that were copied in all of the earlier snapshots, thus its precomputed
list must be used in the copyonwrite test. Using incomplete lists may
lead to deadlock. Also do not include the blocks used for the indirect
pointers in the indirect pointers as this may lead to inconsistent
snapshots.
Sponsored by: DARPA & NAI Labs.
Approved by: re
they may be the only viable ones to flush. Thus it will now wait for
an inode lock if the other alternatives will result in rollbacks (and
immediate redirtying of the buffer). If only buffers with rollbacks
are available, one will be flushed, but then the buffer daemon will
wait briefly before proceeding. Failing to wait briefly effectively
deadlocks a uniprocessor since every other process writing to that
filesystem will wait for the buffer daemon to clean up which takes
close enough to forever to feel like a deadlock.
Reported by: Archie Cobbs <archie@dellroad.org>
Sponsored by: DARPA & NAI Labs.
Approved by: re
(a) Save control message return address only if NGM_MPPC_CONFIG_DECOMP
(b) Properly count the number of required re-key operations
when we loose synchronization and have to resync
MFC after: 3 days
busy and we are making progress towards making them not busy. This is
needed because smbfs vnodes reference their parent directory but may
appear after their parent in the mount's vnode list; one pass over the
list is not sufficient in this case.
This stops attempts to unmount idle smbfs mounts failing with EBUSY.
not to the parent's smbnode, which may be freed during the lifetime
of the child if the mount is forcibly unmounted. umount -f should now
work properly (ie. not panic) on smbfs mounts.
These call uma_large_malloc() and uma_large_free() which require Giant.
Fixes panic when descriptor table is larger than KMEM_ZMAX bytes
noticed by kkenn.
Reviewed by: jhb
module dependency system rely on linker behaviour that is machine dependent
and not part of the elf spec, and only work by accident on other platforms.
Approved by: re
kernel memory allocator, is harmless. This could be a problem for
other systems, though. I've modified Darren's patch a little.
Original patch by: Darren Schack, Isilon Systems, Inc <darrens@isilon.com>
Also analysed by: SGI, and in particular Divy Le Ray of SGI
OK'ed by: re(rwatson)
as module. This also fix's issue kern/45713.
Fix - polling was implemented incorrectly for
adapter enquiry and adapter flush.
(2) Problem: PANIC when unloading driver
as module.
Fix - device nodes are not destroyed for amr0,
and amrd* when driver is unloaded
(3) Problem: PANIC from loading driver when
3ware adapter present, error message "Warning
"amrd is usurping twed's bmaj"
Fix - put #idef freebsd version < 500000 for
bmaj -1 -> amrd_cdevsw
(4) Problem: warnings in driver when compiling
with DAMR_DEBUG param enabled in Makefile
Fix - fix the warnings so driver can compile
when -Werror is present in Makefile.
Approved by: jhb
MFC: 7 days
NULL is passed. The address of the HCDP table can be found by
iterating over the configuration tables in the EFI system table.
To avoid more duplication, a function can be called with the GUID
of interest. The function will do the scanning. Use the function
in all places where we iterate over the configuration tables in
an attempt to find a specific one.
Bump the loader version number as the result of this.
Approved by: re (blanket)
kernel, you should expect them to do something, so now they do. This
doesn't affect users who don't load or explicitly compile in the
policies.
Approved by: re (jhb)
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
accept load options (=command line options).
The call graph changes from *entry*->efi_main->efi_init, where
efi_main is the EFI equivalent of main to *entry*->efi_main->main,
where main is what you'd expect. efi_main now is what efi_init was.
The prototype of main follows that of C. The first argument is argc
and the second is argv. There is no third argument.
Allocation of heap pages is now handled by the EFI library and it
now deallocates the pages when main() returns or when exit() is
called. This allows us to safely return to the boot manager (or
EFI shell) without leaks. EFI applications are responsible to free
all memory themselves.
Handling of the load options is a bit tricky. There are either no
load options, load options in ASCII or load options in Unicode.
