Add per-process flag to disable logsigexit

I added a third value for kern.logsigexit to mean 'auto' as an abundance
of caution, but I don't know how much it matters -- that can be easily
consolidate

Add per-process flag to disable logsigexit

I added a third value for kern.logsigexit to mean 'auto' as an abundance
of caution, but I don't know how much it matters -- that can be easily
consolidated back to boolean-ish.

This is primarily targeted towards people running test suites under CI
(e.g. buildbot, jenkins). Oftentimes tests entail segfaults that are
expected, and logs get spammed -- this can be particularly high volume
depending on the application. Per-process control of this behavior is
desirable because they may still want to be logging legitimate
segfaults, so the system-wide atomic bomb kern.logsigexit=0 is not a
great option.

This adds a process flag to disable it, controllable via
procctl(2)/proccontrol(1); the latter knows it as "sigexitlog" due to
its length, but it's referred to almost everywhere else as
"sigexit_log."

Reviewed by: kib (earlier version), pstef
Differential Revision: https://reviews.freebsd.org/D21903

show more ...

procctl.2: Editing pass

- Add some missing .Pp macros after the end of literal blocks and some
lists to ensure there is a blank line before the following text.

- Use an indent of Ds for nested li

procctl.2: Editing pass

- Add some missing .Pp macros after the end of literal blocks and some
lists to ensure there is a blank line before the following text.

- Use an indent of Ds for nested lists to reduce excessive indentation and
make the bodies of the nested list items easier to read.

- Various and sundry rewordings and clarifications.

Reviewed by: kib, emaste
Differential Revision: https://reviews.freebsd.org/D47782

show more ...

procctl(2): Clarify the ESRCH error code case

Approved by: kib
Differential Revision: https://reviews.freebsd.org/D47010

manuals: Misc macro typos

These were reported by `mandoc -T lint` as
ERROR: skipping unknown macro
When these pages were rendered with `man`, the "unknown macro" meant
that the entire line was o

manuals: Misc macro typos

These were reported by `mandoc -T lint` as
ERROR: skipping unknown macro
When these pages were rendered with `man`, the "unknown macro" meant
that the entire line was omitted from the output.

Obvious typos in:
lib/libsys/swapon.2
lib/libsys/procctl.2
share/man/man9/firmware.9

lib/libcasper/services/cap_net/cap_net.3: 'mode' describes a function
argument.

lib/libsys/statfs.2: there's no .Tm command ("trademark?"), and
.Tn ("tradename") is deprecated, so remove the macro entirely.

usr.sbin/mfiutil/mfiutil.8: man was interpreting '/dev/' as a macro
(which it didn't recognize).

share/man/man4/qat.4: same issue as above, but with '0'. In this case,
given the context of the previous line, rewriting as "Value '0'"
seemed more appropriate.

usr.sbin/mlx5tool/mlx5tool.8: typo in .Xr

Signed-off-by: Graham Percival <gperciva@tarsnap.com>
Sponsored by: Tarsnap Backup Inc.
Reviewed by: concussious, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/1417

show more ...

manuals: Fix errors in .2 pages

These were reported by `mandoc -T lint ...` as errors.

fhlink.2, fhreadlink.2: remove unneeded block closing.

getfh.2, procctl.2: add necessary block closing.

ptra

manuals: Fix errors in .2 pages

These were reported by `mandoc -T lint ...` as errors.

fhlink.2, fhreadlink.2: remove unneeded block closing.

getfh.2, procctl.2: add necessary block closing.

ptrace.2: -width only takes one argument.

swapon.2: <sys/vmparam.h> and <vm/swap_pager.h> weren't being displayed,
because .It is for a list item whereas .In is for included files.
Also, we want a blank line between <sys/ > headers and the other
one.

Signed-off-by: Graham Percival <gperciva@tarsnap.com>
PR: 281597
Reviewed by: mhorne
Sponsored by: Tarsnap Backup Inc.

show more ...

procctl(2) actually appeared in 9.3

libsys: relocate implementations and manpages

Remove core system call implementations and documentation to lib/libsys
and lib/libsys/<arch> from lib/libc/sys and lib/libc/<arch>/<sys>.
Update paths

libsys: relocate implementations and manpages

Remove core system call implementations and documentation to lib/libsys
and lib/libsys/<arch> from lib/libc/sys and lib/libc/<arch>/<sys>.
Update paths to allow libc to find them in their new home.

Reviewed by: kib, emaste, imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/908

show more ...