Bug 702965

Summary: Segfault in npviewer.bin brought my WiFi connection down
Product: [Fedora] Fedora Reporter: Jirka Daněk <juraad>
Component: nspluginwrapperAssignee: Martin Stransky <stransky>
Status: CLOSED INSUFFICIENT_DATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: caillon, stransky
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Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2011-05-09 06:36:01 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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output of dmesg none

Description Jirka Daněk 2011-05-08 18:09:56 UTC 
Created attachment 497660 [details]
output of dmesg

Description of problem:
For no apparent reason my Wi-Fi connection went down. I have a D-Link DWL-G122 C1 USB dongle. The lights on it went dark. Looking into dmesg, I spotted this:

[19488.088875] npviewer.bin[3441]: segfault at 0 ip 000000004f6d32b0 sp 00000000fff65a70 error 4 in libglib-2.0.so.0.2800.6[4f692000+118000]

taking the USB dongle out and plugging it back in brought the connection back online.

I have no idea what caused this and how to reproduce it. Also, Abrt shows nothing regarded to the crash and I have no idea where Fedora does store coredumps. So please could you tell me that? (And what to do with it?)

My HW profile: http://smolt.fedoraproject.org/show?uuid=pub_56adb9dd-c210-4a9d-870e-6ebef7f8d37a + D-Link DWL-G122 C1 USB dongle
Comment 1 Nicolas Chauvet (kwizart) 2011-05-08 18:54:20 UTC 
As I understand the problem, this is related to nspluginwrapper, so probably produced by a browser plugin.

IIRC nspluginwrapper is blacklisted from abrt because it will take crash of proprietary plugins.

The crash was propagated to NetworkManager because it's using a glib2 loop.

So here are some components that might be involved:
-nspluginwrapper
-glib2
-NetworkManager-glib

Please re-assign to one of the component above.
But please try to reproduce the problem.
Comment 2 Martin Stransky 2011-05-09 06:36:01 UTC 
I don't think a crash in nspluginwrapper (And I suppose inside flash plugin) can bring the wifi down. Closing for now, please reopen if you have closer info or reproduction steps.