If the starting pindex is equal to object->size, there is nothing to do.
This was harmless since the rest of vm_map_pmap_enter() has no effect
when psize == 0.
Submitted by: Wuyang Chung <wuyang.chung1@gmail.com>
Reviewed by: alc, dougm, kib
MFC after: 1 week
Github PR: https://github.com/freebsd/freebsd/pull/417
Differential Revision: https://reviews.freebsd.org/D22678
These are cast to uma_import and uma_release functions. Use the signature
for these in the zone functions.
This was found with an experimental Kernel CFI. It will complain if the
signature is different than what a function pointer expects. The
simplest way to fix these is to correct the signature.
Reviewed by: rlibby
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D22671
[PowerPC] Fix crash in peephole optimization
When converting reg+reg shifts to reg+imm rotates, we neglect to
consider the CodeGenOnly versions of the 32-bit shift mnemonics. This
means we produce a rotate with missing operands which causes a crash.
Committing this fix without review since it is non-controversial that
the list of mnemonics to consider should include the 64-bit aliases
for the exact mnemonics.
Fixes PR44183.
This should fix "Assertion failed: (idx < size()), function operator[],
file /usr/src/contrib/llvm/include/llvm/ADT/SmallVector.h, line 153"
when building the graphics/mesa-dri port for the PowerPC64 ELFv2 ABI.
Reported by: Alfredo Dal'Ava Júnior <alfredo.junior@eldorado.org.br>
MFC after: 1 month
X-MFC-With: r353358
The mbuf zones were explicitly specifying the uma trash procedures on
zcreate, conditionally on INVARIANTS, because that used to be necessary
in order to get use-after-free checking for uma zones with non-empty
constructors or destructors. After r355137 uma automatically invokes
the trash constructor and destructor as long as no init and fini are
specified. This now allows the mbuf zones to pass their constructors
and destructors without needing to add on the uma trash procedures
conditionally.
Reviewed by: cem, jhb, markj
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22583
o Remove All Rights Reserved from my notices
o imp@FreeBSD.org everywhere
o regularize punctiation, eliminate date ranges
o Make sure that it's clear that I don't claim All Rights reserved by listing
All Rights Reserved on same line as other copyright holders (but not
me). Other such holders are also listed last where it's clear.
With the ratification of the Berne Convention in 2000, it became obsolete.
I have removed that phrase and the "(c)" only from files without copyright
claims by other parties. There are 2 files (pci.c, pci_private.h) that are
also claimed by Michael Smith <msmith@freebsd.org> and by BSDi, which have
therefore not been included in this commit.
When all member nations of the Buenos Aires Convention adopted the Berne
Convention, the phrase "All rights reserved" became unnecessary to assert
copyright. Remove it from files under my copyright.
There are 2 files (pci.c, pci_private.h) that) that do also bear msmith's
and BSDi's copyright. I have left them unchanged for now, since I do not
know whether they (or the legal successor in case of BSDi) would agree.
Use the right formats for the types given (vm_offset_t and vm_size_t are
both uint32_t on 32-bit platforms, and uint64_t on 64-bit platforms, and
match size_t in size, so we can use the size_t format as we do in other
similar code).
These were found by clang.
r354266 changed the type of bp_kernload to vm_paddr_t in platform_mpc85xx.c,
but not the variable itself in locore.S. This caused the AP to not come up,
due to overwriting the following variable (bp_virtaddr). Also, properly
load bp_kernload into MAS3 and MAS7. Prior to r354266, we required loading
into the low 4GB, but now we can load from anywhere in memory that ubldr can
access.
case, the number of operations spent on each b-bit word is
proportional to lg b rather than b.
For one word, shrink all regions of 0-bits by size-1 bit positions in
no more than O(lg(min(b,size))) operations. In what remains, the first
0-bit is either the start of an area of sufficient size contained
within the original word, or the start of an area that could spill
over into the next word, and prove to be of sufficient size once the
start of that word is examined.
Change bit_ffs_area_at similarly.
Reviewed by: erj, jacob.e.keller_intel.com
MFC with: r354977
Differential Revision: https://reviews.freebsd.org/D22523
Just a typo that Coverity identified.
Coverity also identified an unused store in the same functional area (x86 TAA
stuff), but this commit does not address that issue (CID 1408334).
Reported by: Coverity
CID: 1408328, 1408332
Modern versions of GCC warn about passing non-zero values to
__builtin_frame_address(). Passing 1 is a cosmetic change to remove
the db_trace_self() frame from the printed stack trace.
Reported by: marius, imp
Differential Revision: https://reviews.freebsd.org/D22600
- Use ustringp for the location of the argv and environment strings
and allow destp to travel further down the stack for the stackgap
and auxv regions.
- Update the Linux copyout_strings variants to move destp down the
stack as was done for the native ABIs in r263349.
