813372 - b2g process crash with this testcase, using -moz-transition

Status: RESOLVED FIXED

Description

[Martijn Wargers (zombie)]

See url testcase, shortly after opening that url with the b2g browser on my Otoro phone, I get an OS reboot.

I submitted the FirefoxOS crash reports, with the dialog at the bottom that I'm seeing after the system reboot.
I don't know where you could see those, though. My Otoro phone nr. is 12539.

Comment 1

[Jet Villegas (inactive)]

+cc: jwatt

Can you trap the crash on your B2G phone?

Comment 2

[Robert Kaiser]

(In reply to Martijn Wargers [:mw22] (QA - IRC nick: mw22) from comment #0)
> I submitted the FirefoxOS crash reports, with the dialog at the bottom that
> I'm seeing after the system reboot.
> I don't know where you could see those, though. My Otoro phone nr. is 12539.

You could retrieve the crash ID by connecting your device to a computer with adb and executing this command:

adb shell ls -l /data/b2g/mozilla/Crash\ Reports/submitted/

We unfortunately don't have about:crashes on the devices at this time.

Comment 3

[Martijn Wargers (zombie)]

Ok, thanks. it doesn't seem like the crash report contains anything useful:
https://crash-stats.mozilla.com/report/index/8412b99c-a690-497a-b196-6ca172121126
0 		@0x40fb6b4e

Comment 4

[Robert Kaiser]

(In reply to Martijn Wargers [:mw22] (QA - IRC nick: mw22) from comment #3)
> Ok, thanks. it doesn't seem like the crash report contains anything useful:
> https://crash-stats.mozilla.com/report/index/8412b99c-a690-497a-b196-
> 6ca172121126
> 0 		@0x40fb6b4e

We unfortunately have that happen quite a lot right now. Bug 811335 might help improve those cases.

Comment 5

[Jet Villegas (inactive)]

jwatt: please update with a stack trace

Comment 6

[Andrew Overholt [:overholt]]

Setting priority based on triage discussions.  Feel free to decrease priority if you disagree.

Comment 7

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

I can't reproduce this.

Comment 8

[Martijn Wargers (zombie)]

Still reproducable with the latest build on the Otoro phone.

Comment 9

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

What does "latest build" mean?

I'm testing with latest commits on the nightly branch as of this morning.

Comment 10

[Martijn Wargers (zombie)]

The latest build that I got an update with. But I guess you have a newer build, so perhaps this can be closed then.

Comment 11

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

I can reproduce on the 11-29 nightly.  Let me retest with my latest build.

Comment 12

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Hm, I'm able to reproduce now, for some reason.

Comment 13

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

(gdb) bt
#0  mozilla::gl::TiledTextureImage::GetTileRect (this=0x443492c0) at /home/cjones/mozilla/new-b2g/gecko/gfx/gl/GLContext.cpp:1156
#1  0x40fcfc58 in mozilla::gl::TiledTextureImage::GetSrcTileRect (this=0xffffffff) at /home/cjones/mozilla/new-b2g/gecko/gfx/gl/GLContext.cpp:1165
#2  0x40fd0dc0 in mozilla::gl::TiledTextureImage::DirectUpdate (this=0x443492c0, aSurf=<value optimized out>, aRegion=<value optimized out>, aFrom=...) at /home/cjones/mozilla/new-b2g/gecko/gfx/gl/GLContext.cpp:951
#3  0x40fbbb8c in mozilla::layers::ShadowImageLayerOGL::Swap (this=<value optimized out>, aNewFront=..., aNewBack=0x438e0a18) at /home/cjones/mozilla/new-b2g/gecko/gfx/layers/opengl/ImageLayerOGL.cpp:788
#4  0x40fcec02 in mozilla::layers::ShadowLayersParent::RecvUpdate (this=<value optimized out>, cset=<value optimized out>, targetConfig=<value optimized out>, isFirstPaint=<value optimized out>, reply=0x438e0bdc) at /home/cjones/mozilla/new-b2g/gecko/gfx/layers/ipc/ShadowLayersParent.cpp:447
#5  0x40e99c22 in mozilla::layers::PLayersParent::OnMessageReceived (this=0x43df4940, __msg=<value optimized out>, __reply=@0x438e0cfc) at /home/cjones/mozilla/new-b2g/objdir-gecko/ipc/ipdl/PLayersParent.cpp:508
#6  0x40e93cc2 in mozilla::layers::PCompositorParent::OnMessageReceived (this=0x4ce5b960, __msg=..., __reply=@0x438e0cfc) at /home/cjones/mozilla/new-b2g/objdir-gecko/ipc/ipdl/PCompositorParent.cpp:393
(gdb) p *mImages.mHdr
$11 = {
  static sEmptyHdr = {
    static sEmptyHdr = <same as static member of an already seen type>, 
    mLength = 0, 
    mCapacity = 0, 
    mIsAutoArray = 0
  }, 
  mLength = 0, 
  mCapacity = 0, 
  mIsAutoArray = 0
}

