Date: Fri, 05 May 2000 22:53:00 -0600 From: Warner Losh <imp@village.org> To: Alfred Perlstein <bright@wintelcom.net> Cc: Jin Guojun <jin@george.lbl.gov>, hackers@FreeBSD.ORG Subject: Re: Can NMI drop a hanging FreeBSD kernel into DDB? Message-ID: <200005060453.WAA59241@harmony.village.org> In-Reply-To: Your message of "Fri, 05 May 2000 12:20:29 PDT." <20000505122029.C29830@fw.wintelcom.net> References: <20000505122029.C29830@fw.wintelcom.net> <200005051831.LAA25307@george.lbl.gov>
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In message <20000505122029.C29830@fw.wintelcom.net> Alfred Perlstein writes: : hit ctrl+alt+esc on the console, or send a serial break if using : a serial console, make sure you have BREAK_TO_DEBUGGER if you're : using a serial console. Sometimes this isn't enough. I use the NMI trick often. However, it won't work if you are hacking pci hardware and manage to hang the PCI bus. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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