Ryan Stone [Thu, 8 Aug 2013 19:30:49 +0000 (19:30 +0000)]
Allow drivers to return BUS_PROBE_NOWILDCARD from their attach routine to
match devices where the driver class was fixed but the unit number was
wildcarded. This better matches the documented behaviour in
DEVICE_PROBE(9).
gpt_entries is used as limit for the number of partition entries in
the GEOM_PART. Instead of just using number of entries from the GPT
header, calculate this limit based on the reserved space between
GPT header and first available LBA.
Glen Barber [Thu, 8 Aug 2013 15:59:00 +0000 (15:59 +0000)]
When newvers.sh is run, it is possible that the svnversion
(or svnliteversion) in the current lookup path is not what
was used to check out the tree. If an incompatible version
is used, the svn revision number is not reported in uname(1).
Run ${svnversion} on newvers.sh itself when evaluating if the
svn(1) in use is compatible with the tree. Fallback to an
empty ${svnversion} if necessary.
With this change, svnliteversion from base is only used
if no compatible svnversion is found, so with this change,
the version of svn(1) from the ports tree is evaluated first.
Requested by: many
MFC after: 3 days
X-MFC-To: stable/9, releng/9.2 only
Part of r245761 makes "grep -D skip" broken for pipes, i.e.
echo xxx | grep -D skip xxx
returns nothing. Instead of just removing added S_ISFIFO condition
(originally absent in this version of grep), make it work as latest
GNU version does: don't skip directories and devices if fd == STDIN_FILENO.
According to POSIX \ in the fnmatch(3) pattern should escape
any character including '\0', but our version replace escaped '\0'
with '\\'.
I.e. fnmatch("\\", "\\", 0) should not match while fnmatch("\\", "", 0)
should (Linux and NetBSD does the same). Was vice versa.
Adrian Chadd [Thu, 8 Aug 2013 05:52:41 +0000 (05:52 +0000)]
Cap the number of streams supported to two for now.
I haven't yet reviewed the Intel driver(s) in more depth to see if
there are 1x1 NICs that report they support 2 transmit/receive chains..
if so then we'll have to update this.
Tested:
* Intel 4965, which is a 2x2 device with 3 RX and 2 TX chains.
Adrian Chadd [Thu, 8 Aug 2013 05:09:35 +0000 (05:09 +0000)]
Convert net80211 over to using if_transmit for the dispatch from the
upper layer(s).
This eliminates the if_snd queue from net80211. Yay!
This unfortunately has a few side effects:
* It breaks ALTQ to net80211 for now - sorry everyone, but fixing
parallelism and eliminating the if_snd queue is more important
than supporting this broken traffic scheduling model. :-)
* There's no VAP and IC flush methods just yet - I think I'll add
some NULL methods for now just as placeholders.
* It reduces throughput a little because now net80211 will drop packets
rather than buffer them if the driver doesn't do its own buffering.
This will be addressed in the future as I implement per-node software
queues.
Peter Wemm [Thu, 8 Aug 2013 01:53:27 +0000 (01:53 +0000)]
Our libc iconv (unlike gnu iconv and the citrus code in NetBSD) has a
bypass mode when src == dst. Unfortunately, there are tools in ports
that pass byte streams through iconv to determine if the encodings
are valid. eg: gettext-0.18.3+.
Disable the optimization and behave like the other implementations.
Xin LI [Wed, 7 Aug 2013 22:21:00 +0000 (22:21 +0000)]
MFV r254071:
Fix a regression introduced by fix for Illumos bug #3834. Quote from
Matthew Ahrens on the Illumos issue:
ztest fails this assertion because ztest_dmu_read_write() does
dmu_tx_hold_free(tx, bigobj, bigoff, bigsize);
and then
dmu_object_set_checksum(os, bigobj,
(enum zio_checksum)ztest_random_dsl_prop(ZFS_PROP_CHECKSUM), tx);
If the region to free is past the end of the file, the DMU assumes that there
will be nothing to do for this object. However, ztest does set_checksum(),
which must modify the dnode. The fix is for ztest to also call
dmu_tx_hold_bonus(tx, bigobj);
so we can account for the dirty data associated with setting the checksum
Xin LI [Wed, 7 Aug 2013 21:16:14 +0000 (21:16 +0000)]
MFV r254070:
Merge vendor bugfix for ZFS test suite that triggers false positives.
