So long as the TCP connection to a pNFS DS isn't shared with other DSs,
it can be closed down when the DS is being disabled in the pNFS client.
This causes any RPCs in progress to fail.
This patch only affects the NFSv4.1 pNFS client when errors occur
while doing I/O on a DS.
MFC after: 2 weeks
Xilinx Ultrascale+ are based on Cortex-A53 and use existing
UART driver (uart_dev_cdnc). Enable it in arm64 GENERIC config.
Submitted by: Michal Stanek <mst@semihalf.com>
Obtained from: Semihalf
to it being a common name elsewhere. Rename the old kzip one
to subr_inflate.c.
This actually fixes the build issues on sparc64 that my inclusion of
.PATH ${SYSDIR}/kern created in r336244, so also revert the broken
workaround I committed in r336249.
This slipped passed me because apparently, I never did a clean build.
Doing so ensures that all threads sharing the pmap have a consistent
view of the mapping. This fixes the problem described in the commit
log message for r329254 without the overhead of an extra fault in the
common case. (Once the riscv pmap_enter() implementation is similarly
modified, the workaround added in r329254 can be removed, reducing the
overhead of CoW faults.)
See also r335784 for amd64. The mips implementation of pmap_enter()
already reused the PV entry from the old mapping.
Reviewed by: kib, markj
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D16199
boot_parse_arg to parse a single arg
boot_parse_cmdline to parse a command line string
boot_parse_args to parse all the args in a vector
boot_howto_to_env Convert howto bits to env vars
boot_env_to_howto Return howto mask mased on what's set in the environment.
All these routines return an int that's the bitmask of the args
translated to RB_* flags. As a special case, the 'S' flag sets the
comconsole_speed env var. Any arg that looks like a=b will set the env
key 'a' to value 'b'. If =b is omitted, 'a' is set to '1'. This
should help us reduce the number of redundant copies of these routines
in the tree. It should also give a more uniform experience between
platforms.
Also, invent a new flag RB_PROBE that's set when 'P' is parsed. On
x86 + BIOS, this means 'probe for the keyboard, and if it's not there
set both RB_MULTIPLE and RB_SERIAL (which means show the output on
both video and serial consoles, but make serial primary). Others it
may be some similar concept of probing, but it's loader dependent
what, exactly, it means.
These routines are suitable for /boot/loader and/or the kernel,
though they may not be suitable for the tightly hand-rolled-for-space
environments like boot2.
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D16205
an I/O attempt on a DS to the server via LayoutReturn.
The current FreeBSD client can generate these errors for an operational
DS while doing a recovery of a mirror after a mirrored DS has been repaired.
I am not sure why these errors occur, but my best current guess is a race
between the Layout Recall issued by the kernel code run from pnfsdscopymr(8)
and a Read operation on the DS for the file bing copied.
The errrors are not fatal, since the client falls back on doing I/O through
the MDS, which can do the I/O successfully as a proxy. (The fact that the
MDS can do this indicates that the file does still exist on the functioning
DS.)
This patch only affects behaviour of the pNFS client and only when using
Flexible File layouts.
MFC after: 2 weeks
In practice, this moves the padding from below the canary to above
execpathp has no impact on stack consumption.
Submitted by: Wuyang-Chung (via github pull request #159)
MFC after: 1 week
Without this patch, the NFSv4.1 pNFS client shared a single TCP connection
for all DSs that resided on the same machine. This made disabling one of
the DSs impossible. Although unlikely, it is possible that the storage
subsystem has failed in such a way that the storage for one DS on a machine
is no longer functioning correctly, but the storage used by another DS on
the same machine is still ok. For this case, it would be nice if a system
can fail one of the DSs without failing them all.
This patch changes the default behaviour to use separate TCP connections
for each DS even if they reside on the same machine.
I do not believe that this will be a problem for extant pNFS servers, but
a sysctl can be set to restore the old behaviour if this change causes a
problem for an extant pNFS server.
This patch only affects the NFSv4.1 pNFS client.
MFC after: 2 weeks
The typical system now has a lot more memory than when pf was new, and is also
expected to handle more connections. Increase the default size of the state
table.
Note that users can overrule this using 'set limit states' in pf.conf.
From OpenBSD:
The year is 2018.
Mercury, Bowie, Cash, Motorola and DEC all left us.
Just pf still has a default state table limit of 10000.
Had! Now it's a tiny little bit more, 100k.
lead guitar: me
ok chorus: phessler theo claudio benno
background school girl laughing: bob
Obtained from: OpenBSD
Also, there is no need to use M_ZERO for idxmap_back. It will be
re-filled just after allocation in update_skipto_cache().
PR: 229665
MFC after: 1 week
This variable has been given the name "loader_env.disabled" as it's the
primary way most people will have an MD environment. This restores the
previously-default behavior of ignoring the loader(8) environment, which may
be useful for vendor distributions or other scenarios where inheriting the
loader environment may be considered a security issue or potentially
breaking of a more locked-down environment.
