ARM FCSE - random programs segfaults
trimarchi at gandalf.sssup.it
Fri Mar 26 18:37:50 CET 2010
> I've compiled latest 2.6.29-andy-tracking kernel with ARM Fast Context
> Switch Extension patch , using gta02_moredrivers_defconfig kernel
> config and CONFIG_ARM_FCSE=y and CONFIG_ARM_FCSE_BEST_EFFORT=y
> options. I've tested this kernel with latest SHR-unstable. System with
> FCSE enabled is really faster. However some (mostly Python)
> applications randomly segfaults during loading. But when
> application loads properly, it runs rock stable.
> Seems, it isn't related to 32 MB virtual memory limit and best effort
> mode, because applications running above this limit runs properly.
> I also tested FCSE on Qt Moko v16 with nodebug v17 kernel, but Qte
> always restarts when loading desktop.
> ARM FSCE support is already included in Android on FreeRunner
> distributon kernel. I like to see this included also in Openmoko
> distributions kernels, when will be stable and ready.
I have readed your email, but I don't have time right now to take a look.
I'm going to add the original author of the patches. Maybe he can give
> Martin 'Martix' Holec
>  http://gitorious.org/android-on-freerunner/kernel_openmoko/commit/1623424a807210d761b829253c93cbc45fd74dba?diffmode=inline
>  http://git.openmoko.org/?p=kernel.git;a=commit;h=973a41fce60e5f6edfcf0eaf94056a57eee65e16
>  http://firstname.lastname@example.org/strace.log
>  http://email@example.com/strace2.log
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