The EFI library will translate the ASCII options to Unicode options
as to simplify user code. Since the load options are passed as a
single string (if present) and main() accepts argc and argv, the
startup code also has to split the string into words and build the
argv vector. Here the trickiness starts. When the loader is started
from the EFI shell, argv[0] will automaticly load the program name.
In all other cases (ie through the boot manager), this is not the
case. Unfortunately, there's no trivial way to check. Hence, a
set of conditions is checked to determine if we need to fill in
argv[0] ourselves or not. This checking is not perfect. There are
known cases where it fails to do the right thing. The logic works
for most expected cases, though. This includes the case where no
options are given.
Approved by: re (blanket)
unused. Replace it with a dm_mount back-pointer to the struct mount
that the devfs_mount is associated with. Export that pointer to MAC
Framework entry points, where all current policies don't use the
pointer. This permits the SEBSD port of SELinux's FLASK/TE to compile
out-of-the-box on 5.0-CURRENT with full file system labeling support.
Approved by: re (murray)
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
The HCDP table is one (non-proprietary) way for the platform to
inform the OS about headless operation. This field would normally
hold the address as can be found by scanning the EFI system table,
which we also pass to the kernel. The apparent duplication allows
us to synthesize a HCDP table in the loader by whatever means we
can think of, including relocating the platform table into pre-
mapped address space. In short: it gives us more freedom.
Approved by: re (blanket)
of that, there's some nasty process corruption when running with
SMP.
Note that this was already in effect for the 5.0-RC1 kernels in
the form of a local patch.
Approved by: re (blanket)
a boot option. When the timer expires the machine is rebooted.
Disable the watchdog timer for 2 reasons:
o We're an interactive program. We cannot guarantee that we've
booted the kernel in the time available to us. There have been
situations where netbooting the right kernel took 2 tries and
more time than given. Not to speak of the normal behaviour to
have the loader sitting at the prompt while the user is off
doing other things (such as figuring out what to type next ;-)
o We may not boot a kernel at all. We may exit as the result of
the user typing quit (assuming it took less than 5 minutes to
type it :-). It is documented that loaders should have disabled
the watchdog timer if they return to the boot manager. Not doing
so would cause a reboot while in the boot manager. This appears
to be harmless, besides of course the actual reboot.
Approved by: re (weisse karte)
the signaled state of the apropriate event. As a side-effect of
checking the event, it's signaled state is cleared if it was set.
In efi_cons_getchar we used to wait for the apropriate event to be
signaled before reading a character. This however does not work if
we poll before reading the characteri, such as during autoboot. On
a more compliant EFI implementation this resulted in the behaviour
that hitting a key during autoboot would stop the countdown, but
would then wait for a new character to arrive instead of reading
the already pending key that stopped the countdown.
The correct behaviour for efi_cons_getchar is to try to read a key
and if none is pending, to wait for the apropriate event to signal
the arrival of a new key.
Note that with the previous behaviour, the second key would determine
how the autoboot was interrupted. This would indicate that the first
key got lost. This indicates that EFI does not necessarily maintain
a queue of pending keys. FWIW...
Approved by: re (carte blanche)
French corrected by: various people :-)
the same as fcntl() except that it supports the new 64-bit file
locking commands (LINUX_F_GETLK64 etc) that use the `flock64'
structure. We had been interpreting all flock structures passed to
fcntl64() as `struct flock64' instead of only the ones from F_*64
commands.
The glibc in linux_base-7 uses fcntl64() by default, but the bug
was often non-fatal since the misinterpretation typically only
causes junk to appear in the `l_len' field and most junk values are
accepted as valid range lengths. The result is occasional EINVAL
errors from F_SETLK and a few bytes after the supplied `struct
flock' getting clobbered during F_GETLK.
PR: kern/37656
Reviewed by: marcel
Approved by: re
MFC after: 1 week
the supported platforms. We build it into GENERIC, and it is currently
listed on the supported module list for drivers.conf on i386, which
breaks the release build. This may fix the release build for RC1 on
i386.
Conspiracy of: re
namely the ones for the timers, error handling and power management.
The registers for the timers, power management and PCI bus b errors are
reserved on Sabres (US-IIi) and can lead to false matches there.
