Nullfs needs to know the root vnode of the lower fs during the
operation. Currently it caches the upper vnode of it, which is also
the root of the nullfs mount. On unmount, nullfs calls vflush() with
rootrefs == 1, and aborts non-forced unmount if there are any more
vnodes instantiated during vflush(). This means that the reference to
the root vnode after failed non-forced unmount could be lost and
nullm_rootvp points to the freed memory.
Fix it by storing the reference for lower vnode instead, which is kept
intact during vflush(). nullfs_root() now instantiates the upper
vnode of lower root. Care about VV_ROOT flag in null_nodeget().
Reported and tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
The current code clearly intended for these to be octal based on the values
used, but the octal prefix was forgotten. Add it now for correctness, but
note that we don't currently execute these tests.
This has been submitted upstream as misc/54902, so I've omitted the standard
FreeBSD markers that we tend to put into netbsd-tests for upstream-candidate
identification.
Reviewed by: ngie
MFC after: 3 days
This kind of automagica got picked up in trusted/ prior to the initial
commit, but never got applied over in blacklisted. Ideally no one will be
using blacklisted/ to store arbitrary certs that they don't intend to
blacklist, so we should just install anything that's in here rather than
force consumer to first copy cert into place and then modify the file
listing in the Makefile.
Wise man once say: "it is better to restrict too much, than not enough.
sometimes."
Probe Family 17h CPUs for up to 4 (Zen, Zen+) or 8 (Zen2) CCD temperature
sensors. These were discovered by Ondrej Čerman
(https://github.com/ocerman) and collaborators experimentally, and are not
currently documented in any datasheet I have access to.
The device list hasn't aged well. All these devices are over a decade old. umass
supports thunb drives almost universally, and the list is too long to try to
list here.
Remove some obsolete advice as well. This isn't the place to talk about how to
create FAT filesystems, nor now to mount them. The only advice that's still
useful is the rescanning of a multi-slot flash adapater.
MFC After: 3 days
Includes commentary of when ZFS works well by default (>= 8GB RAM),
and where to go for information on ZFS tuning if required.
Also hoist the options text to the top of script as variables
(will help with future international translations).
Reviewed by: philip, dteske, karels, imp, emaste
Approved by: rgrimes
Differential Revision: https://reviews.freebsd.org/D23224
Make stock FreeBSD more useful for people wishing to use them. The
QEMU folks suggested this change. It adds a serial console which
allows them to interact with FreeBSD from the earliest moments. This
allows them to configure FreeBSD via the serial port to set it up for
CI use.
Reviewed by: kevans@
Sponsored by: Netflix, Inc
Differential Revision: https://reviews.freebsd.org/D22786
In r110908 (2003) alfred added DFLAG_PASSABLE to tag those types of FD
that can be passed via unix pipes, but mqueuefs didn't exist
yet. Later, in r152825 (2005) davidxu neglected to include
DFLAG_PASSABLE since people don't normally pass these things via unix
sockets (it's a FreeBSD implementation detail that it's a file
descriptor, nobody noticed). Then r223866 (2011) by jonathan used the
new flag in fdcopy, which fork uses. Due to that, mqueuefs actually
broke mqueue objects being propagated by fork. No mention of mqueuefs
was made in r223866, so I think it was an unintended consequence.
Fix this by tagging mqueuefs as passable as well. They were prior to
alfred's change (and it's clear there's no intent in his change to
change this behavior), and POSIX requires this to be the case as well.
PR: 243103
Reviewed by: kib@, jiles@
Differential Revision: https://reviews.freebsd.org/D23038
at the root of every subtree that changes in an insert or delete, and
only once, and ordered from the bottom of the tree to the top. For
intel_gas.c, the only user of RB_AUGMENT I can find, change the
augmenting routine so that it does not climb from entry to tree root
on every call, and remove a 'tree correcting' function that can be
supplanted by proper tree augmentation.
