From: Peter Zijlstra <peterz@infradead.org>
To: keescook@chromium.org, x86@kernel.org
Cc: linux-kernel@vger.kernel.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,
Josh Poimboeuf <jpoimboe@redhat.com>
Subject: Re: [PATCH 0/7] arch: More wchan fixes
Date: Fri, 22 Oct 2021 17:27:38 +0200 [thread overview]
Message-ID: <20211022152738.GC174703@worktop.programming.kicks-ass.net> (raw)
In-Reply-To: <20211022150933.883959987@infradead.org>
*sigh*,...
On Fri, Oct 22, 2021 at 05:09:33PM +0200, Peter Zijlstra wrote:
> 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.
[1] https://lkml.kernel.org/r/20211008111527.438276127@infradead.org
Patches are also available at:
git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/wchan
prev parent reply other threads:[~2021-10-22 15:28 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-22 15:09 [PATCH 0/7] arch: More wchan fixes Peter Zijlstra
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 ` Peter Zijlstra [this message]
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