Mark Johnston 1c29da0279 Reimplement stack capture of running threads on i386 and amd64. ... After r355784 the td_oncpu field is no longer synchronized by the thread lock, so the stack capture interrupt cannot be delievered precisely. Fix this using a loop which drops the thread lock and restarts if the wrong thread was sampled from the stack capture interrupt handler. Change the implementation to use a regular interrupt instead of an NMI. Now that we drop the thread lock, there is no advantage to the latter. Simplify the KPIs. Remove stack_save_td_running() and add a return value to stack_save_td(). On platforms that do not support stack capture of running threads, stack_save_td() returns EOPNOTSUPP. If the target thread is running in user mode, stack_save_td() returns EBUSY. Reviewed by: kib Reported by: mjg, pho Tested by: pho Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D23355		2020-01-31 15:43:33 +00:00
..
atheros	[ar71xx] generate a random mac address using eth_gen_addr()	2019-12-28 06:56:21 +00:00
beri	Move phys_avail definition into MI code. It is consumed in the MI layer and	2019-08-16 00:45:14 +00:00
broadcom	Move phys_avail definition into MI code. It is consumed in the MI layer and	2019-08-16 00:45:14 +00:00
cavium	Regularize my copyright notice	2019-12-04 16:56:11 +00:00
conf	[atheros] [mips] Add the GPIO driver (back) to the TL-WDR3600/TL-WDR4300 kernel.	2019-12-17 00:00:03 +00:00
include	[PowerPC] [MIPS] Implement 32-bit kernel emulation of atomic64 operations	2020-01-02 23:20:37 +00:00
ingenic	Remove "all rights reserved" from copyright for the file that Jared McNeill	2019-12-03 21:05:33 +00:00
malta	Move phys_avail definition into MI code. It is consumed in the MI layer and	2019-08-16 00:45:14 +00:00
mediatek	Move phys_avail definition into MI code. It is consumed in the MI layer and	2019-08-16 00:45:14 +00:00
mips	Reimplement stack capture of running threads on i386 and amd64.	2020-01-31 15:43:33 +00:00
nlm	Introduce flag IFF_NEEDSEPOCH that marks Ethernet interfaces that	2020-01-23 01:41:09 +00:00