Red Hat Bugzilla – Bug 170914
kernel panic if FX240S CD-ROM in system
Last modified: 2015-01-04 17:22:38 EST
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Description of problem:
Two different systems, one a Gateway 2000 circa 1998, the other a homebuild who-knows-what, both i686 with _different_ FX240S cd-rom drives, give a kernel panic and stack strace with the install CD, rescue CD, or installed kernel.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Boot with install or rescue CD
2. enter "linux"
Actual Results: A few expected messages, the kernel panic with backtrace
Expected Results: Normal installation
Replacing the Mitsumi FX240S from either system with another CD-ROM eliminates the problem. Also, adding "ide=nodma" seems to work around the problem.
http://www.fedorafaq.org/#otherinstall says if "ide=nodma" works, I should file a bug report; here it is. Note that installation works fine (no kernel parms required) with RedHat 9 on the same systems (which have almost nothing in common except the FX240S CD drives).
2.6.14-1.1637_FC4 has been released as an update for FC4.
Please retest with this update, as a large amount of code has been changed in
this release, which may have fixed your problem.
You're welcome. Unfortunately 2.6.14-1.1637_FC4 produces the same results. Is
there a way I can capture the crash data for you? The alt+sysrq+? seems to work
after the panic...
try alt-sysrq-s which will sync everything to disk, and then check
/var/log/messages on the next boot to see if the panic hit the logs. If so,
paste it here.
If not, can you boot with vga=791 (this should get more lines of text on the
screen), and then transcribe the panic data here ? If you have a digital
camera, feel free to attach a pic of the panic (make sure its readable first
Created attachment 120995 [details]
Kernel 2.6.14-1.1637_FC4 panic w/ FX240S CD drive and ide dma enabled
This is a transcription of the on-screen panic from 2.6.14-1.1637_FC4
when ide dma is enabled and an FX240S CD drive is in the system.
This particular panic occurred shortly after the "Reading physical volumes this
may take a while" message with a CD in the drive, but similar panics occur
eventually whether there's a CD in the drive or not.
This is a mass-update to all currently open kernel bugs.
A new kernel update has been released (Version: 2.6.15-1.1830_FC4)
based upon a new upstream kernel release.
Please retest against this new kernel, as a large number of patches
go into each upstream release, possibly including changes that
may address this problem.
This bug has been placed in NEEDINFO_REPORTER state.
Due to the large volume of inactive bugs in bugzilla, if this bug is
still in this state in two weeks time, it will be closed.
Should this bug still be relevant after this period, the reporter
can reopen the bug at any time. Any other users on the Cc: list
of this bug can request that the bug be reopened by adding a
comment to the bug.
If this bug is a problem preventing you from installing the
release this version is filed against, please see bug 169613.
Closing per previous comment.