789807 - Gecko crashes with Siyah kernel in SGS2

Status: RESOLVED FIXED

(Firefox OS Graveyard :: General, defect)

Description

[Juan Gomez [:_AtilA_] (CET/CEST)]

Gecko crashes with SIGSEGV in dlfree() (bionic) few seconds after showing initial lock screen. I couldn't get the stack trace to see where exactly explodes cause gdb reports a stack corrpution.

It's being happening since I installed Siyha kernel (the one used for dual-booting in our SGS2, it's recommended in the wiki page[1]).

I checked that using the kernel image from the build system (device/samsung/galaxys2/kernel)fixes the problem.

Real dual-booting is an excellent tool for those like me that uses their own phone to contribute to the project.


[1] https://developer.mozilla.org/en-US/docs/Mozilla/Boot_to_Gecko/Dual_boot_of_B2G_and_Android_on_SGS2

Comment 1

[Michael Wu [:mwu]]

I haven't checked but the kernel probably needs to be rebuilt with a rootfs that has an updated init.b2g.rc.

Comment 2

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

Specifically, you need to ensure that either b2g is launched with this preloaded lib

export LD_PRELOAD=/system/b2g/libmozglue.so

or, that it's built with --disable-jemalloc (put that in your mozconfig).

Comment 3

[Juan Gomez [:_AtilA_] (CET/CEST)]

Ok, I compiled Gecko with --disable-jemalloc, and it worked!
Just type: DISABLE_JEMALLOC=1 ./build.sh gecko

:)

Comment 4

[Juan Gomez [:_AtilA_] (CET/CEST)]

Ok, this is not a fix, just a workaround.
Michael Wu tolds me that init.b2g.rc need to be fixed. 
I'm on it.

Comment 5

[Juan Gomez [:_AtilA_] (CET/CEST)]

So I updated Gokhanmoral's Siyah kernel init.rc scripts and made a pull-request, he marged it, so I hope he uploads new kernel soon. In the meantime, anyone can clone both: https://github.com/gokhanmoral/initramfs3 and https://github.com/gokhanmoral/siyahkernel3 and generates the kernel by himself.
There's a ./build_kernel.sh script that will do the job, it only needs to be modified to point to the toolchain.

Comment 6

[Juan Gomez [:_AtilA_] (CET/CEST)]

Ok, new release of Siyah kernel (5.0) is out! [1]
Now b2g service launches properly, so we can close this bug.
Maybe the doc on MDN should be updated.