in OpenBSD by Niels Provos. The patch introduces a bitmap of allocated
file descriptors which is used to locate available descriptors when a new
one is needed. It also moves the task of growing the file descriptor table
out of fdalloc(), reducing complexity in both fdalloc() and do_dup().
Debts of gratitude are owed to tjr@ (who provided the original patch on
which this work is based), grog@ (for the gdb(4) man page) and rwatson@
(for assistance with pxeboot(8)).
of adding the code to lock and unlock the vnodes and taking care
to avoid deadlock, simplify linux_emul_convpath() by comparing the
vnode pointers directly instead of comparing their va_fsid and
va_fileid attributes. This allows the removal of the calls to
VOP_GETATTR().
This gives +10% performance on simple tests, so definitly worth it.
A few percent more could be had by not using M_ZERO'd alloc's, but
we then need to clear fields all over the place to be safe, and
that was deemed not worth the trouble (and it makes life dangerous).
be sure to increment the refcount of the argument so it is not
prematurely deleted. This is a workaround and may appear in a different
form in ACPI-CA. This fixes battery evaluation on Thinkpads that was
broken by fixing the Dell battery state.
Submitted by: Luming Yu <luming.yu@intel.com>
of the functions in libkern. Without this, parts of the kernel would
reference a non-existent (undeclared and undefined) ffs() function; the
only reason this didn't break the kernel build is that gcc happens to
have a built-in ffs() and incorrectly fails to warn about the lack of
prototypes for built-in functions.
ithread_remove_handler() may fail to remove the interrupt handler if
it decides to let the ithread do the removal. The problem is that during
boot "cold" is set, which causes msleep() to return immediately. This
will cause ithread_remove_handler() to fail to wait for the ithread
to do the removal from the handler TAILQ before freeing the handler
back to the heap. Bad things will happen when some other user of the
TAILQ, such as ithread_add_handler() or the actual ithread attempts to use
the freed handler. Fix the problem by forcing ithread_remove_handler()
to do the actual removal itself if the "cold" flag is set.
Reviewed by: jhb
kmem_free(). Note: The FreeBSD-specific code in this file has been
subsumed by the FreeBSD-specific header file, pdq_freebsd.h. That header
file already specifies the use of contigmalloc() and contigfree(). Thus,
the purpose of this change is to avoid having nonsensical examples of
FreeBSD-specific memory allocation in our source tree.
the MacIO chip and PSIM's IOBus. Bus-specific drivers should
use the identify method to attach themselves to nexus so
interrupt can be allocated before the h/w is probed. The
'early attach' routine in openpic is used for this stage
of boot. When h/w is probed, the openpic can be attached
properly. It will enable interrupts allocated prior to
this.
and add_child entry point to allow devices to use the identify
method to add themselves if need be (e.g. openpic, syscons).
Export interrupt-controller-add routine for extern int cntlr drivers.
Eliminate recursive OFW device-tree walk and only iterate the
top-level ala sparc64. Allow child devices to set the device
type with write_ivars.
Step 1 of many in removing the hard-dependency on OpenFirmware.
map ranges that are smaller than what our resource manager code knows
is available, rather than requiring that they match exactly. This
fixes a problem with the Intel PRO/1000 gigE driver: it wants to map
a range of 32 I/O ports, even though some chips appear set up to
decode a range of 64. With this fix, it loads and runs correctly.
unexpected interrupts. If an interrupt is triggered and we're not
finished initializing yet, bail. If we have finished initializing,
but IFF_UP isn't set yet, drain the interrupt with ndis_intr() or
ndis_disable_intr() as appropriate, then return _without_ scheduling
ndis_intrtask().
In kern_ndis.c:ndis_load_driver() only relocate/dynalink a given driver
image once. Trying to relocate an image that's already been relocated
will trash the image. We poison a part of the image header that we
don't otherwise need with a magic value to indicate it's already been
fixed up. This fixes the case where there are multiple units of the
same kind of device.
count.
- Fix the twiddle output so that it actually spins.
- Save %cx around BIOS calls to read in sectors from the disc as at least
one BIOS trashes %cx when called to read off of a USB CD-ROM drive.
Submitted by: Martin Nilsson <martin@gneto.com>
MFC after: 1 week
these add support for listing BSSIDs via wicontrol -l. I added code
to call OID_802_11_BSSID_LIST_SCAN to allow scanning for any nearby
wirelsss nets.
Convert from using individual mutexes to a mutex pool, created in
subr_ndis.c. This deals with the problem of drivers creating locks
in their DriverEntry() routines which might get trashed later.
Put some messages under IFF_DEBUG.
of the leftovers from the old version that really doesn't work anymore.
Add a reset function for host-end of the ATA channel. This is needed
for the SiI3112 in order to whack it back to reality if a device
locks up the SATA interface (thereby preventing that we can reset the
device). The result is that ATA now recovers from the timeouts that
happens with the SiI3112A and more or less all disks based on old
PATA electronics with a Marvell PATA->SATA converter. This includes
lots of the popular SATA dongles and the WDC Raptor disks..
