imp [Tue, 29 May 2018 03:58:29 +0000 (03:58 +0000)]
Teach ufs_module.c about bsd labels and probe 'a' partition.
If the check for a UFS partition at offset 0 on the disk fails, check
to see if there's a BSD disklabel at block 1 (standard) or at offset
512 (install images assume 512 sector size). If found, probe for UFS
on the 'a' partition.
This fixes UEFI booting images from a BSD labeled MBR slice when the
'a' partiton isn't at offset 0. This is a stop-gap fix since we plan
on removing boot1.efi in FreeBSD 12. We can't easily do that for 11.2,
however, hence the short MFC window.
vangyzen [Tue, 29 May 2018 02:41:32 +0000 (02:41 +0000)]
Bump the date on man pages in r334306
It seems a shame to ruin the patina of the June 4, 1993 date
on abort.3, especially since it still matched the date of
the SCCS ID, but those are the rules.
araujo [Tue, 29 May 2018 01:46:00 +0000 (01:46 +0000)]
Simplify macros EFPRINTF and EFFLUSH. [0]
Also stdarg(3) says that each invocation of va_start() must be paired
with a corresponding invocation of va_end() in the same function. [1]
mmacy [Tue, 29 May 2018 00:53:53 +0000 (00:53 +0000)]
route: fix missed ref adds
- ensure that we bump the ifa ref whenever we add a reference
- defer freeing epoch protected references until after the if_purgaddrs
loop
asomers [Mon, 28 May 2018 20:47:39 +0000 (20:47 +0000)]
Fix "Bad tailq" panic when auditing auditon(A_SETCLASS, ...)
Due to an oversight in r195280, auditon(A_SETCLASS, ...) would cause a tailq
element to get added to the tailq twice, resulting in a circular tailq. This
panics when INVARIANTS are on.
emaste [Mon, 28 May 2018 20:06:40 +0000 (20:06 +0000)]
if_muge: Add GMII enable (vs RGMII) bit
The GMII control bit ETH_MAC_CR_GMII_EN_ is not documented in
LAN78xx datasheets, but from the permissively licensed header provided
by Microchip it is:
trasz [Mon, 28 May 2018 18:34:16 +0000 (18:34 +0000)]
Change the default USB template from the current 0 to -1. The reason
is that current one (mass storage device) doesn't work as it is - it
needs to be set to 0 after the LUN is configured, which is what the
cfumass rc script does. In other words: the current default does not
work, and to actually make it work it had to be set to -1 in
/boot/loader.conf.
Reviewed by: hselasky@
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
andrew [Mon, 28 May 2018 17:09:29 +0000 (17:09 +0000)]
Create a new function to walk the EFI memory table & run a callback for
each entry. We can then use this to ensure the RunTime data is mapped in
the DMAP, but not in phys_avail.
zeising [Mon, 28 May 2018 17:08:37 +0000 (17:08 +0000)]
Complete removal of lmc(4)
The lmc(4) driver was removed in r333144 and relevant files added to
ObsoleteFiles.inc, however, include/sys/dev/lmc was not removed from mtree
and is recreated on every install. Remove it from mtree.
alc [Mon, 28 May 2018 16:23:39 +0000 (16:23 +0000)]
Addendum to r334233. In vm_fault_populate(), since the page lock is held,
we must use vm_page_xunbusy_maybelocked() rather than vm_page_xunbusy() to
unbusy the page.
alc [Mon, 28 May 2018 04:38:10 +0000 (04:38 +0000)]
Eliminate duplicate assertions. We assert at the start of vm_fault_hold()
that the map entry is wired if the caller passes the flag VM_FAULT_WIRE.
Eliminate the same assertion, but spelled differently, at the end of
vm_fault_hold() and vm_fault_populate(). Repeat the assertion only if the
map is unlocked and the map lookup must be repeated.
Reviewed by: kib
MFC after: 10 days
Differential Revision: https://reviews.freebsd.org/D15582
jhibbits [Sun, 27 May 2018 20:24:24 +0000 (20:24 +0000)]
Stop idle threads on power9 in the idle task until an interrupt.
This reduces the CPU cycle wastage on power9, which is SMT4. Any idle
thread that's spinning is simply starving working threads on the same core
of valuable resources.
This can be reduced further by taking more advantage of the PSSCR supported
states, as well as permitting state loss, as is currently done for power8.
The currently implemented stop state is the lowest latency, which may still
consume resources.
rmacklem [Sat, 26 May 2018 23:02:15 +0000 (23:02 +0000)]
Fix the sleep event for layout recall.
