- Reset debug architecture and enable monitor for secondary
CPUs in init_secondary() rather than when configuring watchpoint, etc.
- Disable HW debugging capabilities when one of the CPU cores fails
to set up.
- Use dbg_capable() in a more atomic manner to avoid any mismatch
between CPUs.
Differential Revision: https://reviews.freebsd.org/D6009
- Enable monitor mode prior to accessing watchpoint
registers for v6, v6.1 architectures.
- Fix configuration scheme for v6, v6.1 and v7 Debug Archs
- Enable monitor unconditionally and for good instead
of enabling and disabling it (needed for single stepping
on on v6/v6.1)
Tested on RPI-B and Arndale
Differential Revision: https://reviews.freebsd.org/D6008
for C++. It clashes with the one in libc++'s <atomic> header.
(Previously, the _Atomic() macro was defined in <stdatomic.h>, which is
only for use with C11, but for various reasons it was moved to its
current location in r251804.)
Discussed with: bdrewery, ed
MFC after: 2 weeks
a preference for memory load instructions over large code footprints
with embedded immediate variables.
On amd64 CPUs from 2007-2008 there is not a significant change, but
amd64 CPUs from 2009-2010 get roughly 10% more throughput with this
code; amd64 CPUs from 2011-2012 get roughly 15% more throughput; and
AMD64 CPUs from 2013-2015 get 20-25% more throughput. The Raspberry
Pi 2 increases its throughput by 6-8%.
Sponsored by: Tarsnap Backup Inc.
Performance tested by: allanjude
MFC after: 3 weeks
floating point constant to int64_t. This avoids the runtime
conversion of the the other operand in a set of comparisons from
int64_t to floating point and doing the comparisions in floating
point.
Suggested by: lidl
Submitted by: Rasool Al-Saadi <ralsaadi@swin.edu.au>
MFC after: 2 weeks (with r300779)
Connect it to userland (libmd, libcrypt, sbin/md5) and kernel (crypto.ko)
Support for skein as a ZFS checksum algorithm was introduced in r289422
but is disconnected because FreeBSD lacked a Skein implementation.
A further commit will enable it in ZFS.
Reviewed by: cem
Sponsored by: ScaleEngine Inc.
Differential Revision: https://reviews.freebsd.org/D6166
- Assign frame sequence/fragment number before frame concatenation;
otherwise, frame header pointer (wh) will be invalid.
- Move this code block upper and eliminate duplicate 'lwh = mtod()'
assignment.
Tested with wpi(4) (transmitter) (STA mode) and urtwn(4) (receiver)
(HOSTAP mode).
Add zfsd, which deals with hard drive faults in ZFS pools. It manages
hotspares and replements in drive slots that publish physical paths.
cddl/usr.sbin/zfsd
Add zfsd(8) and its unit tests
cddl/usr.sbin/Makefile
Add zfsd to the build
lib/libdevdctl
A C++ library that helps devd clients process events
lib/Makefile
share/mk/bsd.libnames.mk
share/mk/src.libnames.mk
Add libdevdctl to the build. It's a private library, unusable by
out-of-tree software.
etc/defaults/rc.conf
By default, set zfsd_enable to NO
etc/mtree/BSD.include.dist
Add a directory for libdevdctl's include files
etc/mtree/BSD.tests.dist
Add a directory for zfsd's unit tests
etc/mtree/BSD.var.dist
Add /var/db/zfsd/cases, where zfsd stores case files while it's shut
down.
etc/rc.d/Makefile
etc/rc.d/zfsd
Add zfsd's rc script
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev.c
Fix the resource.fs.zfs.statechange message. It had a number of
problems:
It was only being emitted on a transition to the HEALTHY state.
That made it impossible for zfsd to take actions based on drives
getting sicker.
It compared the new state to vdev_prevstate, which is the state that
the vdev had the last time it was opened. That doesn't make sense,
because a vdev can change state multiple times without being
reopened.
vdev_set_state contains logic that will change the device's new
state based on various conditions. However, the statechange event
was being posted _before_ that logic took effect. Now it's being
posted after.
Submitted by: gibbs, asomers, mav, allanjude
Reviewed by: mav, delphij
Relnotes: yes
Sponsored by: Spectra Logic Corp, iX Systems
Differential Revision: https://reviews.freebsd.org/D6564
This implements SHA-512/256, which generates a 256 bit hash by
calculating the SHA-512 then truncating the result. A different initial
value is used, making the result different from the first 256 bits of
the SHA-512 of the same input. SHA-512 is ~50% faster than SHA-256 on
64bit platforms, so the result is a faster 256 bit hash.
The main goal of this implementation is to enable support for this
faster hashing algorithm in ZFS. The feature was introduced into ZFS
in r289422, but is disconnected because SHA-512/256 support was missing.
A further commit will enable it in ZFS.
This is the follow on to r292782
Reviewed by: cem
Sponsored by: ScaleEngine Inc.
Differential Revision: https://reviews.freebsd.org/D6061
When hwpmc stops sampling it will set the pm_state to something other
than PMC_STATE_RUNNING. This means the following sequence can happen:
CPU 0: Enter the interrupt handler
CPU 0: Set the thread TDP_CALLCHAIN pflag
CPU 1: Stop sampling
CPU 0: Call pmc_process_samples, sampling is stopped so clears ps_nsamples
CPU 0: Finishes interrupt processing with the TDP_CALLCHAIN flag set
CPU 0: Call pmc_capture_user_callchain to capture the user call chain
CPU 0: Find all the pmc sample are free so no call chains need to be captured
CPU 0: KASSERT because of this
This fixes the issue by checking if any of the samples have been stopped
and including this in te KASSERT.
PR: 204273
Reviewed by: bz, gnn
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D6581
to use TRYLOCK rather than just acquire the lock, so just do that.
