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=3D205706 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 te= st 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 =3D 818, hw tdt =3D 777 em0: Tx Queue Status =3D -2147483648 em0: TX descriptors avail =3D 40 em0: Tx Descriptors avail failure =3D 17012 em0: RX Queue 0 ------ em0: hw rdh =3D 139, hw rdt =3D 139 em0: RX discarded packets =3D 0 em0: RX Next to Check =3D 140 em0: RX Next to Refresh =3D 139 Nothing will cure this problem unless I reboot. I also tried to play with m= bufs but without success. pciconf -lvbc em0@pci0:1:0:0: class=3D0x020000 card=3D0xa01f8086 chip=3D0x10d38086 rev=3D= 0x00 hdr=3D0x00 vendor =3D 'Intel Corporation' device =3D '82574L Gigabit Network Connection' class =3D network subclass =3D ethernet bar [10] =3D type Memory, range 32, base 0xf7ec0000, size 131072, enabled bar [14] =3D type Memory, range 32, base 0xf7e00000, size 524288, enabled bar [18] =3D type I/O Port, range 32, base 0xe000, size 32, enabled bar [1c] =3D type Memory, range 32, base 0xf7ee0000, size 16384, enabled cap 01[c8] =3D powerspec 2 supports D0 D3 current D0 cap 05[d0] =3D MSI supports 1 message, 64 bit=20 cap 10[e0] =3D PCI-Express 1 endpoint max data 256(256) NS link x1(x1) speed 2.5(2.5) ASPM disabled(L0s/L1) cap 11[a0] =3D MSI-X supports 5 messages, enabled Table in map 0x1c[0x0], PBA in map 0x1c[0x2000] ecap 0001[100] =3D AER 1 0 fatal 0 non-fatal 1 corrected ecap 0003[140] =3D Serial 1 6805caffff5fda26=20 Cheers, Peter --=20 You are receiving this mail because: You are the assignee for the bug.=
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