Mike Silbersack 289016f2d1 Put some concrete limits on pipe memory consumption: ... - Limit the total number of pipes so that we do not exhaust all vm objects in the kernel map. When this limit is reached, a ratelimited message will be printed to the console. - Put a soft limit on the amount of memory consumable by pipes. Once the limit has been reached, all new pipes will be limited to 4K in size, rather than the default of 16K. - Put a limit on the number of pages that may be used for high speed page flipping in order to reduce the amount of wired memory. Pipe writes that occur while this limit is exceeded will fall back to non-page flipping mode. The above values are auto-tuned in subr_param.c and are scaled to take into account both the size of physical memory and the size of the kernel map. These limits help to reduce the "kernel resources exhausted" panics that could be caused by opening a large number of pipes. (Pipes alone are no longer able to exhaust all resources, but other kernel memory hogs in league with pipes may still be able to do so.) PR: 53627 Ideas / comments from: hsu, tjr, dillon@apollo.backplane.com MFC after: 1 week		2003-07-08 04:02:31 +00:00
..
_iovec.h	Move the typedef for size_t into _iovec.h, so that size_t is available	2003-02-26 20:16:58 +00:00
_label.h	Rename MAC_MAX_POLICIES to MAC_MAX_SLOTS, since the variables and	2003-05-08 19:49:42 +00:00
_lock.h	Renamed the idempotency identifier to match the file name.	2002-06-07 14:37:09 +00:00
_mutex.h	Save 16 bytes per mutex if MUTEX_PROFILING is not defined.	2002-12-29 11:14:41 +00:00
_semaphore.h	Add the rest of the kernel support for the sem_ API in kern/uipc_sem.c.	2002-09-19 00:43:32 +00:00
_sigset.h	Split 4.x and 5.x signal handling so that we can keep 4.x signal	2002-10-25 19:10:58 +00:00
_timespec.h	Simplify struct __timespec, fix style bugs, add an XXX comment.	2003-02-26 16:50:01 +00:00
_timeval.h	Move struct timeval to its own header so that it can be shared between	2002-12-31 04:08:41 +00:00
_types.h	Move details of dev_t (and udev_t) to <sys/_types.h>.	2003-03-28 15:27:30 +00:00
aac_ioctl.h
acct.h	Move details of dev_t (and udev_t) to <sys/_types.h>.	2003-03-28 15:27:30 +00:00
acl.h	Provide prototypes for new ACL system calls to manipulate ACLs "by	2002-12-29 20:30:00 +00:00
agpio.h	Document a few acronyms.	2003-02-08 20:42:26 +00:00
aio.h
alq.h	Add an explicit credential argument to alq_open() to allow the caller to	2003-06-22 22:28:56 +00:00
assym.h
ata.h	Add define for SATA150	2003-05-18 16:40:38 +00:00
bio.h	Retire the experimental bio_taskqueue(), it was not quite as usable as	2003-04-12 09:13:01 +00:00
bitstring.h	Finish the repocopy of bitstring.h to sys so it can be used	2003-06-13 19:40:13 +00:00
blist.h	Remove all use of the LOG2() macro/inline, undoing some non-optimal cruft	2003-01-11 01:09:51 +00:00
buf.h	Get rid of the b_spc specialty field in struct buf by using an already	2003-06-16 07:18:39 +00:00
bus_dma.h	Mega busdma API commit.	2003-07-01 15:52:06 +00:00
bus.h	Add a resource_disabled() helper function that returns true (non-zero) if	2003-07-02 16:01:38 +00:00
callout.h
cdefs.h	Remove the definition of alloca(), it does not belong here.	2003-06-15 10:59:44 +00:00
cdio.h	Make bitfields plain old u_int. u_int16_t makes no sense.	2003-04-30 12:07:32 +00:00
cdrio.h	* Add CDRIOC{READ,WRITE}SPEED ioctls to cd(4). Units are in KB/sec.	2002-10-18 22:03:39 +00:00
chio.h	Use symbolic constants instead of "4".	2003-05-31 16:54:37 +00:00
