Jose Abreu 57e4f87ebe 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-09-27 14:39:23 +02:00
..
.gitignore	ARC: Add some .gitignore entries	2013-08-26 09:40:24 +05:30
arc_hostlink.c
arcksyms.c	ARC: export __udivdi3 for modules	2016-08-19 14:09:33 -07:00
asm-offsets.c	ARCv2: [vdk] dts files and defconfig for HS38 VDK	2015-06-25 06:00:21 +05:30
ctx_sw.c	ARC: [plat-eznps] Use dedicated identity auxiliary register.	2016-05-09 09:32:33 +05:30
ctx_sw_asm.S	ARC: dw2 unwind: enable cfi pseudo ops in string lib	2016-09-30 14:48:22 -07:00
devtree.c	ARC: [plat-eznps] set default baud for early console	2016-11-08 09:39:37 -08:00
disasm.c	ARC: rename kconfig option for unaligned emulation	2014-10-13 14:46:15 +05:30
entry-arcv2.S	ARCv2: Enable LOCKDEP	2016-04-22 18:12:31 +05:30
entry-compact.S	ARC: [intc-compact] simplify code for 2 priority levels	2016-05-30 22:45:04 +05:30
entry.S	ARC: Re-enable MMU upon Machine Check exception	2017-09-27 14:39:23 +02:00
fpu.c
head.S	ARC: smp-boot: Decouple Non masters waiting API from jump to entry point	2017-06-17 06:41:57 +02:00
intc-arcv2.c	ARCv2: intc: Use kflag if STATUS32.IE must be reset	2016-09-30 14:48:24 -07:00
intc-compact.c	ARC: [intc-compact] simplify code for 2 priority levels	2016-05-30 22:45:04 +05:30
irq.c	ARC: [intc-*] Do a domain lookup in primary handler for hwirq -> linux virq	2016-05-09 09:32:30 +05:30
kgdb.c	ARC: kgdb: generic kgdb_arch_pc() suffices	2014-10-22 16:14:04 -06:00
kprobes.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2013-11-15 16:47:22 -08:00
Makefile	ARC: RIP arc_{get|set}_core_freq() clk API	2016-05-09 09:32:31 +05:30
mcip.c	ARCv2: IRQ: Call entry/exit functions for chained handlers in MCIP	2017-08-06 18:59:49 -07:00
module.c	ARC: module: Fix !CONFIG_ARC_DW2_UNWIND builds	2017-01-26 08:24:37 +01:00
pcibios.c	ARC: Add PCI support	2016-03-10 14:44:13 -06:00
perf_event.c	arc: perf: Enable generic "cache-references" and "cache-misses" events	2016-09-30 14:48:18 -07:00
process.c	ARC: change return value of userspace cmpxchg assist syscall	2016-11-07 11:01:12 -08:00
ptrace.c	ARCv2: Support for ARCv2 ISA and HS38x cores	2015-06-22 14:06:55 +05:30
reset.c	arc: export symbol for pm_power_off in reset.c	2013-11-06 10:41:44 +05:30
setup.c	ARC: boot log: refactor cpu name/release printing	2016-10-28 10:09:07 -07:00
signal.c	arc: don't leak bits of kernel stack into coredump	2016-09-15 19:51:55 -04:00
smp.c	ARCv2: smp-boot: wake_flag polling by non-Masters needs to be uncached	2017-06-17 06:41:57 +02:00
stacktrace.c	arc: unwind: warn only once if DW2_UNWIND is disabled	2016-06-28 11:11:44 +05:30
sys.c	ARC: ABIv3: fork/vfork wrappers not needed in "no-legacy-syscall" ABI	2013-03-11 19:01:10 +05:30
time.c	ARC: timer: rtc: implement read loop in "C" vs. inline asm	2016-11-07 11:19:44 -08:00
traps.c	ARC: rename unhandled exception handler	2015-04-13 15:14:57 +05:30
troubleshoot.c	ARC: mm: retire ARC_DBG_TLB_MISS_COUNT...	2016-10-28 10:10:28 -07:00
unaligned.c	ARC: [arcompact] brown paper bag bug in unaligned access delay slot fixup	2017-02-14 15:25:33 -08:00
unwind.c	ARC: dw2 unwind: switch to .eh_frame based unwinding	2016-09-30 14:48:20 -07:00
vmlinux.lds.S	nmi_backtrace: generate one-line reports for idle cpus	2016-10-07 18:46:30 -07:00