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From: Peter Zijlstra <peterz@infradead.org>
To: keescook@chromium.org, x86@kernel.org
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org,
	juri.lelli@redhat.com, vincent.guittot@linaro.org,
	dietmar.eggemann@arm.com, rostedt@goodmis.org,
	bsegall@google.com, mgorman@suse.de, bristot@redhat.com,
	akpm@linux-foundation.org, mark.rutland@arm.com,
	zhengqi.arch@bytedance.com, linux@armlinux.org.uk,
	catalin.marinas@arm.com, will@kernel.org, mpe@ellerman.id.au,
	paul.walmsley@sifive.com, palmer@dabbelt.com, hca@linux.ibm.com,
	gor@linux.ibm.com, borntraeger@de.ibm.com,
	linux-arch@vger.kernel.org, ardb@kernel.org
Subject: [PATCH 0/7] arch: More wchan fixes
Date: Fri, 22 Oct 2021 17:09:33 +0200	[thread overview]
Message-ID: <20211022150933.883959987@infradead.org> (raw)

Hi,

Respin of the rest of the get_wchan() rework [1]. Given the many problems with
STACKTRACE this series focuses on the newer ARCH_STACKWALK since that's a
smaller set of architectures to review with a better specified interface.

The idea is to piece-wise convert the rest of the architectures to
ARCH_STACKWALK, but that can be done at leasure.

PowerPC and ARM64 are a bit funny in that their __switch_to() is in C and ends
up on the stack. For now simply mark it __sched to make it work. Mark wanted to
maybe do something different, but I think this ought to get us started.



             reply	other threads:[~2021-10-22 15:24 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-22 15:09 Peter Zijlstra [this message]
2021-10-22 15:09 ` [PATCH 1/7] x86: Fix __get_wchan() for !STACKTRACE Peter Zijlstra
2021-10-22 16:25   ` Kees Cook
2021-10-26 19:16   ` [tip: sched/core] " tip-bot2 for Peter Zijlstra
2021-10-22 15:09 ` [PATCH 2/7] stacktrace,sched: Make stack_trace_save_tsk() more robust Peter Zijlstra
2021-10-22 16:25   ` Kees Cook
2021-10-22 16:45     ` Peter Zijlstra
2021-10-22 16:57       ` Mark Rutland
2021-10-22 16:54     ` Mark Rutland
2021-10-22 17:01       ` Peter Zijlstra
2021-10-25 20:38         ` Peter Zijlstra
2021-10-25 20:52           ` Kees Cook
2021-10-26  9:33           ` Mark Rutland
2021-10-25 16:27   ` Peter Zijlstra
2021-10-22 15:09 ` [PATCH 3/7] ARM: implement ARCH_STACKWALK Peter Zijlstra
2021-10-22 16:18   ` Kees Cook
2021-10-22 15:09 ` [PATCH 4/7] arch: Make ARCH_STACKWALK independent of STACKTRACE Peter Zijlstra
2021-10-22 16:18   ` Kees Cook
2021-10-22 16:36     ` Peter Zijlstra
2021-10-22 17:06   ` Mark Rutland
2021-10-22 15:09 ` [PATCH 5/7] powerpc, arm64: Mark __switch_to() as __sched Peter Zijlstra
2021-10-22 16:15   ` Kees Cook
2021-10-22 17:40   ` Mark Rutland
2021-10-22 15:09 ` [PATCH 6/7] arch: __get_wchan() || ARCH_STACKWALK Peter Zijlstra
2021-10-22 16:13   ` Kees Cook
2021-10-22 17:52   ` Mark Rutland
2021-10-22 15:09 ` [PATCH 7/7] selftests: proc: Make sure wchan works when it exists Peter Zijlstra
2021-10-22 15:27 ` [PATCH 0/7] arch: More wchan fixes Peter Zijlstra

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