With mac80211 operations (MO) tracing on we have seen some ill-ordered
executions of MO functions. In order to limit visibility of the mac80211
sta, pass the internal version into lkpi_80211_mo_sta_state() and only
there convert to the argument needed. This mostly eases tracing and
debugging.
Sposnored by: The FreeBSD Foundation
MFC after: 3 days
When a breakpoint exception is raised, the saved value of %rip points to
the instruction following the breakpoint. However, when fetching the
value of %rip using regs[], it's more natural to provide the address of
the breakpoint itself, so modify the kinst and fbt providers accordingly.
Reported by: khng
Reviewed by: christos, khng
MFC after: 2 months
Differential Revision: https://reviews.freebsd.org/D37218
When syncookies are in adaptive mode they may be active or inactive.
Expose this status to users.
Suggested by: Guido van Rooij
Sponsored by: Rubicon Communications, LLC ("Netgate")
It is called only from tcp_input() and always has valid parameter.
Reviewed by: rscheff, tuexen
Differential revision: https://reviews.freebsd.org/D37115
The suppresion was added in 5f311da2cc with no explanation in the
commit message of the exact problem that was fixed. In the BSDCan
2006 talk [1], slides 12 to 14, we can find that it seems that there
was some problem with the TIME_WAIT state not properly being handled
on the remote side (also FreeBSD!), and this switching off the
suppression had hidden the problem. The rationale of the change was
that other stacks may also be buggy wrt the TIME_WAIT.
I did not find the actual problem in TIME_WAIT that the suppression
has hidden, neither a commit that would fix it. However, since that
time we started to handle SYNs with RFC5961 instead of RFC793, see
3220a2121c. We also now have the tcp-testsuite [2], that has full
coverage of all possible scenarios of receiving SYN in TIME_WAIT.
This effectively reverts 5f311da2cc
and 6ee79c59d2.
[1] https://www.bsdcan.org/2006/papers/ImprovingTCPIP.pdf
[2] https://github.com/freebsd-net/tcp-testsuite
Reviewed by: rscheff
Discussed with: rscheff, rrs, tuexen
Differential revision: https://reviews.freebsd.org/D37042
The assertion was incorrectly removed in 0d7445193a. The leak of
a TIME-WAIT state into tfb_do_segment_nounlock method was fixed in
31bc602ff8. The TIME-WAIT connections are processed by the main
tcp_input() always.
The fasttrap pid provider has been in place for a long time, but stopped
getting built by efe88d92da in preparation for 64-bit atomics. 32-bit
emulation of 64-bit atomics was added in 9aafc7c05.
MFC after: 3 weeks
'newpc' needs set in the "common" case. With this, the trivial test
$ dtrace -n 'pid$target:libc:strlen:entry { trace(timestamp); }' -p
<pid>
now works.
MFC after: 3 weeks
Assertions suggest that the loop in iommu_gas_fini_domain is executed
zero times, so remove it.
Reviewed by: alc, kib
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D37204
MODULES_OVERRIDE has traditionally taken precedence over EXTRA_MODULES
and WITHOUT_MODULES as the exact list of modules to build. Over time,
things have been added that has broken this. Move the .endif that makes
this the case to the right place. The so called 'ALL_MODULES' option is
the only thing with higher precedence, but it's not quite all the
options anymore (though it is much more of them, and doesn't quite
work on !x86).
Sponsored by: Netflix
Make the dtb/dtbo files with less noise. Remove echo statements, but add
back the call for the non-meta builds to replace the removed noise.
Suggetions by: jrtc27
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D37073
The previous commit added references to to the syscallnames arrays, but
failed to add the relevant source files to the module build. Thus, the
modules failed to load due to missing symbols.
Reported by: cy
Fixes: 1da65dcb1c ("linux: populate sv_syscallnames in each sysentvec")
Sponsored by: The FreeBSD Foundation
Sort the entries alphabetically, and list them with one entry per line.
This makes the diffs much cleaner when adding or removing a new entry,
as I will do in the next commit.
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Wake On LAN packets sent by wake(8) via BPF are lost if txcsum is
enabled. These fall into the "other protocol" case where gen_parse_tx
did nothing. Add code to shift up to gen_tx_hdr_min bytes of the
packet along with the Ethernet header in this case.
Maintain a pointer to an element in the domain map that is left of any
sufficiently large free gap in the tree and start the search for free
space there, rather than at the root of the tree. On find_space, move
that pointer to the leftmost leaf in the subtree of nodes with
free_down greater than or equal to the minimum allocation size before
starting the search for space from that pointer. On removal of a node
with address less than that pointer, update that pointer to point to
the predecessor or successor of the removed node.
In experiments with netperf streaming, this reduces by about 40% the
number of map entries examined in first-fit allocation.
Reviewed by: alc, kib
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D36624
Some architectures will pretty-print a system call trap in the
backtrace. Rather than printing the symbol, use the syscallname()
function to pull the string from the sv_syscallnames array corresponding
to the process. This simplifies the function somewhat.
Mostly, this will result in dropping the "sys" prefix, e.g. "sys_exit"
will now be printed simply as "exit".
Make two minor tweaks to the function signature: use a u_int for the
syscall number since this is a more correct type (see the 'code' member
of struct syscall_args), and make the thread pointer the first argument.
The latter is more natural and conventional.
Suggested by: jrtc27
Reviewed by: jrtc27, markj, jhb
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D37200
This allows the syscallname() function to give a usable result for Linux
ABIs.
Reported by: jrtc27
Reviewed by: jrtc27, markj, jhb
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D37199
This commit brings back the driver from FreeBSD commit
f187d6dfbf plus subsequent fixes from
upstream.
Relative to upstream this commit includes a few other small fixes such
as additional INET and INET6 #ifdef's, #include cleanups, and updates
for recent API changes in main.
Reviewed by: pauamma, gbe, kevans, emaste
Obtained from: git@git.zx2c4.com:wireguard-freebsd @ 3cc22b2
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D36909
Now that armv[45] are removed, simplify some tests for armv[67] that are
now either always true, or always true when we're on arm.
Sponsored by: Netflix
Ah, the joys of pushing a commit with a dirty editor buffer that all the
checks in git didn't catch... Also, my eyeballs missed it too :(.
Fixes: ba9f71ddec
Noticed by: jrtc27
Sponsored by: Netflix
When flushing the UART, we need to drain manually if LSR_TEMT is
*not* asserted, aka. if the transmit FIFO is not empty.
Reported by: void <void@f-m.fm>
Fixes: c4b68e7e53 "ns8250: Check if flush via FCR succeeded"
Differential Revision: https://reviews.freebsd.org/D37185
