public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: "Darryl L. Miles" <darryl@netbauds.net>
To: linux-kernel@vger.kernel.org
Subject: 2.6.12 initrd module loading seems parallel on bootup
Date: Sat, 25 Jun 2005 23:09:44 +0100	[thread overview]
Message-ID: <42BDD628.6020807@netbauds.net> (raw)


I'm witnessing a problem with mounting root on a system that loads 
modules from initrd in order to be able to mount root, this problem does 
not exist in 2.6.11.12 but does in 2.6.12 and 2.6.12.1.  Its as-if the 
modprobe/insmod from the initrd mini-root is loading the modules in 
parallel rather than in series.  The machine is SMP too.

The printk output over the console indicates the module loading is 
happening in parallel, as I can clearly see different driver bootup 
messages out of their expected order.

During bootup synchronous behavior is needed so that the drivers can be 
loaded in the order to allow auto-detection to occur at each stage in 
order to resolve root, in my case:

Loading scsi_mod.ko module
Loading sd_mod.ko module
Loading scsi_transport_spi.ko module
Loading sym53c8xx.ko module
Loading cpqarray.ko module
Loading raid1.ko module
Loading jbd.ko module
Loading ext3.ko module

For an EXT3 fs over /dev/md0 over sym53x8xx SCSI bus.


Maybe this problem is a userspace problem, like an extra option needed 
to insmod to make is wait ?  Please advise.

-- 
Darryl L. Miles



             reply	other threads:[~2005-06-25 22:11 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-06-25 22:09 Darryl L. Miles [this message]
  -- strict thread matches above, loose matches on Subject: below --
2005-06-26  1:02 2.6.12 initrd module loading seems parallel on bootup Darryl L. Miles
2005-06-26  3:53 ` Christian Trefzer
2005-06-26  6:46 ` Andrew Morton
2005-06-26  9:26   ` Pozsár Balázs
2005-06-26 11:53     ` Christian Trefzer
2005-06-26 10:06   ` Darryl L. Miles
2005-06-26 12:00     ` Christian Trefzer
2005-06-26 14:11       ` Toon van der Pas
2005-06-27  5:47         ` Darryl L. Miles
2005-06-29 23:39           ` Christian Trefzer
2005-06-30  8:45             ` Darryl L. Miles
2005-06-30 14:12               ` Christian Trefzer
2005-06-26 13:19   ` Parag Warudkar
     [not found] <4jtOU-508-21@gated-at.bofh.it>
     [not found] ` <4jz7U-9S-7@gated-at.bofh.it>
     [not found]   ` <4jBCN-20Q-9@gated-at.bofh.it>
2005-06-27  6:24     ` Martin Wilck

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=42BDD628.6020807@netbauds.net \
    --to=darryl@netbauds.net \
    --cc=linux-kernel@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox