Date: Sun, 06 Jan 2002 00:04:08 +0000 From: David Malone <dwmalone@maths.tcd.ie> To: freebsd-net@freebsd.org Subject: Bge driver problems. Message-ID: <200201060004.aa73043@salmon.maths.tcd.ie>
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We've been playing with some Dell 2550 machines and ran into a problem with the bge driver. We have a machine which was recieving a continious stream of NFS requests. The machine is completey stable when we use the fxp driver and don't add the bge driver to the kernel. If we add the bge driver then we see the following erratically: 1) NMI just after the driver probes the card. 2) Freezes between the first and second probe message for the phy. 3) Freezes during fscking. 4) Freezes immediately after ifconfiging up. The lockups seem really solid - we can't break to the debugger using a serial console when they occur. If the machine manages to boot up past ifconfig (it manages this about 1 time in 10) then the machine seems to run quite happly for several days until it eventually locks up again. We suspect that reproducing this requires a constant stream of packets while the card is being initialised. We did also try breaking out of the lockups by programing the APIC to produce a NMI on keyboard interrupts. Unfortunately the lockups seem so solid that the NMI doesn't get through. I know Matt Dillon has seen some lockups at ifconfig time and was wondering if anyone else has seen similar problems? I dunno who has access to programming information for this chip, but I suspect something about how the hardware is being reset can't be quite right. David. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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