HY HY I tried 2.4.5-ac8 which includes the newest s390-Patches from IBM and I found out, that it is possible to access shared memory but when you free it, the machine crashs. The output on console seems to come from __swap_free in swapfile.c: It was a mixture of swap_free: Trying to free nonexistent swap-page swap_free: offset exceeds max If you need detailed order of those messages I could reproduce a crash for you. ;-) I reproduced it with 2.4.5 and 2.4.5-ac8 but I never tested 2.4.4, but having a quick look at the code it saw that shm changed from 2.4.3 to 2.4.4. 2.4.3 runs very stable on my architecture. For everything else 2.4.5-ac8 seems to run quite fine on zSerie. BYtE Oli +++LINUX++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++Manchmal stehe ich sogar nachts auf und installiere mir eins....+++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/