markj e8967c8bd9 Add stack_save_td_running(), a function to trace the kernel stack of a ... running thread. It is currently implemented only on amd64 and i386; on these architectures, it is implemented by raising an NMI on the CPU on which the target thread is currently running. Unlike stack_save_td(), it may fail, for example if the thread is running in user mode. This change also modifies the kern.proc.kstack sysctl to use this function, so that stacks of running threads are shown in the output of "procstat -kk". This is handy for debugging threads that are stuck in a busy loop. Reviewed by: bdrewery, jhb, kib Sponsored by: EMC / Isilon Storage Division Differential Revision: https://reviews.freebsd.org/D3256		2015-09-11 03:54:37 +00:00
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acpica	If x86 CPU implementation of the MWAIT instruction reasonably	2015-05-09 12:28:48 +00:00
bios	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
conf	Add pmspvc device back to GENERIC. The issues with the device playing	2015-08-03 13:49:46 +00:00
i386	Add stack_save_td_running(), a function to trace the kernel stack of a	2015-09-11 03:54:37 +00:00
ibcs2	Replace struct filedesc argument in getvnode with struct thread	2015-06-16 13:09:18 +00:00
include	Merge stack(9) implementations for i386 and amd64 under x86/.	2015-09-11 03:24:07 +00:00
isa	Convert between abridged (from FXSAVE) and unabridged (from FSAVE)	2015-07-10 09:20:13 +00:00
linux	Implement lockless resource limits.	2015-06-10 10:48:12 +00:00
pci	Remove support for Xen PV domU kernels. Support for HVM domU kernels	2015-04-30 15:48:48 +00:00
svr4	MFamd64: Move extern declaration of _ucodesel and _udatasel to	2014-11-02 21:40:32 +00:00
xbox	After r261980, the local ptr variable in xbox_init() is no longer used,	2014-02-16 22:48:36 +00:00
Makefile	Delete duplicate tags entry I introduced in -r223901.	2011-07-15 17:27:26 +00:00