Since all of them are never used for devices on the bus, they can be omitted
safely.
Approved by: re
GENERIC. Each device can be re-enabled at startup time by unsetting the
disabled hint in the loader.
Requested by: mdodd
Approved by: re
Prodded by: rwatson
32k read and write operations on datagram sockets when in fact we
reject requests larger than 16k. It must be the case that virtually
all clients use data sizes of 16k or less for UDP transport (FreeBSD's
client defaults to 8k and never exceeds 16k), as this bug has been
present ever since NFSv3 support was added.
Reported by: Senthil <lihtnes78@netscape.net>
Reviewed by: dillon
Approved by: re
MFC-after: 1 week
labels are acurate in relation to a fully compiled
sequencer program (all patches downloaded). Correct
a few occurances of a relative jump across a macro
that ended up jumping us into the last instruction
of the macro.
Spproved by: re (bmah)
ahd_pci.c:
Retrieve the allow_memio hint from the resource manager to
determine whether or not to try PCI MEMIO.
aic79xx_osm.h:
aic7xxx_osm.h:
Don't wrongly abuse the callout_reset() interface when trying
to abuse timeouts generated from the CAM layer. This fixes the
console freeze and lost timeout problem that many have reported,
especially on SMP systems.
aic79xx_pci.c
aic7xxx_pci.c
Rewrite the MEMIO test routine to prevent certain broken chipsets
from trying to burst multiple DWORDs to the registers. Also make
the routine better detect byte merging by the host bridge and
deal with it.
aic79xx.reg:
Correct an incorrect register definition.
Approved by: re (rwatson, jhb)
wrong, since we don't want the variable changed, but since we assign
it to variables that may also refer to other non-const strings,
warnings were generated that could break LINT.
Approved by: re
Spotted by: sam
The correct range is [1...7] with Sunday=1, but we have been writing
[0...6] with Sunday=0.
The Soekris computers flagged the zero, zapped the date, so if you
rebooted your soekris on a sunday, it would come up with a wrong
date.
Bruce has a more extensive rework of this code, but we will stick with
the minimalist fix for now.
Spotted by: Soren Kristensen <soren@soekris.com>
Thanks to: Michael Sierchio <kudzu@tenebras.com>.
Confirmed by: bde
Approved by: re
This mostly consists of functionality to serialize accesses to
the two ATA channels (which can also be used to "fix" certain
PCI based controllers).
Add support for Acard controllers.
Enable the ATA driver in PC98 GENERIC, and add device hints.
Update man page with latest support.
The PC98 core team has kindly provided me with a PC98
machine that made this all possible, thanks to all that
contributed to that effort, without that this would
probably newer have been possible..
Approved by: re@
previously allocated block as the previous use of the block may
have fallen out of the cache. Failure to reread its contents cause
zeroed results to be written instead of the proper contents.
Conversely, when the block is going to be entirely filled in, it
is not necessary reread the old contents.
Sponsored by: DARPA & NAI Labs.
Approved by: re
We allow the request to go through if it matches either a prefetchable
or a non-prefetchable part of the bridge. We do not check to make
sure it is the right kind of memory because most drivers to not yet
properly set RF_PREFETCHABLE (only cardbus seems to do so, and I'm not
entirely sure it does it right). RF_PREFETCHABLE was invented for
cardbus, so hasn't been properly documented yet.
This is still overridable by hw.pci.allow_unsupported_io_ranges, but
the need for that is greatly reduced, especially for the nvida driver.
Approved by: re
Reviewed by: jhb and many testers
Submitted by: Matt Emmerton (although this has been reworked somewhat)
could already exist, and this triggers a booby trap panic in make_dev.
remove_plex_entry: Don't remove the stripe mutex here, it gets done in
free_plex.
Approved by: re (rwatson)
to accomodate the new SSE/XMM floating point save/restore
instructions.
This commit is mostly from bde and includes some style nits.
Approved by: re (jhb)
import, as it breaks the relocation kernel modules built with the new
binutils.
