directory vnodes use to refer to their constituent vnodes, into
union_dircache_free(). Also s/union_dircache/union_dircache_get/ and
tweak the structure of union_dircache_r().
MFC after: 3 days
to the machine-independent parts of the VM. At the same time, this
introduces vm object locking for the non-i386 platforms.
Two details:
1. KSTACK_GUARD has been removed in favor of KSTACK_GUARD_PAGES. The
different machine-dependent implementations used various combinations
of KSTACK_GUARD and KSTACK_GUARD_PAGES. To disable guard page, set
KSTACK_GUARD_PAGES to 0.
2. Remove the (unnecessary) clearing of PG_ZERO in vm_thread_new. In
5.x, (but not 4.x,) PG_ZERO can only be set if VM_ALLOC_ZERO is passed
to vm_page_alloc() or vm_page_grab().
Devices below may experience a change in geometry.
* Due to a bug, aic(4) never used extended geometry. Changes all drives
>1G to now use extended translation.
* sbp(4) drives exactly 1 GB in size now no longer use extended geometry.
* umass(4) drives exactly 1 GB in size now no longer use extended geometry.
For all other controllers in this commit, this should be a no-op.
Looked over by: scottl
Devices below may experience a change in geometry.
* Due to a bug, aic(4) never used extended geometry. Changes all drives
>1G to now use extended translation.
* sbp(4) drives exactly 1 GB in size now no longer use extended geometry.
* umass(4) drives exactly 1 GB in size now no longer use extended geometry.
For all other controllers in this commit, this should be a no-op.
PR:
Submitted by:
Looked over by: scottl
Approved by:
Obtained from:
MFC after:
in smb_fphelp(): the parent vnode may have already been recycled
since we don't hold a reference to it. Fixes a panic when rebooting
with mdconfig -t vnode devices referring to vnodes on a smbfs mount.
how we registered pccard_intr, it is MPSAFE. However, since we
register the pccard_intr handler with the flags of the ISR we call,
that is the gating factor. We need do nothing specific here.
Prompted by: seeing pccard_intr in a panic.
are the same that those of the kernel in the KLD_MODULE case. If
we ever want to detect that kind of problems, this is not the right
place to do this since every network driver would be affected by
such desynchronisation.
toggle several media options (sonet/sdh, for example) with ifconfig and
to see the carrier state in ifconfig's output. It gives also read/write
access (given the right privilegs) to the S/Uni registers to user space
programs.
been tested extensively, but -CURRENT testing has been hampered by a
number of panics that also occur without the patch. Since the
destabilizing changes between 4.X and 5.X are external to unionfs,
I believe this patch applies equally well to both.
Thanks to scrappy for assistance testing these and other changes.
MFC after: 4 days
small but noticeable increase in performance for name lookup operations.
The code uses two zones, one for short names (less than 32 characters)
and one for long names (up to NAME_MAX). Since most file names are
fairly short, this saves a considerable amount of space that would
otherwise be wasted if we always allocated NAME_MAX bytes. The cutoff
value of 32 characters was picked arbitrarily and may benefit from some
tweaking; it could also be made into a tunable.
Submitted by: hmp
Restructure the error handling portion of the resource allocation
code to eliminate duplicated code.
Test for the O_NONBLOCK && fi_readers == 0 case before incrementing
fi_writers and modifying the the socket flag to avoid having to
undo these operations in this error case.
Restructure and simplify the code that handles blocking opens.
There should be no change to functionality.
than once. This appears to work around the hanging issues, at the
expense of warnings about bad RID allocations. I'm not sure this is a
permanant workaround, but does appear to help in the tests that I've
done here.
has not been cleaned in the meantime, since this can happen during
a forced unmount. Also add a comment that nfs_removeit() should
really be locking the directory vnode before calling nfs_removerpc().
Reported by: mbr
Tested by: mbr
MFC after: 1 week
It currently supports the PMC Sierra Lite, Ultra and 622 chips and
the IDT 77105. The driver handles media options and state in a consistent
manner for ATM drivers. The next commit to the midway driver will make
it use utopia.
doesn't have one. The test was bogus on these architectures, but
recent changes broke it altogether.
Prompted by: phk
This should fix the recent SPARC 64 build problems.
defined, then #error out. This is protected inside of #ifdef _KERNEL.
This allows one to tag code in the tree that will be deleted in 6.x
with the 'OBSOLETE_IN_6 #define at the top of the file. This makes
for easy grepping, plus a mechanism that automatically fails the
compilation of those files that are so tagged after we do the cutover.
However, GENERIC has wdc commented out, and COMPAT_OLDISA is required
for that. Comment out COMPAT_OLDISA and sdd a comment to this effect
near wdc.
Reviewed by: nyan@
o Register ISR INTR_MPSAFE.
o Loop on KTHREAD_DONE == 0 in the thread.
o Safe the INTR_MPSAFE flag for client drivers (don't know if there are any
CardBus/PCI drivers that are INTR_MPSAFE)
o Read status after acquiring mtx_lock(Giant) rather than before so that we
catch state changes that happen while Giant is being acquired.
o Turn off the CD bit when we see a CD interrupt, and turn it back on after
we've attached/detached the card.
o On suspend, actually set the CBB_SOCKET_MASK to zero rather than oring
in '0' to turn it off on suspend.
o If the ISR that's registerd is MPSAFE, don't acquire Giant around call to
client ISR.
o Fix comments to reflect these changes.
