Date: Tue, 24 Oct 2017 15:33:07 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 205706] Watchdog timeout on em driver under heavy traffic on a bridge configuration Message-ID: <bug-205706-2472-gRlxxMAfnQ@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-205706-2472@https.bugs.freebsd.org/bugzilla/> References: <bug-205706-2472@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=205706 Peter <enigma.algo@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |enigma.algo@gmail.com --- Comment #8 from Peter <enigma.algo@gmail.com> --- Same issue for me with the em0 driver. Kernel Version 11.0-RELEASE-p12 In the setup are two OpnSense firewalls (COTS PCs) back-2-back with an IPsec tunnel between. The error shows up immediately when traffic is generated on the LAN side(s) at the same time. I feed 64Byte Ethernet frames with an IXIA test generator. Packet rate is 1448000 pps. I believe its always the WAN side (on both PCs), the em driver hangs with following error: em0: Watchdog timeout Queue[0]-- resetting Interface is RUNNING and ACTIVE em0: TX Queue 0 ------ em0: hw tdh = 818, hw tdt = 777 em0: Tx Queue Status = -2147483648 em0: TX descriptors avail = 40 em0: Tx Descriptors avail failure = 17012 em0: RX Queue 0 ------ em0: hw rdh = 139, hw rdt = 139 em0: RX discarded packets = 0 em0: RX Next to Check = 140 em0: RX Next to Refresh = 139 Nothing will cure this problem unless I reboot. I also tried to play with mbufs but without success. pciconf -lvbc em0@pci0:1:0:0: class=0x020000 card=0xa01f8086 chip=0x10d38086 rev=0x00 hdr=0x00 vendor = 'Intel Corporation' device = '82574L Gigabit Network Connection' class = network subclass = ethernet bar [10] = type Memory, range 32, base 0xf7ec0000, size 131072, enabled bar [14] = type Memory, range 32, base 0xf7e00000, size 524288, enabled bar [18] = type I/O Port, range 32, base 0xe000, size 32, enabled bar [1c] = type Memory, range 32, base 0xf7ee0000, size 16384, enabled cap 01[c8] = powerspec 2 supports D0 D3 current D0 cap 05[d0] = MSI supports 1 message, 64 bit cap 10[e0] = PCI-Express 1 endpoint max data 256(256) NS link x1(x1) speed 2.5(2.5) ASPM disabled(L0s/L1) cap 11[a0] = MSI-X supports 5 messages, enabled Table in map 0x1c[0x0], PBA in map 0x1c[0x2000] ecap 0001[100] = AER 1 0 fatal 0 non-fatal 1 corrected ecap 0003[140] = Serial 1 6805caffff5fda26 Cheers, Peter -- You are receiving this mail because: You are the assignee for the bug.
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