LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Tejun Heo <tj@kernel.org>
To: linux-scsi <linux-scsi@vger.kernel.org>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Kay Sievers <kay.sievers@vrfy.org>,
	Jens Axboe <jens.axboe@oracle.com>
Subject: why does udev set timeout for all SCSI devices?
Date: Thu, 30 Oct 2008 11:55:04 +0900	[thread overview]
Message-ID: <49092208.9060909@kernel.org> (raw)

Hello, Kay.

As the $SUBJ says, why does udev set timeout for all SCSI devices?
It's the following two rules.

50-udev-default.rules:SUBSYSTEM=="scsi", KERNEL=="[0-9]*:[0-9]*",
ACTION=="add", ATTR{type}=="0|7|14", ATTR{timeout}="60"
50-udev-default.rules:SUBSYSTEM=="scsi", KERNEL=="[0-9]*:[0-9]*",
ACTION=="add", ATTR{type}=="1", ATTR{timeout}="900"

The appropriate default timeout differs depending on the transport and
the type of the attached device, so the above two rules harm more than
help.  The affect of the above two rules weren't visible for some
reason but with recent block layer timeout update, they actually work
and cause problems.

Thanks.

-- 
tejun

             reply	other threads:[~2008-10-30  2:55 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-30  2:55 Tejun Heo [this message]
2008-10-30  8:30 ` Kay Sievers

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=49092208.9060909@kernel.org \
    --to=tj@kernel.org \
    --cc=jens.axboe@oracle.com \
    --cc=kay.sievers@vrfy.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-scsi@vger.kernel.org \
    --subject='Re: why does udev set timeout for all SCSI devices?' \
    /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).