Date: Fri, 20 Nov 2020 10:21:18 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 251267] iflib/em Intel I217-LM NIC: sporadic connection loss 12-STABLE Message-ID: <bug-251267-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D251267 Bug ID: 251267 Summary: iflib/em Intel I217-LM NIC: sporadic connection loss 12-STABLE Product: Base System Version: Unspecified Hardware: Any OS: Any Status: New Severity: Affects Many People Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: ohartmann@walstatt.org OS: FreeBSD 12.2-STABLE #56 r367863: Fri Nov 20 08:12:33 CET 2020 amd64 The box in question is a Fujitsu Celsius M750 system, dated 2015. Since the first occurence of iflib() in FreeBSD and the related new design, this spec= ific chipset seems to have massive problems keeping up a connection open via ssh. Since then, the problem is present up to this day. We swapped all NICs of t= hat type, if possible, with dedicated NIC boards carrying two i350 ports (igb) = and the problem has been mitigated so far (still sporadic connection losses, but very rare).=20 For a reference, we used also some Xubunto hosts with 20.04 LTS on the same= box connectiong to the very same hosts and thoese connections were rock stable = and lasted days. Even connections with the igb/i350 chipsets lasted sometimes f= or days, but not i217-LM. Below some hardware specific informations for the i217-LM: pciconf -lvbc: em0@pci0:0:25:0: class=3D0x020000 card=3D0x11ed1734 chip=3D0x153a808= 6 rev=3D0x05 hdr=3D0x00 vendor =3D 'Intel Corporation' device =3D 'Ethernet Connection I217-LM' class =3D network subclass =3D ethernet bar [10] =3D type Memory, range 32, base 0xfb400000, size 131072, ena= bled bar [14] =3D type Memory, range 32, base 0xfb439000, size 4096, enabl= ed bar [18] =3D type I/O Port, range 32, base 0xf020, size 32, enabled cap 01[c8] =3D powerspec 2 supports D0 D3 current D0 cap 05[d0] =3D MSI supports 1 message, 64 bit enabled with 1 message cap 13[e0] =3D PCI Advanced Features: FLR TP dmesg extract: pci1: <simple comms> at device 22.0 (no driver attached) em0: <Intel(R) PRO/1000 Network Connection> port 0xf020-0xf03f mem 0xfb400000-0xfb41ffff,0xfb439000-0xfb439fff at device 25.0 numa-domain 0 on pci1 em0: Using 1024 TX descriptors and 1024 RX descriptors em0: Using an MSI interrupt em0: Ethernet address: XXXX em0: netmap queues/slots: TX 1/1024, RX 1/1024 and ifconfig: em0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 =20=20=20=20=20=20=20 options=3D81249b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LRO,WOL_= MAGIC,VLAN_HWFILTER> ether xx:xx:xx:xx:xx:xx inet 192.168.0.2 netmask 0xffffff00 broadcast 192.168.0.255 inet6 fe80::xxxx:eff:xxxx:xxxx%em00 prefixlen 64 scopeid 0x1 inet6 fd60:b403:101::233 prefixlen 64 media: Ethernet autoselect (1000baseT <full-duplex>) status: active nd6 options=3D61<PERFORMNUD,AUTO_LINKLOCAL,NO_RADR> --=20 You are receiving this mail because: You are the assignee for the bug.=
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