From: Frederic Weisbecker <frederic@kernel.org>
To: "Leizhen (ThunderTown)" <thunder.leizhen@huawei.com>
Cc: "Paul E . McKenney" <paulmck@kernel.org>,
Neeraj Upadhyay <quic_neeraju@quicinc.com>,
Josh Triplett <josh@joshtriplett.org>,
Steven Rostedt <rostedt@goodmis.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Lai Jiangshan <jiangshanlai@gmail.com>,
Joel Fernandes <joel@joelfernandes.org>,
rcu@vger.kernel.org, linux-kernel@vger.kernel.org,
Robert Elliott <elliott@hpe.com>
Subject: Re: [PATCH v7 5/6] doc: Document CONFIG_RCU_CPU_STALL_CPUTIME=y stall information
Date: Thu, 17 Nov 2022 13:23:35 +0100 [thread overview]
Message-ID: <20221117122335.GD839309@lothringen> (raw)
In-Reply-To: <1d007125-9e1a-8018-d6b4-8838ecc1a873@huawei.com>
On Thu, Nov 17, 2022 at 10:03:17AM +0800, Leizhen (ThunderTown) wrote:
> On 2022/11/17 6:55, Frederic Weisbecker wrote:
> > On Fri, Nov 11, 2022 at 09:07:08PM +0800, Zhen Lei wrote:
> > One last question I have. Usually all these informations can be deduced by
> > just looking at the stacktrace that comes along an RCU stall report. So on
> > which kind of situation the stacktrace is not enough?
>
> Interrupt storm.
Now that makes sense :)
Thanks.
>
> >
> > Thanks.
> > .
> >
>
> --
> Regards,
> Zhen Lei
next prev parent reply other threads:[~2022-11-17 12:23 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-11 13:07 [PATCH v7 0/6] rcu: Add RCU stall diagnosis information Zhen Lei
2022-11-11 13:07 ` [PATCH v7 1/6] genirq: Fix the return type of kstat_cpu_irqs_sum() Zhen Lei
2022-11-11 13:07 ` [PATCH v7 2/6] sched: Add helper kstat_cpu_softirqs_sum() Zhen Lei
2022-11-14 11:42 ` Frederic Weisbecker
2022-11-14 12:45 ` Leizhen (ThunderTown)
2022-11-14 12:50 ` Frederic Weisbecker
2022-11-14 14:26 ` Leizhen (ThunderTown)
2022-11-11 13:07 ` [PATCH v7 3/6] sched: Add helper nr_context_switches_cpu() Zhen Lei
2022-11-11 13:07 ` [PATCH v7 4/6] rcu: Add RCU stall diagnosis information Zhen Lei
2022-11-14 11:24 ` Frederic Weisbecker
2022-11-14 12:32 ` Leizhen (ThunderTown)
2022-11-14 12:46 ` Frederic Weisbecker
2022-11-16 22:39 ` Frederic Weisbecker
2022-11-17 1:57 ` Leizhen (ThunderTown)
2022-11-17 12:22 ` Frederic Weisbecker
2022-11-17 13:25 ` Leizhen (ThunderTown)
2022-11-17 14:26 ` Frederic Weisbecker
2022-11-18 2:03 ` Leizhen (ThunderTown)
2022-11-11 13:07 ` [PATCH v7 5/6] doc: Document CONFIG_RCU_CPU_STALL_CPUTIME=y stall information Zhen Lei
2022-11-12 22:52 ` kernel test robot
2022-11-14 9:29 ` Leizhen (ThunderTown)
2022-11-16 22:55 ` Frederic Weisbecker
2022-11-17 2:03 ` Leizhen (ThunderTown)
2022-11-17 12:23 ` Frederic Weisbecker [this message]
2022-11-11 13:07 ` [PATCH v7 6/6] rcu: Align the output of RCU stall Zhen Lei
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