clist.h
clock.h	Add a generic implementation of inittodr() and resettodr(), as well as	2002-04-04 23:39:10 +00:00
condvar.h	Part 1 of KSE-III	2002-06-29 17:26:22 +00:00
conf.h	- Add vm_paddr_t, a physical address type. This is required for systems	2003-03-25 00:07:06 +00:00
cons.h	Change the console interface to pass a "struct consdev *" instead of a	2003-02-20 20:54:45 +00:00
consio.h	1. Allow information about current history size be retrieved using ioctl(2);	2002-08-19 16:32:09 +00:00
copyright.h	We've had something like this file since 1992, so therefore this file	2003-01-07 04:37:40 +00:00
ctype.h	Resolve conflicts arising from the ACPI CA 20021118 import.	2002-11-27 18:09:20 +00:00
dataacq.h
device_port.h
devicestat.h	Add an XXX comment with a TODO item for next time we run a revision	2003-05-31 21:10:01 +00:00
digiio.h
dir.h
dirent.h	Fix namespace issues by using the relatively new visibility	2002-09-10 18:12:16 +00:00
disk.h	I think the divorce successed, so stop #including <geom/geom_disk.h>	2003-04-01 18:55:04 +00:00
disklabel.h	Sanitize the LABELSECTOR & LABELOFFSET definitions:	2003-06-07 09:06:39 +00:00
diskmbr.h	Add definitions for location of the magic sequence and the length	2003-04-13 21:52:22 +00:00
diskpc98.h	Remove DIOCGPC98 ioctl.	2003-05-01 14:40:16 +00:00
dkstat.h	#include <sys/resource.h> to limit ports damage.	2003-05-07 15:26:43 +00:00
domain.h
dvdio.h
elf32.h	Move the definition of ElfN_Hashelt to common headers. The only platform	2002-05-30 08:32:18 +00:00
elf64.h	Move the definition of ElfN_Hashelt to common headers. The only platform	2002-05-30 08:32:18 +00:00
elf_common.h	Add defines required for TLS support.	2003-06-18 16:38:22 +00:00
elf_generic.h	Infrastructure tweaks to allow having both an Elf32 and an Elf64 executable	2002-07-20 02:56:12 +00:00
endian.h	Pointy hat commit:	2003-04-03 11:32:01 +00:00
errno.h	Copyin and copyout are only possible from a process-native thread,	2002-10-07 06:25:26 +00:00
event.h	Tweak the definition of the EV_SET macro so that it evaluates each	2003-02-02 19:39:51 +00:00
eventhandler.h	Oops, SHUTDOWN_PRI_LAST should be EVENTHANDLER_PRI_LAST, not	2003-03-24 21:24:37 +00:00
eventvar.h
exec.h	Use __CONCAT and __XSTRING when concatenating or stringifying arguments to	2003-01-04 08:17:27 +00:00
extattr.h	Userspace prototypes for the extattr_list_*() system calls.	2003-06-04 04:04:24 +00:00
fbio.h	Add FBTYPEs used by the sbus bus support in XFree86. This uses some of	2003-06-18 17:49:52 +00:00
fcntl.h	Move FMARK and FDEFER til sys/file.h where they belong.	2003-06-20 07:59:59 +00:00
fdcio.h
file.h	Add a f_vnode field to struct file.	2003-06-22 08:41:43 +00:00
filedesc.h	Add tracking of process leaders sharing a file descriptor table and	2003-06-02 16:05:32 +00:00
filio.h
fnv_hash.h
gmon.h
gpt.h	o Include <sys/uuid.h>. This avoids that applications such as	2002-11-10 20:13:58 +00:00
iconv.h	Convert GNU variadic macros to the ISO 9X variety.	2002-07-15 13:34:50 +00:00
imgact_aout.h	Forward declare struct vnode so that <sys/vnode.h> or some other header	2002-09-05 07:54:03 +00:00
imgact_elf.h	- Provide backwards compatibility for kern.fallback_elf_brand.	2003-01-05 03:48:14 +00:00
imgact.h	Bring in two sets of changes:	2002-11-05 17:51:56 +00:00
inflate.h
interrupt.h	Introduce a new taskqueue that runs completely free of Giant, and in	2003-02-26 03:15:42 +00:00
ioccom.h	I've fixed the X11 port, so I can remove the (ioctl) hack.	2002-04-10 04:53:37 +00:00
ioctl_bt848.h
