MFH

Sponsored by: Rubicon Communications, LLC (netgate.com)

Add missing SysV IPC stats to linprocfs(4). Fixes 'ipcs -l',
and also helps Oracle.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25669

Fix bogomips calculation. Previously it was off by half. This was
verified under VMWare Fusion, comparing to what's reported under CentOS,
and by comparing numbers reported by linuxulator on T420 w

Fix bogomips calculation. Previously it was off by half. This was
verified under VMWare Fusion, comparing to what's reported under CentOS,
and by comparing numbers reported by linuxulator on T420 with a googled
up Linux cpuinfo (https://lkml.org/lkml/2011/11/29/116).

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20693

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Fix two typos in flag names in /proc/cpuinfo.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25695

Make linprocfs(5) report correct tty number in /proc/<PID>/stat.
Fixes sudo (sudo-1.8.21p2-3ubuntu1.2); previously would fail
with "sudo: no tty present and no askpass program specified".

Reviewed b

Make linprocfs(5) report correct tty number in /proc/<PID>/stat.
Fixes sudo (sudo-1.8.21p2-3ubuntu1.2); previously would fail
with "sudo: no tty present and no askpass program specified".

Reviewed by: kib, emaste
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25588

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Add /proc/sys/kernel/tainted to linprocfs(5). Helps LTP.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25556

Make linprocfs(5) create /proc/bus/pci/devices/, and linsysfs(5)
create /sys/class/power_supply/. This silences some warnings
from biology/linux-foldingathome.

Reported by: 0mp
MFC after: 2 weeks
S

Make linprocfs(5) create /proc/bus/pci/devices/, and linsysfs(5)
create /sys/class/power_supply/. This silences some warnings
from biology/linux-foldingathome.

Reported by: 0mp
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25557

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Make linprocfs(5) create the /proc/<PID>/task/ directores.
This is to silence down some Chromium assertions.

PR: kern/240991
Analyzed by: Alex S <iwtcex@gmail.com>
MFC after: 2 weeks
Sponsored by:

Make linprocfs(5) create the /proc/<PID>/task/ directores.
This is to silence down some Chromium assertions.

PR: kern/240991
Analyzed by: Alex S <iwtcex@gmail.com>
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D25256

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Merge ^/head r358466 through r358677.

fd: move vnodes out of filedesc into a dedicated structure

The new structure is copy-on-write. With the assumption that path lookups are
significantly more frequent than chdirs and chrooting this is

fd: move vnodes out of filedesc into a dedicated structure

The new structure is copy-on-write. With the assumption that path lookups are
significantly more frequent than chdirs and chrooting this is a win.

This provides stable root and jail root vnodes without the need to reference
them on lookup, which in turn means less work on globally shared structures.
Note this also happens to fix a bug where jail vnode was never referenced,
meaning subsequent access on lookup could run into use-after-free.

Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D23884

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linprocfs: Fix some bugs in the maps file implementation.

- Export the offset into the backing object, not the object size.
- Fix a bug where we would print the previous entry's "offset" when a
ma

linprocfs: Fix some bugs in the maps file implementation.

- Export the offset into the backing object, not the object size.
- Fix a bug where we would print the previous entry's "offset" when a
map_entry has no object.
- Try to identify shared mappings. Linux prints "s" when the mapping
"may be shared". This attempt is not perfect, for example, we print
"p" for anonymous memory that may be shared via
minherit(INHERIT_SHARE).

PR: 240992
Reviewed by: kib
MFC after: 1 week
MFC note: no OBJ_ANON in stable/12
Differential Revision: https://reviews.freebsd.org/D23062

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Make linprocfs(5) provide an empty /proc/modules. This should silence
some warnings.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

linprocfs: Make sure to report -1 as tty when we have no controlling tty.

When reporting a process' stats, we can't just provide the tty as an
unsigned long, as if we have no controlling tty, the tt

linprocfs: Make sure to report -1 as tty when we have no controlling tty.

When reporting a process' stats, we can't just provide the tty as an
unsigned long, as if we have no controlling tty, the tty would be NODEV, or
-1. Instaed, just special-case NODEV.

Submitted by: Juraj Lutter <otis@sk.FreeBSD.org>
MFC after: 1 week

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Merge ^/head r352764 through r353315.

Define macro VM_MAP_ENTRY_FOREACH for enumerating the entries in a vm_map.
In case the implementation ever changes from using a chain of next pointers,
then changing the macro definition will be nece

Define macro VM_MAP_ENTRY_FOREACH for enumerating the entries in a vm_map.
In case the implementation ever changes from using a chain of next pointers,
then changing the macro definition will be necessary, but changing all the
files that iterate over vm_map entries will not.

Drop a counter in vm_object.c that would have an effect only if the
vm_map entry count was wrong.

Discussed with: alc
Reviewed by: markj
Tested by: pho (earlier version)
Differential Revision: https://reviews.freebsd.org/D21882

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Merge ^/head r351732 through r352104.

Fix /proc/mounts for autofs(5) mounts.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

Make linprocfs(4) report Tgid, Linux ltrace(1) needs it.

MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

MFHead @347527

Sponsored by: The FreeBSD Foundation

Decode more CPU flags in cpuinfo.

Reviewed by: dchagin
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20145

Fix flags in cpuinfo.

Reviewed by: dchagin
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20139

Fix output of linprocfs stat entry

The Linux /proc/stat entry has grown over time

v2.5.41 <
user, nice, system, idle
v2.5.41
user, nice, system, idle, iowait, irq
v2.6.11
user, nice, sy

Fix output of linprocfs stat entry

The Linux /proc/stat entry has grown over time

v2.5.41 <
user, nice, system, idle
v2.5.41
user, nice, system, idle, iowait, irq
v2.6.11
user, nice, system, idle, iowait, irq, softirq, steal
v2.6.24
user, nice, system, idle, iowait, irq, softirq, steal, guest
v2.6.32 >
user, nice, system, idle, iowait, irq, softirq, steal, guest, guest_nice

Some applications (e.g. nodejs) depend on the correct number of entries
and will abort otherwise.

Fix is to print the correct number of entries based on the value of
osrelease set either in sysctl or the jail settings. Change is similar
to approach used by illumos.

Reviewed by: emaste, imp (mentor)
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D15858

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Add linprocfs support for min_free_kbytes

This adds linprocfs support for proc/sys/vm/min_free_kbytes which the
free program requires for correct operation. The approach mirrors the
approach used in

Add linprocfs support for min_free_kbytes

This adds linprocfs support for proc/sys/vm/min_free_kbytes which the
free program requires for correct operation. The approach mirrors the
approach used in illumos.

Reviewed by: imp (mentor), emaste
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D15563

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linprocfs: add TracerPid to /proc/pid/status.
Also fix the value of parent pid if the process is traced.

Submitted by: Yanko Yankulov <yanko.yankulov@gmail.com>
MFC after: 1 week

Add stubbed arm64 linuxulator /proc/cpuinfo handler

Sponsored by: Turing Robotic Industries