt6vectorINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEESaIS7_EE+0xf84)[0x558061fbe6f4]
rr(main+0x1b8)[0x558061f29698]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xea)[0x7f78ef2c1d0a]
rr(_start+0x2a)[0x558061f2984a]
=== End rr backtrace
Aborted

[Robert O'Callahan]

What kernel version is this?

Rob

[Brian Tague]

Hi Robert,

Happy New Year. My apologies for the delay.

uname -r shows:

5.10.0-20-amd64

[Brian Tague]

Hi Robert,

I wanted to provide an update. I believe this is now working for me.

Here is my output from rr record /bin/ls:

rr record /bin/ls

[sudo] password for btague:
kernel.perf_event_paranoid = 1

rr: Saving execution to trace directory `/home/btague/.local/share/rr/ls-5'.
Desktop  Documents  Downloads  Music  Pictures  Public  Templates  Videos

ls -al /home/btague/.local/share/rr/ls-5
total 52
drwxr-x--- 2 btague btague  4096 Jan 30 05:41 .
drwx------ 8 btague btague  4096 Jan 30 05:41 ..
-rw------- 1 btague btague     0 Jan 30 05:41 cloned_data_7299_1
-r-------- 1 btague btague 23555 Jan 30 05:41 data
-r-------- 1 btague btague  7817 Jan 30 05:41 events
-r-------- 1 btague btague  1254 Jan 30 05:41 mmaps
-r-------- 1 btague btague   109 Jan 30 05:41 tasks
-rw------- 1 btague btague   751 Jan 30 05:41 version

[Robert O'Callahan]

Mysterious. Anyway, glad it's working.