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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,
	Luis Chamberlain <mcgrof@kernel.org>
Subject: [PATCH 0/4] scsi_debug: improve failure rates
Date: Tue, 27 Jul 2021 13:10:41 -0700	[thread overview]
Message-ID: <20210727201045.2540681-1-mcgrof@kernel.org> (raw)

When using scsi_debug to create virtual devices we can often run into
failures which are really just false positives, and the failure was the
inability to remove the module. Addressing this is not easy. While we
can learn from what blktests folks do and use udevadm settle, that's
not sufficient by any means. This addresses the other pieces needed.

More work is also needed on the scsi_debug driver front.

Makes me wonder if a patient kmod removal option is then desirable
upstream on kmod (just the one which waits to refcnt 0), given this sort
of test case. Lucas?

Luis Chamberlain (4):
  common/config: disable udevadm settle if CONFIG_NET is disabled
  common/scsi_debug: use udevadm settle instead of sleeping
  common/module: add a patient module rmmod
  common/scsi_debug: use the patient module remover

 common/config     |  9 ++++++++-
 common/module     | 48 +++++++++++++++++++++++++++++++++++++++++++++++
 common/scsi_debug | 10 ++++++----
 3 files changed, 62 insertions(+), 5 deletions(-)

-- 
2.29.2


             reply	other threads:[~2021-07-27 20:10 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-27 20:10 Luis Chamberlain [this message]
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
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

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