Note that this, together with the binutils import, marks a kernel module
flag day on sparc64: modules built with the old binutils will not work
with new kernels and vice versa. Mismatches will result in panics.
Approved by: re
pmap_remove_pte(). Use vm_page_sleep_if_busy() in
_pmap_unwire_pte_hold() so that the page queues lock is released
when sleeping.
Approved by: re (blanket)
register to the one of the processor doing the interrupt setup. This
is required since this field is preinitialized to 0, but there exist
machines which have no processor with a MID of 0 (e.g. e450s with 1 or 2
processors).
Add some more macros for handle the interrupt mapping registers, and
rename some existing ones for consistency.
Approved by: re
are nevers used for PCI interrupts, but can cause false matches since
they are fully programmable.
2.) Skip the mapping registers for slot a2 and a3 on "psycho" bridges,
since they are not present there. Again, this could cause false matches,
which would result in the interrupt being delivered at most once.
Submitted by: jake (2)
Approved by: re
this is now done on all machines except for some known problematic ones.
Add an additional guard to make sure that the interrupt numbers are
in the correct range before swizzling. This should catch any remaining
models for which the swizzle is inappropriate.
Correct the swizzle calculation to account for the fact that the parent
interrupt numbers to be swizzled are 1-based.
Approved by: re
are the output of AES/128/CBC or ARC4RANDOM. Encrypt the random data with which
we wipe when we get a BIO_DELETE to make such an algorithm useful.
Sponsored by: DARPA & NAI Labs
Approved by: re (blanket)
the device is not actually present), clear the corresponding bit in
the ch->devices bitmap. This resolves a panic that occurred with ATAPI/CAM
after an APM suspend/resume, when the ATA hardware would erroneously
report an extra ATAPI device.
Approved by: re, sos
Reviewed by: roberto
MFC after: 7 days
version, plus add support for the new features found in the Rev B
version of the chip. The changelog is quite long and can be provided
on request. Major features include vastly improved protocol violation
handling, full support for the 7902 Rev B, better parity error
handling, and better packetized overrun handling, to name a few.
Approved by: re (blanket)
HP -> CPQ
Rearrange IDs to better match which chips they use.
Convert to uniform product description strings.
Simplify 7901A setup function.
Add the NONPACKFIFO_BUG and PACED_NEGTABLE_BUG entries
for the A.
Add rev B bugs and features.
The double write workaround for CURRSCB is only required if
abort pending is set. Remove this work around and set the
abort pending bug bit on the B at least until we have better
confirmation that the double write is always safe.
Add updated H2B identifiers
Move IOCell paramters into softc and add a hook for the
OSM to modify these as well as other settings prior to
committing them to the chip.
SLEW -> SLEWRATE
PREQDIS in DEVCONFIG1 went away after the A2.
Remove all code that references this bit. This
is especially important since this bit was reused
in the B for a different HW fix workaround.
Properly set the AHD_NEW_IOCELL_OPTS and
AHD_NEW_DFCNTRL_OPTS features for the B.
Remove stray/random extra 7901A generic PCI
table entry. Also switch the correct 7901A
generic entry to use ID_ALL_MASK since we
can only differentiate the 7901A from the
7902 by checking for a "type field" of 0xE.
Set AHD_INTCOLLISIONT_BUG for the Rev B.
Set the PREQDIS bit in DEVCONFIG1 for the B. The
bit is misnamed, but seems to disable a work-around
that breaks on the B on PCI busses.
Add a routine for testing memory mapped register access.
This will hopefully detect things like buggy via chipsets
so that the OSM can fallback to using I/O mapped access
when memory mapped I/O simply will not work.
Approved by: re (blanket)
diagnostic "Setting Mode" messages.
Use a read of HCNTRL to flush our write to CLRCMDCMPLT
on the RevB. This allows us to check to see if the sequencer
is paused and to initiate the interrupt collision workaround
without incuring an extra read.
Approved by: re (blanket)
PCI-X only workarounds are automatically masked out
if we are operating in PCI mode.
