Date: Wed, 19 Jan 2000 10:45:49 -0500 (EST) From: Zhihui Zhang <zzhang@cs.binghamton.edu> To: freebsd-hackers@freebsd.org Subject: Accessing user data from kernel Message-ID: <Pine.GSO.3.96.1000119104033.19800B-100000@sol.cs.binghamton.edu>
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When the kernel wants to access any user data, it either copies them into the kernel or maps them into kernel address space. Can anyone tell me the reasons why this is done? When a process enters the kernel mode, the page tables are not changed. I have taken this for granted for a long time without knowing the reasons. Thanks, -Zhihui To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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