Scott Long 8611774e5e Extend critical section coverage in the low-level interrupt handlers to ... include the ithread scheduling step. Without this, a preemption might occur in between the interrupt getting masked and the ithread getting scheduled. Since the interrupt handler runs in the context of curthread, the scheudler might see it as having a such a low priority on a busy system that it doesn't get to run for a _long_ time, leaving the interrupt stranded in a disabled state. The only way that the preemption can happen is by a fast/filter handler triggering a schduling event earlier in the handler, so this problem can only happen for cases where an interrupt is being shared by both a fast/filter handler and an ithread handler. Unfortunately, it seems to be common for this sharing to happen with network and USB devices, for example. This fixes many of the mysterious TCP session timeouts and NIC watchdogs that were being reported. Many thanks to Sam Lefler for getting to the bottom of this problem. Reviewed by: jhb, jeff, silby		2007-11-21 04:03:51 +00:00
..
amd64	Extend critical section coverage in the low-level interrupt handlers to	2007-11-21 04:03:51 +00:00
arm	Prevent the leakage of wired pages in the following circumstances:	2007-11-17 22:52:29 +00:00
boot	MFi386: revision 1.18	2007-11-18 03:14:06 +00:00
bsm	Merge OpenBSM 1.0 changes to src/sys/bsm:	2007-10-29 18:47:25 +00:00
cam	Fix a change in the previous commit that was actually a type-o.	2007-11-15 16:23:38 +00:00
cddl	Warn if kmem_map size is set to less than 512MB. Previous warning was a bit	2007-11-07 14:44:31 +00:00
compat	Implement LINUX_SIOCGIFCOUNT and LINUX_SIOCGIFINDEX/LINUX_SIOGIFINDEX.	2007-11-07 16:42:52 +00:00
conf	Re-enable -Werror for modules.	2007-11-19 16:24:10 +00:00
contrib	Warn if kmem_map size is set to less than 512MB. Previous warning was a bit	2007-11-07 14:44:31 +00:00
crypto
ddb	Make the examine command honor db_pager_quit so you can use 'q' or 'x'	2007-10-27 20:19:11 +00:00
dev	Add MSI support for 88E8058(Yukon EC Ultra). Unlike other Yukon II	2007-11-21 00:42:42 +00:00
fs	o English lesson from bde@: "iff" is not a typo, it means "if and only if".	2007-11-18 09:21:30 +00:00
gdb
geom	On some arches, openssl is built with OPENSSL_NO_CAMELLIA, so the	2007-11-19 08:59:32 +00:00
gnu	Remove duplicate "union" from ext2_opts.	2007-10-27 16:14:33 +00:00
i4b	Spelling fix for interupt -> interrupt	2007-10-12 06:03:46 +00:00
i386	Extend critical section coverage in the low-level interrupt handlers to	2007-11-21 04:03:51 +00:00
ia64	Extend critical section coverage in the low-level interrupt handlers to	2007-11-21 04:03:51 +00:00
isa	Split /dev/nvram driver out of isa/clock.c for i386 and amd64. I have not	2007-10-26 03:23:54 +00:00
kern	Test that p_textvp is non-NULL be dereferencing, as no executable vnode is	2007-11-20 18:03:09 +00:00
libkern	Do not use __XSCALE__ to detect if clz is available, use _ARM_ARCH_5 instead.	2007-10-13 12:05:36 +00:00
modules	Move the agp(4) driver from sys/pci to sys/dev/agp. __FreeBSD_version was	2007-11-12 21:51:38 +00:00
net	1) dummynet_io() declaration has changed.	2007-11-06 23:01:42 +00:00
net80211	correct MIMO power save action frame format;	2007-11-14 21:28:48 +00:00
netatalk	Annotate two possible bugs in a comment: (1) we allocate and explicitly	2007-11-20 18:50:54 +00:00
netatm
netgraph	- Merge all the ng_send_fn2* functions into one - ng_send_fn2(),	2007-11-14 11:25:58 +00:00
netinet	Comment out the syncache's test which ensures that hosts which negotiate TCP	2007-11-20 06:56:04 +00:00
netinet6	Move towards more explicit support for various network protocol stacks	2007-10-28 15:55:23 +00:00
netipsec	Move the priv check before the malloc call for so_pcb.	2007-11-16 22:35:33 +00:00
netipx
netnatm
netncp
netsmb	Rename the kthread_xxx (e.g. kthread_create()) calls	2007-10-20 23:23:23 +00:00
nfs
nfs4client	Rename the kthread_xxx (e.g. kthread_create()) calls	2007-10-20 23:23:23 +00:00
nfsclient	Remove hacks from the NFSv2/3 client intended to handle a lack of a	2007-11-19 16:03:21 +00:00
nfsserver	Garbage collect now-unused nfsrv_setcred() -- it's not only unused, but	2007-11-04 19:20:33 +00:00
opencrypto	Rename the kthread_xxx (e.g. kthread_create()) calls	2007-10-20 23:23:23 +00:00
pc98	MFi386: revision 1.661	2007-11-14 12:29:09 +00:00
pccard
pci	Move the agp(4) driver from sys/pci to sys/dev/agp. __FreeBSD_version was	2007-11-12 21:51:38 +00:00
powerpc	Extend critical section coverage in the low-level interrupt handlers to	2007-11-21 04:03:51 +00:00
rpc
security	Implement per-object type consistency checks for labels passed to	2007-10-30 00:01:28 +00:00
sparc64	Extend critical section coverage in the low-level interrupt handlers to	2007-11-21 04:03:51 +00:00
sun4v	__builtin_stdarg_start was renamed to __builtin_va_start a long	2007-11-19 07:34:57 +00:00
sys	Add the function callout_init_rw() to callout facility in order to use	2007-11-20 00:37:45 +00:00
tools
ufs	Fix build without INVARIANTS and update a comment to match	2007-11-09 11:04:36 +00:00
vm	Prevent the leakage of wired pages in the following circumstances:	2007-11-17 22:52:29 +00:00
Makefile