ioctl_compat.h
ioctl_meteor.h
ioctl.h
ipc.h	It is possible for an active aio to prevent shared memory from being	2003-01-13 23:04:32 +00:00
jail.h	o In struct prison, add an allprison linked list of prisons (protected	2003-04-09 02:55:18 +00:00
joystick.h	Fix typo in the BSD copyright: s/withough/without/	2002-06-02 20:05:59 +00:00
jumbo.h	Fix 2 vm_offset_t -> vm_paddr_t missed in previous commit.	2003-03-25 01:47:29 +00:00
kbio.h
kenv.h	Rework the kernel environment subsystem. We now convert the static	2002-04-17 13:06:36 +00:00
kernel.h	Remove SI_SUB_VINUM. SI_SUB_RAID makes more sense.	2003-06-03 08:41:04 +00:00
kerneldump.h	Add kernel dump support, based on the ia64 version (which was committed	2002-10-20 17:03:15 +00:00
kobj.h	Convert hit and miss counters to unsigned values. Surely negative values	2002-06-10 22:40:26 +00:00
kse.h	Don't use fuword() and suword() on struct members of type int. This	2003-06-28 19:45:15 +00:00
kthread.h	Some kernel threads try to do significant work, and the default KSTACK_PAGES	2002-10-02 07:44:29 +00:00
ktr.h	Retire the KTR_LOCKMGR bit and use it to log eventhandler messages	2003-03-11 20:07:22 +00:00
ktrace.h	- Add a td_pflags field to struct thread for private flags accessed only by	2003-06-09 17:38:32 +00:00
libkern.h	Pass a malloc type into the libkern strdup() implementation explicitly,	2003-02-25 22:11:39 +00:00
limits.h	sys/sys/limits.h:	2003-05-19 20:29:07 +00:00
linedisc.h	- Add vm_paddr_t, a physical address type. This is required for systems	2003-03-25 00:07:06 +00:00
link_aout.h	Repo copy link.h to sys/link_elf.h and sys/link_aout.h since they are	2002-08-22 20:35:23 +00:00
link_elf.h	Implement dlinfo() function.	2003-02-13 17:47:44 +00:00
linker_set.h	Add a __section(x) macro as well. Use this in linker_set.h. ie:	2002-09-23 06:11:29 +00:00
linker.h	Slight reorg and added AMD64 support. A couple of the MODINFOMD_* values	2003-05-01 03:31:18 +00:00
lock.h	A small overhaul of witness:	2003-03-04 20:56:39 +00:00
lockf.h
lockmgr.h	- Add an interlock argument to BUF_LOCK and BUF_TIMELOCK.	2003-02-25 03:37:48 +00:00
mac_policy.h	Redesign the externalization APIs from the MAC Framework to	2003-06-23 01:26:34 +00:00
mac.h	Update NAI copyright to 2003, missed in earlier commits and merges.	2003-04-18 19:57:37 +00:00
malloc.h	- Add vm_paddr_t, a physical address type. This is required for systems	2003-03-25 00:07:06 +00:00
mbuf.h	Redefine M_FREELIST to be 0x8000; 0x4000 conflicted with two other	2003-05-09 02:15:52 +00:00
mchain.h	Some style fixes.	2003-02-21 16:24:49 +00:00
md4.h
md5.h	Oops, this should have been part of my previous commit.	2002-06-24 14:18:39 +00:00
mdioctl.h	Add a couple of undocumented test options to MD(4) to aid in regression	2003-04-09 11:59:29 +00:00
memrange.h	Some BIOSs are using MTRR values that are only documented under NDA	2002-09-15 15:07:55 +00:00
mman.h	Add a facility allowing processes to inform the VM subsystem they are	2003-03-31 21:09:57 +00:00
module.h
mount.h	Add a new mount flag MNT_BYFSID that can be used to unmount a file	2003-07-01 17:40:23 +00:00
mouse.h
msg.h	Add const qualifier to data argument for msgsnd.	2003-01-26 20:09:34 +00:00
msgbuf.h	Replace the code for reading and writing the kernel message buffer	2003-06-22 02:18:31 +00:00
mtio.h	Make the mtio data structures explicitly sized.	2002-05-14 07:30:13 +00:00
mutex.h	Add the MUTEX_NOINLINE option that explicitely de-inlines the mutex	2003-05-18 03:46:30 +00:00
