From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: Peter Zijlstra <peterz@infradead.org>
Cc: keescook@chromium.org, jannh@google.com,
linux-kernel@vger.kernel.org, vcaputo@pengaru.com,
mingo@redhat.com, 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,
christian.brauner@ubuntu.com, amistry@google.com,
Kenta.Tada@sony.com, legion@kernel.org,
michael.weiss@aisec.fraunhofer.de, mhocko@suse.com,
deller@gmx.de, zhengqi.arch@bytedance.com, me@tobin.cc,
tycho@tycho.pizza, tglx@linutronix.de, bp@alien8.de,
hpa@zytor.com, mark.rutland@arm.com, axboe@kernel.dk,
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tsbogend@alpha.franken.de, nickhu@andestech.com,
jonas@southpole.se, mpe@ellerman.id.au, paul.walmsley@sifive.com,
hca@linux.ibm.com, ysato@users.sourceforge.jp,
davem@davemloft.net, chris@zankel.net
Subject: Re: [PATCH 5/7] sched: Add wrapper for get_wchan() to keep task blocked
Date: Thu, 14 Oct 2021 11:46:31 +0100 [thread overview]
Message-ID: <YWgKh8JRYjDpU9zW@shell.armlinux.org.uk> (raw)
In-Reply-To: <20211008111626.332092234@infradead.org>
On Fri, Oct 08, 2021 at 01:15:32PM +0200, Peter Zijlstra wrote:
> From: Kees Cook <keescook@chromium.org>
>
> Having a stable wchan means the process must be blocked and for it to
> stay that way while performing stack unwinding.
>
> Suggested-by: Peter Zijlstra <peterz@infradead.org>
> Signed-off-by: Kees Cook <keescook@chromium.org>
> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> [arm]
I will eventually get around to test this once I've caught up.
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!
next prev parent reply other threads:[~2021-10-14 10:47 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-08 11:15 [PATCH 0/7] wchan: Fix wchan support Peter Zijlstra
2021-10-08 11:15 ` [PATCH 1/7] Revert "proc/wchan: use printk format instead of lookup_symbol_name()" Peter Zijlstra
2021-10-15 9:45 ` [tip: sched/core] " tip-bot2 for Kees Cook
2021-10-08 11:15 ` [PATCH 2/7] leaking_addresses: Always print a trailing newline Peter Zijlstra
2021-10-15 9:45 ` [tip: sched/core] " tip-bot2 for Kees Cook
2021-10-08 11:15 ` [PATCH 3/7] proc: Use task_is_running() for wchan in /proc/$pid/stat Peter Zijlstra
2021-10-15 9:45 ` [tip: sched/core] " tip-bot2 for Kees Cook
2021-10-08 11:15 ` [PATCH 4/7] x86: Fix get_wchan() to support the ORC unwinder Peter Zijlstra
2021-10-15 9:45 ` [tip: sched/core] " tip-bot2 for Qi Zheng
2021-10-08 11:15 ` [PATCH 5/7] sched: Add wrapper for get_wchan() to keep task blocked Peter Zijlstra
2021-10-08 11:26 ` Geert Uytterhoeven
2021-10-08 12:45 ` Mark Rutland
2021-10-14 10:46 ` Russell King (Oracle) [this message]
2021-10-15 9:45 ` [tip: sched/core] " tip-bot2 for Kees Cook
2021-10-08 11:15 ` [PATCH 6/7] arch: __get_wchan || STACKTRACE_SUPPORT Peter Zijlstra
2021-10-08 12:40 ` Mark Rutland
2021-10-08 13:45 ` Peter Zijlstra
2021-10-08 16:17 ` Josh Poimboeuf
2021-10-14 18:07 ` Mark Rutland
2021-10-14 18:41 ` Josh Poimboeuf
2021-10-14 18:03 ` Mark Rutland
2021-10-14 18:48 ` Josh Poimboeuf
2021-10-14 11:07 ` Russell King (Oracle)
2021-10-08 11:15 ` [PATCH 7/7] arch: Fix STACKTRACE_SUPPORT Peter Zijlstra
2021-10-08 12:52 ` Mark Rutland
2021-10-09 9:36 ` Guo Ren
2021-10-14 12:02 ` [PATCH 0/7] wchan: Fix wchan support Russell King (Oracle)
2021-10-14 13:38 ` Russell King (Oracle)
2021-10-14 19:51 ` Josh Poimboeuf
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