Make use of ahd_pci_test_register_access()
Approved by: re (blanket)
Move IOCell paramters into softc and add a hook for the
OSM to modify these as well as other settings prior to
committing them to the chip.
Approved by: re (blanket)
in the per-device kthread. This ensures that synchronisation with
mddestroy() succeeds even if the kthread was not waiting in tsleep()
at the time of the wakeup(). Among other things, this fixes the
problem of mdconfig getting stuck when an attempt is made to use a
zero-length file as a vnode-type backing store.
Approved by: re
aic7xxx.c:
aic7xxx.h:
aic7xxx.reg:
aic7xxx.seq:
Bring in the protocol violation handler from the U320
driver and replace the NO_IDENT sequencer interrupt code
with the PROTO_VIOLATION code. Support for this code
required the following changes:
SEQ_FLAGS:
IDENTIFY_SEEN -> NOT_IDENTIFIED
Added NO_CDB_SENT
SCB_CONTROL:
TARGET_SCB == STATUS_RCVD for initiator mode
scb->flags:
Added SCB_TARGET_SCB since we cannot rely on
TARGET_SCB as a target/initiator differentiator
due to it being overloaded in initiator mode to
indicate that status has been received.
aic7xxx.seq:
Move data fifo CLRCHN to mesgin_rdptrs which is a safer
location for doing this operation. This also saves a
sequencer instruction.
aic7xxx.c:
aic7xxx.h:
Change ahc/ahd_upate_neg_request() to take a "negotiation
type" enum that allows us to negotiate:
o only if the goal and current parameters differ.
o only if the goal is non-async
o always - even if the negotiation will be for async.
aic7xxx.seq:
Reset the FIFO whenever a short CDB transfer occurs
so that the FIFO contents do not corrupt a future CDB
transfer retry.
Add support for catching the various protocol violations
handled by ahc_handle_protocol_violation.
Reformat some comments.
aic7xxx.c:
aic7xxx.h:
Just for safety, have the aic7xxx driver probe
the stack depth.
aic7xxx.c:
aic7xxx.h:
Save and restore stack contents during diagnostics.
Some chip variants overwrite stale entries on a
stack "pop".
Don't use 0 to probe the stack depth. 0 is the typical
value used to backfill the stack if entries are overwritten
on a "pop".
aic7xxx.h:
Add a missing typedef.
Collapse SCB flag entries so they are bit contiguous.
Add AHD_ULTRA2_XFER_PERIOD for narrow fallback calculations
aic7xxx.c:
Don't panic (as a diagnostic to catch bugs) if we decided to
force the renegotiation of async even if we believe we are
already async. This should allow us to negotiate async instead
of the full user goal rate during startup if bus resets are
disabled.
Add a space to the end of the ahc/ahd_print_devinfo routines
so that it behaves as expected by the code that uses it.
Only force a renegotiation on a selection timeout
if the SCB was valid. Doing otherwise may be dangerous
as the connection was not valid for an unknown reason.
Add additional diagnostic output to ahc_dump_card_state(),
and have it use the register pretty printing functions.
Update ahc_reg_print() to handle a NULL cur_col.
Add a newline to ahc_dump_card_state() output.
Bring back "use_ppr". We need to use_ppr anytime
doppr is true or we have non-zero protocol options.
The later case was not handled in the recent removal
of use_ppr.
Move a comment and remove a useless clearing of use_ppr.
Don't disable ENBUSFREE when single stepping on
a DT capable controller. We cannot re-enable unexpected
busfree detection, so we must clear BUSFREE on each
step instead.
Correct the lookup of the SCB ID in ahc_handle_proto_error.
Remove a diagnostic printf.
Remove unecessary restoration of the STACK for older
chips.
Approved by: re (blanket)
This will hopefully detect things like buggy via chipsets
so that the OSM can fallback to using I/O mapped access
when memory mapped I/O simply will not work.
Approved by: re (blanket)
AHC_ALLOW_MEMIO is set, or the hint hint.ahc.N.allow_memio=1 is
set in the bootloader.
Make use of ah?_pci_test_register_access().