The sleep for I/O completion during an NFSv4.1 pNFS layout recall used
the wrong event value and could result in the "[nfscl]" thread hung
for the mount.
This patch fixes the event to be the correct.
This bug will only affect NFSv4.1 pnfs mounts and only when the server
does a layout recall callback, so it won't affect many. Without the patch,
a mount without the "pnfs" option will avoid the problem.
Found during testing of the pNFS server.
mmacy [Sat, 26 May 2018 19:29:19 +0000 (19:29 +0000)]
pmc(3)/hwpmc(4): update supported Intel processors to rely fully on the
vendor provided pmu-events tables and sundry cleanups.
The vendor pmu-events tables provide counter descriptions, default
sample rates, event, umask, and flag values for all the counter
configuration permutations. Using this gives us:
- much simpler kernel code for the MD component
- helpful long and short event descriptions
- simpler user code
- sample rates that won't overload the system
Update man page with newer sample types and remove unused sample type.
mmacy [Sat, 26 May 2018 18:12:50 +0000 (18:12 +0000)]
pmc(3)/hwpmc(4): update supported Intel processors to rely fully on the
vendor provided pmu-events tables and sundry cleanups.
The vendor pmu-events tables provide counter descriptions, default
sample rates, event, umask, and flag values for all the counter
configuration permutations. Using this gives us:
- much simpler kernel code for the MD component
- helpful long and short event descriptions
- simpler user code
- sample rates that won't overload the system
Update man page with newer sample types and remove unused sample type.
pmclog: update log record types, bump PMC_MAJOR
- explicitly make log record types a multiple of 8 bytes
- hook in pmu event types for pmc_allocate records
- remove references to no longer PCSAMPLE record
vangyzen [Sat, 26 May 2018 14:14:56 +0000 (14:14 +0000)]
if_hn: fix use of uninitialized variable
omcast was used without being initialized in the non-multicast case.
The only effect was that the interface's multicast output counter could be
incorrect.
trasz [Sat, 26 May 2018 11:13:17 +0000 (11:13 +0000)]
Revert r333493, which was a temporary fix for 11.2-RELEASE, and instead
switch the default kldxref_enable to YES.
The reason is that it's required for every image that's being cross-built,
as kldxref(8) cannot handle files for non-native architectures. For the
one that is not - amd64 - having it on by default doesn't change anything;
the script is noop if the linker.hints already exists.
jhibbits [Sat, 26 May 2018 04:33:19 +0000 (04:33 +0000)]
On POWER9 clear the HID0_RADIX before enabling the page tables
POWER9 supports Radix page tables in addition to Hashed page tables. When
Radix page tables are in use, the TLB is cut in half, so that half of the
TLB is used for the page walk cache. This is the default behavior, however
FreeBSD currently does not support Radix tables. Clear this bit so that we
can use the full TLB. Do this in the MMU logic so that configuration can be
localized to the specific translation format. Once we do support Radix
tables, the setup for that will be localized to the Radix MMU kobj.
alc [Sat, 26 May 2018 02:59:34 +0000 (02:59 +0000)]
Use pmap_enter(..., psind=1) in vm_fault_populate() on amd64. While
superpage mappings were already being created by automatic promotion in
vm_fault_populate(), this change reduces the cost of creating those
mappings. Essentially, one pmap_enter(..., psind=1) call takes the place
of 512 pmap_enter(..., psind=0) calls, and that one pmap_enter(...,
psind=1) call eliminates the allocation of a page table page.
Reviewed by: kib
MFC after: 10 days
Differential Revision: https://reviews.freebsd.org/D15572
erj [Sat, 26 May 2018 00:46:08 +0000 (00:46 +0000)]
iflib: Add new shared flag: IFLIB_ADMIN_ALWAYS_RUN
ixl(4)'s nvmupdate utility expects the nvmupdate process to run
while the interface is down; these nvm update commands use the
admin queue, so the admin queue needs to be able to generate
interrupts and be processed while the interface is down.
So add a flag that ixl(4) sets that lets the entire admin task
run even when the interface is marked down/IFF_DRV_RUNNING isn't set.
With this change, nvmupdate should function like it did pre-iflib.
jhibbits [Sat, 26 May 2018 00:41:50 +0000 (00:41 +0000)]
Only crop the VPN on POWER4 and derivatives for TLBIE operations
Summary:
PowerISA 2.03 and later require bits 14:65 in the RB register argument,
which is the full value of the vpn argument post-shift. Only POWER4, POWER4+,
and PPC970* need the upper 16 bits cropped.
