Date: Wed, 19 Feb 2014 20:39:05 -0700 From: Brett Glass <brett@lariat.net> To: questions@freebsd.org Subject: Instability in re driver? Message-ID: <201402200339.UAA09587@mail.lariat.net>
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Everyone: We've been experiencing occasional crashes on heavily loaded machines that have Realtek gigabit Ethernet ports built into their motherboards. This evening, at a time of peak usage, one of the machines showed the log messages Feb 19 18:44:14 <kern.crit> server kernel: re0: watchdog timeout Feb 19 18:44:14 <kern.notice> server kernel: re0: link state changed to DOWN Feb 19 18:44:18 <kern.notice> server kernel: re0: link state changed to UP even though we did not take the port down or up. A few minutes later, the entire machine locked up solid and required a power cycle. Here are the boot time messages from the same server (as I rebooted it following the crash): Feb 19 19:08:22 <kern.crit> server kernel: re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F PCIe Gigabit E thernet> port 0xd800-0xd8ff mem 0xfeadf000-0xfeadffff,0xfdefc000-0xfdefffff irq 16 at device 0.0 on pci1 Feb 19 19:08:22 <kern.crit> server kernel: re0: Using 1 MSI-X message Feb 19 19:08:22 <kern.crit> server kernel: re0: Chip rev. 0x28000000 Feb 19 19:08:22 <kern.crit> server kernel: re0: MAC rev. 0x00000000 Feb 19 19:08:22 <kern.crit> server kernel: miibus0: <MII bus> on re0 Feb 19 19:08:22 <kern.crit> server kernel: rgephy0: <RTL8169S/8110S/8211 1000BASE-T media interfa ce> PHY 1 on miibus0 Feb 19 19:08:22 <kern.crit> server kernel: rgephy0: none, 10baseT, 10baseT-FDX, 10baseT-FDX-flow , 100baseTX, 100baseTX-FDX, 100baseTX-FDX-flow, 1000baseT, 1000baseT-master, 1000baseT-FDX, 1000base T-FDX-master, 1000baseT-FDX-flow, 1000baseT-FDX-flow-master, auto, auto-flow This problem is occurring on several servers built with the same motherboard/chipset. Are there known bugs, hangs, or memory leaks that might have led to this condition? Are there recent fixes which address it? (The machines that are crashing are all running the latest security patch level of FreeBSD 9.1-RELEASE.) --Brett Glass
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