Hi all,

for some weeks since using aufs2 i got a pretty strange effect.

I'm booting a gentoo x86 system and it's rootfs is now aufs.
The boot process is something like this:

mount /dev/sda1 /boot

#create aufs branch
mount -t tmpfs tmpfs /aufs_dynamic
mount -t aufs -o br:/aufs_dynamic/=rw none /aufs_vertex

#add overlay partition
mkdir -p /aufs_vertex/mnt/aufs/overlay
mount /dev/sda2 /aufs_vertex/mnt/aufs/overlay -o rw
mount -o remount,append: /aufs_vertex/mnt/aufs/overlay=rw /aufs_vertex

#add loop-image
mkdir -p /aufs_vertex/mnt/aufs/images/10-desktop.squash/
mount /boot/images/10-desktop.squash /aufs_vertex/mnt/aufs/images/10-
desktop.squash/ -o loop

mount -o remount,append:/aufs_vertex/mnt/aufs/images/10-desktop.squash/=rr 
/aufs_vertex

That works pretty nice so far, my system (fully copied into this squash-image) 
works without any modifications.

But when i start any kde4 application my cpu becomes busy and top shows pdflush 
with about 99% usage. I've no idea how to debug this. Kde 3.5 works fine and 
anything else which does not use kde4 works too.
Even when i kill the x server pdflush does not calm down.

I'd be very thankfull for some help on how to debug this issue. Btw, the same 
system with aufs (not aufs2) worked perfect.

System is a linux-2.6.29-gentoo-r1
aufs 2-standalone.tree-29-20090511 with no AUFS_BR_RAMFS, no AUFS_HINOTIFY  
and AUFS_DEBUG set.

There is no hint at Xorg.log, messages or dmesg.


Thanks for any hint :-)


Cheers Alex

-- 
Alexander Krause
Amtmann-Kästner-Platz 11
99091 Erfurt

Mail alexander.kra...@ed-solutions.de
Tel. +49 (361) 2156472
Mob. +49 (179) 4725826



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