Date: Thu, 17 Jan 2019 21:13:08 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 235031] [em] em0: poor NFS performance, strange behavior Message-ID: <bug-235031-227-hmziiWNyso@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-235031-227@https.bugs.freebsd.org/bugzilla/> References: <bug-235031-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D235031 --- Comment #2 from Martin Birgmeier <d8zNeCFG@aon.at> --- Another scenario =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Just for experimenting, I issued the following commands: ifconfig em0 -rxcsum .............. result: connectivity to other machines = lost for existing connections (TCP and UDP), new connections can be established ifconfig em0 rxcsum ............... result: same ifconfig em0 down ................. result: same ifocnfig em0 up ................... result: same In addition, these actions resulted in the following message being repeated= on the console every few seconds: TX(0) desc avail =3D 1024, pidx =3D 0 I had to reboot the machine to get it working normally again. [0]# grep em0 /var/log/messages ... Jan 17 21:29:18 mizar kernel: em0: link state changed to DOWN Jan 17 21:29:20 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:30:02 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:36:14 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:36:22 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:36:25 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:36:28 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:36:31 mizar kernel: em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:37:59 mizar kernel: Syncing disks, vnodes remaining... 11 12 em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:37:59 mizar kernel: 8 8 em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:37:59 mizar kernel: 8 8 8 em0: TX(0) desc avail =3D 1024, pidx = =3D 0 Jan 17 21:37:59 mizar kernel: 8 2 2 em0: TX(0) desc avail =3D 1024, pidx = =3D 0 Jan 17 21:37:59 mizar kernel: 1 0 0 em0: TX(0) desc avail =3D 1024, pidx = =3D 0 Jan 17 21:37:59 mizar kernel: 0 0 0 em0: TX(0) desc avail =3D 1024, pidx = =3D 0 Jan 17 21:37:59 mizar kernel: Waiting (max 60 seconds) for system thread `bufspacedaemon-0' to stop... em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:37:59 mizar kernel: Waiting (max 60 seconds) for system thread `bufspacedaemon-6' to stop... em0: TX(0) desc avail =3D 1024, pidx =3D 0 Jan 17 21:37:59 mizar kernel: em0: <Intel(R) PRO/1000 Network Connection> p= ort 0x6040-0x605f mem 0xd5300000-0xd531ffff,0xd532b000-0xd532bfff irq 20 at dev= ice 25.0 on pci0 Jan 17 21:37:59 mizar kernel: em0: attach_pre capping queues at 1 Jan 17 21:37:59 mizar kernel: em0: using 1024 tx descriptors and 1024 rx descriptors Jan 17 21:37:59 mizar kernel: em0: msix_init qsets capped at 1 Jan 17 21:37:59 mizar kernel: em0: Unable to map MSIX table=20 Jan 17 21:37:59 mizar kernel: em0: Using an MSI interrupt Jan 17 21:37:59 mizar kernel: em0: allocated for 1 tx_queues Jan 17 21:37:59 mizar kernel: em0: allocated for 1 rx_queues Jan 17 21:37:59 mizar kernel: em0: Ethernet address: f0:de:f1:98:86:a9 Jan 17 21:37:59 mizar kernel: em0: link state changed to UP [0]# --=20 You are receiving this mail because: You are the assignee for the bug.=
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