Date: Tue, 31 Jul 2001 15:38:20 -0700 (PDT) From: John Baldwin <jhb@FreeBSD.org> To: Charles Randall <crandall@matchlogic.com> Cc: "smp@freebsd.org" <smp@FreeBSD.org> Subject: RE: Dell 1550 SMP crash Message-ID: <XFMail.010731153820.jhb@FreeBSD.org> In-Reply-To: <5FE9B713CCCDD311A03400508B8B30130828F20A@bdr-xcln.corp.matchlogic.com>
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On 31-Jul-01 Charles Randall wrote: > From: John Baldwin [mailto:jhb@FreeBSD.org] >>Ah, didn't see the type 29 before. Hrm, there aren't really 29 traps >>according to trap.c, the highest is 28, which is a machine check. Let me > go >>look around.. :( >> >>Oh, ok. type 28 is a machine check which is INT 18. INT 19 on the P3 is a > new >>exception we don't handle: SIMD Floating-Point exception. I thought we had >>some SIMD code floating around somewhere though, but not in 4.x. Peter? >> >>Granted, I don't know why a mov would generate that. :( >>Only SSE and SSE2 instructions are supposed to generate that. > > Searching the archives for "type 29", this looks like a problem that James > FitzGibbon reported in May 2000 with a Dell PowerEdge 2450. Drew Eckhardt > posted a response and then the thread basically died. > > Has anyone with the Dell 1550 or 2450 seen this before? Well, it may not actually be a SIMD trap. Is this reproducible, and is it always at the same place? Peter Wemm (I think) added some code to handle SIMD traps in the kernel recently. I'll try and backport that to 4.x and let you try it out though to see if it helps any. > Charles -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-smp" in the body of the message
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