[Gta04-owner] [hwvalidation] cpu at 100% on boot (multiboot)

[Dr. H. Nikolaus Schaller]

Hi Boudewijn,

Am 06.10.2012 um 00:56 schrieb Boudewijn:

> Hi list,
>  
> I got the HW validation distro on p5 of my SD card, and use the distro-switcher in QtMoko to boot it. 
>  
> Upon landing on the lxde-desktop, the CPU climbs to 100% within a few seconds after displaying the wallpaper and widgets ("clean install", so only the CPU monitor). I can see the CPU climbing, because the widget starts black and becomes green all over quite quickly. Perhaps the CPU is already close to 100% while starting the widget, and uses last bits of processing to update the rectangle to become all green over time.

I remember that we ran into this problem when bringing up the first GTA04 boards. If I remember correctly, it has something to do with the X server's input devices.
So the xorg.conf has been modified to ensure that the touch screen is seen only once in the list of Xinput drivers.
Otherwise something in the X-Server goes into a busy waiting loop.

>  
> I suspect there's a kernel mismatch, since I just extracted the tarball to this partition, using QtMoko's boot partition. One of the things not available, is USB (my laptops registers the phone on boot, but nothing after that)

This may not work with a different kernel that presents the touch screen driver differently to user space.

>  
> How can I mix the two? I recall this being discussed before, but can't find the message anymore. Would it suffice to copy the right files to /boot of the HW validation distro?
>  
> Here's the partition table:
>  
> Disk /dev/mmcblk0: 8270 MB, 8270118912 bytes
> 4 heads, 16 sectors/track, 252384 cylinders
> Units = cylinders of 64 * 512 = 32768 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0x00000000
>  
>         Device Boot      Start         End      Blocks   Id  System
> /dev/mmcblk0p1   *           3        2048       65472    c  W95 FAT32 (LBA)
> /dev/mmcblk0p2            2049       67584     2097152   83  Linux
> /dev/mmcblk0p3           67585      133120     2097152   83  Linux
> /dev/mmcblk0p4          133121      252384     3816448    5  Extended
> /dev/mmcblk0p5          133153      198688     2097152   83  Linux
> /dev/mmcblk0p6          198721      215104      524288   82  Linux swap / /dev/mmcblk0p7          215137      252384     1191936    b  W95 FAT32
>  
> p1 = boot
> p2 = QtMoko
> p3 = SHR
> p5 = HW validation
> p7 might be(come) QtMoko docs
>  
> the contents in p1 are from QtMoko:
>  
> root at neo:/media/hwval/boot# ls /media/p1/ -lah
> total 3.5M
> drwxr-xr-x 3 root root 1.0K Jan  1  1970 .
> drwxr-xr-x 7 root root 4.0K Sep 30 00:16 ..
> -rwxr-xr-x 1 root root  24K Sep 30 00:54 MLO
> -rwxr-xr-x 1 root root 9.1K Sep 30 00:54 boot.scr
> -rwxr-xr-x 1 root root  889 Sep 30 00:54 bootargs.scr
> drwxr-xr-x 2 root root  512 Oct  6 00:31 gta04-init
> -rwxr-xr-x 1 root root 221K Sep 30 00:54 menu.rgb16z
> -rwxr-xr-x 1 root root  39K Sep 30 00:54 splash.rgb16z
> -rwxr-xr-x 1 root root 264K Sep 30 00:54 u-boot.bin
> -rwxr-xr-x 1 root root 2.9M Oct  6 00:48 uImage
> -rwxr-xr-x 1 root root 9.1K Sep 30 00:54 user.scr
> -rwxr-xr-x 1 root root  15K Sep 30 00:54 x-load.flash
>  
>  
> There's nothing in /boot of the HW validation distro:
> root at neo:/media/hwval/boot# ls -hal
> total 8.0K
> drwxr-xr-x  2 root root 4.0K Jun 19  2010 .
> drwxr-xr-x 24  502  502 4.0K Oct  6 00:32 ..
> root at neo:/media/hwval/boot# 
>  
>  
> Thanks in advance and best regards,
>  

BR,
Nikolaus


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