the ABI when enabled. There is no longer an embedded lock_profile_object
in each lock. Instead a list of lock_profile_objects is kept per-thread
for each lock it may own. The cnt_hold statistic is now always 0 to
facilitate this.
- Support shared locking by tracking individual lock instances and
statistics in the per-thread per-instance lock_profile_object.
- Make the lock profiling hash table a per-cpu singly linked list with a
per-cpu static lock_prof allocator. This removes the need for an array
of spinlocks and reduces cache contention between cores.
- Use a seperate hash for spinlocks and other locks so that only a
critical_enter() is required and not a spinlock_enter() to modify the
per-cpu tables.
- Count time spent spinning in the lock statistics.
- Remove the LOCK_PROFILE_SHARED option as it is always supported now.
- Specifically drop and release the scheduler locks in both schedulers
since we track owners now.
In collaboration with: Kip Macy
Sponsored by: Nokia
cards:
o RocketRAID 172x series
o RocketRAID 174x series
o RocketRAID 2210
o RocketRAID 222x series
o RocketRAID 2240
o RocketRAID 230x series
o RocketRAID 231x series
o RocketRAID 232x series
o RocketRAID 2340
o RocketRAID 2522
Many thanks to Highpoint for their continued support of FreeBSD.
Submitted by: Highpoint
it's multi DAC / playback channels is not that good. Enabling vchans
make the bug more visible since playback allocation will look for
possible free hardware channels first (i.e: the next DAC, the very first
has been consumed by vchan mixer) which in this case has been proven faulty.
Tested by: Dominic Fandrey <LoN_Kamikaze at gmx dot de>
URL: http://lists.freebsd.org/pipermail/freebsd-stable/2007-December/039022.html
The HT1000 DMA engine seems to not always like 64K transfers and sometimes barfs data all over memory leading to instant chrash and burn.
Also fix 48bit adressing issues, apparently newer chips needs 16bit writes and not the usual fifo thing.
HW donated by: Travis Mikalson at TerraNovaNet
- make neccessary changes to release offload resources when a syncache
entry is removed before connection establishment
- disable checks for offloaded connection where insufficient information
is available
Reviewed by: silby
register (MacBooks only).
This allows MacBooks to boot in SMP mode without any trick and solves
the timer problems with HZ=1000.
MFC after: 1 week
Reviewed by: njl (mentor), jhb
Approved by: njl (mentor), jhb
Previous value 16 was too small for real LAC as temporal activity
spike cound easily overflow queue demanding tunnel disconnection due
to possible state inconsistency.
that favours true hardware channel, the first instance of recording
request will grab this channel (the first channel is being used as
vchan master). In many cases, it is not really work as intended and give
false impression of broken recording.
PR: kern/118546
MFC after: 3 days
7.2.3, bytes 0-3 and 5-15 are used to calculate the checksum of a descriptor
tag.
PR: kern/90521
Submitted by: Björn König <bkoenig@cs.tu-berlin.de>
Reviewed by: scottl
Approved by: emax (mentor)
header, then don't try to pullup anything, because there is no next
header if we hit IPPROTO_NONE. Set ulp to a non-NULL value so the
search for an upper layer header terinates.
This is based on Pekka's diagnosis, but I chose a simpler fix.
PR: 115261
Submitted by: Pekka Savola <pekkas@netcore.fi>
Reviewed by: mlaier
MFC after: 2 weeks
