Bug 74807 - Firewire (IEEE1394) SMP hard locks
Firewire (IEEE1394) SMP hard locks
Product: Red Hat Linux
Classification: Retired
Component: kernel (Show other bugs)
i386 Linux
medium Severity high
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Assigned To: Arjan van de Ven
Brian Brock
Depends On:
  Show dependency treegraph
Reported: 2002-10-01 16:38 EDT by Phil Messenger
Modified: 2008-08-01 12:22 EDT (History)
3 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2004-09-30 11:39:57 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Phil Messenger 2002-10-01 16:38:53 EDT
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) Gecko/20020921

Description of problem:
If I hot plug a Firewire device on either of my SMP machines, I get hard locks.
This happens every time. Iterestingly, if I plug the device in whilst the
machine is powered down, it works as expected. 

I experienced this problem in the 2.4.10 days. At that time, the problem was
caused by dodgy locking in sbp2.c. I haven't had time to investigate in any
depth this time round.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. power machine on
2. plug IEE1394 device in
3. paff. Hard lock, no panic, just hard lock.

Additional info:

Bog standard TI chipset cards, Via based dual processor P3 system and 760MPX
dual Athlon MP system.
Comment 1 Eric Smith 2002-10-15 03:46:55 EDT
I have the same problem whether the firewire devices are hot-plugged or are
present before power-up.  Asus dual-Athlon motherboard using 760MPX chipset,
with two 1394 controllers, a generic OHCI card and a Creative Labs Audigy.
Three Maxtor drives, two CD-R, and a DVD-R on the generic OHCI card, nothing
plugged into the Audigy.
Comment 2 R P Herrold 2002-10-23 02:27:25 EDT
Looks like # 76303 as to the second comment
Comment 3 Bugzilla owner 2004-09-30 11:39:57 EDT
Thanks for the bug report. However, Red Hat no longer maintains this version of
the product. Please upgrade to the latest version and open a new bug if the problem

The Fedora Legacy project (http://fedoralegacy.org/) maintains some older releases, 
and if you believe this bug is interesting to them, please report the problem in
the bug tracker at: http://bugzilla.fedora.us/

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