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	Automatically disable x2APIC mode on SandyBridge Lenovo machines. I	2015-08-21 15:13:25 +00:00
bios	Add missing header needed by free(9).	2012-09-30 15:42:20 +00:00
cpufreq	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
include	Add stack_save_td_running(), a function to trace the kernel stack of a	2015-09-11 03:54:37 +00:00
iommu	Comment only change, fix grammar and somewhat clarify the action.	2015-08-14 13:51:59 +00:00
isa	Set the initial system time to a sane (as in: not end of 21st century) value when	2015-06-29 17:02:09 +00:00
pci	Reassign copyright statements on several files from Advanced	2015-04-23 14:22:20 +00:00
x86	Add stack_save_td_running(), a function to trace the kernel stack of a	2015-09-11 03:54:37 +00:00
xen	xen: allow disabling PV disks and nics	2015-08-21 15:53:08 +00:00