From: Nix <nix@esperi.org.uk>
To: Coly Li <colyli@suse.de>
Cc: linux-bcache@vger.kernel.org
Subject: Re: 5.11: WARN on long-running system
Date: Tue, 07 Sep 2021 13:07:00 +0100 [thread overview]
Message-ID: <87h7ewy4gr.fsf@esperi.org.uk> (raw)
In-Reply-To: <52ea2e1a-041d-b182-f345-c8c531dd4613@suse.de> (Coly Li's message of "Tue, 7 Sep 2021 12:12:43 +0800")
On 7 Sep 2021, Coly Li verbalised:
> On 9/1/21 9:15 PM, Nix wrote:
>> It is notable that the unused % of this cache volume has fallen to only
>> 3%: it's quite likely that this warning was emitted when it finally
>> (after three years or so!) ran out of free space and did its first
>> forced GC. I'm not sure how to tell.
> Hi Nix,
>
> I have the similar feeling as yours, that it has been a long time after previous gc running. I have no idea why the gc didn't run
> for such long time (this bucket was reused for 96 times). Let me try to find if there
> is any clue why the gc does not work for such long time.
It's probably just that my cache is 350GiB and it takes a long, long
time to fill that up. (As in, the unused % has been falling slowly for
three years and it's only just got close to zero in the last few
months.)
(Some GCs have run, but I have no idea why, given that when they ran the
unused % was about 40%.)
prev parent reply other threads:[~2021-09-07 12:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-01 13:15 5.11: WARN on long-running system Nix
2021-09-07 4:12 ` Coly Li
2021-09-07 12:07 ` Nix [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87h7ewy4gr.fsf@esperi.org.uk \
--to=nix@esperi.org.uk \
--cc=colyli@suse.de \
--cc=linux-bcache@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.