I started with a year-old patch by Orlando Bassotto
<orlando.bassotto@ieo-research.it>, and ported it to 5.2-CURRENT along with
fixing the problems working with pre-Audigy cards.
signals to addresses to the child busses. Typically, ProgIf of 1
means a subtractive bridge. However, Intel has a whole lot of ones
with a ProgIf of 80 that are also subtractive. We cope with these
bridges too. This eliminates hw.pci.allow_unsupported_io_range
because that had almost the same effect as these patches (almost means
'buggy'). Remove the bogus checks for ISA bus locations: these cycles
aren't special and are only passed by transparent bridges.
We allow any range to succeed. If the range is a superset of the
range that's decoded, trim the resource to that range. Otherwise,
pass the range unchanged. This will change the location that PC Card
and CardBus cards are attached. This might bogusly cause some
overlapping allocation that wasn't present before, but the overlapping
fixes need to be in the pci level.
There's also a few formatting changes here.
implementation writes directly to a file, similar to the Darwin,
Solaris, and whoever else implementations, rather than buffering
through a pseudo-device.
a maximum dump size of 0, return a size-related error, rather
than returning success. Otherwise, waitpid() will incorrectly
return a status indicating that a core dump was created. Note
that the specific error doesn't actually matter, since it's lost.
MFC after: 2 weeks
PR: 60367
Submitted by: Valentin Nechayev <netch@netch.kiev.ua>
tcp6_usr_bind(), tcp_usr_connect(), and tcp6_usr_connect() before checking
to see whether the address is multicast so that the proper errno value
will be returned if sa_len is incorrect. The checks are identical to the
ones in in_pcbbind_setup(), in6_pcbbind(), and in6_pcbladdr(), which are
called after the multicast address check passes.
MFC after: 30 days
avoid relying on the minimum memory allocation size to avoid problems.
The check is somewhat redundant because the consumers of the returned
structure will check that sa_len is a protocol-specific larger size.
Submitted by: Matthew Dillon <dillon@apollo.backplane.com>
Reviewed by: nectar
MFC after: 30 days
allnodes multicast route if the routing table has not been initialized.
This avoids a panic during boot if an interface detaches before the
routing table is initialized.
Submitted by: sam
setting the new process' p_pgrp again before inserting it in the p_pglist.
Without it we can get the new process to be inserted in a different p_pglist
than the one p2->p_pgrp points to, and this is not something we want to happen.
This is not a fix, merely a bandaid, but it will work until someone finds a
better way to do it.
Discussed with: jhb (a long time ago)
at it, use the ANSI C generic pointer type for the second argument,
thus matching the documentation.
Remove the now extraneous (and now conflicting) function declarations
in various libc sources. Remove now unnecessary casts.
Reviewed by: bde
which has two important flags in it: the 'allocated by NDIS' flag
and the 'media specific info present' flag. There are two Windows macros
for getting/setting media specific info fields within the ndis_packet
structure which can behave improperly if these flags are not initialized
correctly when a packet is allocated. It seems the correct thing
to do is always set the NDIS_PACKET_ALLOCATED_BY_NDIS flag on
all newly allocated packets.
This fixes the crashes with the Intel Centrino wireless driver.
My sample card now seems to work correctly.
Also, fix a potential LOR involving ndis_txeof() in if_ndis.c.
By default, we search for files in /compat/ndis. This can be changed with
a systcl. These routines are used by some drivers which need to download
firmware or microcode into their respective devices during initialization.
Also, remove extraneous newlines from the 'built-in' sysctl/registry
variables.
in slightly less usual states:
If the thread is on a run queue, display "running" if the thread is
actually running, otherwise, "runnable".
If the thread is sleeping, and it's on a sleep queue, display the
name of the queue, otherwise "unknown" -- previously, in this situation
we would display "iowait".
If the thread is waiting on a lock, display *lockname.
If the thread is suspended, display "suspended" -- previously, in
this situation we would display "iowait".
If the thread is waiting for an interrupt, display "intrwait" --
previously, in this situation we would display "iowait".
If the thread is in a state not handled by the above, display
"unknown" -- previously, we would print "iowait".
Among other things, this avoids displaying "iowait" when the foreground
process turns out to be suspended waiting for a debugger to properly
attach.
holding the mutex. Because the sigacts pointer can't change while
the process is "live" (proc locking (x)), we know our pointer is still
valid.
In communication with: truckman
Reviewed by: jhb
free pages queue. This is presently needed by contigmalloc1().
- Move a sanity check against attempted double allocation of two pages
to the same vm object offset from vm_page_alloc() to vm_page_insert().
This provides better protection because double allocation could occur
through a direct call to vm_page_insert(), such as that by
vm_page_rename().
- Modify contigmalloc1() to hold the mutex synchronizing access to the
free pages queue while it scans vm_page_array in search of free pages.
- Correct a potential leak of pages by contigmalloc1() that I introduced
in revision 1.20: We must convert all cache queue pages to free pages
before we begin removing free pages from the free queue. Otherwise,
if we have to restart the scan because we are unable to acquire the
vm object lock that is necessary to convert a cache queue page to a
free page, we leak those free pages already removed from the free queue.
