Re: sd_mod load is delayed.

[Kay Sievers <kay.sievers@vrfy.org>]

On Sun, Jan 29, 2006 at 11:29:28AM +0200, Hai Zaar wrote:
> I'm using 2.6.15 + udev 081 + udev rules from here:
> http://ftp.jg555.com/udev/udev-cross-lfs.tar.bz2 Relevant modprobe rules are:
> # hotplug
> ENV{MODALIAS}="?*",    RUN+="/sbin/modprobe $env{MODALIAS}"
> 
> # scsi
> SUBSYSTEM="scsi_device",   ACTION="add", SYSFS{device/type}="1",
> SYSFS{device/vendor}="On[sS]tream", RUN+="/sbin/modprobe osst"
> SUBSYSTEM="scsi_device",   ACTION="add", SYSFS{device/type}="1",
> RUN+="/sbin/modprobe st"
> SUBSYSTEM="scsi_device",   ACTION="add", SYSFS{device/type}="[45]",
> RUN+="/sbin/modprobe sr_mod"
> SUBSYSTEM="scsi_device",   ACTION="add", RUN+="/sbin/modprobe sg"
> 
> Those rules do not handle sd_mod loading, so I've added the following
> line from SUSE rules:
> SUBSYSTEM="scsi_device",   ACTION="add",
> SYSFS{device/type}="0|7|14", RUN+="/sbin/modprobe sd_mod"
> 
> I have two storage controllers in my machine:
> 1. Intel SATA controller, handled by ata_piix driver.
> 2. LSI logic SCSI controller handled by mptlinux driver.
> 
> The situation:
> During initramfs stage, if I trigger event only for SATA controller,
> then after just 1 second lib_ata and  ata_piix modules are loaded
> together with sd_mod and friends, and /proc/partitions is populated.
> So just after 1-2 seconds I'm able boot from SATA.


Try adding this:
  ACTION="add", SUBSYSTEM="scsi", WAIT_FOR_SYSFS="ioerr_cnt"

And better don't use the "device" link anywhere directly:
  SUBSYSTEM="scsi_device", ACTION="add", SYSFS{type}="0|7|14", RUN+="/sbin/modprobe sd_mod"

Kay


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