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freebsd-dev/sys
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Colin Percival 1c60b24baa Add a loader tunable "hw.broken_txfifo" which enables a workaround for a 
bug in old versions of QEMU (and Xen, and other places using QEMU code).
On those buggy emulated UARTs, the "TX idle" interrupt gets lost; with
this workaround, we spinwait for the TX to happen and then send ourselves
the interrupt.  It's ugly but it works, while minimizing the impact on
the code for the !broken_txfifo case.

MFC after:	2 weeks
2013-01-27 23:33:42 +00:00
..
amd64 Always allow access to the sysenter cs/esp/eip MSRs since they 2013-01-25 21:38:31 +00:00
arm Fix off-by-one errors in low-level arm9 and arm10 cache maintenance routines. 2013-01-27 20:28:14 +00:00
boot Add support for the GlobalScale Technologies DreamPlug computer. 2013-01-27 01:17:37 +00:00
bsm Merge OpenBSM 1.2-alpha2 changes from contrib/openbsm to 2012-12-01 13:46:37 +00:00
cam Sanitize the element descriptor string before using it as a device name. 2013-01-24 17:28:39 +00:00
cddl spa_generate_rootconf: add support for old vdev labels 2013-01-26 10:34:17 +00:00
compat Arithmetic on pointers takes into account the size of the type. Properly cast the pointer to avoid incorrect pointer scaling. 2013-01-25 14:40:54 +00:00
conf Don't build the kernel with Thumb interworking as we don't support Thumb. 2013-01-23 07:27:38 +00:00
contrib Fix another build breakage for ia64. 2013-01-21 21:26:42 +00:00
crypto Revert previous commit... 2012-10-10 08:36:38 +00:00
ddb Small textdump enhancements. 2012-11-01 04:07:08 +00:00
dev Add a loader tunable "hw.broken_txfifo" which enables a workaround for a 2013-01-27 23:33:42 +00:00
fs Be conservative and do not try to consume more bytes than was 2013-01-27 09:34:25 +00:00
gdb
geom g_mirror: g_getattr() failure should not be fatal 2013-01-26 10:50:04 +00:00
gnu/fs r16312 is not any longer real since many years (likely since when VFS 2012-11-19 22:43:45 +00:00
i386 Don't assume that all Linux TCP-level socket options are identical to 2013-01-23 21:44:48 +00:00
ia64 Remove firewire devices missed in r244992. 2013-01-04 15:29:50 +00:00
isa
kern - Move large functions m_getjcl() and m_get2() to kern/uipc_mbuf.c 2013-01-24 09:29:41 +00:00
kgssapi Piete.Brooks at cl.cam.ac.uk reported via email a crash which was 2012-12-18 00:25:48 +00:00
libkern Add __aeabi_ulcmp to allow building of the LINT kernel. 2013-01-23 09:18:18 +00:00
mips Clean some 'svn:executable' properties in the tree. 2013-01-26 22:08:21 +00:00
modules Clean some 'svn:executable' properties in the tree. 2013-01-26 22:08:21 +00:00
net Move lle_event to if_llatbl.h 2013-01-25 23:58:21 +00:00
net80211 Initial cut at making IBSS support 802.11n aware. 2013-01-26 00:37:54 +00:00
netatalk Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netgraph Use DEVMETHOD_END, as suggested by hselasky@. 2012-12-26 19:14:21 +00:00
netinet Add checks for SO_NO_OFFLOAD in a couple of places that I missed earlier 2013-01-26 01:41:42 +00:00
netinet6 Generate lle_event in the IPv6 neighbor discovery code too. 2013-01-26 00:05:22 +00:00
netipsec Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netipx Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netnatm Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netncp Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netpfil In netpfil/pf: 2012-12-28 09:19:49 +00:00
netsmb Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
nfs Remove the unused nfs_curusec(). 2013-01-17 19:03:24 +00:00
nfsclient Further cleanups to use of timestamps in NFS: 2013-01-25 15:25:24 +00:00
nfsserver Use vfs_timestamp() to set file timestamps rather than invoking 2013-01-18 18:43:38 +00:00
nlm Remove the support for using non-mpsafe filesystem modules. 2012-10-22 17:50:54 +00:00
ofed Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
opencrypto Revert previous commit... 2012-10-10 08:36:38 +00:00
pc98 MFi386: Make similar changes that were made to atkbdc in r245315. 2013-01-11 23:42:24 +00:00
pci Add D-Link DFE-520TX rev C1. 2013-01-16 01:30:46 +00:00
powerpc Enable the UFS quotas for big-iron GENERIC kernels. 2013-01-03 19:03:41 +00:00
rpc Add support for backchannels to the kernel RPC. Backchannels 2012-12-08 00:29:16 +00:00
security Implement the zonename token for jailed processes. If 2013-01-17 21:02:53 +00:00
sparc64 Revert the part of r239864 which removed obtaining the SMP mutex around 2013-01-23 22:52:20 +00:00
sys In mbuf(9) API length is always integer. Thus, cast mbuf length 2013-01-25 11:52:56 +00:00
teken
tools Fix build on ARM (and probably other platforms) 2012-12-28 06:52:53 +00:00
ufs Add flags argument to vfs_write_resume() and remove 2013-01-11 06:08:32 +00:00
vm - Get rid of unused function vmspace_wired_count(). 2013-01-14 12:12:56 +00:00
x86 Don't attempt to use clflush on the local APIC register window. Various 2013-01-17 21:32:25 +00:00
xdr
xen Move the corresponding MTX_SYSINIT() next to their struct mtx declaration 2012-10-26 17:31:35 +00:00
Makefile Run cscope with the -v parameter to make it more user-friendly. 2012-12-02 20:51:24 +00:00