Reviewed by: kib
Tested by: pho
Differential Revision: https://reviews.freebsd.org/D23189
If the bio was split into several bios going down, completion computes
bio_completed of the original bio as sum of the bio_completes of the
splits. For BIO_SETUP, bio_length means something different than the
length. it is the requested speedup amount, and is duplicated into the
splits, which is in fact reasonable, since we cannot know how the
previous activity was distributed among subordinate geoms. Obviously,
the sum of n bio_length is greater than bio_length for n > 1, which
triggers assert that bio_length >= bio_completed for e.g. geom_stripe
and geom_raid3.
Fix this by reassigning bio_completed from bio_length for completed
BIO_SPEEDED, I do not think it really mattters what we return in
bio_completed.
Reported and tested by: pho
Reviewed by: imp
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D23380
This should fix linker errors when building with clang+lld.
After this change the lib32 compat libraries are now buildt with
-mhard-float instead of -msoft-float
Reviewed By: brooks, jhb
Differential Revision: https://reviews.freebsd.org/D23229
In order to do so we need to install the msdosfs headers to the bootstrap
sysroot and avoid includes of kernel headers that may not exist on every
host (e.g. sys/lockmgr.h). This change should allow bootstrapping of makefs
on FreeBSD 11+ as well as Linux and macOS.
We also have to avoid using the IO_SYNC macro since that may not be
available. In makefs it is only used to switch between calling
bwrite() and bdwrite() which both call the same function. Therefore we
can simply always call bwrite().
For our CheriBSD builds we always bootstrap makefs by setting
LOCAL_XTOOL_DIRS='lib/libnetbsd usr.sbin/makefs' and use the makefs binary
from the build tree to create a bootable disk image.
Reviewed By: brooks
Differential Revision: https://reviews.freebsd.org/D23201
If we're going to throttle user requested P-states, we should at least produce
a debug log line indicating the surprising behavior.
PR: inspired by 234733
One more instance of if_input being called outside of
interrupt, by means of msk_handle_events.
Differential Revision: https://reviews.freebsd.org/D23379
The PR reported a crash that occurred when a file was removed while
client(s) were actively doing lock operations on it.
Since nfsvno_getvp() will return NULL when the file does not exist,
the bug was obvious and easy to fix via this patch. It is a little
surprising that this wasn't found sooner, but I guess the above
case rarely occurs.
Tested by: iron.udjin@gmail.com
PR: 242768
Reported by: iron.udjin@gmail.com
MFC after: 2 weeks
These should not be any functional change. While the change in
emul10kx-pcm.c looks like a real bug fix (as opposed to inconsistent
whitespace), the extra statements were not harmful.
Reviewed by: kib
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D23363
Originally, hack.c was compiled into a shard object with just -shared
-nostdlib. This assumed that ${CC} did not require any additional
flags for ABIs, cross-building, etc.
When kern.post.mk was created in r89509 by reducing duplication in
kernel Makefile.<arch> files, the -shared flag was moved into a
HACK_EXTRA_FLAGS variable so that sparc64 could override it with
-Wl,-shared. The sparc64 hack was removed in r111650, but
HACK_EXTRA_FLAGS was left in place. Over time, we have started
support toolchains that require flags to support alternate ABIs on
MIPS and PowerPC and started (ab)using HACK_EXTRA_FLAGS to set only
those flags.
I need to fix risc-v to pass -mno-relax to the hack.c build for lld in
llvm 10, and the patches to support cross-build from non-FreeBSD hosts
need to include -target for clang in CFLAGS for hack.c. Rather than
adding more hacks into HACK_EXTRA_FLAGS, just use the full set of
CFLAGS with hack.c.
Reviewed by: kib, arichardson
MFC after: 1 month
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D23362
Calls to vop_bypass pass the same argument, but type casted to something else.
Thus by replacing NULL routines with vop_bypass we avoid a runtime check.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D23357
