Bug 152607

Summary:	`cat /dev/port` crashes system
Product:	Gentoo Linux	Reporter:	Kaiting Chen <Phoenixfire159>
Component:	[OLD] Core system	Assignee:	Gentoo Kernel Bug Wranglers and Kernel Maintainers <kernel>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	jakub
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Other
Whiteboard:
Package list:		Runtime testing required:	---

Description Kaiting Chen 2006-10-23 16:22:09 UTC

Maybe you're just not supposed to do this, but I've never seen a dead crash like this on a Linux system. Try this. `su` to root and type `cat /dev/port`. At least it crashed my system.

Comment 1 Daniel Drake (RETIRED) gentoo-dev

2006-10-23 16:53:06 UTC

Not here, but is kinda stupid anyway. If you want port access you can use ioperm() and inb/outb, and even then you can screw your system with ease. If you believe this is a real bug and can reproduce it on the latest development kernel then you should report it to the Linux kernel mailing list.