a page boundary, since we've already allocated all our contiguous kva
space up front. This eliminates some memory wastage, and allows us to
actually reach the # of objects were specified in the zinit() call.
Reviewed by: peter, dillon
Protect against an infinite loop when prefaulting pages. This can
happen when the vm system maps past the end of an object or tries
to map a zero length object, the pmap layer misses the fact that
offsets wrap into negative numbers and we get stuck.
Make flushing dirty pages work correctly on filesystems that
unexpectedly do not complete writes even with sync I/O requests.
This should help the behavior of mmaped files when using
softupdates (and perhaps in other circumstances also.)
- use NPTEPG/NPDEPG instead of magic 1024 (important for PAE)
- use pt_entry_t instead of unsigned (important for PAE)
- use vm_offset_t instead of unsigned for va's (important for x86-64)
ill effects. This should fix problems threaded programs are having with
auto-detecting CPU type.
Reported by: Joe Clarke <marcus@marcuscom.com>
Tested by: Joe Clarke <marcus@marcuscom.com>
Reviewed by: jhb
MFC after: 1 week
src/sys/dev/an/if_an_pccard.c rev 1.10 change requires to include
"card_if.h" but Makefile doesn't know about this file. Without this,
kernel build will fail at this driver.
lock as this usually makes the problem worse.
- If we get a page fault while holding a spin lock, treat it as a fatal
trap and don't even bother calling into the VM since calling into the
VM will panic when trying to lock Giant before we can get a useful
message anyways.
Now you can say;
# sysctl hw.acpi.lid_switch_state=NONE
instead of specifying unsupported _Sx object in the system.
Actually, S4B is going to disappear in ACPICA and we already have
hw.acpi.s4bios to distinguish BIOS hibernation or OS hibernation.
pccard layer and rename them PCMCIA_CARD and PCMCIA_CARD2 respectively
(note, this is being done with an eye towards NetBSD integreation so
it is easier to keep lists of cards between us and them in sync).
Use this in the an and wi drivers.
reference: with td->td_ucred, it will be desirable to authorize
based on td->td_ucred, rather than p->p_ucred.
o Since the same variable 'p' was later used with pfind() on the target
process for the wakeup, introduce a new local variable 'targetp'
to use instead.
Obtained from: TrustedBSD Project
Sponsored by: DARPA, NAI Labs
compare the slot offset against the predicted offset, not a boolean
flag. This typo effectively disabled the sequential optimisation,
but was otherwise harmless.
Not surprisingly, fixing this improves performance in the sequential
access case. I am seeing a 7% speedup on one machine here; using
dirhash when sequentially looking up directory entries is now about
5% faster instead of 2% slower than the non-dirhash case.
Submitted by: KOIE Hidetaka <koie@suri.co.jp>
MFC after: 1 week
Replace uses of holdfp() with fget*() or fgetvp*() calls as appropriate
introduce fget(), fget_read(), fget_write() - these functions will take
a thread and file descriptor and return a file pointer with its ref
count bumped.
introduce fgetvp(), fgetvp_read(), fgetvp_write() - these functions will
take a thread and file descriptor and return a vref()'d vnode.
*_read() requires that the file pointer be FREAD, *_write that it be
FWRITE.
This continues the cleanup of struct filedesc and struct file access
routines which, when are all through with it, will allow us to then
make the API calls MP safe and be able to move Giant down into the fo_*
functions.
- Restore inferior() to being iterative rather than recursive.
- Assert that the proctree_lock is held in inferior() and change the one
caller to get a shared lock of it. This also ensures that we hold the
lock after performing the check so the check can't be made invalid out
from under us after the check but before we act on it.
Requested by: bde
reading cr.ivr, as well as writing to cr.eoi.
o use global variables to pass information to os_boot_rendez
so that it doesn't have to jump through hoops to find it
out. This avoids traps on the AP without it even being
initialized. This fixes SMP configurations.
o Move the probing of the MADT to the end of cpu_startup,
instead of at the start of cpu_mp_probe. We need to probe
the MADT for non-SMP configurations as well. This fixes
uniprocessor configurations.
o Serialize AP wake-up by waiting for the AP. We need to do
this since we use global variables to for the AP to use.
As a side-effect, we can use printf() more easily to see
what's going on.
to avoid the need for rpc.lockd to perform client locks. Using
this option a user can revert back to using local locks for NFS mounts
like we did before we had rpc.lockd.
one to perform a vn_open using temporary/other/fake credentials.
Modify the nfs client side locking code to use vn_open_cred() passing
proc0's ucred instead of the old way which was to temporary raise
privs while running vn_open(). This should close the race hopefully.
trying something new with the macros here and will likely try to get
them adopted by NetBSD as well as moving them to other drivers. They
make the list more compact and easier to read, the price of rigid to a
schema for generating them (of course there are those that would argue
this isn't bad).
Obtained from: NetBSD's if_wi_pcmcia.c 1.9
off chip that was on one prototype board. However, this appears to be
a design that many chipsets are compatible with its PPEC register set
(eg the Omega 82c094). Through the kindness of the Red Hat developer
David Woodhouse, I now have this datasheet.
I may take the advise of one of the bsd-nomads (whose name
unfortunately escapes me at the moment) and split out all these 16-bit
I/O mapped PCI devices into a separate driver...
that it has one BAR that's mapped to 0x3e0 and is I/O only. It does
not conform to the Yenta spec, like other PCI PCMICA bridges do (eg
the TI 1031, which is mostly a 1131 w/o 32bit card support). It
appears that this chip may also need to not route PCI interrupts
as well.
This chip is used in the NEC Versa 2430CD (and it appears that
sometimes it works, while other times it doesn't) and others in the
2400 series. While the NEC website claims Cardbus support, I can't figure
out how that is possible.
