Created attachment 82561 [details] Server configuration EEPROM fix script, mentioned in the BUG 7450 is not fit our configuration. We have Intel NIC 82576 series https://bugzilla.kernel.org/show_bug.cgi?id=7450 We have the following errors in message log Oct 4 20:11:16 carroll kernel: igb 0000:01:00.0: Detected Tx Unit Hang Oct 4 20:11:16 carroll kernel: Tx Queue <0> Oct 4 20:11:16 carroll kernel: TDH <b2> Oct 4 20:11:16 carroll kernel: TDT <17> Oct 4 20:11:16 carroll kernel: next_to_use <17> Oct 4 20:11:16 carroll kernel: next_to_clean <b1> Oct 4 20:11:16 carroll kernel: buffer_info[next_to_clean] Oct 4 20:11:16 carroll kernel: time_stamp <11ac16024> Oct 4 20:11:16 carroll kernel: next_to_watch <b2> Oct 4 20:11:16 carroll kernel: jiffies <11ac16428> Oct 4 20:11:16 carroll kernel: desc.status <17a8000> Oct 4 20:11:18 carroll kernel: igb 0000:01:00.0: Detected Tx Unit Hang Oct 4 20:11:18 carroll kernel: Tx Queue <0> Oct 4 20:11:18 carroll kernel: TDH <25> Oct 4 20:11:18 carroll kernel: TDT <80> Oct 4 20:11:18 carroll kernel: next_to_use <80> Oct 4 20:11:18 carroll kernel: next_to_clean <24> Oct 4 20:11:18 carroll kernel: buffer_info[next_to_clean] Oct 4 20:11:18 carroll kernel: time_stamp <11ac16550> Oct 4 20:11:18 carroll kernel: next_to_watch <25> Oct 4 20:11:18 carroll kernel: jiffies <11ac16bf8> Oct 4 20:11:18 carroll kernel: desc.status <1788000> Oct 4 20:11:28 carroll last message repeated 3 times Oct 4 20:11:54 carroll last message repeated 3 times Oct 4 20:11:57 carroll last message repeated 3 times Oct 4 20:13:00 carroll kernel: igb 0000:01:00.0: Detected Tx Unit Hang Oct 4 20:13:00 carroll kernel: Tx Queue <0> Oct 4 20:13:00 carroll kernel: TDH <96> Oct 4 20:13:00 carroll kernel: TDT <2b> Oct 4 20:13:00 carroll kernel: next_to_use <2b> Oct 4 20:13:00 carroll kernel: next_to_clean <96> Oct 4 20:13:00 carroll kernel: buffer_info[next_to_clean] Oct 4 20:13:00 carroll kernel: time_stamp <11ac2f241> Oct 4 20:13:00 carroll kernel: next_to_watch <97> Oct 4 20:13:00 carroll kernel: jiffies <11ac2fa68> Oct 4 20:13:00 carroll kernel: desc.status <1780000> Here is our configuration: # ethtool -i eth0 driver: igb version: 3.0.6-k2-2 firmware-version: 1.4-3 bus-info: 0000:01:00.0 # uname -r 2.6.18-308.13.1.el5 Our configuration in detail is attached to this bug
RHEL bugs should be reported to the vendor. The kernel is both too old and too different for upstream to care about