Date: Thu, 31 Mar 2005 11:12:14 -0500 From: Gary Mu1der <gmulder@infotechfl.com> To: Vivek Khera <vivek@khera.org> Cc: freebsd-amd64@freebsd.org Subject: Re: Tyan k8sr lockups Message-ID: <424C215E.5080201@infotechfl.com> In-Reply-To: <3f9aa5aef19c41837cce1563e2c97a21@khera.org> References: <f0111a98c01333b3c306c81d10294de4@khera.org> <Pine.SOC.4.61.0503300229560.3181@tea.blinkenlights.nl> <3f9aa5aef19c41837cce1563e2c97a21@khera.org>
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All, Well I can just now reliably hang (no panic, have to reset) my shiny new AMD64 dual processor box (2 x Opteron 246, Tyan Thunder K8S PRO, 6GB, Adaptec 2200S) with a simple dd of /dev/mem: $ uname -a FreeBSD d10.bidx.com 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Fri Nov 5 04:19:18 UTC 2004 root@harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386 $ dd if=/dev/mem of=/dev/null bs=1024k (hang after about 5 seconds of watching it via top) How do I force a kernel dump or get other diagnostics? The keyboard doesn't seem to respond. Thought it might be due to the fact that I wasn't using a AMD64 kernel, but the same command crashes the following: $ uname -a FreeBSD d10.bidx.com 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Fri Nov 5 03:50:01 UTC 2004 root@fanboy.samsco.home:/usr/obj/usr/src/sys/GENERIC amd64 I ran memtest+ over night for 16 hours last night with no reported memory errors. Gary
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