Submitted by: Ben Timby <ben@webexc.com>
- clean up wakeup routing fixup code by using macros.
- allocate pte object temporary for kernel thread to avoid kernel
panic by events from sleep button or lid switch.
value (-1) in lue of 50 (which assumes a 5.0V card). The rest of the
pccard system doesn't detect the proper voltage for the card, so we have
to do it on powerup. Many (all?) 3.3V cards can tolerate 5.0V for reading
the CIS, but may fail to operate properly when so powered.
Idea from: Chiharu Shibata-san <chi@bd.mbn.or.jp> in bsd-nomads:15867
kern.post.mk.
# this should allow us to move kern.post.mk to the last line of the makefiles,
# but I'll do that slowly as I verify that one can do that w/o breaking things.
Submitted by: naddy
Any modifications to SYSTEM_OBJS after including kern.post.mk
will not make it to SYSTEM_DEP and consequently any dependency
rules. This caused __{div|rem}* to not be built...
It doesn't help us catch overflowing vector entries at compile time.
Instead use the .org directive. The last entry in the IVT doesn't
strictly need to be limited to 256 bytes, but doing so allows the
the VHPT to be placed immediately following the IVT without wasting
any space due to alignment.
as being valid. Previously only the magic number and the virtual
address were checked, but it makes little sense to require that
the virtual address is the same (the message buffer is located at
the end of physical memory), and checks on the msg_bufx and msg_bufr
indices were missing.
Submitted by: Bodo Rueskamp <br@clabsms.de>
Tripped over during a kernel debugging tutorial given by: grog
Reviewed by: grog, dwmalone
MFC after: 1 week
on a vnode-backed object must be incremented *after* obtaining the vnode
lock. If it is bumped before obtaining the vnode lock we can deadlock
against vtruncbuf().
Submitted by: peter, ps
MFC after: 3 days
* Re-organise RID allocation so that we don't accidentally give a RID
to two different processes. Also randomise the order to try to reduce
collisions in VHPT and TLB. Don't allocate RIDs for regions which are
unused.
* Allocate space for VHPT based on the size of physical memory. More
tuning is needed here.
* Add sysctl instrumentation for VHPT - see sysctl vm.stats.vhpt
* Fix a bug in pmap_prefault() which prevented it from actually adding
pages to the pmap.
* Remove ancient dead debugging code.
* Add DDB commands for examining translation registers and region
registers.
The first change fixes the 'free/cache page %p was dirty' panic which I
have been seeing when the system is put under moderate load. It also
fixes the negative RSS values in ps which have been confusing me for a
while.
With this set of changes the ia64 port is reliable enough to build its
own kernels, even with a 20-way parallel build. Next stop buildworld.
o Bite the bullet and create controller types for the 6729 and also for
the 673x. Rename the 672x to 6722.
o Define minimal extended register info (just register 0xa for reading VS[12]).
# I think the last version may have broken 673x controllers, but this should
# fix them.
Tested on the 6722, but not the 6729.
Ideas from: Chiharu Shibata-san's article in bsd-nomads:15866
on my CL-PD6722, but won't work on the CL-PD6729. The latter two need
more sophisticated detection of 3.3V cards than I'm up to at the
moment. Also, only a few of the ISA chipsets that support 3.3V will
likely work at the moment.
It appears that for 3.3V cards we must detect them and adjust the
pwr.vcc value from 50 to 33. Give a strong hint to automatically
power up the card for PD_POWER cards.
This makes my SMC 2602W (the 3.3V version of the 2632W) work on my
Fujitsu Stylistic 500.
SMC 3.3V card donated by: Ryan Losh
Thanks to: bsd-nomads for reviews of past 3.3V code
Basically FIFOs become a real pain to abuse as a rendevous point without
this change because you can't really select(2) on them because they always
return ready even though there is no writer (to signal EOF).
Obtained from: BSD/os
sysctl_req', which describes in-progress sysctl requests. This permits
sysctl handlers to have access to the current thread, permitting work
on implementing td->td_ucred, migration of suser() to using struct
thread to derive the appropriate ucred, and allowing struct thread to be
passed down to other code, such as network code where td is not currently
available (and curproc is used).
o Note: netncp and netsmb are not updated to reflect this change, as they
are not currently KSE-adapted.
Reviewed by: julian
Obtained from: TrustedBSD Project
instead of looping until the disk is full. This kind of failure can
especially happen when a version of awk that doesn't support POSIX
character classes is used.
Submitted by: David Wolfskill <david@catwhisker.org>
quad_t cannot be printed with %lld on 64 bit systems.
Dont waste cpu to round user and system times up to long long, it is
highly improbable that a process will have accumulated 68 years of
user or system cpu time (not wall clock time) before a reboot or
process restart.
tunneled packet.
When there is no suitable inbound policy for the packet of the ipsec
tunnel mode, the kernel never decapsulate the tunneled packet
as the ipsec tunnel mode even when the system wide policy is "none".
Then the kernel leaves the generic tunnel module to process this
packet. If there is no rule of the generic tunnel, the packet
is rejected and the statistics will be counted up.
Obtained from: KAME
MFC after: 1 week
this case, the firmware trap table needs to be restored). Make use of
it in cpu_halt() and cpu_reset(), and make cpu_reset() reboot the kernel
that was used previously insead of behaving like cpu_halt().
Add a shutdown_final event handler that turns the power off if requested.
unaligned accesses, and instr.h, which contrains definitions for the
sparc64 instruction set (partly from NetBSD).
Make use of some definitions from instr.h in db_disasm.c.
consistent with the one other function in the file, and prevents long
lines in up-coming changes. This nominally pulls kern_mib.c a little
further down the long path to style(9) compliance.
