Date: Fri, 25 Nov 2005 21:12:04 +0000 From: Volcane <volcane.uk@gmail.com> To: freebsd-net@freebsd.org Subject: em driver woes Message-ID: <964bdb4d0511251312j10b21214hc8218aa6eadb3894@mail.gmail.com>
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I scanned through the archive and noticed a posting there about an interrupt storm on the em driver, I am not sure if my symptoms are related so I decided on a new thread. I first installed the 6.0-RELEASE using FTP install and everything was happy, I then CVSUP'd to RELENG_6 which had an em driver update a few hours ago. Did the world and kernel and booted, on the boot with the new kernel I noticed my network was dead. I could get the initial DHCP from my server but once it got an IP it wasn't working. Further investigation with tcpdump showed me a massive amount of arp requests for my gateway IP, with replies coming back to the card.=20 Output of 'arp -an' showed that the gateway ARP was indeed in the arp table so there shouldnt have been any reason for all the arp requests. At this point I investigated the driver version and found that the GENERIC from the installation media was: em0: <Intel(R) PRO/1000 Network Connection, Version - 2.1.7> port 0x4000-0x403fmem 0xd8000000-0xd801ffff irq 16 at device 10.0 on pci10 em0: Ethernet address: 00:14:85:08:60:c6 em0: Speed:N/A Duplex:N/A The em from the new -STABLE kernel was: em0: <Intel(R) PRO/1000 Network Connection Version - 3.2.18> port 0x4000-0x403fmem 0xd8000000-0xd801ffff irq 16 at device 10.0 on pci10 em0: [GIANT-LOCKED] em0: Ethernet address: 00:14:85:08:60:c6 Below is a diff from the config file I used to build -STABLE and the GENERIC config: < cpu I486_CPU < cpu I586_CPU 25c23 < ident GENERIC --- > ident WEB1 36d33 < options INET6 # IPv6 communications protocols 64a62,72 > options SMP # Symmetric MultiProcessor Kernel > options IPSEC > options IPSEC_ESP > options IPSEC_DEBUG > options IPSEC_FILTERGIF > options IPFIREWALL > options IPFIREWALL_VERBOSE > options IPFIREWALL_DEFAULT_TO_ACCEPT > options IPFIREWALL_FORWARD_EXTENDED Hope this helps anyone, for now I'm heading back to -RELEASE
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