As the change to config(5) indicates, disabling the loader environment
should not be a choice made lightly since it may provide ACPI hints and
other useful things that the system can rely on to boot.
An UPDATING entry has been added to mention an upgrade path for those that
may have relied on the previous behavior.
Discussed with: bde
Relnotes: yes (maybe)
RFC5661 states that the cookie verifier should be 0 when the cookie is 0.
However, the wording is somewhat unclear and a recent discussion on the
nfsv4@ietf.org mailing list indicated that the NFSv4 server should ignore
the cookie verifier's value when the dirctory offset cookie is 0.
This patch deletes the check for this that would return NFSERR_BAD_COOKIE
when the verifier was not 0.
This was found during testing of the ESXi client against the NFSv4.1 server.
Reported by: daniel@ftml.net (via packet trace)
MFC after: 2 weeks
When the "pc" audit class is enabled and auditd is running, witness will
panic during thread exit because au_event_class tries to lock an rwlock
while holding a spinlock acquired upstack by thread_exit.
To fix this, move AUDIT_SYSCALL_EXIT futher upstack, before the spinlock is
acquired. Of thread_exit's 16 callers, it's only necessary to call
AUDIT_SYSCALL_EXIT from two, exit1 (for exiting processes) and kern_thr_exit
(for exiting threads). The other callers are all kernel threads, which
needen't call AUDIT_SYSCALL_EXIT because since they can't make syscalls
there will be nothing to audit. And exit1 already does call
AUDIT_SYSCALL_EXIT, making the second call in thread_exit redundant for that
case.
PR: 228444
Reported by: aniketp
Reviewed by: aniketp, kib
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D16210
- Resources used by spigen_mmap_single() are now tracked using
devfs_set_cdevpriv() rather than in the softc.
- Since resources are now tracked per-open-fd, there is no need to try to
impose any exclusive-open logic, so flags related to that are removed.
- Flags used to track open status to prevent detach() when the device is
open are replaced with calls to device_busy()/device_unbusy(). That
extends the protection up the hierarchy so that the spibus and hardware
controller drivers also can't be detached while the device is open/in use.
- Arbitrary limits on the maximum size of a transfer are removed, along with
the sysctl variables that allowed the limits to be changed. There is just
no reason to limit the size of a spi transfer to the machine's page size.
Or to any other arbitrary value, really.
- Most of the locking is removed. It was mostly protecting access to flags
and fields in the softc that no longer exist. The locking that remains is
just to prevent concurrent calls to device_[un]busy().
- The code was calling malloc() with M_WAITOK while holding a mutex in
several places. Since most of the locking is gone, that's fixed.
Summary:
Add the device id of the Panda Wireless PAU06 which seems to be
the already-supported combination of RT5392 MAC and RF RT5372
radio.
Reviewed By: allanjude, eadler, jhb
Approved By: jhb
Differential Revision: https://reviews.freebsd.org/D16211
As the comment says, ifdetach might be called during the course of driver
detach if initialization failed. This shouldn't be a total failure, though,
we just have nothing to do there.
This has been modified slightly from Augustin's original commit to move the
bail-out slightly earlier since the ic wouldn't have been added to the
ic list in the first place, and a comment has been added describing when
this might be an issue.
Submitted by: Augustin Cavalier <waddlesplash@gmail.com>
Obtained from: Haiku (e6f6c1b4633532a8ad37c803dc7c65601e5b24ba)
Remove numactl(1), edit numa(4) to bring it some closer to reality,
provide libc ABI shims for old NUMA syscalls.
Noted and reviewed by: brooks (previous version)
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D16142
(r334844). Most of the changes involve moving some code around to
reduce conflicts with future merges. One of the missing changes
included a notification on scrub cancellation.
Approved by: mav
Sponsored by: iXsystems Inc
For example, fully construct the new PTE before entering the critical
section. This change is a stepping stone to psind == 1 support on i386.
Reviewed by: kib, markj
Tested by: pho
Differential Revision: https://reviews.freebsd.org/D16188
No valid FreeBSD binary very called them (they would call lchown and
msync directly) and we haven't supported NetBSD binaries in ages.
This is a respin of r335983 with a workaround for the ancient BFD linker
in the libc stubs.
Reviewed by: kib
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D16193
sysctl interface. This is similar to the TCP host cache.
Reviewed by: pkelsey@, kbowling@
Sponsored by: Netflix, Inc.
Differential Revision: https://reviews.freebsd.org/D14554
When a client receives a SYN-ACK segment with a TFP fast open cookie,
but without an MSS option, an MSS value from uninitialised stack memory is used.
This patch ensures that in case no MSS option is included in the SYN-ACK,
the appropriate value as given in RFC 7413 is used.
Reviewed by: kbowling@
Sponsored by: Netflix, Inc.
Differential Revision: https://reviews.freebsd.org/D16175
