Ravi Bangoria d9e36c56c0 perf/amd/ibs: Use interrupt regs ip for stack unwinding ... [ Upstream commit 3d47083b9ff46863e8374ad3bb5edb5e464c75f8 ] IbsOpRip is recorded when IBS interrupt is triggered. But there is a skid from the time IBS interrupt gets triggered to the time the interrupt is presented to the core. Meanwhile processor would have moved ahead and thus IbsOpRip will be inconsistent with rsp and rbp recorded as part of the interrupt regs. This causes issues while unwinding stack using the ORC unwinder as it needs consistent rip, rsp and rbp. Fix this by using rip from interrupt regs instead of IbsOpRip for stack unwinding. Fixes: ee9f8fce99 ("x86/unwind: Add the ORC unwinder") Reported-by: Dmitry Monakhov <dmtrmonakhov@yandex-team.ru> Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Ravi Bangoria <ravi.bangoria@amd.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20220429051441.14251-1-ravi.bangoria@amd.com Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-06-14 16:59:22 +02:00
..
core.c	perf/x86/amd: Add missing L2 misses event spec to AMD Family 17h's event map	2020-02-19 19:51:57 +01:00
ibs.c	perf/amd/ibs: Use interrupt regs ip for stack unwinding	2022-06-14 16:59:22 +02:00
iommu.c	x86/events/amd/iommu: Fix sysfs type mismatch	2021-05-22 10:59:34 +02:00
iommu.h
Makefile
power.c
uncore.c	perf/amd/uncore: Replace manual sampling check with CAP_NO_INTERRUPT flag	2020-03-20 11:55:50 +01:00