[Bug 48499] Re: hald blocks ide bus if cdrom on same bus with harddisk(was:Extremly slow IO performance with dapper, high wa% on Dell Inspiron 8200)

[Per Heldal]

This update adds information I have previously reported in a thread on
ubuntuforums.org:

hald on edgy still behaves badly on an Inspiron 8200 here. I've found
that it does *not* work to stop hald from polling the CD-drive and stop
blocking the IDE-channel by adding filters in /etc/hal. It does however
work if I add the rule in /usr/share/hal/fdi/preprobe/10osvendor/10-ide-
drives.fdi. I haven't yet examined the source for hald to figure out why
blacklisting the device through config-files in /etc doesn't have the
same effect as changing the vendor-file in /usr/share/hal.

The problem was introduced through a CVS update in october 2005. A copy
of the diff is attached. Reversing this diff and then restart hald
solves the problem. The system will not detect changes to the CD-drive
with the blacklist entry in place, but having to mount manually is much
preferred over crippled IDE performance.

** Attachment added: "HAL blacklist-entry removal diff"
   http://librarian.launchpad.net/5907427/hal-fix-remove_blacklisted_HL-DT-STCD-RW.txt

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hald blocks ide bus if cdrom on same bus with harddisk(was:Extremly slow IO performance with dapper, high wa% on Dell Inspiron 8200)
https://launchpad.net/bugs/48499