Date: Wed, 22 May 2019 21:43:24 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 234766] em(4) Intel 82579LM regression on Supermicro X9SCM-F Message-ID: <bug-234766-7501-dAJT79Xi7E@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-234766-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-234766-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234766 freebsd@coombscloud.com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |freebsd@coombscloud.com --- Comment #7 from freebsd@coombscloud.com --- I'm seeing similar behavior on a different Intel chip: $ freebsd-version -kr 12.0-RELEASE-p4 12.0-RELEASE-p4 $ pciconf -lv ... em0@pci0:0:31:6: class=0x020000 card=0x86721043 chip=0x15b88086 rev=0x31 hdr=0x00 vendor = 'Intel Corporation' device = 'Ethernet Connection (2) I219-V' class = network subclass = ethernet I will suddenly get the following kernel messages (the avail and pidx values differ at each failure): kernel: em0: TX(0) desc avail = 42, pidx = 208 kernel: em0: link state changed to DOWN Followed by a constant stream of the following messages: kernel: em0: TX(0) desc avail = 1024, pidx = 0 This seems to be triggered by periods of high network activity. For example, another computer has a backup task set to run once daily, which backs up a SAMBA share hosted by this computer. This network failure often happens shortly after that task begins. I used 11.2-RELASE on this computer for some time and never encountered this behavior with it. I'll give net/intel-em-kmod a try. -- You are receiving this mail because: You are the assignee for the bug.
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