Leann, More kernel patches supporting upcoming hardware. Michael On 03/24/2017 06:19 AM, Launchpad Bug Tracker wrote: > bugproxy (bugproxy) has assigned this bug to you for Ubuntu: > > Ubuntu17.04 installation Fails on ZZ-BML (POWER9) as getting (rcu_sched > detected stalls call traces ) > > Reproducible Step: > 1- kick off the installation > > while package installation rcu stalls detected and installation fails > > Firmware version : FW910.00 (UL910_006) > > LOG: > > ??????????????????????? Installing the base system ???????????????????????? > ? ? > ? 32% ? > ? ? > ? [ 466.603008] Oops: Machine check, sig: 7 [#1] ? > [ 466.603069] SMP NR_CPUS=2048 ? > [ 466.603071] NUMA ????????????????????????????????????????????????????????? > [ 466.603108] Harmless Hypervisor Maintenance interrupt [Recovered] > [ 466.603111] Error detail: Processor Recovery done > [ 466.603113] HMER: 2040000000000000 > [ 466.603117] Harmless Hypervisor Maintenance interrupt [Recovered] > [ 466.603119] Error detail: Processor Recovery done > [ 466.603121] HMER: 2040000000000000 > [ 466.603123] Harmless Hypervisor Maintenance interrupt [Recovered] > [ 466.603125] Error detail: Processor Recovery done > [ 466.603128] HMER: 2040000000000000 > [ 466.603909] PowerNV > [ 466.603963] Modules linked in: xfs jfs btrfs ntfs raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ipr scsi_dh_alua scsi_dh_emc scsi_dh_hp_sw scsi_dh_rdac usb_storage tg3 > [ 466.604408] CPU: 16 PID: 15340 Comm: debootstrap Tainted: G M 4.10.0-13-generic #15-Ubuntu > [ 466.604580] task: c0000000031bc800 task.stack: c00000000324c000 > [ 466.604704] NIP: c000000000079aa4 LR: c0000000006124c4 CTR: c00000000034a980 > [ 466.604851] REGS: c00000000fe7bd80 TRAP: 0200 Tainted: G M (4.10.0-13-generic) > [ 466.605020] MSR: 9000000000209033 > [ 466.605043] CR: 88002881 XER: 20000000 > [ 466.605214] CFAR: c000000000079a8c DAR: 00000000525984f0 DSISR: 00000400 SOFTE: 1 > [ 466.605214] GPR00: c0000000006124b0 c00000000324fbe0 c00000000143c700 c0000003adf3ea8c > [ 466.605214] GPR04: 00000000525984f0 0000000000000001 c00000000324fd20 ffffffffffffffff > [ 466.605214] GPR08: c000000000000000 c000000000b60000 c000000000000000 c000000000b61060 > [ 466.605214] GPR12: c00000000034a980 c00000000fb89000 0000000000000000 0000000000000000 > [ 466.605214] GPR16: 0000000000000000 00003ffffd8246d8 000000004b7de900 00003ffffd83fefc > [ 466.605214] GPR20: 000000004b7de8c0 000000004b7e2528 0000000000000002 00000000525984f0 > [ 466.605214] GPR24: c00000000324fd70 000000000000ea8c 0000000000000000 0000000000000001 > [ 466.605214] GPR28: c00a000000eb7cc0 c0000003adf3ea8c 0000000000000001 c00000000324fd20 > [ 466.607454] NIP [c000000000079aa4] __copy_tofrom_user_power7+0x250/0x7cc > [ 466.607687] LR [c0000000006124c4] copy_page_from_iter+0xe4/0x2e0 > [ 466.607911] Call Trace: > [ 466.608010] [c00000000324fbe0] [c0000000006124b0] copy_page_from_iter+0xd0/0x2e0 (unreliable) > [ 466.608327] [c00000000324fc50] [c00000000034bca4] pipe_write+0x514/0x560 > [ 466.608556] [c00000000324fd00] [c00000000033c8ec] new_sync_write+0xec/0x150 > [ 466.608786] [c00000000324fd90] [c00000000033e414] vfs_write+0xd4/0x240 > [ 466.609017] [c00000000324fde0] [c00000000033ffc8] SyS_write+0x68/0x110 > [ 466.609250] [c00000000324fe30] [c00000000000b184] system_call+0x38/0xe0 > [ 466.609476] Instruction dump: > [ 466.609614] 38630008 409d0014 80040000 38840004 90030000 38630004 409e0014 a0040000 > [ 466.609894] 38840002 b0030000 38630002 409f000c <88040000> 98030000 38600000 4e800020 > [ 466.610181] ---[ end trace cea5171b162d1d13 ]--- > [ 466.610372] > [ 487.618915] INFO: rcu_sched detected stalls on CPUs/tasks: > [ 487.619114] 16-...: (1 GPs behind) idle=093/140000000000000/0 softirq=2896/2940 fqs=2626 > [ 487.619259] (detected by 14, t=5252 jiffies, g=17122, c=17121, q=3265) > [ 487.619393] Task dump for CPU 16: > [ 487.619468] debootstrap R running task 0 15340 8860 0x00042004 > [ 487.619617] Call Trace: > [ 487.619677] [c00000000324faf0] [c00000000324fdd0] 0xc00000000324fdd0 (unreliable) > [ 550.642918] INFO: rcu_sched detected stalls on CPUs/tasks: > [ 550.643121] 16-...: (1 GPs behind) idle=093/140000000000000/0 softirq=2896/2940 fqs=10504 > [ 550.643269] (detected by 26, t=21008 jiffies, g=17122, c=17121, q=6735) > [ 550.643404] Task dump for CPU 16: > [ 550.643481] debootstrap R running task 0 15340 8860 0x00042004 > [ 550.643635] Call Trace: > [ 550.643694] [c00000000324faf0] [c00000000324fdd0] 0xc00000000324fdd0 (unreliable) > [ 613.666915] INFO: rcu_sched detected stalls on CPUs/tasks: > [ 613.667029] 16-...: (1 GPs behind) idle=093/140000000000000/0 softirq=2896/2940 fqs=18383 > [ 613.667099] (detected by 8, t=36764 jiffies, g=17122, c=17121, q=10254) > [ 613.667229] Task dump for CPU 16: > [ 613.667303] debootstrap R running task 0 15340 8860 0x00042004 > [ 613.667452] Call Trace: > [ 613.667509] [c00000000324faf0] [c00000000324fdd0] 0xc00000000324fdd0 (unreliable) > [ 676.690913] INFO: rcu_sched detected stalls on CPUs/tasks: > [ 676.691106] 16-...: (1 GPs behind) idle=093/140000000000000/0 softirq=2896/2940 fqs=26262 > [ 676.691252] (detected by 5, t=52520 jiffies, g=17122, c=17121, q=13570) > [ 676.691383] Task dump for CPU 16: > [ 676.691457] debootstrap R running task 0 15340 8860 0x00042004 > [ 676.691606] Call Trace: > > == Comment: #5 - Breno Henrique Leitao