LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Luis Chamberlain <mcgrof@kernel.org>
To: fstests@vger.kernel.org
Cc: hare@suse.de, dgilbert@interlog.com, jeyu@kernel.org,
	lucas.demarchi@intel.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/4] common/module: add a patient module rmmod
Date: Thu, 29 Jul 2021 17:22:50 -0700	[thread overview]
Message-ID: <YQNGWqqIHKNRugcE@bombadil.infradead.org> (raw)
In-Reply-To: <20210727201045.2540681-4-mcgrof@kernel.org>

On Tue, Jul 27, 2021 at 01:10:44PM -0700, Luis Chamberlain wrote:
> Furthermore... experience on older kernels shows it may be a while
> before we can actually remove the module even *after*
> /sys/module/$module/refcnt is 0. This is only currently observed
> on older kernels.

Sadly this is incorrect, after running a test without any sleep
once refcnt is 0 also fails on linux-next, just that the failure rate
is much lower, at about ~ 1/1642.

So the sleep is still relevant even if testing with linux-next.

  Luis

  reply	other threads:[~2021-07-30  0:22 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-27 20:10 [PATCH 0/4] scsi_debug: improve failure rates Luis Chamberlain
2021-07-27 20:10 ` [PATCH 1/4] common/config: disable udevadm settle if CONFIG_NET is disabled Luis Chamberlain
2021-07-27 20:10 ` [PATCH 2/4] common/scsi_debug: use udevadm settle instead of sleeping Luis Chamberlain
2021-07-27 20:10 ` [PATCH 3/4] common/module: add a patient module rmmod Luis Chamberlain
2021-07-30  0:22   ` Luis Chamberlain [this message]
2021-08-10 21:31   ` Luis Chamberlain
2021-07-27 20:10 ` [PATCH 4/4] common/scsi_debug: use the patient module remover Luis Chamberlain

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=YQNGWqqIHKNRugcE@bombadil.infradead.org \
    --to=mcgrof@kernel.org \
    --cc=dgilbert@interlog.com \
    --cc=fstests@vger.kernel.org \
    --cc=hare@suse.de \
    --cc=jeyu@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=lucas.demarchi@intel.com \
    --subject='Re: [PATCH 3/4] common/module: add a patient module rmmod' \
    /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

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).