Bug 735995

Summary: general protection fault with PPS device
Product: [Fedora] Fedora Reporter: Miroslav Lichvar <mlichvar>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED INSUFFICIENT_DATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 16CC: gansalmon, itamar, jforbes, jonathan, kernel-maint, madhu.chinakonda
Target Milestone: ---Keywords: Reopened
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2012-11-14 16:33:18 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
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Description Flags
dmesg
none
kernel backtrace none

Description Miroslav Lichvar 2011-09-06 11:38:22 UTC 
Description of problem:
I saw this fault couple times when I had running both ldattach and latest gpsd from rawhide which supports PPS (and creates the device by the TIOCSETD ioctl).


Version-Release number of selected component (if applicable):
kernel-2.6.40.3-0.fc15.x86_64
gpsd-3.1-1.fc17.x86_64

How reproducible:
seems to be reproducible

Steps to Reproduce:
1. run latest gpsd from rawhide which creates /dev/pps0
2. run ldattach /dev/ttyS0
3. kill gpsd
  

Additional info:
dmesg attached

Please let me know if you need more information.
Comment 1 Miroslav Lichvar 2011-09-06 11:39:33 UTC 
Created attachment 521636 [details]
dmesg
Comment 2 Josh Boyer 2012-06-06 19:17:57 UTC 
Are you still seeing this with 2.6.43/3.3?
Comment 3 Josh Boyer 2012-07-11 17:51:44 UTC 
Fedora 15 has reached it's end of life as of June 26, 2012.  As a result, we will not be fixing any remaining bugs found in Fedora 15.

In the event that you have upgraded to a newer release and the bug you reported is still present, please reopen the bug and set the version field to the newest release you have encountered the issue with.  Before doing so, please ensure you are testing the latest kernel update in that release and attach any new and relevant information you may have gathered.

Thank you for taking the time to file a report.  We hope newer versions of Fedora suit your needs.
Comment 4 Miroslav Lichvar 2012-10-08 13:01:57 UTC 
This still seems to be happening, at least with kernel-3.4.9-2.fc16.x86_64.
Comment 5 Miroslav Lichvar 2012-10-08 13:03:56 UTC 
Created attachment 623448 [details]
kernel backtrace

This happened when ldattach 18 /dev/ttyS0 was running and systemctl restart gpsd.service was called.
Comment 6 Dave Jones 2012-10-23 15:38:38 UTC 
# Mass update to all open bugs.

Kernel 3.6.2-1.fc16 has just been pushed to updates.
This update is a significant rebase from the previous version.

Please retest with this kernel, and let us know if your problem has been fixed.

In the event that you have upgraded to a newer release and the bug you reported
is still present, please change the version field to the newest release you have
encountered the issue with.  Before doing so, please ensure you are testing the
latest kernel update in that release and attach any new and relevant information
you may have gathered.

If you are not the original bug reporter and you still experience this bug,
please file a new report, as it is possible that you may be seeing a
different problem. 
(Please don't clone this bug, a fresh bug referencing this bug in the comment is sufficient).
Comment 7 Justin M. Forbes 2012-11-14 16:33:18 UTC 
With no response, we are closing this bug under the assumption that it is no longer an issue. If you still experience this bug, please feel free to reopen the bug report.