This lets us use the TSC to implement early DELAY, limiting the use of
the sometimes-unreliable 8254 PIT.
PR: 262155
Reviewed by: emaste
Tested by: emaste, mike tancsa <mike@sentex.net>, Stefan Hegnauer <stefan.hegnauer@gmx.ch>
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D34367
In a subsequent commit clock_init() will attempt to determine the TSC
frequency, and this requires that CPU identification is finalized.
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
The gunion(8) utility is used to track changes to a read-only disk on
a writable disk. Logically, a writable disk is placed over a read-only
disk. Write requests are intercepted and stored on the writable
disk. Read requests are first checked to see if they have been
written on the top (writable disk) and if found are returned. If
they have not been written on the top disk, then they are read from
the lower disk.
The gunion(8) utility can be especially useful if you have a large
disk with a corrupted filesystem that you are unsure of how to
repair. You can use gunion(8) to place another disk over the corrupted
disk and then attempt to repair the filesystem. If the repair fails,
you can revert all the changes in the upper disk and be back to the
unchanged state of the lower disk thus allowing you to try another
approach to repairing it. If the repair is successful you can commit
all the writes recorded on the top disk to the lower disk.
Another use of the gunion(8) utility is to try out upgrades to your
system. Place the upper disk over the disk holding your filesystem
that is to be upgraded and then run the upgrade on it. If it works,
commit it; if it fails, revert the upgrade.
Further details can be found in the gunion(8) manual page.
Reviewed by: Chuck Silvers, kib (earlier version)
tested by: Peter Holm
Differential Revision: https://reviews.freebsd.org/D32697
something similar a while back, and there are devices in the wild
that otherwise won't attach. This patch is temporary until the
PHY code is further cleared up.
Obtained from: grehan
but was missed. Mark it for gone_in 14.0. The hardware hasn't been
produced or supported in over 20 years, and even back then it was
known to be electrically unreliable and prone to catastrophic failure.
physical/absolute address in FreeBSD, but it looks like the calling
code might be somewhat portable to other OS's that do require this.
Therefore, set the variables to __unused instead of removing the code
entirely.
While coalescing all ECN-related code into new common source files,
the flag to deal with SACK retransmissions was skipped. This leads
to non-compliant ECT-marking of SACK retransmissions, as well as
the premature sending of other TCP ECN flags (CWR).
Reviewed By: rrs, #transport
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D34376
Use get_pcpu() instead of an open-coded pcpu_find(td->td_oncpu). This
eliminates some memory accesses and results in a shorter instruction
sequence. Note that get_pcpu() didn't exist when rmlocks were added.
Reviewed by: jah, mjg
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D34377
Due to misplaced braces, an error from vfs_uninit() in the VFCF_SBDRY
case was ignored.
Reported by: Anton Rang <rang@acm.org>
Reviewed by: Anton Rang <rang@acm.org>, markj
MFC after: 1 week
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D34375
ler@, markj@ reported a use after free in nfscl_cleanupkext().
They also provided two possible causes:
- In nfscl_cleanup_common(), "own" is the owner string
owp->nfsow_owner. If we free that particular
owner structure, than in subsequent comparisons
"own" will point to freed memory.
- nfscl_cleanup_common() can free more than one owner, so the use
of LIST_FOREACH_SAFE() in nfscl_cleanupkext() is not sufficient.
I also believe there is a 3rd:
- If nfscl_freeopenowner() or nfscl_freelockowner() is called
without the NFSCLSTATE mutex held, this could race with
nfscl_cleanupkext().
This could happen when the exclusive lock is held
on the client, such as when delegations are being returned
or when recovering from NFSERR_EXPIRED.
This patch fixes them as follows:
1 - Copy the owner string to a local variable before the
nfscl_cleanup_common() call.
2 - Modify nfscl_cleanup_common() so that it will never free more
than the first matching element. Normally there should only
be one element in each list with a matching open/lock owner
anyhow (but there might be a bug that results in a duplicate).
This should guarantee that the FOREACH_SAFE loops in
nfscl_cleanupkext() are adequate.
3 - Acquire the NFSCLSTATE mutex in nfscl_freeopenowner()
and nfscl_freelockowner(), if it is not already held.
This serializes all of these calls with the ones done in
nfscl_cleanup_common().
Reported by: ler
Reviewed by: markj
Tested by: cy
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D34334
Add per-Session configurable ping (SCSI NOP) and login timeouts.
Remove the torn down, old iSCSI session quickly, when performing a reconnect.
Reviewed By: trasz
Sponsored by: NetApp, Inc.
Differential Revision: https://reviews.freebsd.org/D34198
Update to the latest firmware based on
linux-firmware at c53073d4e1485ac9f7cb065db466793c495aead7
and update firmware module Makefiles accordingly.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Add a string of the debug type to the output of the debug message so it
is easier to search for specific events in a trace with lots of debugging
on. While here remove superflous ().
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Import new code from iwlwifi-next at cb0a1fb7fd86b0062692b5056ca8552906509512
(matching tag: iwlwifi-next-for-kalle-2022-02-18).
Also add files not previously imported because we are not yet compiling
them to ease updating and having them when needed.
This adds MEI (Management Engine) support upstream which we cannot import
(currently GPL-only) so we have stub functions for the missing bits.
This also reduces the diff to upstream. Changes submitted to avoid
problems with const and with void * arithmetics were merged.
In the module build Makefile disable CONFIG_IWLWIFI_OPMODE_MODULAR
as we are building iwlwifi as a single module.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
This should fix uninitialized memory reads when working with broken
HA peer, like one fixed in 1a8d8a3a90. Instead print error message
and kill the HA link.
MFC after: 3 days
Sponsored by: iXsystems, Inc.
When renaming a directory into a different parent directory, invalidate
the cached attributes of the new parent. Otherwise, stat will show the
wrong st_nlink value.
MFC after: 1 week
Reviewed by: ngie
Differential Revision: https://reviews.freebsd.org/D34336
Add dummy MODULE_IMPORT_NS() used by an updated iwlwifi.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D34349
DECLARE_FLEX_ARRAY can be used inside a structure. On FreeBSD due to
-Wgnu-variable-sized-type-not-at-end this yields an error. Use [0]
instead of [] to overcome this.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Reviewed by: hselasky
Differential Revision: https://reviews.freebsd.org/D34350
Rather than returning 0 (which is BUS_PROBE_SPECIFIC) return
BUS_PROBE_DEFAULT to give other drivers a possible chance too
to attach.
Reported by: jhb
Reviewed by: hselasky, jhb, imp
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D34317