PCB contains FP registers, whose alignment must be 16 bytes at least.
Since the PCB pointed to by pc_pcb is immediately after the PCPU
itself, round-up the size of thge PCPU to a multiple of 16 bytes. The
PCPU is page aligned.
This fixes a misalignment trap caused by stopping a CPU in a SMP
kernel, such as been done when entering the debugger.
Reported by: Alan Robinson <alan.robinson@fujitsu-siemens.com>
too small panics on PAE machines which have odd > 4GB sizes (4.5 gig
would render a 20MB of KVA for kmem_map instead of 200MB).
Submitted by: John Cagle <john.cagle@hp.com>, jeff
Reviewed by: jeff, peter, scottl, lots of USENIX folks
about the driver version in case of an error report. It conflicts with
some other variable of the same name that has been added to the kernel
just recently and there haven't been any bug reports for quite some
time now, anyway ...
is currently executing when we try to remove it in exit1(). Without this,
it was possible for the callout to bogusly rearm itself and eventually
refire after the process had been free'd resulting in a panic.
PR: kern/51964
Reported by: Jilles Tjoelker <jilles@stack.nl>
Reviewed by: tegge, bde
curthread. Unlike td_flags, this field does not need any locking.
- Replace the td_inktr and td_inktrace variables with equivalent private
thread flags.
- Move TDF_OLDMASK over to the private flags field so it no longer requires
sched_lock.
userland, and the kernel. In the kernel by way of the 'ident[]' variable
akin to all the other stuff generated by newvers.sh. In userland it is
available to sysctl consumers via KERN_IDENT or 'kern.ident'. It is exported
by uname(1) by the -i flag.
Reviewed by: hackers@
second and equalizing the load between the two most imbalanced CPU. This
is intended to clear up long term load imbalances that would not be handled
by the 'pull' method in sched_choose().
- Pull out some bits of sched_choose() into a kseq_move() function that moves
an arbitrary thread from one kseq to another.
adding it to the nice tables. Therefore, in kseq_add_nice, we should
keep in mind that the load will be 1 if we are the only thread, and not
0.
- Assert that the sched lock is held in all the appropriate places.
- Increase the scope of the sched lock in sched_pctcpu_update().
- Hold the sched lock in sched_runnable(). It is not held by the caller.
ia64-specific.
- When trying to re-route interrupts, don't change cfg->intline if the
re-route fails by returning an invalid vector. This fixes machines
without any way of routing interrupts such as older PC's without a
$PIR table.
We do not currently write the new intline value back to the hardware, but
we should. That will likely be added in a later commit.
the caller assumes this to not happen by means of performing an
indirection without checking the return value. Add KASSERTs to
force a kernel with INVARIANTS to panic. This is a short-term
measure. The pmap code is scheduled to be overhauled.
to deliver a signal and the RSE backing store has been exhausted or
the backing store pointer has been clobbered, we need to make sure
we call userret() and do_ast() when we exit from trap(). Not adjusting
the local variable 'user' in this case will prevent the faulty process
from being terminated and we end up in an infinite fault repetition.
Faulty process provided by: bento
if it was already enabled. We don't want to set it
when it shouldn't be set, we just don't want to
inadvertantly turn it off. This should fix a recent
report of the aic7xxx driver repeatedly complaining of
"unexpected busfree while idle" in one configuration.
successfully mapping our registers. This
avoids the disabling of memory mapped I/O
just because some other driver probe happened
to touch our registers.
This drive delays going async after receiving a WDTR
message. We now send an SDTR message after a WDTR even
if our goal is to go async. This should work even for
confused devices.
If we get an unexpected busfree when attempting a WDTR
or SDTR, only set the goal negotiation parameters we were
trying to negotiate to off. This means that should a WDTR
message fail, we will still try an SDTR if our goal is
non-async.
Fix a few more places where we were looking at goal.period
instead of goal.offset for determining if we should be
negotiating sync. This should not have any impact on
our behavior, but the offset is more definitive and should
be used.
aic79xx.c:
aic79xx.h:
aic79xx_pci.c:
aic7xxx.c:
aic7xxx.h:
aic7xxx_pci.c:
Switch ah?_reset() to take an additional "reinit" argument.
Use this instead of init_level to determin if the chip
should be fully reinitialized after a chip reset. This
is required so that ah?_shutdown() can reset the chip
without side-effects.
aic79xx.c:
Implement ahd_suspend() and ahd_resume().
aic7xxx.c:
Change ahc_loadseq() to *not* restart the sequencer.
This brings the loadseq behavior in line with that
of the 7902 driver and also simplifies the init routine.
Correct the resume routine to enable interrupts and
restart the sequencer.
always kernel space. It should be treated as user space when run with
user privileges (which is the case for the signal trampolines). This
fixes its only use in a KASSERT in subr_trap.c.
