I rebuilt d-i against the kernel in proposed and booted it a couple of times. I have not reproduced this issue, so marking it verified.
~ # uname -a Linux cvm3 4.4.0-25-generic #44-Ubuntu SMP Fri Jun 10 18:15:04 UTC 2016 aarch64 GNU/Linux ~ # dmesg | grep -i soft [ 0.000000] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-di root=UUID=bc611283-1f38-4993-a2b9-883922c7ed1f ro earlycon=pl011,0x87e024000000 hardlockup_all_cpu_backtrace=1 softlockup_all_cpu_backtrace=1 earlycon=pl011,0x87e024000000 apt-setup/proposed=true [ 0.000000] software IO TLB [mem 0xfbfed000-0xfffed000] (64MB) mapped at [ffff8000fb1ed000-ffff8000ff1ecfff] [ 0.229859] CPU features: detected feature: Software prefetching using PRFM [ 174.913338] xor: measuring software checksum speed ** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- 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/1574814 Title: ThunderX: soft lockup in cursor_timer_handler() Status in linux package in Ubuntu: Confirmed Status in linux source package in Xenial: Fix Committed Bug description: I booted a Cavium ThunderX crb1s 2.0 system using the netboot mini iso via virtual media: http://ports.ubuntu.com/ubuntu-ports/dists/xenial/main/installer-arm64/20101020ubuntu451/images/netboot/mini.iso During boot I observed the following lockup on the serial console: [ 28.128327] usb 1-1.1: reset high-speed USB device number 3 using xhci_hcd [ 84.912299] NMI watchdog: BUG: soft lockup - CPU#14 stuck for 23s! [swapper/14:0] [ 84.922718] Modules linked in: hid_generic(E) usbhid(E) hid(E) usb_storage(E) mdio_thunder(E) nicvf(E) ast(E) i2c_algo_bit(E) drm_kms_helper(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) ttm(E) drm(E) nicpf(E) thunder_bgx(E) mdio_cavium(E) [ 84.922749] [ 84.922754] CPU: 14 PID: 0 Comm: swapper/14 Tainted: G E 4.4.0-21-generic #37-Ubuntu [ 84.922757] Hardware name: Cavium ThunderX CN88XX board (DT) [ 84.922761] task: ffff801f6c9d4100 ti: ffff801f6c9e8000 task.ti: ffff801f6c9e8000 [ 84.922771] PC is at cursor_timer_handler+0x30/0x58 [ 84.922775] LR is at cursor_timer_handler+0x30/0x58 [ 84.922778] pc : [<ffff8000004ec4f0>] lr : [<ffff8000004ec4f0>] pstate: 00400145 [ 84.922781] sp : ffff801f6c9ebc20 [ 84.922784] x29: ffff801f6c9ebc20 x28: ffff8000f94398d8 [ 84.922789] x27: ffff801f6c9ebd00 x26: ffff801f7b3bebb8 [ 84.922793] x25: ffff801f6c9e8000 x24: ffff800000e5ec00 [ 84.922798] x23: ffff801f667d9800 x22: ffff8000004ec4c0 [ 84.922802] x21: 0000000000000100 x20: ffff8000f94398d8 [ 84.922807] x19: ffff8000f9439800 x18: 0000ffffc76a5358 [ 84.922811] x17: 0000ffff97bbd2a8 x16: ffff8000002a5040 [ 84.922816] x15: 000000003e4cf1e0 x14: 0000000000000008 [ 84.922820] x13: 0000000000000000 x12: 003d090000000000 [ 84.922824] x11: 00000000003d0900 x10: ffff80000090f200 [ 84.922829] x9 : 00003d0900000000 x8 : 000000000000000e [ 84.922833] x7 : ffff801f7b3c5008 x6 : 00000000ffffffff [ 84.922837] x5 : 0000000000000000 x4 : 0000000000000001 [ 84.922842] x3 : 0000000000000000 x2 : ffff801f6c899e05 [ 84.922846] x1 : ffff801f667d99e0 x0 : 0000000000000000 [ 84.922850] [ 101.008387] usb 1-1.1: reset high-speed USB device number 3 using xhci_hcd [ 101.180375] usb 1-1.1: reset high-speed USB device number 3 using xhci_hcd [ 101.342677] random: nonblocking pool is initialized To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1574814/+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