我们订购了一台具有以下规格的预装机器，并在 SSD 上安装了 Ubuntu 17.04。Ubuntu 在四个不同的时间点随机冻结（包括安装 anaconda for Python 时）。我们决定在同一个 SSD 驱动器上迁移到 16.04（因为我们在日常工作中更熟悉这个操作系统），但问题仍然存在。
这是与其中一次冻结时间相关的系统日志的输出。
Jun 5 02:22:08 PsertainTech org.gnome.evolution.dataserver.Sources5[1648]: ** (evolution-source-registry:1869): WARNING **: secret_service_search_sync: must specify at least one attribute to match
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736597] INFO: rcu_sched detected stalls on CPUs/tasks:
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736609] 7-...: (433 GPs behind) idle=07d/1/0 softirq=176166/176166 fqs=7188
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736613] (detected by 3, t=15002 jiffies, g=241027, c=241026, q=3366)
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736620] Task dump for CPU 7:
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736622] swapper/7 R running task 0 0 1 0x00000008
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736628] 0000000000000010 0000000000000246 ffff8c86585b7e70 0000000000000018
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736632] 7735940000000000 00000343907a93bf 0000000000000007 ffff8c86585b8000
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736636] ffff8c865f3e2900 ffffffffac4b92e0 ffff8c86585b4000 ffff8c86585b7eb8
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736640] Call Trace:
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736650] [<ffffffffabd157f7>] ? cpuidle_enter+0x17/0x20
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736655] [<ffffffffab6c7a5a>] ? call_cpuidle+0x2a/0x50
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736658] [<ffffffffab6c7e3e>] ? cpu_startup_entry+0x29e/0x350
Jun 5 02:22:18 PsertainTech kernel: [ 3648.736662] [<ffffffffab651891>] ? start_secondary+0x151/0x190
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752786] INFO: rcu_sched detected stalls on CPUs/tasks:
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752796] 7-...: (433 GPs behind) idle=07d/1/0 softirq=176166/176166 fqs=27789
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752799] (detected by 4, t=60007 jiffies, g=241027, c=241026, q=11266)
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752803] Task dump for CPU 7:
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752805] swapper/7 R running task 0 0 1 0x00000008
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752810] 0000000000000010 0000000000000246 ffff8c86585b7e70 0000000000000018
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752815] 7735940000000000 00000343907a93bf 0000000000000007 ffff8c86585b8000
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752819] ffff8c865f3e2900 ffffffffac4b92e0 ffff8c86585b4000 ffff8c86585b7eb8
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752823] Call Trace:
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752833] [<ffffffffabd157f7>] ? cpuidle_enter+0x17/0x20
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752839] [<ffffffffab6c7a5a>] ? call_cpuidle+0x2a/0x50
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752843] [<ffffffffab6c7e3e>] ? cpu_startup_entry+0x29e/0x350
Jun 5 02:25:18 PsertainTech kernel: [ 3828.752848] [<ffffffffab651891>] ? start_secondary+0x151/0x190
Jun 5 02:25:28 PsertainTech org.gnome.evolution.dataserver.Sources5[2720]: ** (evolution-source-registry:2988): WARNING **: secret_service_search_sync: must specify at least one attribute to match
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773198] INFO: rcu_sched detected stalls on CPUs/tasks:
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773210] 7-...: (433 GPs behind) idle=07d/1/0 softirq=176166/176166 fqs=48323
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773214] (detected by 0, t=105012 jiffies, g=241027, c=241026, q=19082)
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773221] Task dump for CPU 7:
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773223] swapper/7 R running task 0 0 1 0x00000008
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773228] 0000000000000010 0000000000000246 ffff8c86585b7e70 0000000000000018