Illumos ZFS issues:
3949 ztest fault injection should avoid resilvering devices
3950 ztest: deadman fires when we're doing a scan
3951 ztest hang when running dedup test
3952 ztest: ztest_reguid test and ztest_fault_inject don't place nice together
Improve the sysctl symbol extraction from the kernel so that it find more
(all?) sysctl's. Previously some where missed, depending on how they were
defined.
John Baldwin [Wed, 7 Aug 2013 19:56:35 +0000 (19:56 +0000)]
Don't emit a spurious EVFILT_PROC event with no fflags set on process exit
if NOTE_EXIT is not being monitored. The rationale is that a listener
should only get an event for exit() if they registered interest via
NOTE_EXIT. This matches the behavior on OS X.
- Don't save the exit status on process exit unless NOTE_EXIT is being
monitored.
- Add an internal EV_DROP flag that requests kqueue_scan() to free the
knote without signalling it to userland and use this when a process
exits but the fflags in the knote is zero.
Xin LI [Wed, 7 Aug 2013 19:51:54 +0000 (19:51 +0000)]
Update vendor/illumos/dist and vendor-sys/illumos/dist
to illumos-gate 14120:e9e346400fef:
Illumos ZFS issues:
3949 ztest fault injection should avoid resilvering devices
3950 ztest: deadman fires when we're doing a scan
3951 ztest hang when running dedup test
3952 ztest: ztest_reguid test and ztest_fault_inject don't place nice together
Split the pagequeues per NUMA domains, and split pageademon process
into threads each processing queue in a single domain. The structure
of the pagedaemons and queues is kept intact, most of the changes come
from the need for code to find an owning page queue for given page,
calculated from the segment containing the page.
The tie between NUMA domain and pagedaemon thread/pagequeue split is
rather arbitrary, the multithreaded daemon could be allowed for the
single-domain machines, or one domain might be split into several page
domains, to further increase concurrency.
Right now, each pagedaemon thread tries to reach the global target,
precalculated at the start of the pass. This is not optimal, since it
could cause excessive page deactivation and freeing. The code should
be changed to re-check the global page deficit state in the loop after
some number of iterations.
The pagedaemons reach the quorum before starting the OOM, since one
thread inability to meet the target is normal for split queues. Only
when all pagedaemons fail to produce enough reusable pages, OOM is
started by single selected thread.
Launder is modified to take into account the segments layout with
regard to the region for which cleaning is performed.
Based on the preliminary patch by jeff, sponsored by EMC / Isilon
Storage Division.
Reviewed by: alc
Tested by: pho
Sponsored by: The FreeBSD Foundation
Change the pmap_ts_referenced() method of amd64 pmap to use shared
pvh_global_lock. This allows the method to be executed in parallel,
avoiding undue contention on the pvh_global_lock for the multithreaded
pagedaemon.
The pmap_ts_referenced() function has to inspect the page mappings for
several pmaps, which need to be locked while pv list lock is owned.
This contradicts to the lock order, where pmap lock is before pv list
lock. Introduce the generation count for the pv list of the page or
superpage, which indicate any change in the pv list, and, as usual,
perform restart of the iteration if generation changed while pv lock
was dropped for blocking acquire of a pmap lock.
Reported and tested by: pho
Reviewed by: alc
Sponsored by: The FreeBSD Foundation
Don't bother trying to work around buffers which are not aligned on a cache
line boundary. It has never been 100% correct, and it can't work on SMP,
because nothing prevents another core from accessing data from an unrelated
buffer in the same cache line while we invalidated it. Just use bounce pages
instead.
Reviewed by: ian
Approved by: mux (mentor) (implicit)
Alexander Motin [Wed, 7 Aug 2013 11:34:20 +0000 (11:34 +0000)]
Remove droping topology mutex after iterating 100 periphs in CAMGETPASSTHRU.
That is not so slow and so often operation to handle unneeded otherwise
xsoftc.xpt_generation and respective locking complications.
David Chisnall [Wed, 7 Aug 2013 11:30:04 +0000 (11:30 +0000)]
Remove __attribute__((__aligned__)) that generates incorrect alignment on compilers that know about SSE. Code left over from old header that thought that 64 bits was the maximum alignment that anything would ever need...
Bring initial support for Allwinner A20 SoC (Cubieboard2).
Add support for A20 timer.
Correct interrupt offset depending from chip.
Add basic code for CPU configuration module.
For now, add kernel config and dts file
(only FDT blob related problem needs to be solved later in
order to have one kernel for both cubieboard1 and 2).
