Date: Wed, 02 Sep 2015 19:16:40 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 200221] em0 watchdog timeout under load Message-ID: <bug-200221-2472-0qJgWzVchy@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-200221-2472@https.bugs.freebsd.org/bugzilla/> References: <bug-200221-2472@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200221 --- Comment #18 from anthony@ury.org.uk --- Unfortunately, the server experienced a watchdog timeout this morning : Sep 2 07:39:49 urybsod kernel: em0: Watchdog timeout Queue[0]-- resetting Sep 2 07:39:49 urybsod kernel: Interface is RUNNING and ACTIVE Sep 2 07:39:49 urybsod kernel: em0: TX Queue 0 ------ Sep 2 07:39:49 urybsod kernel: em0: hw tdh = 247, hw tdt = 495 Sep 2 07:39:49 urybsod kernel: em0: Tx Queue Status = -2147483648 Sep 2 07:39:49 urybsod kernel: em0: TX descriptors avail = 771 Sep 2 07:39:49 urybsod kernel: em0: Tx Descriptors avail failure = 237 Sep 2 07:39:49 urybsod kernel: em0: RX Queue 0 ------ Sep 2 07:39:49 urybsod kernel: em0: hw rdh = 344, hw rdt = 343 Sep 2 07:39:49 urybsod kernel: em0: RX discarded packets = 0 Sep 2 07:39:49 urybsod kernel: em0: RX Next to Check = 344 Sep 2 07:39:49 urybsod kernel: em0: RX Next to Refresh = 343 Sep 2 07:39:49 urybsod kernel: em0: Link is Down Sep 2 07:39:49 urybsod kernel: em0: link state changed to DOWN Sep 2 07:39:53 urybsod kernel: em0: Link is up 1000 Mbps Full Duplex Sep 2 07:39:53 urybsod kernel: em0: link state changed to UP Sep 2 07:39:53 urybsod devd: Executing '/etc/rc.d/dhclient quietstart em0' So these patches appear to be improving stability, as this is the only occurrence in 13 days of uptime, compared to nearly every day previously. I should reiterate what state this kernel is in : sys/dev/e1000 is at 10-STABLE@HEAD with CURRENT@286381, CURRENT@285879 patched. This required some manual patching. Diff of e1000 to 10-STABLE attached. Merged r274043 and r274704 from 10-STABLE. I've not yet encountered a panic, but I'll apply 287330 to be on the safe side. -- You are receiving this mail because: You are the assignee for the bug.
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