With this change FreeBSD can boot to multi-user on POWER9.
bdrewery [Fri, 25 May 2018 21:46:53 +0000 (21:46 +0000)]
META_MODE: Fix trying to rebuild jevents due to missing .meta file.
The tool is built separately in buildworld in a subdirectory rather than
how other build-tools are done. Subdirectory builds in lib/libpmcstat
remain broken since the tool cannot be auto-built from here.
brooks [Fri, 25 May 2018 20:40:23 +0000 (20:40 +0000)]
Make vadvise compat freebsd11.
The vadvise syscall (aka ovadvise) is undocumented and has always been
implmented as returning EINVAL. Put the syscall under COMPAT11 and
provide a userspace implementation.
feld [Fri, 25 May 2018 19:36:26 +0000 (19:36 +0000)]
rc.subr: Support loading environmental variables from a file
The current support for setting environment via foo_env="" in rc.conf is
not scalable and does not handle envs with spaces in the value. It seems
a common pattern for some newer software is to skip configuration files
altogether and rely on the env. This is well supported in systemd unit
files and may be the inspiration for this trend.
kibab [Fri, 25 May 2018 19:00:28 +0000 (19:00 +0000)]
Fix building GENERIC-MMCCAM on arm64
Since GENERIC includes quite a few drivers now, all MMC drivers should have
appropriate MMCCAM-related ifdefs and include opt_mmccam.h so that
those ifdefs are actually processed correctly.
Reviewed by: manu
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D15569
emaste [Fri, 25 May 2018 17:31:43 +0000 (17:31 +0000)]
if_muge: Use lock assertion instead of broken locking in lan78xx_chip_init
Previously lan78xx_chip_init locked the driver's mutex if not already
locked, but unlocked it only in the case of error. This provided a
fairly clear indication that the function is already called with the
lock held, so just replace it with a lock assertion.
kib [Fri, 25 May 2018 16:29:22 +0000 (16:29 +0000)]
Optimize i386 pmap_extract_and_hold().
In particular, stop using pmap_pte() to read non-promoted pte while
walking the page table. pmap_pte() needs to shoot down the kernel
mapping globally which causes IPI broadcast. Since
pmap_extract_and_hold() is used for slow copyin(9), it is very
significant hit for the 4/4 kernels.
Instead, create single purpose per-processor page frame and use it to
locally map page table page inside the critical section, to avoid
reuse of the frame by other thread if context switched.
Measurement demostrated very significant improvements in any load that
utilizes copyin/copyout.
Found and benchmarked by: bde
Sponsored by: The FreeBSD Foundation
royger [Fri, 25 May 2018 08:44:00 +0000 (08:44 +0000)]
xen: remove dead code from gnttab.h
This code was left over when it was imported from Linux. The original
committer thought that those functions would be implemented, so the
prototypes where left in place. Delete them at once.
avg [Fri, 25 May 2018 07:33:20 +0000 (07:33 +0000)]
re-synchronize TSC-s on SMP systems after resume, if necessary
The TSC-s are checked and synchronized only if they were good
originally. That is, invariant, synchronized, etc.
This is necessary on an AMD-based system where after a wakeup from STR I
see that BSP clock differs from AP clocks by a count that roughly
corresponds to one second. The APs are in sync with each other. Not
sure if this is a hardware quirk or a firmware bug.
This is what I see after a resume with this change:
SMP: passed TSC synchronization test after adjustment
acpi_timer0: restoring timecounter, ACPI-fast -> TSC-low
avg [Fri, 25 May 2018 07:29:52 +0000 (07:29 +0000)]
fix zfs_getpages crash when called from sendfile, followup to r329363
It turns out that sendfile_swapin() has an optimization where it may
insert pointers to bogus_page into the page array that it passes to
VOP_GETPAGES. That happens to work with buffer cache, because it
extensively uses bogus_page internally, so it has the necessary checks.
However, ZFS did not expect bogus_page as VOP_GETPAGES(9) does not
document such a (ab)use of bogus_page.
So, this commit adds checks and handling of bogus_page.
I expect that use of bogus_page with VOP_GETPAGES will get documented
sooner rather than later.
Reported by: Andrew Reilly <areilly@bigpond.net.au>, delphij
Tested by: Andrew Reilly <areilly@bigpond.net.au>
Requested by: many
MFC after: 1 week
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