Jeff Roberson [Wed, 7 Aug 2013 06:21:20 +0000 (06:21 +0000)]
Replace kernel virtual address space allocation with vmem. This provides
transparent layering and better fragmentation.
- Normalize functions that allocate memory to use kmem_*
- Those that allocate address space are named kva_*
- Those that operate on maps are named kmap_*
- Implement recursive allocation handling for kmem_arena in vmem.
Rui Paulo [Wed, 7 Aug 2013 01:01:58 +0000 (01:01 +0000)]
Fix a timing issue with the wired driver.
After configuring the interface, wait for the link to become active.
Many ethernet drivers reset the chip when we set multicast filters
(causing significant delays due to link re-negotiation) and, by the time
we start sending packets, they are discared instead of going to the ether.
Mark Johnston [Wed, 7 Aug 2013 00:28:17 +0000 (00:28 +0000)]
Pass variables prefixed with both LD_ and LD_32_ to the run-time linker.
This prevents unintentional execution of programs when running ldd(1) on
32-bit Linux binaries.
Change <sys/diskpc98.h> to not redefine the same symbols that are
being defined in <sys/diskmbr.h>. Instead give the symbols here a
"PC98_" prefix. This way, both <sys/diskmbr.h> and <sys/diskpc98.h>
can be included in the same C source file.
The renaming is trivial. The only gotcha is that DOSBBSECTOR is
also redefined from 0 to 1. This because DOSBBSECTOR was always
used in conjunction with an addition of 1. The PC98_BBSECTOR symbol
is defined as 1 and the expression is simplified.
Note: it is not believed that ports are seriously impacted; or at
all for that matter.
Sean Bruno [Tue, 6 Aug 2013 21:30:37 +0000 (21:30 +0000)]
Adjust make knobs to know that WITH_ICONV installs a /usr/bin/iconv
Remove it if the knob isn't tweaked. Certain ports seem to think that
if /usr/bin/iconv exists, then libc has built in libiconv things and will
blow up pretty nicely when built.
Marius Strobl [Tue, 6 Aug 2013 19:14:02 +0000 (19:14 +0000)]
- Fix a bug in the MSI allocation logic so an MSI is also employed if a
controller supports only a single message. I haven't seen such an adapter
out in the wild, though, so this change likely is a NOP.
While at it, further simplify the MSI allocation logic; there's no need
to check the number of available messages on our own as pci_alloc_msi(9)
will just fail if it can't provide us with the single message we want.
- Nuke the unused softc of aacch(4).
Marius Strobl [Tue, 6 Aug 2013 18:55:59 +0000 (18:55 +0000)]
As it turns out, MSIs are broken with 2820SA so introduce an AAC_FLAGS_NOMSI
quirk and apply it to these controllers [1]. The same problem was reported
for 2230S, in which case it wasn't actually clear whether the culprit is the
controller or the mainboard, though. In order to be on the safe side, flag
MSIs as being broken with the latter type of controller as well. Given that
these are the only reports of MSI-related breakage with aac(4) so far and
OSes like OpenSolaris unconditionally employ MSIs for all adapters of this
family, however, it doesn't seem warranted to generally disable the use of
MSIs in aac(4).
While it, simplify the MSI allocation logic a bit; there's no need to check
for the presence of the MSI capability on our own as pci_alloc_msi(9) will
just fail when these kind of interrupts are not available.
Reported and tested by: David Boyd [1]
Jack F Vogel [Tue, 6 Aug 2013 18:00:53 +0000 (18:00 +0000)]
When the igb driver is static there are cases when early interrupts occur,
resulting in a panic in refresh_mbufs, to prevent this add a check in the
interrupt handler for DRV_RUNNING.
Hiroki Sato [Tue, 6 Aug 2013 17:10:52 +0000 (17:10 +0000)]
Fix incompatibility in ICMPV6CTL_ND6_PRLIST sysctl, and SIOCGPRLST_IN6,
SIOCGDRLST_IN6, and SIOCGNBRINFO_IN6 ioctl. These userland interfaces
treat expiration times in time_second, not time_uptime.
Kirk McKusick [Tue, 6 Aug 2013 16:50:05 +0000 (16:50 +0000)]
This bug fix is in a code path in rename taken when there is a
collision between a rename and an open system call for the same
target file. Here, rename releases its vnode references, waits for
the open to finish, and then restarts by reacquiring its needed
vnode locks. In this case, rename was unlocking but failing to
release its reference to one of its held vnodes. The effect was
that even after all the actual references to the vnode had gone,
the vnode still showed active references. For files that had been
removed, their space was not reclaimed until the filesystem was
forcibly unmounted.
