freebsd-dev/sys
Maksim Yevmenkin cd1fb2e095 Before it gets lost in the noise.
Put a bandaid to prevent ixgbe(4) from completely locking up the system
under high load. Our platform has a few CPU cores and a single active
ixgbe(4) port with 4 queues. Under high enough traffic load, at about
7.5GBs and 700,000 packets/sec (outbound), the entire system would
deadlock. What we found was that each CPU was in an endless loop on a
different ix taskqueue thread. The OACTIVE flag had gotten set on each
queue, and the ixgbe_handle_queue() function was continuously rescheduling
itself via the taskqueue_enqueue. Since all CPUs were busy with their
taskqueue threads, the ixgbe_local_timer() function couldn't run to clear
the OACTIVE flag.

Submitted by:	scottl
MFC after:	1 week
2012-06-05 18:48:02 +00:00
..
amd64 Various small changes to PV entry management: 2012-06-04 03:51:08 +00:00
arm Remove dead code. 2012-06-05 14:19:59 +00:00
boot The loaddev environment variable is not modifiable once set, so it is not 2012-06-04 20:56:40 +00:00
bsm
cam Tune and add some more CAM_DEBUG() points for the probe sequences. 2012-06-05 11:48:32 +00:00
cddl Integrate a fix for a very odd signal delivery problem found 2012-06-04 16:15:40 +00:00
compat Make sure that each va_start has one and only one matching va_end, 2012-05-29 01:48:06 +00:00
conf Eliminate the now-unused AT91C_MASTER_CLOCK option and change the one 2012-06-04 04:24:59 +00:00
contrib Correct table counter functionality to not panic. 2012-05-31 20:10:05 +00:00
crypto Add support for the extended FPU states on amd64, both for native 2012-01-21 17:45:27 +00:00
ddb Update the ddb and gdb backends for the new 'trace_thread' hook. 2012-04-12 21:34:58 +00:00
dev Before it gets lost in the noise. 2012-06-05 18:48:02 +00:00
fs Capitalize start of sentence. 2012-05-30 14:00:23 +00:00
gdb Update the ddb and gdb backends for the new 'trace_thread' hook. 2012-04-12 21:34:58 +00:00
geom Add missing newlines into XML output. 2012-06-05 16:46:34 +00:00
gnu/fs Fix build: 2012-05-23 06:49:50 +00:00
i386 Various small changes to PV entry management: 2012-06-04 03:51:08 +00:00
ia64 Improve style(9) in the previous commit. 2012-06-01 17:07:52 +00:00
isa
kern style(9) for r236563. 2012-06-05 05:16:04 +00:00
kgssapi
libkern Use strcmp that I replaced by accident. 2012-05-21 02:45:47 +00:00
mips MFp4 bz_ipv6_fast: 2012-05-24 22:00:48 +00:00
modules Only build filemon(4) on x86. 2012-06-05 17:44:54 +00:00
net Fix panic introduced by r235745. Panic occurs after first packet traverse renamed interface. 2012-06-04 12:36:58 +00:00
net80211 Fix some corner cases in the ieee80211_send_bar() handling. 2012-05-22 19:37:12 +00:00
netatalk Fix typos 2012-02-28 15:07:05 +00:00
netgraph Revert my local not yet properly tested changes, that leaked in 2012-05-25 07:46:24 +00:00
netinet Fix style nit: don't use leading zero for dates in .Dd 2012-06-05 03:14:39 +00:00
netinet6 Plug two interface address refcount leaks in early error return cases 2012-06-05 13:27:37 +00:00
netipsec Add multi-FIB IPv6 support to the core network stack supplementing 2012-02-03 13:08:44 +00:00
netipx Convert all users of IF_ADDR_LOCK to use new locking macros that specify 2012-01-05 19:00:36 +00:00
netnatm
netncp Add characters mapping for codepages used in Germany. 2012-06-01 03:59:08 +00:00
netsmb
nfs Add multi-FIB IPv6 support to the core network stack supplementing 2012-02-03 13:08:44 +00:00
nfsclient PR# 165923 reported intermittent write failures for dirty 2012-05-12 12:02:51 +00:00
nfsserver
nlm jwd@ reported a problem via email to freebsd-fs@ on Aug 25, 2011 2012-01-31 02:11:05 +00:00
ofed Revert r234834 per luigi@ request. 2012-05-03 08:56:43 +00:00
opencrypto
pc98 MFprojects/zfsd: 2012-05-24 11:20:51 +00:00
pci intpm: add ATI IXP400 pci id 2012-04-16 10:33:46 +00:00
powerpc Panic openly if we cannot retrieve memory information from the device tree. 2012-05-30 18:05:48 +00:00
rpc
security Check vplabel for NULL before dereferencing it. Fixes a panic 2012-05-03 15:51:34 +00:00
sparc64 Replace all uses of the vm page queues lock by a r/w lock that is private 2012-05-29 01:52:38 +00:00
sys Fix typo [1]. Use commas to separate flag printouts, in style with 2012-06-02 19:39:12 +00:00
teken
tools Make vnode_if.awk parse vnode operations with underscores, like VOP_FOO_BAR. 2012-02-21 19:35:59 +00:00
ufs Enable vn_io_fault() lock avoidance for UFS. 2012-05-30 16:45:41 +00:00
vm Revert r236380 2012-06-01 18:58:50 +00:00
x86 free wdog_kern_pat calls in post-panic paths from under SW_WATCHDOG 2012-06-03 08:01:12 +00:00
xdr
xen blkif interface comment cleanups. No functional changes 2012-02-29 17:47:01 +00:00
Makefile Add sys/ofed to the 'make cscope' target. 2012-03-20 18:05:15 +00:00