This change fixes a race in device side mode during clear-stall from
host, which can cause data to be sent too early on the given
endpoint.
Approved by: re (kib)
MFC after: 1 week
thing all the other architectures already do) thus just initialize
kernel_pmap in pmap_bootstrap().
Reported by: alc
Reviewed by: alc, marius
Tested by: flo, marius
Approved by: re (kib)
MFC after: 1 week
we were accounting the newly created process to its parent instead
of the child itself. This caused problems later, when the child
changed its credentials - the per-uid, per-jail etc counters were
not properly updated, because the maxproc counter in the child
process was 0.
Approved by: re (kib)
initialization. Prior to this change packets may be transmitted with an
incorrect checksum.
Em(4) already has an equivalent change in r213234.
Obtained From: Sandvine
MFC After: 1 week
Approved by: re (bz)
patch modifies makesyscalls.sh to prefix all of the non-compatibility
calls (e.g. not linux_, freebsd32_) with sys_ and updates the kernel
entry points and all places in the code that use them. It also
fixes an additional name space collision between the kernel function
psignal and the libc function of the same name by renaming the kernel
psignal kern_psignal(). By introducing this change now we will ease future
MFCs that change syscalls.
Reviewed by: rwatson
Approved by: re (bz)
build it with and without INET/INET6 support.
Submitted by: Alexander V. Chernikov <melifaro at yandex-team.ru> [1]
Tested by: Alexander V. Chernikov <melifaro at yandex-team.ru> [1]
Approved by: re (bz)
MFC after: 2 weeks
the code to have the fall-through path to follow the likely target.
Do not use intermediate register to reload user %rsp.
Proposed by: alc
Reviewed by: alc, jhb
Approved by: re (bz)
MFC after: 2 weeks
If it overflows before the taskqueue can run, the task will be
re-added to the taskqueue and cause a loop in the task list.
Reported by: Arnaud Lacombe <lacombar@gmail.com>
Submitted by: Ryan Stone <rysto32@gmail.com>
Reviewed by: jhb
Approved by: re (kib)
MFC after: 1 day
We are allocating some kilobytes of extra memory during USB device enumeration.
This does not change alot under FreeBSD, but makes sense for various embedded
operating systems using the FreeBSD USB stack, which have less memory
resources available.
Approved by: re (kib)
MFC after: 1 week
on vfc_name to set vfc_typenum, so that vfc_typenum doesn't
change when file systems are loaded in different orders. This
keeps NFS file handles from changing, for file systems that
use vfc_typenum in their fsid. This change is controlled via
a loader.conf variable called vfs.typenumhash, since vfc_typenum
will change once when this is enabled. It defaults to 1 for
9.0, but will default to 0 when MFC'd to stable/8.
Tested by: hrs
Reviewed by: jhb, pjd (earlier version)
Approved by: re (kib)
MFC after: 1 month
gpt and zfs boot blocks are not nearly as size-constrained as boot2
from which they inherited their current optimization and anti-optimization
options. As such the current options do not provide any benefit, but
make debugging of the code much harder.
Also, it has been demonstrated that combination of -mrtd and
-fno-unit-at-a-time may result in mis-compilation of the boot code
with the current base gcc.
Additionally, intermediate assembly file filtering is removed for
zfsboot.
The new boot blocks are all compile- and boot- tested using qemu.
gptzfsboot is tested with real hardware.
Reported by: Peter Jeremy <peterjeremy@acm.org> [miscompilation]
Discussed with: bde, jhb
Tested by: Sebastian Chmielewski <chmielsster@gmail.com> [gptzfsboot]
Approved by: re (kib)
MFC after: 3 weeks
The utility is not connected to the build, so it should be safe
to update it.
To do: move the utility to tools/.
Some code is provided by Peter Jeremy <peterjeremy@acm.org>
Tested by: Sebastian Chmielewski <chmielsster@gmail.com>,
Peter Jeremy <peterjeremy@acm.org> (earlier versions)
Approved by: re (kib)
MFC after: 4 days
(r225485). When setting an interface name to it, the following
configurations will be enabled:
1. "no_radr" is set to all IPv6 interfaces automatically.
2. "-no_radr accept_rtadv" will be set only for $ipv6_cpe_wanif. This is
done just before evaluating $ifconfig_IF_ipv6 in the rc.d scripts (this
means you can manually supersede this configuration if necessary).
3. The node will add RA-sending routers to the default router list
even if net.inet6.ip6.forwarding=1.
This mode is added to conform to RFC 6204 (a router which connects
the end-user network to a service provider network). To enable
packet forwarding, you still need to set ipv6_gateway_enable=YES.
