Since ipvoly is used for checksum calculation, part of original IP
header is zeroed. This part includes ip_ttl field, that can be used
later in IP_MINTTL socket option handling.
PR: 239799
MFC after: 1 week
tcpratelimit isn't supported as there's now atomic_add_64, so add it to the exclusion list
Add comment for why PPC_PROBE_CHIPSET is on the list
Remove UKBD_DFLT_KEYMAP now that ukbd works on all platforms.
files.x86 is for the parts of the system that are common to both i386 and amd64
due too their nature. First up, to get the ball rolling, is fdc, the floppy disk
support. It works only on amd64 and i386 these days, and that's unlikely to
change.
Reviewed by: jhb, cem (earlier versrions)
Differential Revision: https://reviews.freebsd.org/D21210
Move the floppy driver to the x86 specific notes file.
Reviewed by: jhb, manu, jhibbits, emaste
Differential Revision: https://reviews.freebsd.org/D21208
x86 needs sc, as does sparc64. powerpc doesn't use it by default, but some old
powermac notebooks do not work with vt yet for reasons unknonw. Even so, I've
removed it from powerpc LINT. It's not in daily use there, and the intent is to
100% switch to vt now that it works for that platform to limit support burden.
All the other architectures omit some or all of the screen savers from their
lint config. Move them to the x86 NOTES files and remove the exclusions. This
reduces slightly the number of savers sparc64 compiles, but since they are in
GENERIC, the overage is adequate and if someone reaelly wants to sort them out
in sparc64 they can sweat the details and the testing.
Reviewed by: jhb (earlier version), manu (earlier version), jhibbits
Differential Revision: https://reviews.freebsd.org/D21233
Avoid empty structs, that have undefined behavior in C99 and
make compilers complain about it
(empty struct has size 0 in C, size 1 in C++).
Reviewed by: jhibbits
Differential Revision: https://reviews.freebsd.org/D21231
Fixed trap handler logic, in order to make it save FPU registers,
if FPU is enabled, before enabling VSX. Without this change, FPU
register contents were being lost when set before VSX was enabled.
illumos/illumos-gate@892586e8a1892586e8a1https://www.illumos.org/issues/6585
In any pool without the extensible dataset feature flag already enabled,
creating a dataset with dedup set to use one of the new checksums would result
in the following panic as soon as any data was added:
panic[cpu0]/thread=ffffff0006761c40: feature_get_refcount(spa, feature,
&refcount) != 48 (0x30 != 0x30), file: ../../common/fs/zfs/zfeature.c line 390
ffffff0006761830 fffffffffba8fbdd ()
ffffff0006761890 zfs:feature_do_action+11a ()
ffffff00067618c0 zfs:spa_feature_incr+1e ()
ffffff0006761920 zfs:dmu_object_zapify+b7 ()
ffffff00067619b0 zfs:dsl_dataset_activate_feature+97 ()
ffffff0006761a20 zfs:dsl_dataset_sync+ba ()
ffffff0006761ab0 zfs:dsl_pool_sync+153 ()
ffffff0006761b70 zfs:spa_sync+26e ()
ffffff0006761c20 zfs:txg_sync_thread+227 ()
ffffff0006761c30 unix:thread_start+8 ()
Inspection showed that feature->fi_feature was 7, which is the value of
SPA_FEATURE_EXTENSIBLE_DATASET in the spa_feature enum.
Testing shows that the panic can be prevented by explicitly setting extensible
dataset as a dependency for the sha512, edonr, and skein feature flags.
Alternatively, the new checksums code could possibly be changed to obviate the
need for the dependency.
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Richard Laager <rlaager@wiktel.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: ilovezfs <ilovezfs@icloud.com>
Note that FreeBSD does not support ednor yet.
MFC after: 2 weeks
The race was introduced in r337669, the large dnode feature import from
ZoL. The problem was debugged by ZoL developers and then,
independently, on FreeBSD.
The fix is an early proposal by Brian Behlendorf:
50f32ed74e
This fix never went into ZoL. A larger change that was committed later
included a different solution because of the re-worked code.
Ideally, we want to revert this fix and re-synchronize FreeBSD large
dnode code with that in illumos (or newer ZoL). illumos has a later
import of the feature from ZoL that does not have the bug.
PR: 236480
Obtained from: Brian Behlendorf <behlendorf1@llnl.gov>
Submitted by: ncrogers@gmail.com (patch adaptation)
Reported by: ncrogers@gmail.com
Tested by: ncrogers@gmail.com,
Dennis Noordsij <dennis.noordsij@alumni.helsinki.fi>,
Julien Cigar <julien@perdition.city>
MFC after: 10 days
This is part 2 of r347078, pulling the page directory out of the Book-E
pmap. This breaks KBI for anything that uses struct pmap (such as vm_map)
so any modules that access this must be rebuilt.
instead of the hard-coded value of 4. This is a precursor to increasing
the number of interfaces speficied in "on {interface, ..., interface}".
Note that though this feature is coded in ipf_y.y, it is partially
supported in the ipfilter kld, meaning it does not work yet (and is yet
to be documented in ipf.5 too).
MFC after: 2 weeks
broken ipfilter rule matches (upstream bug #554). The upstream patch
was incomplete, it resolved all but one rule compare issue. The issue
fixed here is when "{to, reply-to, dup-to} interface" are used in
conjuncion with "on interface". The match was only made if the on keyword
was specified in the same order in each case referencing the same rule.
This commit fixes this.
