New SHR-unstable images with 2.6.32 kernel

Martin Jansa martin.jansa at
Sun Jun 27 08:58:18 CEST 2010

After hopefully lucky incident we have finally switched to new kernel.
It's based on and has DRM/KMS enabled.

* New images are built with kernel and all needed changes are already included.
* Images doesn't have udevd installed by default (using devtmpfs), which makes 
  it boot about twice as fast as before (less then 1 min to PIN dialog). But 
  it also won't mount your uSD automatically (it was blacklisted before, but 
  removing it from blacklist won't help now).
* Included packages contains latest stuff like xserver-1.9 (RC3), foxtrotgps 
  and tangogps 0.99.4, QT 4.7.0-beta1 and QML enabled navit.

* Distribution revision was changed in OE, this means that every package 
  installed from shr-unstable feeds will be upgraded during next opkg upgrade 
  (so be sure that you have enough time and space in /var partition). 
  Consider flashing new image, it can be faster and safer in the end.
* Used GCC was upgraded from version 4.4.4 to 4.5 (svn revision 160764 from 
  gcc-4.5-branch, because released 4.5.0 has few issues on ARM targets).
* New GCC brings LTO optimizations, which can give us 30% speedup in some cases,
  see benchmark results [1].
  LTO is not enabled by default yet.

* New kernel has some issues, so please try first (on another uSD partition), 
  before upgrading your daily-phone-partition.
* The kernel is bigger than 2MB so if you're using u-boot, update your 
  environment according to wiki entry [2].
* With slower uSD you can see unknown-block-device while booting. Flash newer 
  Qi from SHR [3] it is using rootwait instead of rootdelay=1. For u-boot 
  increase rootdelay or use rootwait.
* Sometimes (and only on some devices) it can show all white (looks like old 
  WSoD, but it's without death). Suspend/Resume should fix this.
* Vibrations are too weak.

* See OE changelog [4] and SHR changelog [5].


Martin 'JaMa' Jansa    jabber: Martin.Jansa at

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