The machine was working fine for 24++hrs. then suddenly this: --- begin --- (several) putc to a clist with no reservered cblocks ucom0: read start failed Fatal trap 12: page fault while in kernel mode fault virtual address = 0x4c fault code = supervisor read, page not present instruction pointer = 0x8:0xc0478585a5 stack pointer = 0x10:0xc8c95a08 frame pointer = 0x10:0xc8c95a24 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 31031 (mgetty) --- end --- devices used: ATEN USB->Serial adapters (uplcom) connected to serial modems. Machine is being used for remote access. Nothing unusual in the kernel this time. Help! Dennis -- Mars Trading 9620 Kamagong St., Makati, Manila, Philippines Phone: (632) 8952241 FAX: (632) 8996124 email: marstrade@gmail.com