This bug manifested itself in the Postgres server which would
leak/lose hundreds of files per day amounting to many gigabytes of
disk space. This bug required shutting down Postgres, forcibly
unmounting its filesystem, remounting its filesystem and restarting
Postgres every few days to recover the lost space.
Reported by: Dan Thomas and Palle Girgensohn
Bug-fix by: kib
Tested by: Dan Thomas and Palle Girgensohn
MFC after: 2 weeks
Andriy Gapon [Tue, 6 Aug 2013 15:51:56 +0000 (15:51 +0000)]
opensolaris code: translate INVARIANTS to DEBUG and ZFS_DEBUG
Do this by forcing inclusion of
sys/cddl/compat/opensolaris/sys/debug_compat.h
via -include option into all source files from OpenSolaris.
Note that this -include option must always be after -include opt_global.h.
Additionally, remove forced definition of DEBUG for some modules and fix
their build without DEBUG.
Also, meaning of DEBUG was overloaded to enable WITNESS support for some
OpenSolaris (primarily ZFS) locks. Now this overloading is removed and
that use of DEBUG is replaced with a new option OPENSOLARIS_WITNESS.
Marius Strobl [Tue, 6 Aug 2013 15:34:11 +0000 (15:34 +0000)]
Add MD (for now) atomic_store_acq_<type>() and use it in pmap_activate()
to get the semantics when setting the PMAP right. Prior to r251782, the
latter already used implicit acquire semantics, which - currently - means
to not employ additional explicit memory barriers under the hood (see also
r225889).
Alexander Motin [Tue, 6 Aug 2013 14:41:41 +0000 (14:41 +0000)]
Block reporting of ZFS features for suspended pools.
Before executing any subcommand, zpool tool fetches pools configuration from
the kernel. Before features support was added, kernel was regenerating that
configuration based on data always present in memory. Unfortunately, pool
features list and activity counters are not such. They are stored in ZAP,
that normally resides in ARC, but under heavy memory pressure may be swapped
out. If pool is suspended at this point, there is no way to recover it back
since any zpool command will stuck.
This change has one predictable flaw: `zpool upgrade` always wish to upgrade
suspended pools, but fortunately it can't do it due to the suspension.
Alexander Motin [Tue, 6 Aug 2013 14:30:28 +0000 (14:30 +0000)]
Disable r252840 when ZFS TRIM is enabled (vfs.zfs.trim.enabled=1) and really
disable TRIM otherwise.
r252840 (illumos bug 3836) is based on assumption that zio_free_sync() has
no lock dependencies and should complete immediately. Unfortunately, with our
TRIM implementation that is not true due to ZIO_STAGE_VDEV_IO_START added
to the ZIO_FREE_PIPELINE, which, while not really accessing devices, still
acquires SCL_ZIO lock for read to be sure devices won't disappear.
When TRIM is disabled, this patch enables direct free execution from r252840
and removes ZIO_STAGE_VDEV_IO_START and ZIO_STAGE_VDEV_IO_ASSESS stages from
the pipeline to avoid lock acquisition. Otherwise it queues free request as
it was before r252840.
Alexander Motin [Tue, 6 Aug 2013 14:23:33 +0000 (14:23 +0000)]
Make `zpool clear` to reopen also reconnected cache and spare devices.
Since `zpool status` reports about such kinds of errors, it is strange
that they are not cleared by `zpool clear`.
Alexander Motin [Tue, 6 Aug 2013 14:20:41 +0000 (14:20 +0000)]
Make ZFS to use separate thread to handle SPA_ASYNC_REMOVE async events.
Existing async thread is running only on successfull spa_sync() completion,
that is impossible in case of pool loosing required (last) disk(s). That
indefinite delay of SPA_ASYNC_REMOVE processing made ZFS to not close the
lost disks, preventing GEOM/CAM from destroying devices and reusing names
on later disk reattach.
In earlier version of the patch I've tried to just run existing thread
immediately, unrelated to spa_sync() completion, but that exposed number
of situations where it could stuck due to locks held by stuck spa_sync(),
that are required for other kinds of async events.
Experiments with OpenIndiana snapshot confirmed that they also have this
issue with lost disks reattach.
Erwin Lansing [Tue, 6 Aug 2013 06:24:37 +0000 (06:24 +0000)]
Remove weirdly-named autofoo file. This is not needed for the (FreeBSD)
build, and freebsd-update chokes on it. Somehow it did manage to be merged,
despite my best efforts not to.
