[Bug testsuite/34119] New: setup_dmesg_monitor() interferes with syscall tests

[mcermak at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=34119

            Bug ID: 34119
           Summary: setup_dmesg_monitor() interferes with syscall tests
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: testsuite
          Assignee: systemtap at sourceware dot org
          Reporter: mcermak at redhat dot com
  Target Milestone: ---

The setup_dmesg_monitor() seems to interfere with syscall tests making "every
other" testcase "UNTESTED":

el9 x86_64 # make installcheck RUNTESTFLAGS="nd_syscall.exp" CHECK_ONLY="accept
alarm chmod readwrite"

...

                === systemtap Summary ===

# of expected passes            5
# of untested testcases         4
/usr/local/bin/stap version 5.5/0.194, non-git sources
make[2]: Leaving directory '/tmp/systemtap-src/testsuite'
make[1]: Leaving directory '/tmp/systemtap-src/testsuite'
el9 x86_64 # grep -E "(PASS|UNTESTED):.*nd_syscall" testsuite/systemtap.log
PASS: 64-bit accept nd_syscall
UNTESTED: 64-bit alarm nd_syscall
PASS: 64-bit chmod nd_syscall
UNTESTED: 64-bit readwrite nd_syscall
PASS: 32-bit accept nd_syscall
UNTESTED: 32-bit alarm nd_syscall
PASS: 32-bit chmod nd_syscall
UNTESTED: 32-bit readwrite nd_syscall
el9 x86_64 #

...

[ ... now comment out setup_dmesg_monitor in testsuite/lib/systemtap.exp ... ]

...

el9 x86_64 # make installcheck RUNTESTFLAGS="nd_syscall.exp" CHECK_ONLY="accept
alarm chmod readwrite"

...

                === systemtap Summary ===

# of expected passes            9

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