namei.h	Remove four members of struct nameidata which have been commented	2003-01-13 08:49:36 +00:00
nlist_aout.h	Pad after "char *n_name;" in the !_AOUT_INCLUDE_ case so that struct nlist	2002-09-05 08:03:02 +00:00
param.h	Bump __FreeBSD_version to reflect the busdma API change.	2003-07-03 08:35:43 +00:00
pciio.h
pcpu.h	Unbreak the KSE code. Keep track of zobie threads using the Per-CPU storage	2002-12-10 02:33:45 +00:00
pioctl.h	Kernel modifications necessary to allow to follow fork()ed children.	2002-08-04 01:07:02 +00:00
pipe.h	Put some concrete limits on pipe memory consumption:	2003-07-08 04:02:31 +00:00
poll.h	Reconnect a comment with its code.	2002-07-10 04:47:25 +00:00
posix4.h	Back out M_* changes, per decision of the TRB.	2003-02-19 05:47:46 +00:00
power.h	Very minor warns fix. Add a declaration for an unused parameter.	2002-07-15 14:06:03 +00:00
priority.h
proc.h	o Change kse_thr_interrupt to allow send a signal to a specified thread,	2003-06-28 08:29:05 +00:00
procfs.h
protosw.h	Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,	2003-01-01 18:49:04 +00:00
ptio.h
ptrace.h
queue.h	Add a macro for SLIST traversal 'SLIST_FOREACH_PREVPTR',	2002-08-05 05:18:43 +00:00
random.h	add RANDOM_PURE for use by crypto drivers that harvest data from h/w RNG's	2002-10-04 20:34:08 +00:00
reboot.h	Libdisk does not need to include <sys/diskslice.h> any more.	2003-04-04 16:35:16 +00:00
regression.h
resource.h	Move cp_time[CPUSTATES] and related #defines to <sys/resource.h>	2003-02-16 13:30:29 +00:00
resourcevar.h	Use u_int for the struct uidinfo reference count rather than u_short;	2003-04-20 13:54:04 +00:00
rman.h	Implement rman_get_device	2003-02-12 07:00:59 +00:00
rtprio.h
runq.h	Make the run queue parameters machine dependent. Optimize 64 bit	2002-05-25 01:12:23 +00:00
sbuf.h	Add the new function "sbuf_done()" which returns non-zero if the sbuf is	2002-10-04 09:58:17 +00:00
sched.h	- Adjust sched hooks for fork and exec to take processes as arguments instead	2003-04-11 03:39:07 +00:00
select.h	Add complete struct timeval by including <sys/_timeval.h>.	2002-12-31 04:13:50 +00:00
selinfo.h
sem.h	s/u_short/unsigned short/ to make this compile if _POSIX_C_SOURCE=200112	2003-06-02 17:23:37 +00:00
sema.h
semaphore.h	o Adjust the SEM_VALUE_MAX macro so that <machine/limits.h> isn't	2002-10-04 21:31:33 +00:00
shm.h	Bring shm functions closer the the opengroup standards.	2003-01-25 21:33:05 +00:00
sigio.h	When compiling the kernel do not implicitly include filedesc.h from proc.h,	2003-01-01 01:56:19 +00:00
signal.h	- According to mike@FreeBSD.org SIGTHR should be hiden by	2003-03-31 23:31:50 +00:00
signalvar.h	Signals sent specifically to a particular thread must	2003-07-03 19:09:59 +00:00
smp.h	- Add structures for defining cpu topologies more complex than SMP.	2003-06-28 22:06:19 +00:00
snoop.h	Declare the snp ioctl()s to work on udev_t, since that is what they	2002-11-11 10:45:31 +00:00
socket.h	Finish driving a stake through the heart of netns and the associated	2003-03-05 19:24:24 +00:00
socketvar.h	Pass the vm_page's address to sf_buf_alloc(); map the vm_page as part	2003-03-29 06:14:14 +00:00
sockio.h
soundcard.h	My previous commit broke builds for restricted namespaces. Add	2003-05-04 05:57:50 +00:00
stat.h	Fix two misuses of __BSD_VISIBLE.	2003-05-22 17:07:57 +00:00
statvfs.h	o Merge <machine/ansi.h> and <machine/types.h> into a new header	2002-08-21 16:20:02 +00:00
stddef.h	Add the sys/stddef.h header, so that we can have ptrdiff_t	2002-11-13 15:14:57 +00:00