Erwin Lansing [Tue, 6 Aug 2013 06:22:54 +0000 (06:22 +0000)]
Update Bind to 9.8.5-P2
New Features
Adds a new configuration option, "check-spf"; valid values are
"warn" (default) and "ignore". When set to "warn", checks SPF
and TXT records in spf format, warning if either resource record
type occurs without a corresponding record of the other resource
record type. [RT #33355]
Adds support for Uniform Resource Identifier (URI) resource
records. [RT #23386]
Adds support for the EUI48 and EUI64 RR types. [RT #33082]
Adds support for the RFC 6742 ILNP record types (NID, LP, L32,
and L64). [RT #31836]
Feature Changes
Changes timing of when slave zones send NOTIFY messages after
loading a new copy of the zone. They now send the NOTIFY before
writing the zone data to disk. This will result in quicker
propagation of updates in multi-level server structures. [RT #27242]
"named -V" can now report a source ID string. (This is will be
of most interest to developers and troubleshooters). The source
ID for ISC's production versions of BIND is defined in the "srcid"
file in the build tree and is normally set to the most recent
git hash. [RT #31494]
Response Policy Zone performance enhancements. New "response-policy"
option "min-ns-dots". "nsip" and "nsdname" now enabled by default
with RPZ. [RT #32251]
Kirk McKusick [Mon, 5 Aug 2013 22:02:45 +0000 (22:02 +0000)]
With the addition of journalled soft updates, the "newblk" structures
persist much longer than previously. Historically we had at most 100
entries; now the count may reach a million. With the increased count
we spent far too much time looking them up in the grossly undersized
newblk hash table. Configure the newblk hash table to accurately reflect
the number of entries that it must index.
Kirk McKusick [Mon, 5 Aug 2013 22:01:16 +0000 (22:01 +0000)]
To better understand performance problems with journalled soft updates,
we need to collect the highest level of allocation for each of the
different soft update dependency structures. This change collects these
statistics and makes them available using `sysctl debug.softdep.highuse'.
Hiroki Sato [Mon, 5 Aug 2013 20:13:02 +0000 (20:13 +0000)]
- Use time_uptime instead of time_second in data structures for
PF_INET6 in kernel. This fixes various malfunction when the wall time
clock is changed. Bump __FreeBSD_version to 1000041.
- Use clock_gettime(CLOCK_MONOTONIC_FAST) in userland utilities.
Andrew Turner [Mon, 5 Aug 2013 19:06:28 +0000 (19:06 +0000)]
When entering exception handlers we may not have an aligned stack. This is
because an exception may happen at any time. The stack alignment rules on
ARM EABI state the only place the stack must be 8-byte aligned is on a
function boundary.
If an exception happens while a function is setting up or tearing down it's
stack frame it may not be correctly aligned. There is also no requirement
for it to be when the function is a leaf node.
The fix is to align the stack after we have stored a backup of the old stack
pointer, but before we have stored anything in the trapframe. Along with
this we need to adjust the size of the trapframe by 4 bytes to ensure the
stack below it is also correctly aligned.
The tmpfs_alloc_vp() is used to instantiate vnode for the tmpfs node,
in particular, from the tmpfs_lookup VOP method. If LK_NOWAIT is not
specified in the lkflags, the lookup is supposed to return an alive
vnode whenever the underlying node is valid.
Currently, the tmpfs_alloc_vp() returns ENOENT if the vnode attached
to node exists and is being reclaimed. This causes spurious ENOENT
errors from lookup on tmpfs and corresponding random 'No such file'
failures from syscalls working with tmpfs files.
Fix this by waiting for the doomed vnode to be detached from the tmpfs
node if sleepable allocation is requested.
Note that filesystems which use vfs_hash.c, correctly handle the case
due to vfs_hash_get() looping when vget() returns ENOENT for sleepable
requests.
Reported and tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Alexander Motin [Mon, 5 Aug 2013 11:48:40 +0000 (11:48 +0000)]
MFprojects/camlock r249505:
Change CCB queue resize logic to be able safely handle overallocations:
- (re)allocate queue space in power of 2 chunks with 64 elements minimum
and never shrink it; with only 4/8 bytes per element size is insignificant.
- automatically reallocate the queue to double size if it is overflowed.
- if queue reallocation failed, store extra CCBs in unsorted TAILQ,
fetching them back as soon as some queue element is freed.
To free space in CCB for TAILQ linking, change highpowerq from keeping
high-power CCBs to keeping devices frozen due to high-power CCBs.