We're on the compositor thread, and a ShadowImageLayer doesn't have any images allocated to its TextureImage.  Very odd ...

Comment 14

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

This is happening because we're trying to use a 0x0 buffer for the image layer, and TextureImage doesn't like that.

This is easy enough to "fix", but is it legal to have a 0x0 image to begin with?

Comment 15

[Robert O'Callahan (:roc) (email my personal email if necessary)]

It's strange, but I think it should be legal. I don't think it's a good idea to require non-zero sizes in APIs.

Comment 16

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Attachment: Test for bug 813372

This doesn't crash in fennec, but the rendering is really garbled so another bug might be hiding this.

Comment 17

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Attachment: Guard against TiledTextureImage with dimensions of 0

Pretty gross, but if this is something we want to allow, we should be flexible at the lowest level possible.

Comment 18

[Matt Woodrow (:mattwoodrow)]

Comment on attachment 687959 [details] [diff] [review]
Guard against TiledTextureImage with dimensions of 0

Review of attachment 687959 [details] [diff] [review]:
-----------------------------------------------------------------

::: gfx/gl/GLContext.cpp
@@ +923,4 @@
>  {
>      mTileSize = (!(aFlags & TextureImage::ForceSingleTile) && mGL->WantsSmallTiles())
>          ? 256 : mGL->GetMaxTextureSize();
> +    if (aSize.width != 0 && aSize.height != 0) {

Having an IsEmpty() on BaseSize might be nice here.

Comment 19

[Matt Woodrow (:mattwoodrow)]

Comment on attachment 687957 [details] [diff] [review]
Test for bug 813372

Missing a qref? This appears to be an empty patch :)

Comment 20

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Attachment: Test for bug 813372, v1.1

hg conveniently forwarded the changes to a qnew patch that I later qrm'd.  Thanks hg!

Comment 21

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

(In reply to Matt Woodrow (:mattwoodrow) from comment #18)
> Comment on attachment 687959 [details] [diff] [review]
> Guard against TiledTextureImage with dimensions of 0
> 
> Review of attachment 687959 [details] [diff] [review]:
> -----------------------------------------------------------------
> 
> ::: gfx/gl/GLContext.cpp
> @@ +923,4 @@
> >  {
> >      mTileSize = (!(aFlags & TextureImage::ForceSingleTile) && mGL->WantsSmallTiles())
> >          ? 256 : mGL->GetMaxTextureSize();
> > +    if (aSize.width != 0 && aSize.height != 0) {
> 
> Having an IsEmpty() on BaseSize might be nice here.

I agree.  Filed bug 817846 for the bikeshedding.

Comment 22

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

https://tbpl.mozilla.org/?tree=Try&rev=d20e6fb3e734

Comment 23

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

Attachment: Fix rebased on beta

Comment 24

[Chris Jones [:cjones] inactive; ni?/f?/r? if you need me]

https://hg.mozilla.org/integration/mozilla-inbound/rev/3932ed990e9b
https://hg.mozilla.org/integration/mozilla-inbound/rev/54731c5fdc2c

Comment 25

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/3932ed990e9b
https://hg.mozilla.org/mozilla-central/rev/54731c5fdc2c

Comment 26

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/releases/mozilla-aurora/rev/bebce27634df
https://hg.mozilla.org/releases/mozilla-aurora/rev/317a6f1796c3

https://hg.mozilla.org/releases/mozilla-beta/rev/f42e152981d0
https://hg.mozilla.org/releases/mozilla-beta/rev/510194c878d3

Comment 27

[Naoki Hirata :nhirata (please use needinfo instead of cc)]

removing qawanted; cjones did reproduce this and there are fixes in place.

Comment 28

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/37b8fa6c1c92