Hi there, I've got a problem where lots of io to the console seems to break something in the kernel, resulting in a segfault, along with a kernel error. I dove into it, and found that it's related to wait queue stuff. I turned on the wait queue debugging, and got the following, just prior to things going off the deep end. bad magic 802ccb24 (should be 802ccb2c), kernel BUG at sched.c:729! Is there some tutorial on this stuff somewhere (besides reading the code -- I'm doing that now!) Has this stuff changed a great deal since 2.4.5 (when this code last worked correctly)? thanks, rob -- Rob Lembree Metro Link Incorporated 29 Milk St. lembree@metrolink.com Nashua, NH 03064-1651 http://www.metrolink.com Phone: 954.660.2460 Alternate: 603.577.9714 PGP: 1F EE F8 58 30 F1 B1 20 C5 4F 12 21 AD 0D 6B 29