Note that accepting router entries into the default router list when
packet forwarding capability and a routing daemon are enabled can
result in messing up the routing table. To minimize such unexpected
behaviors, "no_radr" is set on all interfaces but $ipv6_cpe_wanif.
Approved by: re (bz)
options defined in the kernel config. This more closely matches the
behavior of other modules which inherit configuration settings from the
kernel configuration during a kernel + modules build.
Reviewed by: luigi
Approved by: re (kib)
MFC after: 1 week
of the device boundry.
While this is generally ok, the problem is that all the consumers
handle similar cases (and expect to catch) ENOSPC for this (for a
reference look at minidumpsys() and dumpsys() constructions). That
ends up in consumers not recognizing the issue and amd64 failing to
retry if the number of pages grows up during minidump.
Fix this by returning ENOSPC in dump_write() and while here add some
more diagnostic on involved values.
Sponsored by: Sandvine Incorporated
In collabouration with: emaste
Approved by: re (kib)
MFC after: 10 days
the BAR after parsing the CIS. This forces the resource range to be
reallocated if the BAR is reused by the device.
Submitted by: deischen
Reviewed by: imp
Approved by: re (kib)
In revision 223722 we introduced support for driver ioctls on init/lock
state devices. Unfortunately the call to ttydevsw_cioctl() clobbers the
value of the error variable, meaning that in many cases ioctl() will now
return ENOTTY, even though the ioctl() was processed properly.
Reported by: Boris Samorodov <bsam ipt ru>
Patch by: jilles@
Approved by: re@ (kib@)
sequence. The effect is ~1% on the microbenchmark.
In particular, do not restore registers which are preserved by the
C calling sequence. Align the jump target. Avoid unneeded memory
accesses by calculating some data in syscall entry trampoline.
Reviewed by: jhb
Approved by: re (bz)
MFC after: 2 weeks
- Axe out the SHOW_BUSYBUFS option and uses a tunable for selectively
enable/disable it, which is defaulted for not printing anything (0
value) but can be changed for printing (1 value) and be verbose (2
value)
- Improves the informations outputed: right now, there is no track of
the actual struct buf object or vnode which are referenced by the
shutdown process, but it is printed the related struct bufobj object
which is not really helpful
- Add more verbosity about the state of the struct buf lock and the
vnode informations, with the latter to be activated separately by the
sysctl
Sponsored by: Sandvine Incorporated
Reviewed by: emaste, kib
Approved by: re (ksmith)
MFC after: 10 days
This is another commit in a series of TDMA support fixes for the 11n NICs.
* Move ath_hal_getnexttbtt() into the HAL; write methods for it.
This returns a timer value in TSF, rather than TU.
* Move ath_hal_getcca() and ath_hal_setcca() into the HAL too, where they
likely now belong.
* Create a new HAL capability: HAL_CAP_LONG_RXDESC_TSF.
The pre-11n NICs write 15 bit TSF snapshots into the RX descriptor;
the AR5416 and later write 32 bit TSF snapshots into the RX descriptor.
* Use the new capability to choose between 15 and 31 bit TSF adjustment
functions in ath_extend_tsf().
* Write ar5416GetTsf64() and ar5416SetTsf64() methods.
ar5416GetTsf64() tries to compensate for TSF changes at the 32 bit boundary.
According to yin, this fixes the TDMA beaconing on 11n chipsets and TDMA
stations can now associate/talk, but there are still issues with traffic
stability which need to be investigated.
The ath_hal_extendtsf() function is also used in RX packet timestamping;
this may improve adhoc mode on the 11n chipsets. It also will affect the
timestamps seen in radiotap frames.
Submitted by: Kang Yin Su <cantona@cantona.net>
Approved by: re (kib)
whenever the link state is changed. Using software based polling
for media status tracking is known to cause MII access failure
under certain conditions once link is established so vge(4) used to
rely on link status change interrupt.
However DEVICE_POLLING completely disables generation of all kind
of interrupts on vge(4) such that this resulted in not detecting
link state change event. This means vge(4) does not correctly
detect established/lost link with DEVICE_POLLING. Losing the
interrupt made vge(4) not to send any packets to peer since vge(4)
does not try to send any packets when there is no established link.
Work around the issue by generating link state change interrupt
with DEVICE_POLLING.
PR: kern/160442
Approved by: re (kib)
reference driver does clear the async interrupts after each service.
I'll tinker with this in a future commit.
Obtained from: Atheros
Approved by: re (kib)
