usage as of SPC2r20. Specifically, handle the BQueue
flag which will indicate that a device supports the
Basic Queueing model (no Head of Queue or Ordered tags).
When this flag is set, SID_CmdQueue is clear. This has
causes FreeBSD to assume that the device did not support
tagged operations.
MFC after: 1 month
for IOCTLs where casting data to intptr_t * isn't the right thing to do
as _IO() isn't used for them but _IOR(..., int)/_IOW(..., int) are (i.e.
for all IOCTLs except VMIO_SIOCSIFFLAGS), fixing tap(4) on big-endian
LP64 machines.
PR: sparc64/98084
OK'ed by: emax
MFC after: 1 week
`-Wundef'
Warn whenever an identifier which is not a macro is encountered in
an `#if' directive, outside of `defined'. Such identifiers are
replaced with zero.
1,2 and so on.
It specifies the command to be run as Nth after jail startup.
sh(1)-fu by: Dario Freni
PR: conf/97697
MFC after: 2 weeks
Reviewed by: ru@ (man page)
enabled. It has been commented out for a reason I forgot but I suspect
does not apply anymore.
Technically speaking it's not required to do it, has the data and the
instruction cache have been disabled in _start(). However, it may change
in the future, so I don't want to rely on this behavior.
Submitted by: kevlo
use a different mechanism for setting warning flags, and using
WARNS here only has null or negative effects.
Submitted by: bde (I think it means "submitted")
can read two variables at once; and suffix pattern deletion) to make the
extract command fork fewer processes.
With the portsnap snapshot and the ports tree in swap-backed memory
disks on my 1.4GHz laptop, this reduces 178800 processes and 195/56/126
seconds of real/user/sys time to 44600 processes and 103/34/60 seconds.
style "every Monday":
mon * Do Foo.
Previously, at the end of the month, this could cause a printout of
the following nature when invoked with -A 7:
36 May* Do Foo
MFC after: 2 weeks
vmspace_exitfree() and vmspace_free() which could result in the same
vmspace being freed twice.
Factor out part of exit1() into new function vmspace_exit(). Attach
to vmspace0 to allow old vmspace to be freed earlier.
Add new function, vmspace_acquire_ref(), for obtaining a vmspace
reference for a vmspace belonging to another process. Avoid changing
vmspace refcount from 0 to 1 since that could also lead to the same
vmspace being freed twice.
Change vmtotal() and swapout_procs() to use vmspace_acquire_ref().
Reviewed by: alc
can see the results of SPI negotiation w/o being overwhelmed
with other crap).
+ For U320 devices, check against both Settings *and* DV flags before
deciding whether we need to skip actual SPI settings for a device.
+ Go back to creating a 'physical disk' side of a raid/passthru bus that
is limited to the number of maximum physical disks. Actually, this isn't
probably *quite* right yet for one RAID volume, and if we ever end up
with finding a device that supports more than one RAID volume (not likely),
it probably won't quite be right either.
The problem here is that the creating of this 'physical' passthru sim is
just a cheap way to leverage off the CAM midlayer to do our negotiation
for us on the subentities that make up a RAID volume. It almost causes
more trouble than it is worth because we have to remember which side
we're talking to in terms of forming commands and which target ids are
real and so on. Bleah.
+ Skip trying to actually do SPI settings for the RAID volumes on the
real side of the raid/passthru bus pair- this just confuses the issue.
The underlying real physical devices will have the negotiation performed
and the Raid volume will inherit the resultant settings. At the sime time,
non-RAID devices can be on the same real bus, so *do* perform negotiations
with them.
+ At the end of doing all of the settings twiddling, *ahem*, remember to
go update the settings on the card itself (dunno how this got nuked).
At this point, negotiations *seem* to be being done (again) correctly for
both RAID volumes and their subentities. And they seem to be *mostly*
now right for other non-RAID entities on the same bus (I ended up with
3 out of 8 other disks still at narror/async- haven't the slightest
idea why yes).
Finally, negotiations on a normal bus seem to work (again).
There's still more work coming into this area, but we're in the
final stretch.
the passed target id is one of the RAID VolumeID. This result
is used to decide whether to try and do actual SPI negotiations
on the real side of the raid/passthru bus pair. The reason we
check this is that we can have both RAID volumes and real devices
on the same bus.
Retire pmap_track_modified(). We no longer need it because we do not
create managed mappings within the clean submap. To prevent regressions,
add assertions blocking the creation of managed mappings within the clean
submap.
POSIX (susv3) requires this, but it is unclear what should be inherited,
duplicating whole 387 stack for new thread seems to be unnecessary and
dangerous. Revert to previous code, force a new thread to be started with
clean FP state.
USBD_FORCE_SHORT_XFER to ensure that we actually build and execute
a transfer. This means that the various alloc_sqtd_chain functions
will always construct a transfer, so it is safe to modify the
allocated descriptors on return. Previously there were cases where
a zero length transfer would cause a NULL dereference.
Reported by: bp
will allow the NFS server to call vfs_stdcheckexp() on the exported nullfs
filesystem, not the underlying filesystem being nullfs mounted.
If the lower filesystem was not NFS exported, then the NFS exported
null filesystem would not work.
Pointed out by: scottl
PR: kern/87906
MFC after: 1 week
