webbrowser-app taken down by OOM killer when opening many new windows

[Emanuele Sorce]

Then when I relaunch the browser all the ten windows are reopened.
How to reproduce the bug:
Open the browser, then open the right bar and press new window. In the new window press the new window button. Continue in that way until in the 10th window you press new window, and all chrashes. Relaunch the browser and you will see all the ten window again opened.
I'm on bq E5, rc-proposed. Thanks for all your work and for the new windows functionality! ;)

[Olivier Tilloy (osomon)]

I’m seeing that on my E4.5, after opening a variable number of new windows. This is the system’s OOM killer kicking in to free up memory:

Dec 13 11:48:09 ubuntu-phablet kernel: [ 886.894729]select 'unity8-dash' (3308), adj 50, size 23148, to kill
Dec 13 11:48:09 ubuntu-phablet kernel: [ 886.894761]select 'terminal' (12257), adj 100, size 8925, to kill
Dec 13 11:48:09 ubuntu-phablet kernel: [ 886.894781]select 'webbrowser-app' (14427), adj 110, size 48188, to kill
Dec 13 11:48:09 ubuntu-phablet kernel: [ 886.894807]Killing 'webbrowser-app' (14427), adj 110,
Dec 13 11:48:09 ubuntu-phablet kernel: [ 886.894811] to free 192752kB on behalf of 'QQuickPixmapRea' (14509) because
Dec 13 11:48:09 ubuntu-phablet kernel: [ 886.894817] cache 62096kB is below limit 65536kB for oom_score_adj 12
Dec 13 11:48:09 ubuntu-phablet kernel: [ 886.894821] Free memory is -3076kB above reserved [gfp(0x200da)]

[Olivier Tilloy (osomon)]

One thing that could be done is to update the memory pressure monitor to try and close empty windows (the current behaviour only tries to unload background tabs).