(crossposting at http://talk.maemo.org/showthread.php?p=1308907)

For the next CSSU release perhaps either a soft control in settings or a hard limit to data transfer or priority to the internal EMMC flash memory.
I experience severe slowing up to to system crash and shutdown when:
-Transfer too many files over WiFi via SSH/SCP or a big fast download
-transfer too much data from the microSD or a flash drive over USB hostmode to /home/user/MyDocs
-trying to unzip large files
-big disc intensive operations such as apt-get upgrade with chroot Debian

I think it is the swap partition is brought int use to buffer but that is additional bandwidth to the EMMC where it just compounds the problem and everything bogs down when too much/unlimited disc access is permitted with no priority for system level access to non /home or swap partitions.

My wifes N900 came with a broken SD card slot and sometimes she needs to move a big chunk of files, she doesn't have the option of only using the emmc only in client mode where this problem doesn't come up. I find it annoying to have this big storage that cna only accept a few files at a time before locking the system sometimes even to the point of failure and automatic shutdown.