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773232] 7735940000000000 00000343907a93bf 0000000000000007 ffff8c86585b8000
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773236] ffff8c865f3e2900 ffffffffac4b92e0 ffff8c86585b4000 ffff8c86585b7eb8
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773240] Call Trace:
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773251] [<ffffffffabd157f7>] ? cpuidle_enter+0x17/0x20
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773256] [<ffffffffab6c7a5a>] ? call_cpuidle+0x2a/0x50
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773259] [<ffffffffab6c7e3e>] ? cpu_startup_entry+0x29e/0x350
Jun 5 02:28:18 PsertainTech kernel: [ 4008.773264] [<ffffffffab651891>] ? start_secondary+0x151/0x190
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789674] INFO: rcu_sched detected stalls on CPUs/tasks:
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789686] 7-...: (433 GPs behind) idle=07d/1/0 softirq=176166/176166 fqs=68966
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789690] (detected by 0, t=150017 jiffies, g=241027, c=241026, q=26836)
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789696] Task dump for CPU 7:
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789698] swapper/7 R running task 0 0 1 0x00000008
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789703] 0000000000000010 0000000000000246 ffff8c86585b7e70 0000000000000018
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789707] 7735940000000000 00000343907a93bf 0000000000000007 ffff8c86585b8000
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789710] ffff8c865f3e2900 ffffffffac4b92e0 ffff8c86585b4000 ffff8c86585b7eb8
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789715] Call Trace:
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789725] [<ffffffffabd157f7>] ? cpuidle_enter+0x17/0x20
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789730] [<ffffffffab6c7a5a>] ? call_cpuidle+0x2a/0x50
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789733] [<ffffffffab6c7e3e>] ? cpu_startup_entry+0x29e/0x350
Jun 5 02:31:18 PsertainTech kernel: [ 4188.789738] [<ffffffffab651891>] ? start_secondary+0x151/0x190
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808848] INFO: rcu_sched detected stalls on CPUs/tasks:
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808861] 7-...: (433 GPs behind) idle=07d/1/0 softirq=176166/176166 fqs=89546
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808865] (detected by 3, t=195022 jiffies, g=241027, c=241026, q=34852)
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808871] Task dump for CPU 7:
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808873] swapper/7 R running task 0 0 1 0x00000008
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808879] 0000000000000010 0000000000000246 ffff8c86585b7e70 0000000000000018
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808883] 7735940000000000 00000343907a93bf 0000000000000007 ffff8c86585b8000
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808887] ffff8c865f3e2900 ffffffffac4b92e0 ffff8c86585b4000 ffff8c86585b7eb8
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808891] Call Trace:
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808901] [<ffffffffabd157f7>] ? cpuidle_enter+0x17/0x20
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808906] [<ffffffffab6c7a5a>] ? call_cpuidle+0x2a/0x50
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808909] [<ffffffffab6c7e3e>] ? cpu_startup_entry+0x29e/0x350
Jun 5 02:34:18 PsertainTech kernel: [ 4368.808914] [<ffffffffab651891>] ? start_secondary+0x151/0x190
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828850] INFO: rcu_sched detected stalls on CPUs/tasks:
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828862] 7-...: (433 GPs behind) idle=07d/1/0 softirq=176166/176166 fqs=110118
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828865] (detected by 9, t=240027 jiffies, g=241027, c=241026, q=42598)
