In commit r345845, a portion of documentation for the create subcommand was
removed. Specifically, for creating a snapshot of an existing boot
environment. bectl even has a test-case for this functionality.
Removing the sub-command description was discussed in PR 235850.
This patch brings back the second "create" description that was originally
in place. Albeit, with a few wording/clarifying changes.
Submitted by: Rob Fairbanks <rob.fx907 gmail com>
Reviewed by: kevans
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D20249
Tag saved entropy files as "nodump," to signal that the files should not be
backed up by dump(8) or other automated backup software that honors the file
flag.
Do not produce an error if the target file resides on a filesystem that does
not support file flags (e.g., msdos /boot).
Reviewed by: delphij
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D20358
Currently rinit1() and its IPv6 counterpart
nd6_prefix_onlink_rtrequest() uses dummy null_sdl gateway address
during route insertion and change it afterwards. This behaviour
brings complications to the routing stack and the users of its
upcoming notification system.
This change fixes both rinit1() and nd6_prefix_onlink_rtrequest()
by filling in proper gateway in the beginning. It does not change any
of the userland notifications as in both cases, they happen after
the insertion and fixup process (rt_newaddrmsg_fib() and nd6_rtmsg()).
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D20328
Some i2c controller hardware does not provide a way to do individual START,
REPEAT-START and STOP actions on the i2c bus. Instead, they can only do
a complete transfer as a single operation. Typically they can do either
START-data-STOP or START-data-REPEATSTART-data-STOP. In the i2c driver
framework, this corresponds to the iicbus_transfer method. In the userland
interface they are initiated with the I2CRDWR ioctl command.
These changes add a new 'tr' mode which can be specified with the '-m'
command line option. This mode should work on all hardware; when an i2c
controller driver doesn't directly support the iicbus_transfer method,
code in the i2c driver framework uses the lower-level START/REPEAT/STOP
methods to implement the transfer. After this new mode has gotten some
testing on various hardware, the 'tr' mode should probably become the
new default mode.
PR: 189914
This allows to reduce memory waste by letting UMA to put multiple small
buffers into one memory page slab. The page sharing means that UMA
may not be able to free memory page when some of buffers are freed, but
alternatively memory used by that buffer would just be wasted from the
beginning.
This change follows alike change in ZoL, but unlike Linux (according to
my understanding of it from comments) FreeBSD never shares slabs bigger
then one memory page, so this should be even less invasive then there.
MFC after: 2 weeks
Sponsored by: iXsystems, Inc.
amount of resizing reduces the number of functions changing the vm_map
invariants regarding the max_free field of map entries.
Reviewed by: markj (mentor)
Approved by: kib (mentor)
Differential Revision: https://reviews.freebsd.org/D20356
Fix OpsoleteFiles.inc after removal of ethernet drivers. The drivers have
manual pages, and manual pages are generally stored compressed, with a .gz
suffix, but this is not reflected in ObsoleteFiles and make delete-old fails
to remove them.
Approved by: brooks
Sponsored by: B3 Init
Differential Revision: https://reviews.freebsd.org/D20351
Revison 222167 added a new argument to VFS_FHTOVP. This revision updates the
man page to match.
Reviewed by: rmacklem
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D20323
This is needed for AMD SMCA processors, as SMCA uses different
MSR address for access MCA banks.
Use IA32 specific msr_ops as defualt, and use SMCA-specific msr_ops
when on an SMCA-enabled processor
Submitted by: chandu from amd dot com
Reviewed by: cem
Differential Revision: https://reviews.freebsd.org/D18055
This fixes a regress introduced in r339754.
After that change the code required that there is a HPET device
in the ACPI namespace.
The problem has been noticed on an PC Engines apu2 system.
While here, fix a small formatting issue.
has been in the PR system for 5 months and then on reviews for another 5.
Nobody came with any cases where it fails, while many people cried for
it to be commited & merged.
PR: 209468
Submitted by: Prasad B M <prasad.munirathnam@microsemi.com>
Reported by: Steven Peterson <scp@mainstream.net>
Approved by: scottl
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D18408
- Remove an extra space after "usage:".
- Avoid lines exceeding 80 columns.
Based on notes from rgrimes.
MFC with: r348066
Event: Waterloo Hackathon 2019
The MSR[EE] bit does not require synchronization when changing. This is a
trivial micro-optimization, removing the trailing isync from mtmsr().
