Red Hat Bugzilla – Bug 599058
device-mapper invalidates snapshot when playing flash video
Last modified: 2013-01-10 00:59:31 EST
Description of problem:
On a liveusb with overlay, device-mapper invalidates snapshot when firefox crashes on playing a flash video. System becomes unusable.
If there is no overlay, firefox still crashes on playing flash video; however, the system continues to be usable.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1.Boot from a liveusb with overlay.
2.Install Adobe flash plugin for x64
3.Play a flash video, e.g. from youtube.
Firefox crashes and system stops working.
The system should be functional even if flash plugin causes firefox to crash.
tail -f /var/log/messages shows the following error:
device-mapper: snapshots: Invalidating snapshot
Unable to allocate exception
And the following error is repeated a few times:
lost page write due to I/O error on dm0
However, if there is no overlay on the liveusb, the log errors are:
Jun 2 19:17:57 localhost abrt: saved core dump of pid 1853 (/usr/lib64/firefox-3.6/firefox) to /var/cache/abrt/ccpp-1275486468-1853.new/coredump (348479488 bytes)
Jun 2 19:17:57 localhost abrtd: Directory 'ccpp-1275486468-1853' creation detected
Jun 2 19:17:57 localhost abrtd: Registered Database plugin 'SQLite3'
Jun 2 19:17:59 localhost abrtd: New crash /var/cache/abrt/ccpp-1275486468-1853, processing
Jun 2 19:17:59 localhost abrtd: Registered Action plugin 'RunApp'
Jun 2 19:17:59 localhost abrtd: RunApp('/var/cache/abrt/ccpp-1275486468-1853','test x"`cat component`" = x"xorg-x11-server-Xorg" && cp /var/log/Xorg.0.log .')
Use a bigger snapshot storage area, or disable core dumps perhaps?
Thanks very much. Disabling the core dump was the easier option. Seems obvious in retrospect that the core dumps had to be stored somewhere :(
Wish it were easier to know the real space available or used on a file system with overlay.
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