Red Hat Bugzilla – Bug 61820
USB Sync with Visor Prism results in segfault
Last modified: 2008-05-01 11:38:01 EDT
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Description of problem:
When using the pilot-link tools to access my USB Visor Prism, the tools complete
successfully, and then segfault on exit.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Press hotsync button on cradle to allow hotplug to load drivers, etc.
2. Run a pilot-link program (dlpsh or pilot-xfer I've tried so far)
3. Let program finish
Actual Results: Program completes successfully, then segmentation faults on exit.
Expected Results: Program should complete successfully, and exit cleanly.
I also tried with a version I had around of pilot-link 0.9.6 from cvs, that did
the same thing. Also, there is a log message about an error loading the visor
module/driver. It is shown loaded in an lsmod, however.
I'll attach /var/log/messages - let me know if there's anything else you need
Created attachment 50024 [details]
/var/log/messages - there are a few instances of the segfault near the end
Could you please try with kernel-2.4.9-21 if this bug is fixed? thanks
Where can I get this from? Do you mean 2.4.9-31 from 7.2 updates? I can't find
a copy of 2.4.9-21 for i386/i686. For what it's worth, this had been working in
7.2 before I upgraded to the beta, with 2.4.9-31.
i think it should be a bug in kernel.
Just wondering since I havne't heard anything yet - do you still need me to try
another kernel? If so, where can I get it?
It would be useful if you installed the current Raw Hide kernel
from ftp.redhat.com /pub/redhat/linux/rawhide/i386/RedHat/RPMS.
It is far from production, but helps to see if it fixes the problem.
The maintainer (Greg K-H) told me that he fixed some similar
things around 2.4.12.
BTW, DO NOT REMOVE 2.4.9-31. If Raw Hide bombs on you,
you have to have a backup. Have them side by side in
I tried the Rawhide kernel (2.4.18-0.10), and that produced the same segfault
error as the skipjack kernel that was installed by default (2.4.18-0.4). I also
installed 2.4.9-31 from 7.2 updates, and with this kernel, there is no
I also tried (while running 2.4.18-0.10) to rebuild the pilot-link package from
SRPMS to see if that maybe helped, and that package produced the same error.
Let me know what else you want me to try, or if there's any more information I
can give you.
This is a known bug, sorry.
It's fixed in the 2.5 tree, and there's a quick fix at:
But that patch will break all other usb-serial drivers. I'll make a patch that
will work for all devices in a short bit.
Real fix for this bug is now at:
Pete, feel free to add this to your kernel :)
It is too close for a release, and I do not have the hardware
even for a sanity test. I am casting about for help from
Meridian people. The fix looks good, but I have a history
of botching even trivial fixes, so no bending the procedure
anymore for me...
The fix made beta4,
Anyone is up for testing?
I'll try that kernel out sometime this weekend after I upgrade to skipjack2 and
let you know.
OK, this appears to me to be fixed. As long as nobody else is having problems,