MFC after: 1 week
It's invalid to reference a C++ string's c_str() buffer after the object
goes out of scope. Adjust the scope of the string to match the use in
write(2) to fix the misuse.
CID: 1393383
Reported by: Coverity
If MDS mitigation is enabled by the tunable but MDS microcode is not
early-loaded, software mitigation is selected. This causes
initializecpu() to try to allocate memory which makes boot process
very unhappy.
Create SYSINIT that runs sufficiently late to succeed.
Reported by: naddy
PR: 237968
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
found by Coverity. However, upon closer inspection the implementation of
fsck_ffs's fsck_readdir() and dircheck() functions is both nearly impossible
to follow and fails to check / fix directories in several cases. So, this
revision is an entire rewrite of these two functions to clarify what they
are doing and also to get something that works properly.
Referred by: cem
Reviewed by: kib, David G Lawrence
MFC after: 3 days
CID 1401317: namlen may be used uninitialized
There were several (apparently) copy-pasted NEED validation macros,
leading to the same error string for different issues. Change the
YP and NTP tags so they are distinct.
PR: 30863
Submitted by: Dan Lukes <dan@obluda.cz>
Reviewed by: markj
MFC after: 1 week
Event: Waterloo Hackathon 2019
This allows the user to enable, disable, and adjust the I/O deadman at
runtime. This can be especially useful when a pool is backed by remote
storage (such as iscsi, ggated, etc).
PR: 221906
Submitted by: Fabian Keil <fk@fabiankeil.de>
Obtained from: ElectroBSD
MFC after: 1 week
Sponsored by: Klara Systems
Event: Waterloo Hackathon 2019
"." and ".." names are not maintained in the mqueuefs dirent datastructure and
cannot be opened as mqueues. Creating or removing them is invalid; return
EINVAL instead of crashing.
PR: 236836
Submitted by: Torbjørn Birch Moltu <t.b.moltu AT lyse.net>
Discussed with: jilles (earlier version)
Previously, if a system had multiple batteries, the remaining life
percentage was calculated as the average of each battery's percent
remaining. This results in rather incorrect values when you consider the
case of the Thinkpad X270 that has a small 3 cell internally battery, and
a hot-swappable 9 cell battery that is used first. Battery 0 is at 100%,
but battery 1 is at 10%, you do not infact have 55% of your capacity
remaining.
The new method calculates the percentage based on remaining capacity
out of total capacity, giving a much more accurate reading.
PR: 229818
Submitted by: Keegan Drake H.P. <kd-dev@pm.me>
MFC after: 2 weeks
Sponsored by: Klara Systems
Event: Waterloo Hackathon 2019
Similar to r348026, exhaustive search for uses of CTRn() and cross reference
ktr.h includes. Where it was obvious that an OS compat header of some kind
included ktr.h indirectly, .c files were left alone. Some of these files
clearly got ktr.h via header pollution in some scenarios, or tinderbox would
not be passing prior to this revision, but go ahead and explicitly include it
in files using it anyway.
Like r348026, these CUs did not show up in tinderbox as missing the include.
Reported by: peterj (arm64/mp_machdep.c)
X-MFC-With: r347984
Sponsored by: Dell EMC Isilon
to then try to reproduce a kernel panic, which turned out to be a
race condition and hard to test from here.
Commit the changes anywhere as the "bind zero" case was a surprise
to me and we should try to maintain this status.
Also it is easy examples someone can build upon.
With help from: markj
Event: Waterloo Hackathon 2019
that we end up in a consistent locking state at the end of
udp_output() in order to be able to see what the values are based
on which we once took a decision (note: some values may have changed).
This helped to debug a syzkaller report.
MFC after: 2 months
Event: Waterloo Hackathon 2019
Using the latest NVIDIA driver, upon resuming from suspend with X
running the display remained blank. Additionally OpenGL applications
that were running triggered a number of error messages from the NVIDIA
driver.
This occurred because the vt efifb back-end did not signal the X server
to release the display before suspending (or to re-acquire it after
resuming). The NVIDIA driver includes code for smoothly shutting down
and re-initializing the GPU, which was not getting called.
Since the NVIDIA driver doesn't currently support framebuffer devices
and vt is forced to fall back to the efifb back-end, add vd_suspend and
vd_resume members to connect the suspend/resume path. This ensures the
X server is properly able to re-initialize the display.
PR: 237050
Submitted by: Erik Kurzinger <ekurzinger@nvidia.com>
Reviewed by: markj
MFC after: 2 weeks
Event: Waterloo Hackathon 2019
