Date: Mon, 13 Jan 2020 14:14:11 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 243319] Panicked laptop & local network ARP flood Message-ID: <bug-243319-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=243319 Bug ID: 243319 Summary: Panicked laptop & local network ARP flood Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: kevans@freebsd.org Hi, Running on an X220 with em0 (Intel 82579LM), laptop panicking results in an absolute flood of ARP requests: 07:55:53.025687 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025708 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025729 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025750 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025783 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025825 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025850 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025872 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025894 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025915 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025937 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025959 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025980 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.026001 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.026022 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.026044 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.026065 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 root@gemini:~# tcpdump -r re0.pcap | grep -i 'arp, request' | grep '7:55:53' | wc -l reading from file re0.pcap, link-type EN10MB (Ethernet) 17424 17,000 in that particular second alone; all of the boxes on the local network segment end up with networking hosed until I reboot/remove the offending laptop. -- You are receiving this mail because: You are the assignee for the bug.help
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