- Stop allocating a space for a stack gap in the Linux ABIs. This
used to hold translated system call arguments, but hasn't been used
since r159992.
Reviewed by: kib
Tested on: md64 (amd64, i386, linux64), i386 (i386, linux)
Sponsored by: DARPA
Differential Revision: https://reviews.freebsd.org/D22501
the vnode, logical block number, and size of data block that is
being requested. They then use the VOP_BMAP function to calculate
the mapping from logical block number to physical block number from
which to access the data. This change expands the interface to also
pass the physical block number in cases where the VOP_MAP function
may no longer work, for example when a file is being truncated.
No functional change.
Reviewed by: kib
Tested by: Peter Holm
Sponsored by: Netflix
If we boot with hw.ncpu=X (available on arm and arm64 at least) we
shouldn't attach the cpufreq driver as cf_set_method will try to get
the cpuid and it doesn't exists.
This solves cpufreq panicing on RockChip RK3399 when booting with
hw.ncpu=4
MFC after: 1 week
RK3399 PLLs have three modes :
- Normal, where they behave normally and their freq is calculated based on
the registers values.
- Slow, where the PLL freq is 24Mhz (well, the external oscillator).
- Deep Slow, used for suspend where the freq is 32Khz.
We used to put every CPU related PLL in normal mode but it can cause problem
if the firmware didn't setup the clocks register correctly.
And even if it did but left the pll in slow or deep slow mode that might be
because the PMIC suppling voltage for the CPU haven't been configured yet
and we cannot do that at this point.
So remove the ability to set PLLs to normal mode at boot to avoid any problems.
r354247 converted try_include to lfs + dofile with the loader.lua_path added
just before. Fortunately, there was a hardcoded /boot/lua fallback in case
loader.lua_path wasn't being set yet- I typo'd it as loader.lua_paths.
Fix the typo.
X-MFC-With: r354247
MFC after: 3 days
We have a couple optimizations for when the bitset is known to be just
one word. But with dynamically sized bitsets, it was actually more work
to determine the size than just to do the necessary computation. Now,
only use the optimization when the size is known to be constant.
Reviewed by: markj
Discussed with: jeff
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22639
Maps from the mips busdma dmamap_zone were not completely initialized.
In particular, pagesneeded and pagesreserved were not initialized. This
could cause a crash.
Remove some dead fields from mips struct bus_dmamap while here.
Reported by: brooks
Reviewed by: ian
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D22638
The resizing could be a downsizing so some data would be lost and we
could attempt to read past the end of the new memory allocation.
MFC after: 2 weeks
Sponsored by: Panzura
groups. Do not acquire additional references. This makes the IPv4 IGMP
code in line with the IPv6 MLD code.
Background:
The IPv4 multicast code puts an extra reference on the in_multi struct
when joining groups. This becomes visible when using daemons like
igmpproxy from ports, that multicast entries do not disappear from the
output of ifmcstat(8) when multicast streams are disconnected.
This fixes a regression issue after r349762.
While at it factor the ip_mfilter_insert() and ip6_mfilter_insert() calls
to avoid repeated "is_new" check.
Differential Revision: https://reviews.freebsd.org/D22595
Tested by: Guido van Rooij <guido@gvr.org>
Reviewed by: rgrimes (network)
MFC after: 1 week
Sponsored by: Mellanox Technologies
This was purely automatically massaged... some parts are still imperfect,
but this is close enough to make it more readable/easy to work on.
Unfortunately the vt/syscons/kdb situation slightly complicates changes to
tty locking, so some work will need to be done to remediate that.
tightening constraints on busy as a precursor to lockless page lookup and
should largely be a NOP for these cases.
Reviewed by: alc, kib, markj
Differential Revision: https://reviews.freebsd.org/D22611
the sched_preempt() switch optimization and causes the sched lock to be dropped
and immediately reacquired.
Reviewed by: jhb, kib, mav, markj (with changes)
Differential Revision: https://reviews.freebsd.org/D22623
This makes it possible to retrieve per-connection statistical
information such as the receive window size, RTT, or goodput,
using a newly added TCP_STATS getsockopt(3) option, and extract
them using the stats_voistat_fetch(3) API.
See the net/tcprtt port for an example consumer of this API.
Compared to the existing TCP_INFO system, the main differences
are that this mechanism is easy to extend without breaking ABI,
and provides statistical information instead of raw "snapshots"
of values at a given point in time. stats(3) is more generic
and can be used in both userland and the kernel.
Reviewed by: thj
Tested by: thj
Obtained from: Netflix
Relnotes: yes
Sponsored by: Klara Inc, Netflix
Differential Revision: https://reviews.freebsd.org/D20655
Some of the printf statements only use LF to get a newline. However, a CR character is also required for the serial console to print debug logs in a nice way.
Fix those code locations that only use LF, by adding a CR character.
Reviewed by: markj, aleksandr.fedorov@itglobal.com
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D22552
