Date: Tue, 8 Sep 2015 09:22:17 -0700 From: Sean Bruno <sbruno@freebsd.org> To: Mark R V Murray <mark@grondar.org> Cc: freebsd-current@freebsd.org Subject: Re: em broken on current amd64 Message-ID: <55EF0B39.30507@freebsd.org> In-Reply-To: <A9598479-1AA1-4FDB-82BC-9918B647B49F@grondar.org> References: <1B3BC636-6765-4478-AAE0-122E6904276E@pozo.com> <70759B1C-6685-4EF9-BC65-52590ABD398E@gmail.com> <63EACBE5-F82A-47D9-BA9A-E95D0E6AE80D@FreeBSD.org> <55EE2153.1050704@freebsd.org> <A9598479-1AA1-4FDB-82BC-9918B647B49F@grondar.org>
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>>> >>> I’m also seeing breakage with the em0 device; this isn’t a kernel >>> hang, it is a failure to move data after about 10-15 minutes. The >>> symptom is that my WAN ethernet no longer moves traffic, no pings, >>> nothing. Booting looks normal: >>> >>> em0: <Intel(R) PRO/1000 Network Connection 7.4.2> port >>> 0x30c0-0x30df mem 0x50300000-0x5031ffff,0x50324000-0x50324fff irq >>> 20 at device 25.0 on pci0 em0: Using an MSI interrupt em0: Ethernet >>> address: 00:16:76:d3:e1:5b em0: netmap queues/slots: TX 1/1024, RX >>> 1/1024 >>> >>> Fixing it is as easy as … >>> >>> # ifconfig em0 down ; service ipfw restart ; ifconfig em0 up >>> >>> :-) >>> >>> I’m running CURRENT, r287538. This last worked of me a month or so >>> ago at my previous build. >>> >>> M >>> >> >> >> Just so I'm clear, the original problem reported was a failure to >> attach (you were among several folks reporting breakage). Is that fixed >> ? > > I did not report the failure to attach, and I am not seeing it as I don’t > think I built a kernel that had that particular failure. I am having the > “failure after 10-15 minutes” problem; this is on an em0 device. > > M > Hrm, that's odd. That sounds like a hole where interrupts aren't being reset for "reasons" that I cannot fathom. What hardware (pciconf -lv) does your system actually have? The em(4) driver doesn't identify components which is frustrating. sean
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