1477186 - Firefox has IPC memory leaks

Status: RESOLVED WORKSFORME

(Core :: Graphics: WebRender, defect)

Description

[orlien.76]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:63.0) Gecko/20100101 Firefox/63.0
Build ID: 20180702100140

Steps to reproduce:

While firefox for hours only browsing websites, the shared memory keeps growing without releasing properly.


Actual results:

There is a lot of shared memory files still opened

> cat /proc/2453/maps | grep org.chromium | grep deleted | wc -l
> 18499

> cat /proc/2453/status
> [..]
> VmPeak:	 9019164 kB
> VmSize:	 8822280 kB
> VmLck:	       0 kB
> VmPin:	       0 kB
> VmHWM:	 5666828 kB
> VmRSS:	 5535504 kB
> RssAnon:	  673964 kB
> RssFile:	  189676 kB
> RssShmem:	 4671864 kB


Expected results:

There shouldn't be that much files opened

Comment 1

[Darkspirit]

(In reply to orlien.76 from comment bug 1453735 comment 6)
> Firefox version: 63.01a (2018-07-02) (64-bit) (using webrender)

Do you see the same problem if WebRender is disabled?

Comment 2

[orlien.76]

(In reply to Jan Andre Ikenmeyer [:darkspirit] | about:restartrequired from comment #1)
> (In reply to orlien.76 from comment bug 1453735 comment 6)
> > Firefox version: 63.01a (2018-07-02) (64-bit) (using webrender)
> 
> Do you see the same problem if WebRender is disabled?

It seems that it only happend while webrender is enabled

Comment 3

[Kartikaya Gupta (email:[e-mail])]

Do you tend to open a lot of browser windows when you browse, or do all your browsing in a single window?

I tried to reproduce this but wasn't able to - if you run into specific pages that trigger this behaviour that would be good to know about.

Comment 4

[orlien.76]

(In reply to Kartikaya Gupta (email:[e-mail]) from comment #3)
> Do you tend to open a lot of browser windows when you browse, or do all your
> browsing in a single window?
> 
> I tried to reproduce this but wasn't able to - if you run into specific
> pages that trigger this behaviour that would be good to know about.

I always use a single window and I was just refreshing this page or wikipedia home pages (or any website), but it seems that the problem disappeared (63.0a1 (2018-07-19) (64-bit)).

Comment 5

[Kartikaya Gupta (email:[e-mail])]

Hm, ok. Do let us know if you see it again. Thanks!

Comment 6

[orlien.76]

It seems to happend by opening tabs, dropping a tab out of the window (thus, creating a new window) and moving all the other tabs to that new windows

Comment 7

[orlien.76]

Attachment: 2018-08-03 at 12.21.28.965324462.png

Comment 8

[orlien.76]

Comment on attachment 8997373 [details]
2018-08-03 at 12.21.28.965324462.png

Tt seems to grow even faster when suspending my computer. When it goes out from standby, everything is messed up as you see in the attachment, so I move all the tabs to a new window (which makes everything back to normal but creates a lot of leaks).
I'm using NVIDIA 390.59 driver.

Comment 9

[Darkspirit]

(In reply to orlien.76 from comment #8)
> When it goes out from standby, everything is messed up as you see in the attachment

That should be bug 1469496.