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implementation does not support it and handles it as `h'.
ok jsing@
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copyout()s instead of altering the in-use variable, and to also
return the full length via oldlenp in that case as documented.
ok jsing@ (problem pointed out by matthew@)
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problem has been tracked down. This fixes the sharing of the signal
handling state: shared bits go in sigacts, per-rthread bits goes in
struct proc.
ok deraadt@
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have the necessary rights, return f_offset=-1 and f_seek=0.
ok tedu@, matthew@
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i386. Stop abusing it on other archs for controling a shutdown by
pressing the soft power button:
* Add a MI sysctl hw.allowpowerdown; if set to 1 (the default) it
allows a power button shutdown.
* Make acpi(4)/acpibtn(4) honor hw.allowpowerdown.
* Switch the various power button intercepts on landisk, sgi, sparc64
and zaurus over to hw.allowpowerdown.
* Garbage collect the machdep.kbdreset sysctl on all archs other than
amd64 and i386.
ok miod@
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address should be, fixes broken fstat output for v6 socket connections.
Problem noticed by dhill@, ok todd@, "i have no idea what that diff is
touching, but it sure looks ok" halex@
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until they're zombies and then send them signals (for intr mounts). Until
that is untangled, the sigacts change is unsafe. sthen@ was the victim
for this one
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be shared (p_sigignore, p_sigcatch, P_NOCLDSTOP, P_NOCLDWAIT) moves
to struct sigacts, wihle stuff that should be per rthread (ps_oldmask,
SAS_OLDMASK, ps_sigstk) moves to struct proc. Treat the coredumping
state bits (ps_sig, ps_code, ps_type, ps_sigval) as per-rthread
until our locking around coredumping is better.
Oh, and remove the old SunOS-compat ps_usertramp member.
"I like the sound of this" tedu@
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to on, if POOL_DEBUG is compiled in, so that boot-time pool corruption
can be found. When the sysctl is turned off, performance is almost as
as good as compiling with POOL_DEBUG compiled out. Not all pool page
headers can be purged of the magic checks.
performance tests by henning
ok ariane kettenis mikeb
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With this change bufcachepercent will be the percentage of dma reachable
memory that the buffer cache will attempt to use.
ok deraadt@ thib@ oga@
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in libkvm with the stable-ABI versions that are currently named
KERN_PROC2, kvm_get{proc,argv,envv}2(). The latter names and symbols
will continue to be supported for a few releases.
Committing now that they ports people have had a couple releases
to update pkgs that usd the old functions
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by default, adjust comments in sysctl.conf; ok markus, tedu, djm, miod
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tedu agreed with an idea, tested by Luis Useche and me; ok deraadt
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userland side of.
pointed out by claudio@ after i embarassed myself saying "yes, its there!"
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ok deraadt@ krw@
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machdep.console_device that's only implemented on a few architectures.
ok deraadt@, miod@
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so that the process-level stuff is to/from struct process and not
struct proc. This fixes a bunch of problem cases in rthreads.
Based on earlier work by blambert and myself, but mostly written
at c2k10.
Tested by many: deraadt, sthen, krw, ray, and in snapshots
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rwlock, the thread will release biglock if it sleeps, means that
atomicity from before the rw_enter() to after it is not guaranteed.
The change didn't address those, so pulling it until it does.
"go for it" tedu@
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grabbing allproclk in proc_zap(); skip such processes in sysctl(KERN_PROC*)
and handle the NULL pointer in ddb's ps.
ok tedu@
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from small kernels
"yes" deraadt@
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getpeereid(2), but also supplies the remote pid. This is supplied in
a 'struct sockpeercred' (unlike Linux -- they showed how little they
know about real unix by calling theirs 'struct ucred').
ok guenther ajacoutot
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KERN_FILE2 (or their libkvm wrappers) for more information than the
running implementation knows how to provide.
ok millert@ deraadt@
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(not done) hasn't changed, but now it's less work to test things.
ok art deraadt
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do a pdfree() way before they remove themself from the allproc
list. This prevents a null deref found by todd@.
Joint work with mikeb
OK millert@, tedu@
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gcc4 from complaining about casting a pointer to an integer type of different
size.
ok guenther@, jsg@
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by returning ENXIO instead of ENOENT, to essentially indicate hotplug
sensor that has gone away. Accessing beyond the end of the sensordev
list still returns ENOENT, so that you can see there are no further devices.
ok kettenis oga
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list walkers in sysctl that can block. As a reward, no more vslock.
With some feedback from art, guenther, phessler. ok guenther.
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/dev/mem to be direct instead of going through kvm_getprocs(), as
that function is going to get more an more broken as we move stuff
from struct proc to struct process for rthreads. To minimize the
code copying, put the common logic of filling in a kinfo_proc2
structure into a macro FILL_KPROC2() in <sys/sysctl.h> for use from
both the kernel and user-space. This also hides the KERN_PROC
#define behind "#if defined(_KERNEL)||defined(_LIBKVM)", as it's
deprecated.
Positive feedback from millert and blambert; so committing to unblock
further rthreads work.
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No longer allocate a static amount of memory for messages in MD
boot path; message queues, message metadata, and message data now
all use dynamic memory, which means that runtime sysctls should now
be trivial to implement.
Since I'm going to be around all week to fix any breakage, this should
probably just go in now.
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after c2k9
allows buffer cache to be extended and grow/shrink dynamically
tested by many, ok oga@, "why not just commit it" deraadt@
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Man page bits adapted from FreeBSD. OK miod@
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is how sysctl finds them, so it can *never* be renumbered again, and must
stay
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three
commits:
1) The sysctl allowing bufcachepercent to be changed at boot time.
2) The change moving the buffer cache hash chains to a red-black tree
3) The dynamic buffer cache (Which depended on the earlier too).
ok on the backout from marco and todd
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along with vnode type-specific info to make it more useful for fstat(1).
OK deraadt@
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This commit won't change the default behaviour of the system unless the
buffer cache size is increased with sysctl kern.bufcachepercent. By default
our buffer cache is 10% of memory, which with this commit is now treated
as a low water mark. If the buffer cache size is increased, the new size
is treated as a high water mark and the buffer cache is permitted to grow
to that percentage of memory.
If the page daemon is invoked, the page daemon will ask the buffer cache
to relenquish pages. if the buffer cache has more than the low water mark it
will relenquish pages allowing them to be consumed by uvm. after a short
period the buffer cache will attempt to re-grow back to the high water mark.
This permits the use of a large buffer cache without penalizing the available
memory for other purposes.
Above the low water mark the buffer cache remains entirely subservient to
the page daemon, so if uvm requires pages, the buffer cache will abandon
them.
ok art@ thib@ oga@
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size on a running system.
ok art@, oga@
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in sysctl hw.ncpufound; ok miod kettenis
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value of kern.clockrate with sysctl(3) correctly sets errno on failure.
PR #6040, ok tedu@
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sleeping calls. Since we are simply operating on another process'
vmspace, grab a (refcounted) copy of that pointer and use that instead.
originally spotted by kurt, discussed with art
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ok art@
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to the user or the superuser. Display * for those fields instead. From
PR 5113, but modified to use copyout correctly.
comments from tedu, ok from others
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ok deraadt@
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machines with more than 4GB of memory. Make sysctl(8) print values obtained
using these sysctls for hw.physmem and hw.usermem.
ok krw@, miod@
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ok tedu@ kettenis@
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