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Diff for /www/73.html between version 1.50 and 1.51

version 1.50, 2023/04/08 01:10:55

version 1.51, 2023/04/08 01:52:39

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<li>Introduced <a

href="https://man.openbsd.org/clockintr.9">clockintr(9)</a>, a

machine-independent clock interrupt scheduler. Switched all

architectures to use this new kernel subsystem.

architectures to use the new subsystem.

<li>Added a priority queue to <a

href="https://man.openbsd.org/clockintr.9">clockintr(9)</a>.

<li>Introduced a new kern.autoconf_serial <a

href="https://man.openbsd.org/sysctl.8">sysctl(8)</a> that can be used

by userland to monitor state changes of the kernel device tree.

<li>Fixed <a href="https://man.openbsd.org/pmap.9">pmap(9)</a> bugs

involving entering an executable mapping for a page before

synchronizing the data and instruction cache on arm64 and riscv64.

<li>Removed copystr(9) from public API.

<li>Removed copystr(9) from the public API.

<li>Add <a

<li>Added <a

href="https://man.openbsd.org/getnsecruntime.9">getnsecruntime(9)</a>

href="https://man.openbsd.org/getnsecruntime.9">getnsecruntime(9)</a>.

to the kernel timecounting API. Together with getbinruntime(), it

Offers fast access to the system runtime clock at the cost of precision.

provides a fast, monotonic clock that only advances while the system

is not suspended.

<li>Add detection for Spectre-BHB Branch History Injection

vulnerability related CLRBHB, ECBHB and CSV2_3/HCXT feature bits.

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href="https://man.openbsd.org/munmap.2">munmap(2)</a>, and <a

href="https://man.openbsd.org/mprotect.2">mprotect(2)</a>.

<li>Unlocked <a href="https://man.openbsd.org/sched_yield.2">sched_yield(2)</a>.

<li>Added support for per-cpu event counters, to be used for clock and

<li>Added support for per-CPU counters to

IPI counters where the event counted occurs across all CPUs in the

<a href="https://man.openbsd.org/evcount.9">evcount(9)</a>.

system.

Useful for counting events that are prone to occur simultaneously

across multiple CPUs, like clock interrupts and IPIs.

<li>Moved <a href="https://man.openbsd.org/pf.4">pf(4)</a> purge

tasks out from under the kernel lock.

<li>Unlocked <a href="https://man.openbsd.org/ioctl.2">ioctl(2)</a>

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<li>VMM/VMD improvements

<ul>

<li>Updated <a href="https://man.openbsd.org/vmm.4">vmm(4)</a> to

allow guests to read MSR_HWCR and MSR_PSTATEDEF, which is necessary to

permit SVM guests read access to MSR_HWCR and MSR_PSTATEDEF.

determine the TSC frequency on AMD families 17h and 19h.

Guests can use these registers on AMD 17h and 19h hosts to

determine the TSC frequency without calibrating against a

second clock.

<li>Allocated reference for vm and vcpu SLISTs in <a

href="https://man.openbsd.org/vmm.4">vmm(4)</a>, keeping vmm from

triggering excessive wakeup calls while iterating through the list of

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that contain a single member.

<li>Fixed <a href="https://man.openbsd.org/ed.1">ed(1)</a> to print

bytes read/written and the ? prompt to stdout, not stderr.

<li>Modified the vmstat view in <a

<li>Changed the vmstat view in <a

href="https://man.openbsd.org/systat.1">systat(1)</a> to measure

elapsed time using <a

elapsed time with <a

href="https://man.openbsd.org/clock_gettime.2">clock_gettime(2)</a>.

href="https://man.openbsd.org/clock_gettime.2">clock_gettime(2)</a>

<li>Implemented periodic display in <a

instead of statclock ticks.

<li>Improved the periodic display in <a

href="https://man.openbsd.org/iostat.8">iostat(8)</a>.

<li>Corrected <a href="https://man.openbsd.org/top.1">top(1)</a>

<li>Fixed an edge case in <a href="https://man.openbsd.org/top.1">top(1)</a>

display of online CPUs which can change based on the <a

where summary statistics for offline CPUs were displayed.

href="https://man.openbsd.org/sysctl.2">sysctl(2)</a> sysctl setting.

<li>Added support for a personal <a

href="https://man.openbsd.org/units.1">units(1)</a> library by passing

-f multiple times.

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name of each library before relinking as a signal to the operator that

boot has not stalled.

<li>Added the <a

<li>Added a -w flag to <a

href="https://man.openbsd.org/audioctl.8">audioctl(8)</a> -w option to

href="https://man.openbsd.org/audioctl.8">audioctl(8)</a> for

display variables periodically.

displaying variables periodically.

<li>Added short options for <a

href="https://man.openbsd.org/timeout.1">timeout(1)</a> --foreground

and --preserve-status.<br>

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<li>Added or improved wireless network drivers:

<ul>

<li>Bumped tsleep timeout for <a

<li>Increased the timeout for <a

href="https://man.openbsd.org/bwfm.4">bwfm(4)</a> PCI devices to help

href="https://man.openbsd.org/bwfm.4">bwfm(4)</a> PCI devices to

prevent failures loading firmware, particularly on Apple M2 laptops.

avoid spurious firmware load failures, particularly on Apple M2 laptops.

<li>Implemented alternative mailbox handling mechanism required by

newer <a href="https://man.openbsd.org/bwfm.4">bwfm(4)</a> firmware.

<li>Fixed <a href="https://man.openbsd.org/bwfm.4">bwfm(4)</a>

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configuring IPv6. This allows non-multicast interfaces such as

point-to-point interfaces and the NBMA / point-to-multipoint

interfaces like mpe(4), mgre(4) and wg(4) to work with IPv6.

<li>Use the new <a

<li>Measure the TCP_KEEPALIVE timeout with <a

href="https://man.openbsd.org/getnsecruntime.9">getnsecruntime(9)</a>

timer to check the TCP_KEEPALIVE timer only against the system

instead of the the system uptime.

runtime, not the uptime. Prevents TCP connections to fail after

Prevents TCP connections from needlessly failing en masse after

waking up from suspend.

waking a system from suspend.

<li>Used stoeplitz (symmetric Toeplitz hash algorithm) to generate a

hash/flowid for <a href="https://man.openbsd.org/pf.4">pf(4)</a> state

keys. With this change, pf will hash traffic the same way that