The reason for this is that interface name strings and comment keyword
comments are stored in a a variable length field starting at fr_names
in the frentry struct. These strings are placed into this variable length
in the order they are encountered by ipf_y.y and indexed through index
pointers in fr_ifnames, fr_comment or one of the frdest struct fd_name
fields. (Three frdest structs are within frentry.) Order matters and
this patch takes this into account.
While in here it was discovered that though ipfilter is designed to
support multiple interface specifiations per rule (up to four), this
undocumented (the man page makes no mention of it) feature does not work.
A todo is to fix the multiple interfaces feature at a later date. To
understand the design decision as to why only four were intended, it is
suspected that the decision was made because Sun workstations and PCs
rarely if ever exceeded four NICs at the time, this is not true in 2019.
PR: 238796
Reported by: WHR <msl0000023508@gmail.com>
MFC after: 2 weeks
status register clears pending interrupts. By moving that code out of the
interrupt handler into a taskqueue task, I effectively created an interrupt
storm by returning from the handler with the interrupt source still active.
We'll have to find a different solution for this driver's need to sleep
in an ithread context.
Long ago this was needed, but now low-level i2c controller drivers cleverly
defer attachment of the bus until interrupts are enabled (if they require
interrupts to function), so that every i2c slave device doesn't have to.
We used the aw_clk_nm clock for clock with only one divider factor
and used a fake multiplier factor. This cannot work properly as we
end up writing the "fake" factor to the register (and so always set
the LSB to 1).
Create a new clock for those.
The reason for not using the clk_div clock is because those clocks are
a bit special. Since they are (almost) all related to video we also need
to set the parent clock (the main PLL) to a frequency that they can support.
As the main PLL have some minimal frequency that they can support we need to
be able to set the main PLL to a multiple of the desired frequency.
Let say you want to have a 71Mhz pixel clock (typical for a 1280x800 display)
and the main PLL cannot go under 192Mhz, you need to set it to 3 times the
desired frequency and set the divider to 3 on the hdmi clock.
So this also introduce the CLK_SET_ROUND_MULTIPLE flag that allow for this kind
of scenario.
- Put all clock and control unit driver in BUS_PASS_RESOURCE except
for the DE2 CCU as it needs the main CCU to be available.
- Use BUS_PASS_CPU for a20_cpu_cfg as it makes more sense.
- For aw_syscon use SCHEDULER pass as we need it early for drivers
that attach in BUS_PASS_SUPPORTDEV
- For the rest we can use BUS_PASS_SUPPORTDEV
ensure that the subsequent mbuf contains the remainder of the bytes
the caller sought. If this is not the case, fall through to the code
which gathers the bytes in a new mbuf.
This fixes a bug where m_pulldown() could fail to gather all the desired
bytes into consecutive memory.
PR: 238787
Reported by: A reddit user
Discussed with: emaste
Obtained from: NetBSD
MFC after: 3 days
Our in-tree gcc doesn't have a no-tree-vectorize optimization knob, so we get a
warning that it's unused. This causes the build to fail on all our gcc platforms.
Add a quick version check as a stop-gap measure to get CI building again.
An earlier version of the patch had code that set "error" between
line#s 2797-2799. When that code was moved, the second check for "error != 0"
could never be true and the check became harmless cruft.
This patch removes the cruft, mainly to make Coverity happy.
Reported by: asomers, cem
Since the VOP_IOCTL(FIOSEEKDATA/FIOSEEKHOLE) calls are done with the
vnode unlocked, it is possible for another thread to do:
- truncate(), lseek(), write()
between the two calls and create a hole where FIOSEEKDATA returned the
start of data.
For this case, VOP_IOCTL(FIOSEEKHOLE) will return the same offset for
the hole location. This could result in an infinite loop in the copy
code, since copylen is set to 0 and the copy doesn't advance.
Usually, this race is avoided because of the use of rangelocks, but the
NFS server does not do range locking and could do a sequence like the
above to create the hole.
This patch checks for this case and makes the hole search fail, to avoid
the infinite loop.
At this time, it is an open question as to whether or not the NFS server
should do range locking to avoid this race.
We should support removing vdev from boot pool. Update loader zfs reader
to support com.delphix:removing.
Reviewed by: allanjude
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D18901
Create a rough and ready NOTES file from GENERIC, remove the duplication from
sys/conf/NOTES and add relevant no* directives to make this compile.
Reviewed by: jhb, manu (earlier versions that differed only in comments)
Differential Revision: https://reviews.freebsd.org/D21184
The COMPAT_43 option isn't quite like the other compat options, and arm64 makes
attempts to support it in 64-bit mode. In 32-bit compat mode, however, two
syscall implementations that COMPAT_FREEBSD32 assumes will be there are
missing. Provide implementations for these: ofreebsd32_sigreturn (which we'll
never encounter, so implement it as nosys as is done in kern_sig.c) and
ofreebsd32_getpagesize, where we'll always return 4096 since that's the only
PAGE_SIZE we support, similar to how the ia32 implementation does things.
Reviewed by: manu@
Differential Revision: https://reviews.freebsd.org/D21192
During early stages of kern_exec(), including strings copyout,
p_textvp for init is NULL. This prevented stack grow from working for
init execution.
Without stack gap enabled, initial stack segment size is enough for
strings passed by kernel to init. With the gap enabled, the used
address might fall out of the initial segment, which kills init.
Exclude initproc from the check for contexts which should not cause
stack grow in the target map.
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Attempts to use cryptodev (e.g. tests at /usr/src/tests/sys/opencrypto
with armv8crypto added to the module lists) were causing a panic.
Submitted by: Greg V <greg_unrelenting.technology>
Differential Revision: https://reviews.freebsd.org/D21012