This encloses all pieces of queue resize logic inside of cam_queue.[ch],
removing some not obvious duties from xpt_release_ccb().
Glen Barber [Mon, 5 Aug 2013 10:26:42 +0000 (10:26 +0000)]
Redirect svnversion stderr to /dev/null if we cannot determine
the tree version, for example if the tree is checked out with an
outdated svn from ports, but the base system svnlite is built.
Attilio Rao [Mon, 5 Aug 2013 08:55:35 +0000 (08:55 +0000)]
Revert r253939:
We cannot busy a page before doing pagefaults.
Infact, it can deadlock against vnode lock, as it tries to vget().
Other functions, right now, have an opposite lock ordering, like
vm_object_sync(), which acquires the vnode lock first and then
sleeps on the busy mechanism.
Before this patch is reinserted we need to break this ordering.
Jeff Roberson [Mon, 5 Aug 2013 00:28:03 +0000 (00:28 +0000)]
- Introduce a specific function, pmap_remove_kernel_pde, for removing
huge pages in the kernel's address space. This works around several
asserts from pmap_demote_pde_locked that did not apply and gave false
warnings.
Attilio Rao [Sun, 4 Aug 2013 21:07:24 +0000 (21:07 +0000)]
The page hold mechanism is fast but it has couple of fallouts:
- It does not let pages respect the LRU policy
- It bloats the active/inactive queues of few pages
Try to avoid it as much as possible with the long-term target to
completely remove it.
Use the soft-busy mechanism to protect page content accesses during
short-term operations (like uiomove_fromphys()).
After this change only vm_fault_quick_hold_pages() is still using the
hold mechanism for page content access.
There is an additional complexity there as the quick path cannot
immediately access the page object to busy the page and the slow path
cannot however busy more than one page a time (to avoid deadlocks).
Fixing such primitive can bring to complete removal of the page hold
mechanism.
Attilio Rao [Sun, 4 Aug 2013 15:56:19 +0000 (15:56 +0000)]
Remove unnecessary soft busy of the page before to do vn_rdwr() in
kern_sendfile() which is unnecessary.
The page is already wired so it will not be subjected to pagefault.
The content cannot be effectively protected as it is full of races
already.
Multiple accesses to the same indexes are serialized through vn_rdwr().
Hiroki Sato [Sun, 4 Aug 2013 06:36:17 +0000 (06:36 +0000)]
- Reimplement $gif_interfaces as a variant of $cloned_interfaces.
Newly-configured systems should use $cloned_interfaces.
- Call clone_{up,down}() and ifnet_rename() in rc.d/netif {start,stop}.
ifnet_rename() now accepts an interface name list as its argument.
- Add rc.d/netif clear. The "clear" subcommand is basically equivalent to
"stop" but it does not call clone_down().
- Add "ifname:sticky" keyword into $cloned_interfaces. If :sticky is
specified, the interface will not be destroyed in rc.d/netif stop.
- Add cloned_interfaces_sticky={YES,NO}. This variable globally sets
:sticky keyword above for all interfaces. The default value is NO.
When cloned_interfaces_sticky=YES, :nosticky keyword can be used to
override it on per interface basis.
Fix the bootable CD:
o We need wait a bit before attempting the root mount. The CD drives
on HP machines (typical) go through the management controller so
that it can be virtualized. In practice what this means is that it
is slow to detect and attach.
o Tell the kernel what to use as the root file system. The /etc/fstab
trick doesn't work, because we're on the EFI-compatble file system.
Dimitry Andric [Sat, 3 Aug 2013 16:23:43 +0000 (16:23 +0000)]
After r253839, which modifies ld's behaviour to not automatically pull
in needed libraries, change libc++.so into a linker script, so it can
automatically pull in libcxxrt.so.
Ian Lepore [Sat, 3 Aug 2013 13:31:10 +0000 (13:31 +0000)]
Tweak the imx debug console code so that it works with multiple SoCs.
Instead of hard-coding the uart register addresses for the imx51, use
a variable that defaults to the imx51 address. When debugging another
imx-family SoC, the variable can be set early in initarm() to provide
full console/printf support for debugging early boot.
Peter Grehan [Sat, 3 Aug 2013 03:16:42 +0000 (03:16 +0000)]
Follow-up commit to fix CR0 issues. Maintain
architectural state on CR vmexits by guaranteeing
that EFER, CR0 and the VMCS entry controls are
all in sync when transitioning to IA-32e mode.