Hi, > Just before the box freezes there are a lot of ksoftirqd threads quite busy: > > PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND > 20 root 20 0 0 0 0 R 100.0 0.0 1:27.29 > [ksoftirqd/2] > 60 root 20 0 0 0 0 R 100.0 0.0 1:16.64 > [ksoftirqd/10] > 90 root 20 0 0 0 0 R 100.0 0.0 1:44.79 > [ksoftirqd/16] > 160 root 20 0 0 0 0 R 100.0 0.0 1:32.92 > [ksoftirqd/30] > 220 root 20 0 0 0 0 R 100.0 0.0 1:42.52 > [ksoftirqd/42] > 50 root 20 0 0 0 0 R 100.0 0.0 1:26.21 > [ksoftirqd/8] > 120 root 20 0 0 0 0 R 100.0 0.0 1:24.15 > [ksoftirqd/22] > 190 root 20 0 0 0 0 R 100.0 0.0 1:47.05 > [ksoftirqd/36] > 200 root 20 0 0 0 0 R 100.0 0.0 1:49.58 > [ksoftirqd/38] > 210 root 20 0 0 0 0 R 100.0 0.0 1:58.60 > [ksoftirqd/40] > 230 root 20 0 0 0 0 R 100.0 0.0 1:35.77 > [ksoftirqd/44] > 240 root 20 0 0 0 0 R 100.0 0.0 1:59.37 > [ksoftirqd/46] > 250 root 20 0 0 0 0 R 100.0 0.0 1:41.46 > [ksoftirqd/48] > 260 root 20 0 0 0 0 R 100.0 0.0 1:28.37 > [ksoftirqd/50] > 280 root 20 0 0 0 0 R 100.0 0.0 1:17.73 > [ksoftirqd/54] > 100 root 20 0 0 0 0 R 86.3 0.0 1:35.04 > [ksoftirqd/18] > 150 root 20 0 0 0 0 R 86.3 0.0 1:36.73 > [ksoftirqd/28] > 30 root 20 0 0 0 0 R 85.3 0.0 1:18.45 > [ksoftirqd/4] > 40 root 20 0 0 0 0 R 85.3 0.0 1:42.14 > [ksoftirqd/6] > 70 root 20 0 0 0 0 R 85.3 0.0 1:27.51 > [ksoftirqd/12] > 110 root 20 0 0 0 0 R 85.3 0.0 1:22.93 > [ksoftirqd/20] > 130 root 20 0 0 0 0 R 85.3 0.0 1:37.32 > [ksoftirqd/24] > 140 root 20 0 0 0 0 R 85.3 0.0 1:36.85 > [ksoftirqd/26] > 3 root 20 0 0 0 0 S 84.3 0.0 2:47.02 > [ksoftirqd/0] > 80 root 20 0 0 0 0 R 84.3 0.0 1:43.63 > [ksoftirqd/14] > 270 root 20 0 0 0 0 R 84.3 0.0 1:21.22 > [ksoftirqd/52] > 170 root 20 0 0 0 0 R 66.7 0.0 1:43.50 > [ksoftirqd/32] > 180 root 20 0 0 0 0 R 51.0 0.0 0:52.70 > [ksoftirqd/34] > 444 root 20 0 0 0 0 R 46.1 0.0 1:41.75 > [kworker/34:1] > 205389 root 20 0 0 0 0 R 19.6 0.0 0:04.53 > [kworker/u769:2] > 892 root 20 0 110908 69888 69556 S 18.6 0.1 4:06.82 > /usr/lib/systemd/systemd-journald > 644 root 20 0 0 0 0 S 15.7 0.0 0:19.73 > [kworker/14:1] > 740 root 20 0 0 0 0 S 15.7 0.0 0:08.38 > [kworker/52:1] > 26633 root 20 0 0 0 0 S 15.7 0.0 0:35.72 > [kworker/6:0] > 209211 root 20 0 0 0 0 S 15.7 0.0 0:03.96 > [kworker/u769:0] > 111 root 20 0 0 0 0 S 14.7 0.0 0:16.67 > [kworker/20:0] > 541 root 20 0 0 0 0 S 14.7 0.0 0:16.59 > [kworker/12:1] > 2698 root 20 0 0 0 0 S 14.7 0.0 0:09.77 > [kworker/28:1] > 12100 root 20 0 0 0 0 S 14.7 0.0 0:17.94 > [kworker/18:1] > 40451 root 20 0 0 0 0 S 14.7 0.0 0:12.69 > [kworker/24:0] > 40592 root 20 0 0 0 0 S 14.7 0.0 0:23.30 > [kworker/32:1] > 212923 root 20 0 0 0 0 S 14.7 0.0 0:02.89 > [kworker/4:1] > 300255 root 20 0 0 0 0 S 14.7 0.0 0:17.89 > [kworker/26:0] > > At least I'm making some use of those 28 cores ;)
Fun addition: the kernel just warned me right after I could log back in: Message from [email protected] at Sep 4 23:15:42 ... kernel:NMI watchdog: BUG: soft lockup - CPU#38 stuck for 23s! [kworker/u769:0:209211] Very busy indeed :) Cheers! Sander
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