744300 - B2G SMS database initialization freezes I/O thread

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: RIL, defect)

Description

[Philipp von Weitershausen [:philikon]]

+++ This bug was initially created as a clone of Bug #743635 +++

I erroneously attributed the freeze we're seeing in the Gonk ICS emulator to the off-mainthread access of the Directory Service in IndexedDB. Turns out, that patch -- while still useful -- doesn't fix the freeze.

Comment 1

[Philipp von Weitershausen [:philikon]]

Seeing this on the Akami (running Gingerbread), too.

Comment 2

[Shian-Yow Wu [:swu]]

I can reproduce this issue on Lenovo phone, too.

When the issues reproduced, one thread stuck in the while loop in EnsureOriginIsInitialized() of IndexedDatabaseManager.cpp.

And the SMS & Settings related files keep been updated in IndexedDB directory.

# pwd
/data/b2g/mozilla/82ve6zij.default/indexedDB/chrome
# ls -l
drwxr-xr-x    1 root     root          2048 Jan 19 15:30 226660312ssm
-rw-------    1 root     root        524288 Jan 19 15:39 226660312ssm.sqlite
drwxr-xr-x    1 root     root          2048 Jan 19 15:38 2588645841ssegtnti
-rw-------    1 root     root        524288 Jan 19 15:39 2588645841ssegtnti.sqlite
-rw-------    1 root     root         33288 Jan 19 15:39 2588645841ssegtnti.sqlite-journal

Have to rm files in this directory to recover.

Comment 3

[Philipp von Weitershausen [:philikon]]

This is the `while` loop: http://mxr.mozilla.org/mozilla-central/source/dom/indexedDB/IndexedDatabaseManager.cpp#698

This problem sounds familiar: bug 727803.

Comment 4

[Shian-Yow Wu [:swu]]

This bug looks similar to bug 727803, but seems a different case.  It's not always happening, but once happens, it keeps happening next time.

Since we know it's stuck in the while loop, next is to dig deeper into the loop to see how it happens and find a way to fix it.

Looking forward to someone who familiar to this code can see it.

Comment 5

[Shian-Yow Wu [:swu]]

After discussion with mwu, it should be same problem as bug 727803(shouldn't it already be fixed on Akami?).  And mwu is looking to fix it at Gecko side(bug 749661).

Comment 6

[BMO Automation]

Firefox OS is not being worked on