Approved by: re (blanket)
converting from individual vnode locks to the snapshot
lock, be sure to pass any waiting processes along to the
new lock as well. This transfer is done by a new function
in the lock manager, transferlockers(from_lock, to_lock);
Thanks to Lamont Granquist <lamont@scriptkiddie.org> for
his help in pounding on snapshots beyond all reason and
finding this deadlock.
Sponsored by: DARPA & NAI Labs.
1) Release the snapshot file lock while suspending the system. Otherwise
a process trying to read the lock may block on its containing directory
preventing the suspension from completing. Thanks to Sean Kelly
<smkelly@zombie.org> for finding this deadlock.
2) Replace some bdwrite's with bawrite's so as not to fill all the
buffers with dirty data. The buffers could not be cleaned as the
snapshot vnode was locked hence the system could deadlock when
making snapshots of really massive filesystems. Thanks to
Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp> for figuring
this out.
Sponsored by: DARPA & NAI Labs.
1) Record all device events when devctl is enabled, rather than just when
devd has devctl open. This is necessary to prevent races between when
a device arrives, and when devd starts.
2) Add hw.bus.devctl_disable to disable devctl, this can also be set as a
tunable.
3) Fix async support. Reset nonblocking and async_td in open. remove
async flags.
4) Free all memory when devctl is disabled.
Approved by: re (blanket)
before using it to write the superblock. This is to guard against
accidentally trashing the disklabel if the superblock format missed
being upgraded by the new kernel.
Reported by: Sam Leffler <sam@errno.com>
Sponsored by: DARPA & NAI Labs.
Approved by: Murray Stokely <murray@FreeBSD.org>
That reference is to be held only if daopen() has been successful
and until daclose() releases it. daclose() won't be called if
daopen() has failed, though.
Approved by: re, njl
MFC after: 1 week
Previous kernels unwantingly depended on this mapping, but as
of version 1.123 of src/sys/ia64/ia64/machdep.c this dependency
has been removed. Consequently, one has to update the kernel
before updating the loader. The documented/recommended upgrade
will suffice in this case.
Due to a visible (from the kernels point of view) change in
behaviour, bump the loader version number from 0.3 to 1.0.
Approved by: re (carte blanc)
o Add needed headers.
o Add stg_products[] product data and stg_match() function.
o Change stg_pccard_method[] to support both OLDCARD and NEWCARD.
Approved by: re
o Add needed headers.
o Add ncv_products[] product data and ncv_match() function.
o Change ncv_pccard_method[] to support both OLDCARD and NEWCARD.
Suggestion for REX-5572 matching part by imp.
Approved by: re
o Add needed headers.
o Add nsp_producs[] product data and nsp_match() function.
o Change nsp_pccard_method[] to support both OLDCARD and NEWCARD.
o Add warning to fall back to PIO mode when it cannot use SMIT mode.
This is needed because memories are not allocated with NEWCARD now.
Submitted by: takawata
Approved by: re
or stg driver. They are,
Macnica mPS110, PANASONIC(KME) KXLC004, Qlogic Fast SCSI,
Workbit Ultra Ninja-16, (ID based)
Future Domain SCSI2GO, IBM SCSI PCMCIA card, I-O DATA CBSC16,
Macnica mPS100, Newmedia BASICS-SCSI, RATOC REX-5536, RATOC REX-5536AM,
RATOC REX-5536M, RATOC REX5572, Workbit NinjaSCSI-3
(CIS based)
Note: We need vendor IDs WORKBIT2 and IODATA3 which is -1, since some
cards does not have IDs in the CIS and fails to be probed without
this fake vendor IDs.
o Change the strings of RATOC REX_R280 from REX-R280 to REX-R280/REX-9530.
This reminds us that REX-R280 and REX-R9530 have same ID (same product).
Reviewed by: imp
Approved by: re
Obtained from: /etc/defaults/pccard.conf,
List of CIS tupples by Toshihiko ARAI and PAO project:
http://www.linkclub.or.jp/~clover/cis/
Change suggestion by: HASEGAWA Tomoki <thasegawa@mta.biglobe.ne.jp>
for I-O DATA CBSC16 entry
