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Jose Abreu bc51612700 ARC: Re-enable MMU upon Machine Check exception ... commit 1ee55a8f7f upstream. I recently came upon a scenario where I would get a double fault machine check exception tiriggered by a kernel module. However the ensuing crash stacktrace (ksym lookup) was not working correctly. Turns out that machine check auto-disables MMU while modules are allocated in kernel vaddr spapce. This patch re-enables the MMU before start printing the stacktrace making stacktracing of modules work upon a fatal exception. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> [vgupta: moved code into low level handler to avoid in 2 places] Signed-off-by: Ben Hutchings <ben@decadent.org.uk>		History 2017-11-26 13:50:29 +00:00
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boot	ARC: [nsimosci] move peripherals to match model to FPGA	2015-01-15 10:44:08 +00:00
configs	ARC: [nsimosci] Unbork console	2014-04-05 18:36:51 +05:30
include	ARC: uaccess: get_user to zero out dest in cause of fault	2016-11-20 01:17:27 +00:00
kernel	ARC: Re-enable MMU upon Machine Check exception	2017-11-26 13:50:29 +00:00
lib	ARC: switch to generic ENTRY/END assembler annotations	2014-03-26 14:31:28 +05:30
mm	ARC: Re-enable MMU upon Machine Check exception	2017-11-26 13:50:29 +00:00
oprofile	ARC: OProfile support	2013-02-15 23:16:00 +05:30
plat-arcfpga	ARC: [arcfpga] Early ARC UART to be only activated by cmdline	2014-06-03 14:20:09 +05:30
plat-tb10x	ARC: [TB10x] Updates for GPIO and pinctrl	2013-11-11 09:57:44 +05:30
Kbuild	ARC: Build system: Makefiles, Kconfig, Linker script	2013-02-11 20:00:25 +05:30
Kconfig	Kconfig: rename HAS_IOPORT to HAS_IOPORT_MAP	2014-04-07 16:36:11 -07:00
Kconfig.debug	consolidate per-arch stack overflow debugging options	2013-07-04 11:25:39 -07:00
Makefile	ARC: unwind: ensure that .debug_frame is generated (vs. .eh_frame)	2016-08-22 22:38:22 +01:00