- Depessimize userret() in kernels where KTRACE is enabled by doing an
unlocked check of the per-process queue of pending events before
acquiring any locks. Previously ktr_userret() unconditionally acquired
the global ktrace_sx lock on every return to userland for every thread,
even if ktrace wasn't enabled for the thread.
- Optimize the locking in exit() to first perform an unlocked read of
p_traceflag to see if ktrace is enabled and only acquire locks and
teardown ktrace if the test succeeds. Also, explicitly disable tracing
before draining any pending events so the pending events actually get
written out. The unlocked read is safe because proc lock is acquired
earlier after single-threading so p_traceflag can't change between then
and this check (well, it can currently due to a bug in ktrace I will fix
next, but that race existed prior to this change as well).
Reviewed by: rwatson
during execve() when turning off tracing due to executing a setuid binary
as non-root. Previously this could fail to acquire Giant and fail an
assertion if the ktrace file was on a non-MPSAFE filesystem and the
executable was on an MPSAFE filesystem.
MFC after: 3 days
Reported by: kris
bridged, previously legitimate traffic was not passed as the bridge could not
tell that it was on a different Ethernet segment.
All non-tagged traffic is treated as vlan1 as per IEEE 802.1Q-2003
previous commit:
Remove IPX over IP tunneling support, which allows IPX routing over IP
tunnels, and was not MPSAFE. The code can be easily restored in the
event that someone with an IPX over IP tunnel configuration can work
with me to test patches.
This removes one of five remaining consumers of NET_NEEDS_GIANT.
Approved by: re (kensmith)
Spotted by: Artem Naluzhny <tutat nhamon dot com dot ua>
than the 5288.
It is not correctly implemented in earlier silicon, and the BIOS often
lies about AHCI capability on platforms where these chips are deployed.
With this change I am able to boot FreeBSD on the ASUS Vintage AH-1
barebones system.
Approved by: sos
tunnels, and was not MPSAFE. The code can be easily restored in the
event that someone with an IPX over IP tunnel configuration can work
with me to test patches.
This removes one of five remaining consumers of NET_NEEDS_GIANT.
Approved by: re (kensmith)
timing loops being optimized away.
Once apon a time, gcc promised not to optimize away timing loops, but
gcc started optimizing away the call to a null function in the timing
loop here some time between gcc-3.3.3 and gcc-3.4.6, and it started
optimizing away the timing loop itself some time between gcc-3.4.6
and gcc-4.2.
- update to firmware version 4.1.0
- switch over to standard method for initializing cdevs (contributed by scottl@)
- break out timer_reclaim_task to be per-port
- move msix teardown into separate function
- fix bus_setup_intr for msi-x for the multi-port case so that msi-x resources
are not corrupted on unload
- handle 10/100/1000 base-T media and auto negotiation
- bind qset to cpu even for singleq case
- white space cleanups
- remove recursive PORT_LOCK
- move mtu setting to separate function
- stop and re-init port when changing mtu
- replace all direct references to m_data with calls to mtod
- handle attach failure better by not trying to de-initialize
taskqueues when they have not been allocated
- no longer default to jumbo frames
Sponsored by: Chelsio
MFC after: 3 days
- Add and document the KVM and KVM_SUPPORT options that
are needed for the ifmcstats(3) makefile
- Garbage collect unused variables
- Add missing inclusion of bsd.own.mk where needed
Approved by: kan (mentor)
Reviewed by: ru
its an INIT collision case.
- Fixed RTO calc to maintain a seperate variable to track
if a RTO calc as been done, this allows the RTO var to be
doubled during initial timeouts.
- Reduces the amount of stack used by process control.
- Use a constant for the peer chunk overhead.
- Name change to spell candidate correctly.
- Remove unused kse fields from struct proc.
- Group remaining fields and #ifdef KSE them.
- Move some kern_kse.c only prototypes out of proc and into kern_kse.
Discussed with: Julian
