From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Qian Cai <cai@lca.pw>, Steven Rostedt <rostedt@goodmis.org>,
Petr Mladek <pmladek@suse.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Peter Zijlstra <peterz@infradead.org>,
Waiman Long <longman@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Theodore Ts'o <tytso@mit.edu>, Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Subject: Re: printk() + memory offline deadlock (WAS Re: page_alloc.shuffle=1 + CONFIG_PROVE_LOCKING=y = arm64 hang)
Date: Thu, 19 Sep 2019 00:58:23 +0900 [thread overview]
Message-ID: <20190918155823.GB158834@tigerII.localdomain> (raw)
In-Reply-To: <20190918155059.GA158834@tigerII.localdomain>
A correction:
On (09/19/19 00:51), Sergey Senozhatsky wrote:
[..]
>
> zone->lock --> console_sem->lock
>
> So then we have
>
> zone->lock --> console_sem->lock --> pi_lock --> rq->lock
>
> vs. the reverse chain
>
> rq->lock --> console_sem->lock
^^^ zone->lock
-ss
next prev parent reply other threads:[~2019-09-18 15:58 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-22 21:33 page_alloc.shuffle=1 + CONFIG_PROVE_LOCKING=y = arm64 hang Qian Cai
2019-08-23 11:37 ` Will Deacon
2019-08-23 11:52 ` Qian Cai
2019-09-05 21:08 ` Qian Cai
2019-09-10 15:22 ` Qian Cai
2019-09-10 19:49 ` Qian Cai
2019-09-12 2:28 ` CONFIG_SHUFFLE_PAGE_ALLOCATOR=y lockdep splat (WAS Re: page_alloc.shuffle=1 + CONFIG_PROVE_LOCKING=y = arm64 hang) Qian Cai
2019-09-10 20:35 ` page_alloc.shuffle=1 + CONFIG_PROVE_LOCKING=y = arm64 hang Qian Cai
2019-09-11 1:10 ` Sergey Senozhatsky
2019-09-12 12:05 ` Qian Cai
2019-09-16 14:42 ` Steven Rostedt
2019-09-17 0:53 ` Sergey Senozhatsky
2019-09-18 14:39 ` printk() + memory offline deadlock (WAS Re: page_alloc.shuffle=1 + CONFIG_PROVE_LOCKING=y = arm64 hang) Qian Cai
2019-09-18 15:50 ` Sergey Senozhatsky
2019-09-18 15:58 ` Sergey Senozhatsky [this message]
2019-09-18 16:10 ` Qian Cai
2019-09-23 10:21 ` Sergey Senozhatsky
2019-09-23 12:58 ` Petr Mladek
2019-09-23 13:24 ` Qian Cai
2019-09-24 1:28 ` Sergey Senozhatsky
2019-09-23 13:09 ` Qian Cai
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