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828871] Task dump for CPU 7:
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828873] swapper/7 R running task 0 0 1 0x00000008
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828878] 0000000000000010 0000000000000246 ffff8c86585b7e70 0000000000000018
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828882] 7735940000000000 00000343907a93bf 0000000000000007 ffff8c86585b8000
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828886] ffff8c865f3e2900 ffffffffac4b92e0 ffff8c86585b4000 ffff8c86585b7eb8
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828889] Call Trace:
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828900] [<ffffffffabd157f7>] ? cpuidle_enter+0x17/0x20
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828904] [<ffffffffab6c7a5a>] ? call_cpuidle+0x2a/0x50
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828907] [<ffffffffab6c7e3e>] ? cpu_startup_entry+0x29e/0x350
Jun 5 02:37:18 PsertainTech kernel: [ 4548.828912] [<ffffffffab651891>] ? start_secondary+0x151/0x190
Jun 5 02:40:18 PsertainTech kernel: [ 4728.843394] INFO: rcu_sched detected stalls on CPUs/tasks:
Jun 5 02:40:18 PsertainTech kernel: [ 4728.843406] 7-...: (433 GPs behind) idle=07d/1/0 softirq=176166/176166 fqs=130672
Jun 5 02:40:18 PsertainTech kernel: [ 4728.843410] (detected by 3, t=285032 jiffies, g=241027, c=241026, q=50334)
我们尝试了 c 状态修复，但没有成功：GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_idle.max_cstate=1"
- 主板：华硕英特尔 X99-A II USB 3.1 系列 DDR4/四路 CrossFireX 和四路 SLI/SATA3 和 USB3.1
- 内存：64GB DDR4-2133/2400 PC4-17000/19200 4X16GB
- CPU：酷睿 i7-6850K Broadwell-E 6xCore 3.6GHz 2011 v3
- SSD：三星 850 EVO 系列 500GB 固态硬盘
- 硬盘：2TB Western Digital Black 7200RPM SATA-3 6Gb/s 64MB 缓存
- GPU：Nvidia GeForce GT 730 2GB DDR PCI-Express
free -h输出：
total used free shared buff/cache available
Mem: 62G 2.1G 59G 55M 1.4G 60G
Swap: 63G 0B 63G
swapon 输出：
名称 类型 大小 使用优先级 /dev/sdb5 分区 63.9G 0B -1
sudo blkid 输出：
/dev/sda1: UUID="a8fb3b82-1a85-4377-99e3-20d22e63a451" TYPE="swap" PARTUUID="7f08bb24-9185-47bf-a949-a316a0b63f5b"
/dev/sdb1: UUID="1c22f4a6-4c23-46c1-bdcc-7644ed39e193" TYPE="ext4" PARTUUID="43ee50b9-01"
/dev/sdb5: UUID="c7a7c6b7-e3a2-4942-b4a1-7d66eccb0915" TYPE="swap" PARTUUID="43ee50b9-05"
/dev/sdb6: UUID="8668e4db-4dd9-4b76-8d06-b6241d521800" TYPE="ext4" PARTUUID="43ee50b9-06"
cat /etc/fstab 输出：
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
# / was on /dev/sdb1 during installation
UUID=1c22f4a6-4c23-46c1-bdcc-7644ed39e193 / ext4 errors=remount-ro 0 1
# /home was on /dev/sdb6 during installation
UUID=8668e4db-4dd9-4b76-8d06-b6241d521800 /home ext4 defaults 0 2
# swap was on /dev/sdb5 during installation
UUID=c7a7c6b7-e3a2-4942-b4a1-7d66eccb0915 none swap sw 0 0
cat /etc/crypt* 输出： cat：'/etc/crypt*'：没有这样的文件或目录
ls -alh /swapfile 输出：ls：无法访问'/swapfile'：没有此文件或目录
Jun 8 08:29:22 psertain kernel: [37593.535883] nouveau 0000:01:00.0: fifo: SCHED_ERROR 0a [CTXSW_TIMEOUT]
Jun 8 08:29:22 psertain kernel: [37593.535898] nouveau 0000:01:00.0: fifo: runlist 0: scheduled for recovery
Jun 8 08:29:22 psertain kernel: [37593.535911] nouveau 0000:01:00.0: fifo: channel 3: killed
Jun 8 08:29:22 psertain kernel: [37593.535918] nouveau 0000:01:00.0: fifo: engine 0: scheduled for recovery
Jun 8 08:29:22 psertain kernel: [37593.535998] nouveau 0000:01:00.0: Xorg[1105]: channel 3 killed!
Jun 8 08:29:33 psertain kernel: [37604.030229] [drm:drm_atomic_helper_swap_state [drm_kms_helper]] *ERROR* [CRTC:37:head-0] hw_done timed out
Jun 8 08:29:43 psertain kernel: [37614.269426] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:head-0] hw_done timed out
Jun 8 08:29:53 psertain kernel: [37624.508634] [drm:drm_atomic_helper_wait_for_dependencies [drm_kms_helper]] *ERROR* [CRTC:37:head-0] flip_done timed out
Jun 8 08:30:59 psertain rsyslogd: [origin software="rsyslogd" swVersion="8.16.0" x-pid="909" x-info="http://www.rsyslog.com"] start
答案1
事实证明，我不得不重新安装 Linux 并启用 340 版 nvidia 驱动程序，而不是较新的测试版本，到目前为止 24 小时内没有出现死机。退出待机状态也可以。希望这种情况能继续下去。–@sousuffer