This could be a BIOS issue. Do you have the latest one for your system? It looks like the Ethernet device wasn't suspended correctly which seems to be happening here.
So this doesn't happen if you have a cable with link plugged in to the port? Are you also saying that it's only happening on the T540p and not on the T530? If yes then this point to BIOS again. Please let us know. Cheers, John > -----Original Message----- > From: Marc MERLIN [mailto:m...@merlins.org] > Sent: Wednesday, January 22, 2014 4:59 PM > To: e1000-devel@lists.sourceforge.net > Subject: [E1000-devel] Unplugging ethernet cable causes 'e1000e > 0000:00:19.0 eth0: Detected Hardware Unit Hang:' > > Howdy, > > On a thinkpad T540p (but I could swear I had this on my T530 too), if I > unplug the ethernet cable I was using, NM switches back to wireless and > all is good, except that my logs get heavily spammed with: > > > e1000e 0000:00:19.0 eth0: Detected Hardware Unit Hang: > TDH <0> > TDT <4> > next_to_use <4> > next_to_clean <0> > buffer_info[next_to_clean]: > time_stamp <10016edb7> > next_to_watch <0> > jiffies <100174da5> > next_to_watch.status <0> > MAC Status <80080> > PHY Status <7949> > PHY 1000BASE-T Status <0> > PHY Extended Status <3000> > PCI Status <10> > > I get one log entry every 2 seconds forever (or until I unload e1000e) > > I have > 00:19.0 Ethernet controller: Intel Corporation Device 153a (rev 04) > > Kernel: 3.12.7 > > Boot says: > e1000e: Intel(R) PRO/1000 Network Driver - 2.3.2-k > e1000e: Copyright(c) 1999 - 2013 Intel Corporation. > e1000e 0000:00:19.0: setting latency timer to 64 > e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to > dynamic conservative mode > e1000e 0000:00:19.0: irq 48 for MSI/MSI-X > > rmmod e1000e makes this go away, but the interface does not seem to > work > after I do modprobe e1000e > (dhcp never completes, and tcpdump -n -i eth0 shown no inbound traffic) > > At that point, fix seems to be a reboot. > > Scratch that, going to S3 sleep and waking up seems to fix it too. > > Last, but not least, before my last reboot when eth0 was wedged, I was > seeing > this: > kernel: [231510.362713] e1000e 0000:00:19.0 eth0: Error reading PHY > register > kernel: [231511.162238] e1000e 0000:00:19.0 eth0: Error reading PHY > register > kernel: [231511.961733] e1000e 0000:00:19.0 eth0: Error reading PHY > register > kernel: [231512.761187] e1000e 0000:00:19.0 eth0: Error reading PHY > register > kernel: [231513.560625] e1000e 0000:00:19.0 eth0: Error reading PHY > register > kernel: [231514.360756] e1000e 0000:00:19.0 eth0: Error reading PHY > register > kernel: [231515.160201] e1000e 0000:00:19.0 eth0: Error reading PHY > register > kernel: [231515.959637] e1000e 0000:00:19.0 eth0: Error reading PHY > register > laptop-mode: Switched auto-negotiation to on for eth0 > laptop-mode: Cannot advertise speed 1000 > laptop-mode: Restored speed to 1000 Mbit for eth0 > > Any ideas? > > Thanks, > Marc > -- > "A mouse is a device used to point at the xterm you want to type in" - > A.S.R. > Microsoft is to operating systems .... > .... what McDonalds is to gourmet > cooking > Home page: http://marc.merlins.org/ | PGP > 1024R/763BE901 > > ----------------------------------------------------------------------- > ------- > CenturyLink Cloud: The Leader in Enterprise Cloud Services. > Learn Why More Businesses Are Choosing CenturyLink Cloud For > Critical Workloads, Development Environments & Everything In Between. > Get a Quote or Start a Free Trial Today. > http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.c > lktrk > _______________________________________________ > E1000-devel mailing list > E1000-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/e1000-devel > To learn more about Intel® Ethernet, visit > http://communities.intel.com/community/wired ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. Learn Why More Businesses Are Choosing CenturyLink Cloud For Critical Workloads, Development Environments & Everything In Between. Get a Quote or Start a Free Trial Today. http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
