[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <87wmxlcu75.ffs@tglx>
Date: Wed, 23 Aug 2023 23:41:50 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: Alan Huang <mmpgouride@...il.com>,
Huacai Chen <chenhuacai@...nel.org>
Cc: Z qiang <qiang.zhang1211@...il.com>,
"Paul E . McKenney" <paulmck@...nel.org>,
Huacai Chen <chenhuacai@...ngson.cn>,
Frederic Weisbecker <frederic@...nel.org>,
Neeraj Upadhyay <quic_neeraju@...cinc.com>,
Joel Fernandes <joel@...lfernandes.org>,
Josh Triplett <josh@...htriplett.org>,
Boqun Feng <boqun.feng@...il.com>,
Ingo Molnar <mingo@...nel.org>,
John Stultz <jstultz@...gle.com>,
Stephen Boyd <sboyd@...nel.org>,
Steven Rostedt <rostedt@...dmis.org>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
Lai Jiangshan <jiangshanlai@...il.com>,
Sergey Senozhatsky <senozhatsky@...omium.org>,
rcu@...r.kernel.org, linux-kernel@...r.kernel.org,
stable@...r.kernel.org, Binbin Zhou <zhoubinbin@...ngson.cn>
Subject: Re: [PATCH V4 2/2] rcu: Update jiffies in rcu_cpu_stall_reset()
On Wed, Aug 16 2023 at 23:56, Alan Huang wrote:
>> If do_update_jiffies_64() cannot be used in NMI context, can we
>
> What about updating jiffies in dbg_touch_watchdogs or adding a wrapper which updates
> both jiffies and jiffies_stall?
What makes dbg_touch_watchdogs() any different?
KGDB can pretty much have a breakpoint everywhere and therefore also
within the jiffies lock held region.
Thanks,
tglx
Powered by blists - more mailing lists