https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=193593
Bug ID: 193593
Summary: [dtrace] root@test3:/home/adrian/git/norse/dsniff #
dtrace -n 'pid$target:libc*:flockfile:entry {
@[execname, ustack()] = count(); } END { trunc(@, 10);
}' -p 44592 dtrace: description
'pid$target:libc*:flockfile:entry ' matched 2 probes
Segmentation faul
Product: Base System
Version: 11.0-CURRENT
Hardware: Any
OS: Any
Status: Needs Triage
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: adr...@freebsd.org
When dtrac'ing a process that does a lot of fprintf()s:
root@test3:/home/adrian/git/norse/dsniff # dtrace -n
'pid$target:libc*:flockfile:entry { @[execname, ustack()] = count(); } END {
trunc(@, 10); }' -p 44592
dtrace: description 'pid$target:libc*:flockfile:entry ' matched 2 probes
Segmentation fault (core dumped)
.. and the original process just vanishes.
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