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cores by the same amount, i.e. if you do hw.setperf=50 both cores will
be scaled to the opearting state corresponing to 50%. Tested by many with
est (mainly on core2duo machines like X60 thinkpads). Only enable est
during GENERIC.MP build no one tested powernow.
ok art@
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From NetBSD, miod@ ok
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From mickey.
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to separate locking, on most modern machines this is not enough
since operations on short types touch other short types that share the
same word in memory.
Merge pg_flags and pqflags again and now use atomic operations to change
the flags. Also bump wire_count to an int and pg_version might go
int as well, just for alignment.
tested by many, many. ok miod@
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Also replace "newfs -O" with "newfs -O 0" now that -O takes an option.
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done until we put them on the freelist and risk them being reused.
If the page is reused before being shot, there's a risk that it's still
in the PDE TLB and speculative execution might use data from it to
load TLBs. If the page isn't zeroed anymore we risk loading bogus
tlbs from it.
Inspired by a similar change in NetBSD.
toby@ ok, tested by many at the hackathon.
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overflow the stack, we run into the symbol table (not critical) instead
of overwriting the page tables.
From mickey, ok art@, ok toby@
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We need to poke the other CPU so that it processes the AST immediately
and doesn't wait for the next interrupt or syscall.
Since IPIs really shouldn't process ASTs, we need to trigger a soft
interrupt on the destination CPU to process the AST. But since we can't
send soft interrupts to other CPUs, we send an IPI, that triggers a soft
interrupt that in turn processes the AST.
Also, this marks the beginning of moving to slightly better IPI mechanism
of short and optimized IPIs instead of the large and complicated IPI
infrastructure we're using now.
tested by many, ok tholo@
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kmem_object) just so that we can remove them, just use pmap_extract
to get the pages to free and simplify a lot of code to not deal with
the list of intrsafe maps, intrsafe objects, etc.
miod@ ok
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Mouse. Currently limited to USB mice.
Adapted from a diff from Gareth <garf@loveandnature.co.za> on tech@
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to "pg_flags" and "pg_version", so that they are a bit easier to work with.
Whoever uses generic names like this for a popular struct obviously doesn't
read much code.
Most architectures compile and there are no functionality changes.
deraadt@ ok ("if something fails to compile, we fix that by hand")
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ok millert jasper mbalmer
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signal delivery more reliable in some cases when a process switches
cpu.
kettenis@ ok
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for amd64 added by myself and while here nuke some whitespace.
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seem to have reached this limit.
ok marco@, looks ok ckuethe@
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ok otto@
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lots of poking by jsg@
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Spotted by Stefan Sperling <stsp AT tsp.in-berlin.de> when reviewing
his piix speedstep diff.
ok tedu@
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intrdefs.h that is inlucded first thing in intr.h.
eyeballed for sanity by pedro@
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of new fields in the future is less disruptive. This is done similar
to how struct proc is handled for ps(1). ok jmc (man page changes)
tested fkr simon, and more suggestions from millert
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out for me.
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tlb shootdowns in the reaper.
mickey@ ok
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way, rather than requiring some glue in each machines mainbus probe.
it is still commented out.
based on a discussion with miod@ ok marco@ deraadt@
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The "lapic" timer is ripped out since it wasn't actually a lapic timer,
but a hacked up tsc timer with some synchronization for MP. There is no
tsc timer right now since they are very unreliable on MP systems, systems
with apm, and systems that change the cpu clock. Which basically means
every modern machine out there. We're running with the i8259 timer now.
deraadt@ ok
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implementation of a RAID 1 is included in this but it does not deal with
failures yet. Disabled in GENERIC.
Suggestions from and ok beck@ miod@ krw@ dlg@ deraadt@
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w/ in a more simple way as other archs do; art@ ok
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support, so revert my previous commit
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it's a good idea to use atomic.h operations on it. This mechanic
change updates all bit operations on p_flag to atomic_{set,clear}bits_int.
Only exception is that P_OWEUPC is set by MI code before calling
need_proftick and it's automatically cleared by ADDUPC. There's
no reason for MD handling of that flag since everyone handles it the
same way.
kettenis@ ok
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"yes man" mickey@ (I think that meant 'ok').
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Aaron Linville <aaron@linville.org> in PR 5398.
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ok art
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ok jordan
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with %llu; ok miod
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the freezes many of us are seeing (especially on amd64 machines running
OpenBSD/i386).
Much testing by nick@ (as always - thanks!), hugh@, ian@, kettenis@
and Sam Smith (s (at) msmith (dot) net).
Requested by, input from, and ok deraadt@ ok art@, kettenis@, miod@
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ok miod@
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degraded performance.
requested by deraadt@
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rt and such; tested and ok miod drahn
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ok art@
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for a bare FAT12/16/32 filesystem. If one is found, spoof it as 'i'.
This enables iPod shuffles and other umass devices that are shipped
with a bare FAT32 filesystem to be used as install media. And
generally makes things easier for the user just trying to mount some
media, e.g. floppies.
Does not make it safe to write a disklabel or MBR on such a device!
That will still obliterate the FAT filesystem.
Help and suggestions from tom@ and deraadt@. Feedback and suggestions
for future enhancements from espie@ mickey@ and peter@.
ok tom@ deraadt@
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