Red Hat Bugzilla – Bug 74807
Firewire (IEEE1394) SMP hard locks
Last modified: 2008-08-01 12:22:52 EDT
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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):
Steps to Reproduce:
1. power machine on
2. plug IEE1394 device in
3. paff. Hard lock, no panic, just hard lock.
Bog standard TI chipset cards, Via based dual processor P3 system and 760MPX
dual Athlon MP system.
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.
Looks like # 76303 as to the second comment
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/