stdint.h	o Merge <machine/ansi.h> and <machine/types.h> into a new header	2002-08-21 16:20:02 +00:00
sun_disklabel.h	Introduce a #define for the length of the bootloader code.	2003-04-23 08:04:30 +00:00
sx.h
syscall.h	Regen from syscalls.master:1.149, addition of extended attribute	2003-06-04 03:50:20 +00:00
syscall.mk	Regen from syscalls.master:1.149, addition of extended attribute	2003-06-04 03:50:20 +00:00
syscallsubr.h	Split sendit into two parts. The first part, still called sendit, that	2003-05-05 20:33:38 +00:00
sysctl.h	Add KERN_PROC_PROC for returning only processes, not threads.	2003-06-12 16:34:19 +00:00
sysent.h	SCARGS removal take II.	2002-12-14 01:56:26 +00:00
syslimits.h	Add the POSIX sanctioned "LOGIN_NAME_MAX" -- Maximum length of a login name.	2003-01-06 04:33:47 +00:00
syslog.h	o Merge <machine/ansi.h> and <machine/types.h> into a new header	2002-08-21 16:20:02 +00:00
sysproto.h	o Change kse_thr_interrupt to allow send a signal to a specified thread,	2003-06-28 08:29:05 +00:00
systm.h	Define ovbcopy() as a macro which expands to the equivalent bcopy() call,	2003-04-04 17:29:55 +00:00
taskqueue.h	Introduce a new taskqueue that runs completely free of Giant, and in	2003-02-26 03:15:42 +00:00
termios.h
thr.h	- Add two files to support the thr threading interface.	2003-04-01 00:30:30 +00:00
tiio.h	At long last, commit the zero copy sockets code.	2002-06-26 03:37:47 +00:00
time.h	Implement CLOCK_MONOTONIC.	2003-02-23 10:18:31 +00:00
timeb.h
timepps.h	Brucifixion ? Yes, out that door, row on the left, one patch each.	2002-04-30 19:48:45 +00:00
timers.h
times.h	o Merge <machine/ansi.h> and <machine/types.h> into a new header	2002-08-21 16:20:02 +00:00
timespec.h	o Merge <machine/ansi.h> and <machine/types.h> into a new header	2002-08-21 16:20:02 +00:00
timetc.h	Convert the SMP_TSC kernel option into a loader tunable. Also enable	2003-04-10 23:07:24 +00:00
timex.h	Removed unused forward struct declaration.	2002-04-28 09:51:45 +00:00
tree.h	Import OpenBSD's <sys/tree.h>, needed by OpenSSH.	2002-06-23 14:38:51 +00:00
tty.h	Use a new message buffer `consmsgbuf' to forward messages to a	2003-06-22 02:54:33 +00:00
ttychars.h
ttycom.h
ttydefaults.h
ttydev.h
types.h	Move details of dev_t (and udev_t) to <sys/_types.h>.	2003-03-28 15:27:30 +00:00
ucontext.h	Add an argument to get_mcontext() which specified whether the	2003-04-25 01:50:30 +00:00
ucred.h	o Fix a comment.	2003-03-27 11:35:45 +00:00
uio.h	Remove ENABLE_VFS_IOOPT. It is a long unfinished work-in-progress.	2003-03-06 03:41:02 +00:00
umtx.h	- Remove the blocked pointer from the umtx structure.	2003-06-03 05:24:46 +00:00
un.h	o Merge <machine/ansi.h> and <machine/types.h> into a new header	2002-08-21 16:20:02 +00:00
unistd.h	Update limits and configuration parameters for 1003.1/TC1/D6.	2002-10-27 18:03:02 +00:00
unpcb.h	Remove vestiges of no longer needed unp_rvnode field.	2003-02-06 01:34:43 +00:00
user.h	- Merge struct procsig with struct sigacts.	2003-05-13 20:36:02 +00:00
utsname.h
uuid.h	Introduce {be,le}_uuid_{enc,dec}() functions for explicitly encoding	2003-05-31 16:47:07 +00:00
vmmeter.h	- It's more accurate to say that vm_paging_needed() returns TRUE	2003-02-02 07:16:40 +00:00
vnode.h	The IO_NOWDRAIN and B_NOWDRAIN hacks are no longer needed to prevent	2003-05-31 16:42:45 +00:00
wait.h	Remove the deprecated 4.2/4.3BSD wait union.	2002-06-05 02:21:01 +00:00
watchdog.h	Remove an '_' which was surplus to requirements.	2003-06-25 08:30:45 +00:00
xrpuio.h