rseq00 test fails on 6.12.0-35.el10.x86_64

[adrianreber]

Hello @mihalicyn,

I see following error with both rseq tests on 6.12.0-35.el10.x86_64:

# ./zdtm.py run -t zdtm/static/rseq00
userns is supported
Checking feature get_rseq_conf
get_rseq_conf is supported
=== Run 1/1 ================ zdtm/static/rseq00
========================= Run zdtm/static/rseq00 in h ==========================
Start test
./rseq00 --pidfile=rseq00.pid --outfile=rseq00.out
make: *** [Makefile:492: rseq00.pid] Error 1
 Test zdtm/static/rseq00 FAIL at ['make', '--no-print-directory', '-C', 'zdtm/static', 'rseq00.pid'] 
Test output: ================================
19:36:17.812:    56: FAIL: rseq00.c:101: Failed to register rseq (errno = 22 (Invalid argument))
19:36:17.812:    55: ERR: test.c:320: Test exited unexpectedly with code 1
# rpm -q glibc
glibc-2.39-23.el10.x86_64

This is confusing. Any idea why the test fails to run the rseq syscall. This is CentOS Stream 10.

I see that rseq seems to be checkpointed and restored correctly for everything else according to the log. Just these two tests are failing.

[rst0git]

@adrianreber I was not able to replicate this error in CentOS Stream 10:

# uname -a
Linux kvm-04-guest27.lab.eng.rdu2.dc.redhat.com 6.12.0-35.el10.x86_64 #1 SMP PREEMPT_DYNAMIC Fri Dec 13 19:20:16 UTC 2024 x86_64 GNU/Linux

# rpm -q glibc
glibc-2.39-23.el10.x86_64

# python3 ./zdtm.py run -t zdtm/static/rseq00
userns is supported
Checking feature get_rseq_conf
get_rseq_conf is supported
=== Run 1/1 ================ zdtm/static/rseq00
========================= Run zdtm/static/rseq00 in h ==========================
Start test
./rseq00 --pidfile=rseq00.pid --outfile=rseq00.out
Run criu dump
Run criu restore
Send the 15 signal to  56
Wait for zdtm/static/rseq00(56) to die for 0.100000
Removing dump/zdtm/static/rseq00/56
========================= Test zdtm/static/rseq00 PASS =========================

[adrianreber]

Thanks. I was using a 3.19 checkout. With the corresponding patch from criu-dev it works.