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Bug 152607

Summary: `cat /dev/port` crashes system
Product: Gentoo Linux Reporter: Kaiting Chen <Phoenixfire159>
Component: [OLD] Core systemAssignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers <kernel>
Severity: normal CC: jakub
Priority: High    
Version: unspecified   
Hardware: All   
OS: Other   
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.