which just mark areas which are empty due to issues with the alignment
of already-existing fields. This defines several unrelated variables
in one shot, because most of the work for updating kinfo_proc is making
sure the sizeof(struct kinfo_proc) remains the same across all hardware
platforms, and that no space is wasted on any platform due to alignment
issues with the new variables.
Submitted by: some by Cyrille Lefevre, some by me
unnecessary because cpu_setregs() and/or npxinit() always sets CR0_TS
during system initialization, and CR0_TS is set in the next statement
(fpstate_drop()) if necessary after system initialization. Setting
it unnecessarily was less than a pessimization since it broke the
invariant that the npx can be used without an npxdna() trap if
fpucurthread is non-null. The broken invariant became harmful when I
added an fnclex to npxdrop().
Removed setting of CR0_MP in exec_setregs(). This was similarly
unnecessary but was harmless.
Updated comments (mainly by removing them). Things are simpler now
that we have cpu_setregs() and don't support a math emulator or pretend
to support not having either a math emulator or an npx.
Removed the ifdef for avoiding setting CR0_NE in the !SMP case in
cpu_setregs(). npx_probe() should reverse the setting if it wants to
force IRQ13 exception handling for testing.
%P0, just SYMBOL_REF) into GCC 3.3.3. This fixes the bad C++ thunks code
generation building Firefox on AMD64.
Submitted by: Sean McNeil <sean@mcneil.com>
the *filename* and not the pid_file(!). Stupid brain-fault on my part.
This could cause a segfault under -neworder if newsyslog had to rotate
multiple files, and later ones had specifed the 'N' flag.
Bug first reported by: le
MFC after: 3 days
kicking and screaming into the 1980's. This change converts most of
the markup from man(7) to mdoc(7) format, and I believe it removes or
updates everything that was flat out wrong. However, much work is
still needed to sanitize the markup, improve coverage, and reduce
overlap with other manpages. Some of the sections would better belong
in a philosophy_of_w_kahan.3 manpage, but they are informative and
remain at least as reminders of topics to cover.
Reviewed by: doc@, trhodes@
lock state. Convert tsleep() into msleep() with socket buffer mutex
as argument. Hold socket buffer lock over sbunlock() to protect sleep
lock state.
Assert socket buffer lock in sbwait() to protect the socket buffer
wait state. Convert tsleep() into msleep() with socket buffer mutex
as argument.
Modify sofree(), sosend(), and soreceive() to acquire SOCKBUF_LOCK()
in order to call into these functions with the lock, as well as to
start protecting other socket buffer use in their implementation. Drop
the socket buffer mutexes around calls into the protocol layer, around
potentially blocking operations, for copying to/from user space, and
VM operations relating to zero-copy. Assert the socket buffer mutex
strategically after code sections or at the beginning of loops. In
some cases, modify return code to ensure locks are properly dropped.
Convert the potentially blocking allocation of storage for the remote
address in soreceive() into a non-blocking allocation; we may wish to
move the allocation earlier so that it can block prior to acquisition
of the socket buffer lock.
Drop some spl use.
NOTE: Some races exist in the current structuring of sosend() and
soreceive(). This commit only merges basic socket locking in this
code; follow-up commits will close additional races. As merged,
these changes are not sufficient to run without Giant safely.
Reviewed by: juli, tjr
ip_ctloutput(), as it may need to perform blocking memory allocations.
This also improves consistency with locking relative to other points
that call into ip_ctloutput().
Bumped into by: Grover Lines <grover@ceribus.net>
output to permanently (not ephemerally) go to the console. It is also
sent to any other console specified by TIOCCONS as normal.
While I'm here, document the kern.log_console_output sysctl.
we will fail later and we can miss good kernel source tree directory.
I found this trying to compile kld module and it finds 'conf/kmod.mk'
in '../..', but it fails later, because there is no 'kern' directory,
but there is valid kernel source tree still in /usr/src/sys/.
NULL ifc.ifc_buf pointer, to determine the expected buffer size.
The submitted fix only takes account of interfaces with an AF_INET
address configured. This could no doubt be improved.
PR: kern/45753
Submitted by: Jacques Garrigue (with cleanups)
was received on a broadcast address on the input path. Under certain
circumstances this could result in a panic, notably for locally-generated
packets which do not have m_pkthdr.rcvif set.
This is a similar situation to that which is solved by
src/sys/netinet/ip_icmp.c rev 1.66.
PR: kern/52935
be suspended in thread_suspend_check, after they are resumed, all
threads will call thread_single, but only one can be success,
others should retry and will exit in thread_suspend_check.
