With the following setup: Gaia-Rev 8d4d0bb88f61e72554ab68e51282f08e1be536b6 Gecko-Rev https://hg.mozilla.org/mozilla-central/rev/2ddec2dedced Build-ID 20150723010205 Version 42.0a1 Device-Name flame FW-Release 4.4.2 FW-Incremental eng.cltbld.20150527.043015 FW-Date Wed May 27 04:30:24 EDT 2015 Bootloader L1TC000118D0 We see in the logcat the following error: /Gecko ( 2947): IPDL protocol error: Handler for SetCookieString returned error code I/Gecko ( 2947): I/Gecko ( 2947): ###!!! [Parent][DispatchAsyncMessage] Error: (msgtype=0x3E0003,name=PCookieService::Msg_SetCookieString) Processing error: message was deserialized, but the handler returned false (indicating failure) I/Gecko ( 2947): I/Gecko ( 2947): [Parent 2947] WARNING: waitpid failed pid:3568 errno:10: file /builds/slave/b2g_m-cen_flm-kk_eng_ntly-0000/build/gecko/ipc/chromium/src/base/process_util_posix.cc, line 267 I/Gecko ( 2947): [Parent 2947] WARNING: pipe error (273): Connection reset by peer: file /builds/slave/b2g_m-cen_flm-kk_eng_ntly-0000/build/gecko/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 459 I/Gecko ( 2947): I/Gecko ( 2947): ###!!! [Parent][MessageChannel] Error: (msgtype=0x200081,name=PBrowser::Msg_Destroy) Channel error: cannot send/recv I/Gecko ( 2947): Seems that is an error related to the cookies. In contacts we use a cookie to get/store the value for ordering the contacts list. Is one of the first things that we do, it's in the critical path, and seems that's the reason why the app is failing to start. Opening against contact, but asking for a regression window, we think the error could be in gecko side.

Confirmed with Francisco, the issue always happens. [Blocking Requested - why for this release]: Smoketest blocker.

Maybe somehow related with the landing of bug 1165263?

The changes for Bug 1139953 seem to have caused this issue. Fx Team-inbound Regression Window Last Working Environmental Variables: Device: Flame 2.5 BuildID: 20150721221151 Gaia: 84c3bf622e211046d905803b34de5d331761f22d Gecko: e05387dd6b04 Version: 42.0a1 (2.5) Firmware Version: v18D-1 User Agent: Mozilla/5.0 (Mobile; rv:42.0) Gecko/42.0 Firefox/42.0 First Broken Environmental Variables: Device: Flame 2.5 BuildID: 20150722002851 Gaia: 84c3bf622e211046d905803b34de5d331761f22d Gecko: ce485b16a186 Version: 42.0a1 (2.5) Firmware Version: v18D-1 User Agent: Mozilla/5.0 (Mobile; rv:42.0) Gecko/42.0 Firefox/42.0 Last Working gaia / First Broken gecko - Issue DOES occur Gaia: 84c3bf622e211046d905803b34de5d331761f22d Gecko: ce485b16a186 First Broken gaia / Last Working gecko - Issue does NOT occur Gaia: 84c3bf622e211046d905803b34de5d331761f22d Gecko: e05387dd6b04 Gecko Pushlog: http://hg.mozilla.org/integration/fx-team/pushloghtml?fromchange=e05387dd6b04&tochange=ce485b16a186

Blake, can you take a look at this please? Looks like the landing for bug 1139953 might be the cause here. This is a smoke test blocker. Can we get this landing backed out?

I landed this on inbound with r=gwagner. Josh, would you mind doing a post-facto review? The problem is that the hostURI on b2g was an app:// URI and we were failing to create the channel. While I was here, I made failure to create the dummy channel non-fatal, since it really isn't important to pass the 'are we private browsing' in for this one case.

I've updated to latest and am pleased to say it's fixed for me too.

This issue is verified fixed in the latest Spark 2.5 build. Contacts app opens and functions correctly. Environmental Variables: Device: Aries 2.5 Build ID: 20150725011637 Gaia: ade1ef5249cfab921e00ed67b30f3d03c2e24b5e Gecko: d3228c82badd Gonk: 2916e2368074b5383c80bf5a0fba3fc83ba310bd Version: 42.0a1 (2.5) Firmware Version: D5803_23.1.A.1.28_NCB.ftf User Agent: Mozilla/5.0 (Mobile; rv:42.0) Gecko/42.0 Firefox/42.0

Moving the bug to the component where the regression came from.

The report sent on the same day state these tests caught the issue: * test_add_new_contact * test_edit_contact * test_sms_contact * test_add_photo_to_contact