ubuntu@ms10-40-mcdivittA3:~$ uname -a Linux ms10-40-mcdivittA3 3.16.0-44-generic #59-Ubuntu SMP Tue Jul 7 02:18:58 UTC 2015 aarch64 aarch64 aarch64 GNU/Linux ubuntu@ms10-40-mcdivittA3:~$ ubuntu@ms10-40-mcdivittA3:~$ ubuntu@ms10-40-mcdivittA3:~$ ubuntu@ms10-40-mcdivittA3:~$ iperf -c 10.229.0.101 -P 8 -t 120 ------------------------------------------------------------ Client connecting to 10.229.0.101, TCP port 5001 TCP window size: 85.0 KByte (default) ------------------------------------------------------------ [ 10] local 10.229.65.140 port 48807 connected with 10.229.0.101 port 5001 [ 5] local 10.229.65.140 port 48802 connected with 10.229.0.101 port 5001 [ 3] local 10.229.65.140 port 48801 connected with 10.229.0.101 port 5001 [ 4] local 10.229.65.140 port 48800 connected with 10.229.0.101 port 5001 [ 6] local 10.229.65.140 port 48803 connected with 10.229.0.101 port 5001 [ 7] local 10.229.65.140 port 48804 connected with 10.229.0.101 port 5001 [ 8] local 10.229.65.140 port 48806 connected with 10.229.0.101 port 5001 [ 9] local 10.229.65.140 port 48805 connected with 10.229.0.101 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0-120.0 sec 3.46 GBytes 247 Mbits/sec [ 5] 0.0-120.0 sec 192 MBytes 13.4 Mbits/sec [ 6] 0.0-120.0 sec 2.94 GBytes 210 Mbits/sec [ 7] 0.0-120.0 sec 2.83 GBytes 203 Mbits/sec [ 8] 0.0-120.0 sec 3.19 GBytes 228 Mbits/sec [ 9] 0.0-120.0 sec 192 MBytes 13.4 Mbits/sec [ 10] 0.0-120.1 sec 191 MBytes 13.3 Mbits/sec [ 4] 0.0-120.1 sec 191 MBytes 13.3 Mbits/sec [SUM] 0.0-120.1 sec 13.2 GBytes 942 Mbits/sec
** Tags removed: verification-needed-utopic ** Tags added: verification-done-utopic -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1425576 Title: Occasional crash in APM xgene enet driver on kernels prior to v3.19 Status in linux package in Ubuntu: Triaged Status in linux source package in Trusty: Fix Committed Status in linux source package in Utopic: Fix Committed Bug description: [Impact] System panics every few hours under constant network load [Test Case] On the X-Gene system, start an iperf server: $ iperf -s Connect to it from another system (1Gbps is sufficient) $ iperf -t 100000 -c <xgene host> On failure, you'll get a panic within several hours. [Regression Risk] The proposed patch only touches the impacted driver. It is adding a memory barrier - albeit a lightweight one - so there is the risk of a performance degradation. Indeed, when measured using a 60s iperf run, I do see a performance drop, but by < 0.5%. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1425576/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