Reviewed by: markj
Obtained from: projects/vnet
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D6578
This is like the WB222 coexistence (ie, "MCI", a message bus inside the
chip), and it's currently a cut/paste so I can start using it to flesh
out the differences with WB222.
It doesn't completely /do/ bluetooth coexistence, because it turns out
I need to add some contigmalloc'ed buffers to the btcoex path for this
type of hardware. I'm putting this work in the "people would like
to see functioning-ish btcoex before FreeBSD-11" bucket because I see
this as "broken".
Tested:
* QCA9535 (WB335) NIC, BT + 2GHz STA
avoid panicking debug kernels.
t4_tom does not keep track of a connection once it switches to ULP mode
iWARP. If the connection falls out of ULP mode the driver/hardware seq#
etc. are out of sync. A better fix would be to figure out what the
current seq# are, update the driver's state, and perform all sanity
checks as usual.
This also prevents tracing to a P_INEXEC process since it could race
with other processes attaching to it in filemon_event_process_exec() due
to the filemon_get_proc() race of incrementing ref and then locking the
filemon. With the no-P_INEXEC invariant in place the p_filemon may only
be the same or NULL when trying to drop it in
filemon_event_process_exec().
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
Differential Revision: https://reviews.freebsd.org/D6545
In the EARLY_AP_STARTUP case the APs are already running when a taskqgroup
is created, so adjust the group at the same time it is created.
Sponsored by: Netflix
If the parent is DEAD or connect_request_upcall() fails, the parent
mutex is left locked. This leads to a hang when process_mpa_request()
is called again for another child of the listening endpoint.
Submitted by: Krishnamraju Eraparaju @ Chelsio
Obtained from: upstream iw_cxgb4
Sponsored by: Chelsio Communications
The sys/types.h fix I proposed was only tested with zfs(4), not with
libzpool, which is where the build failure actually existed
Remove vm/vm_pageout.h from arc.c and zfs_vnops.c because they're both
unneeded
MFC after: 1 week
X-MFC with: r300865, r300870
In collaboration with: kib
Submitted by: alc
Sponsored by: EMC / Isilon Storage Division
ZFS's configuration needs to be updated whenever the physical path for a
device changes, but not when a new device is introduced. This is because new
devices necessarily cause config updates, but only if they are actually
accepted into the pool.
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c
Split vdev_geom_set_physpath out of vdev_geom_attrchanged. When
setting the vdev's physical path, only request a config update if
the physical path has changed. Don't request it when opening a
device for the first time, because the config sync will happen
anyway upstack.
sys/geom/geom_dev.c
Split g_dev_set_physpath and g_dev_set_media out of
g_dev_attrchanged
Submitted by: will, asomers
MFC after: 4 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D6428
sys/cam/scsi/scsi_xpt.c
Strip leading spaces off of a SCSI disk's reported serial number
when populating the CAM serial number. This affects the output of
"diskinfo -v" and the names of /dev/diskid/DISK-* device nodes,
among other things.
SPC5r05 says that the Product Serial Number field from the Unit
Serial Number VPD page is right-aligned. So any leading spaces are
not part of the actual serial number. Most devices don't left-pad
their serial numbers, but some do. In particular, the SN VPD page
that an LSI HBA emulates for a SATA drive contains enough
left-padding to fill a 20-byte field.
UPDATING
Add a note to UPDATING, because some users may have to update
/etc/fstab or geom labels.
Reviewed by: ken, mav
MFC after: Never
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D6516
wrap the implementation so that it returns an error if INTRNG support is
not available. It should be possible to write a non-INTRNG implementation
of this function some day. In the meantime, there is code that contains
calls to this function (so the decl is needed), but have runtime checks to
avoid calling it in the non-INTRNG case.
vm/vm_pageout.h grew a dependency on the bool typedef in r300865
arc.c didn't include sys/types.h, which included the definition for the typedef
Other items (ofed, drm2) might need to be chased for this commit.
X-MFC with: r300865
MFC after: 1 week
Pointyhat to: alc
Sponsored by: EMC / Isilon Storage Division
directly pass the request otherwise use a buffer that is a
multiple of the media size. This speeds up I/O quite a bit
when using large transfer sizes on 4Kn disks etc.
MFC after: 1 week
indicate that threads are waiting for free pages to become available and
(2) to indicate whether a wakeup call has been sent to the page daemon.
The trouble is that a single flag cannot really serve both purposes, because
we have two distinct targets for when to wakeup threads waiting for free
pages versus when the page daemon has completed its work. In particular,
the flag will be cleared by vm_page_free() before the page daemon has met
its target, and this can lead to the OOM killer being invoked prematurely.
To address this problem, a new flag "vm_pageout_wanted" is introduced.
Discussed with: jeff
Reviewed by: kib, markj
Tested by: markj
Sponsored by: EMC / Isilon Storage Division
includes the FDT option. Use OPT_FDT to conditionally compile modules
that require FDT support.
In the past we've gotten away with using the arch name as a proxy for FDT
support in makefile conditional logic, but now mips has some platforms with
fdt support and some without and we need a more direct test.
The lock was temporarily dropped for vrele calls, but they can be
postponed to a point where the lock is not held in the first place.
While here shuffle other code not needing the lock.
former return the current status for the latter to use. Without this we
could enable interrupts when they shouldn't be.
It's still not quite right as it should only update the bits we care about,
bit should be good enough until the correct fix can be tested.
PR: 204270
Obtained from: ABT Systems Ltd
Sponsored by: The FreeBSD Foundation
Use for forever loop instead of while.
Found by lint on illumos.
Submitted by: Garrett D'Amore <garrett at damore.org>
Sponsored by: Solarflare Communications, Inc.
MFC after: 1 week
