instead of kernel_map size to prevent kernel memory exhaustion
by mbufs and a subsequent panic on physical page allocation
failure.
On architectures without a direct map all mbuf memory (except
for jumbo mbufs larger than PAGE_SIZE) comes from kmem_map.
It is the limiting factor hence.
For architectures with a direct map using the size of kmem_map
is a good proxy of available kernel memory as well. If it is
much smaller the mbuf limit may be sub-optimal but remains
reasonable, while avoiding panics under exhaustion.
The overall mbuf memory limit calculation may be reconsidered
again later, however due to the many different mbuf sizes and
different backing KVM maps it is a tricky subject.
Found by: pho's new network stress test
Pointed out by: alc (kmem_map instead of kernel_map)
Tested by: pho
LoopVectorizer: Fix 15830. When scalarizing and unrolling stores make
sure that the order in which the elements are scalarized is the same
as the original order.
This fixes a miscompilation in FreeBSD's regex library.
This should fix lib/libc/regex/regcomp.c at -O3 with clang 3.3 r178860
on CPUs with SSE. Before this change, the vectorizer could incorrectly
rearrange the second loop in computejumps(), leading to possibly invalid
entries in the re_gets::charjump table.
The net result was that for example "sed s/@CC@/foo/" failed to work
correctly, leading to trouble with many configure scripts.
descriptors. Prior to this change the device would only work with guests
that chose to use indirect descriptors.
Modify the device reset callback to actually reset the device state.
Submitted by: Tycho Nightingale (tycho.nightingale@pluribusnetworks.com)
If the bs= expr operand is specified and no conversions other than sync,
noerror, or notrunc are requested, the data returned from each input
block shall be written as a separate output block.
In particular, when both bs=size and conv=sparce were specified, the
resulted file was fully filled, instead of sparce.
PR: standards/177742
Submitted by: Matthew Rezny <mrezny@hexaneinc.com>
MFC after: 2 weeks
duplicate ACK make sure we actually have new data to send.
This prevents us from sending unneccessary pure ACKs.
Reported by: Matt Miller <matt@matthewjmiller.net>
Tested by: Matt Miller <matt@matthewjmiller.net>
MFC after: 2 weeks
and CHECK_GIDS to exist since r152680. This is only needed for
installworld. The documented procedure of running mergemaster -p
to check for missing users is only needed for installworld, not
for installkernel. This fixes auditdistd incorrectly being
required for installkernel.
PR: misc/174405
Approved by: bapt
- use const where appropriate
- use static where appropriate
- use explicit checks checks for error conditions
Reviewed by: sbruno
Approved by: cperciva (mentor)
Obtained by: DragonFlyBSD
- Add an empty line in usage() according to style(9)
PR: bin/177076
Submitted by: Fernando <fernando.apesteguia@gmail.com>
Approved by: cperciva (mentor)
impossible to set quota and reservation on pools lower than version 22.
Problem has been reported and a solution discussed with vendor.
Illumos ZFS issues:
3739 cannot set zfs quota or reservation on pool version < 22
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reported by: Steve Wills <swills@FreeBSD.org>
MFC after: 3 days
Partially implement generic_bs_*_8() for MIPS platforms.
This is known to work with TARGET_ARCH=mips64 with FreeBSD/BERI.
Assuming that other definitions in cpufunc.h are correct it will
work on non-o64 ABI systems except sibyte. On sibyte and o32 systems
generic_bs_*_8() will remain panic() implementations.
Sponsored by: DARPA, AFRL
Reviewed by: imp, jmallett (older versions)
