813296 - Out of PMEM error when trying to call navigator.id.request() on b2g/latest, 2012-11-19

Status: RESOLVED WORKSFORME

(Core Graveyard :: Identity, defect, P1)

Description

[Jed Parsons (use needinfo, please) [:jedp, :jparsons]]

Attachment: logcat of errors

Testing Identity login on unagi_2012-11-19 (https://releases.mozilla.com/b2g/latest/) fails with "Out of PMEM errors"

Preliminary steps:  Preffed native identity on by pushing user.js into /data/local/ (as described in Bug 811528)

To test, I visit this page in the browser on the phone: http://people.mozilla.com/~jparsons/demo.html

Logcat shows that navigator.id.watch() is called successfully.  When I click the login button, which is bound by jquery to navigator.id.request(), I get an explosion of errors like these:

E/memalloc(  109): /dev/pmem: No more pmem available
W/memalloc(  109): Falling back to ashmem
D/memalloc(  109): ashmem: Allocated buffer base:0x4df00000 size:1413120 fd:100
D/memalloc(  483): ashmem: Mapped buffer base:0x44000000 size:1413120 fd:34
D/memalloc(  109): /dev/pmem: Allocated buffer base:0x4af00000 size:614400 offset:2990080 fd:112
D/memalloc(  109): /dev/pmem: Allocated buffer base:0x4af00000 size:81920 offset:8065024 fd:148
D/memalloc(  109):  Out of PMEM. Dumping PMEM stats for debugging

This error does *not* occur with today's cut of mozilla-central, which apparently works just fine.  (tip of my m-c repo is @258292c9c929, dated Mon Nov 19 15:35:06 2012 +0000)

In each case, I am using gaia master from nov 19, @b2eb3e62

Comment 1

[Jed Parsons (use needinfo, please) [:jedp, :jparsons]]

Symptom: Page hangs and becomes unresponsive

Logcat appears to show no more output other than PMEM messages.

Comment 2

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

Running out of pmem isn't a fatal or destructive problem.  We just fall back on slower texturing.  I suspect there's something else going on here.

Comment 3

[Jed Parsons (use needinfo, please) [:jedp, :jparsons]]

(In reply to Chris Jones [:cjones] [:warhammer] from comment #2)
> Running out of pmem isn't a fatal or destructive problem.  We just fall back
> on slower texturing.  I suspect there's something else going on here.

Thanks, Chris.  I think you are right.

With today's latest build, I can no longer reproduce the symptoms.

I just tested with https://releases.mozilla.com/b2g/latest/unagi_2012-11-20.zip (it is now one day later) and while the "out of pmem" errors are still occurring, the persona logins are now working fine.  I've tested:

http://notoriousb2g.123done.org
http://people.mozilla.org/~jparsons/demo.html

If the pmem issue was a red herring, I can only hypothesize that some identity patch that was in m-c had not made the cut for latest.

I'm inclined to close this as invalid, but I'll let Jason make the call.

Jason, what do you want to do?

Comment 4

[Jason Smith [:jsmith]]

Works for me on 11/20 build.