From: Minchan Kim <minchan@kernel.org>
To: Georgi Djakov <georgi.djakov@linaro.org>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm/page_io: Use pr_alert_ratelimited for swap read/write errors
Date: Mon, 1 Feb 2021 10:43:52 -0800 [thread overview]
Message-ID: <YBhL6LkWAAV0QEZL@google.com> (raw)
In-Reply-To: <20210201142055.29068-1-georgi.djakov@linaro.org>
On Mon, Feb 01, 2021 at 04:20:55PM +0200, Georgi Djakov wrote:
> If there are errors during swap read or write, they can easily fill
> the log buffer and remove any previous messages that might be useful
> for debugging, especially on systems that rely for logging only on
> the kernel ring-buffer.
>
> For example, on a systems using zram as swap, we are more likely to
> see any page allocation errors preceding the swap write errors if the
> alerts are ratelimited.
>
> Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Acked-by: Minchan Kim <minchan@kernel.org>
next prev parent reply other threads:[~2021-02-01 18:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-01 14:20 [PATCH] mm/page_io: Use pr_alert_ratelimited for swap read/write errors Georgi Djakov
2021-02-01 18:43 ` Minchan Kim [this message]
2021-02-02 2:15 ` Miaohe Lin
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