OMFG, I've found out what triggers this. It's not randomly opening and
closing the image several times. It's when I accidentally hit the
spacebar, which in ImageViewer is stupidly used as a keyboard shortcut
for loading the next image in the folder, which happens to be a huge svg
file of several GB.
So the issue happens to be the combination of two issues:
- (the huge one) when attempting to load a file too large to be manageable,
instead of issuing an error message or warning, eog tries to load it and eat up
as much memory as required, hanging the whole OS
- (a small one) image viewer uses a ridiculous shortcut for "next" which is the
space bar (I wonder what's the shortcut for "previous") which is unexpected,
counterintuitive, and in contrast with prevailing conventions in other similar
software.
I'll file these as separate bugs and close this one.
** Changed in: eog (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1328655
Title:
image viewer suddenly and randomly becomes unresponsive when viewing
big image and hangs the whole system - only option hard shut down
Status in “eog” package in Ubuntu:
Invalid
Bug description:
I have a png image with a size of 8580 by 6000 pixels. The file is
about 83MB in size (I know, the image uncompressed into memory is much
bigger, should be in the order of 147 or perhaps 196 MB; not that
much, anyway).
I can usually view and handle it easily with Image Viewer: zoom in,
zoom out, move around, without issues. I never modify and save it from
within Image Viewer, I just use it to view it.
Every once in a while, I close Image Viewer, I regenerate the image,
and I open it again in Image Viewer.
Everything works fine for a few times.
Then suddenly, when I have already opened the image and zoomed in and
out and moved around a few times and it seems to be working just fine,
the "loading" progress bar shows up on the bottom right corner of
Image Viewer, as if it was reloading the image (though it has NOT been
modified); the progress bar gets stuck around 18% or so, and the
program becomes completely unresponsive, and the whole system does.
It looks like Image Viewer suddenly starts eating up a lot of memory, causing
thrashing. It's the typical symptoms.
The system won't respond to clicks and keystrokes (the mouse cursor does
move, but jerkily).
So I can't even close Image Viewer or switch to a terminal or virtual console
and kill it; the only thing I can do is to physically power off the computer.
The last part is a more system-wide bug in Ubuntu (an OS should never,
ever stall unrecoverably because of the misbehavior of a single
program, no matter how bad), but the fact that Image Viewer suddenly
begins eating up memory exponentially (or whatever it is that it does
causing the system collapse) is certainly a bug in ImageViewer, and a
critical one.
It happens SYSTEMATICALLY after a few times I open and close the
image. I can't tell if it's systematically after a given number of
times, but sooner or later, it will happen, guaranteed. I have already
rebooted with the hardware button like 5 or 6 times in a few hours
because of this.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: eog 3.10.2-0ubuntu5
ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
Uname: Linux 3.13.0-29-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Jun 10 20:57:23 2014
InstallationDate: Installed on 2013-10-11 (242 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: eog
UpgradeStatus: Upgraded to trusty on 2014-05-24 (17 days ago)
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