Thanks for all your help, I can now confirm, that if i use a MEM=256 instead of MEM=512 it works fine without crashes when i'm producing files larger than 256M with dd!
So I think, I have to give an entry in fstab for /dev/shm and have to explicitly define the size of /dev/shm to an equal value as i did to start uml linux with mem parameter. con=pty is my new change, when i run uml linux to get messages of my system. hope this can help other guys, which have same problems expirienced. thanx & bye, Herbert Am Sonntag, den 29.04.2007, 19:38 -0400 schrieb Jeff Dike: > On Sun, Apr 29, 2007 at 11:08:59PM +0200, Blaisorblade wrote: > > Recent uml kernels (if the console can be seen, I complained about > > con=null) > > display a specific error message saying that host memory was exhausted > > Not that recently - it's been there for quite a while. > > But even more recently, UML will dump core on a panic (rlimits > permitting), so even if there's something crazy like con=null, you can > gdb the core file and look at the contents of log_buf (the symbol > table permitting). > > Jeff > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
