Date: Fri, 15 Oct 1999 18:37:57 -0700 (PDT) From: mjacob@feral.com To: FreeBSD-gnats-submit@freebsd.org Subject: kern/14355: guard page needed for UP-mode kernel stack. Message-ID: <199910160137.SAA07619@semuta.feral.com>
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>Number: 14355 >Category: kern >Synopsis: perhaps a guard page needed for UP-mode kernel stack? >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: change-request >Submitter-Id: current-users >Arrival-Date: Fri Oct 15 22:50:04 PDT 1999 >Closed-Date: >Last-Modified: >Originator: Matthew Jacob >Release: FreeBSD 4.0 10/15/99 >Organization: Feral Software >Environment: 2xPPro 180Mhz. >Description: I had my kernel stack corrupted during the config process. I'm not sure whether the second processor had launched yet. The stack would get corrupted and the framepointer would get wiped. The ultimate fix was to remove the usage of a 2KB automatic variable. It seems to me that there should have been some kind of warning about this. >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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