(In reply to OptionalRealName from comment #616)
> No 3000 owners yet? Is it safe to buy?

I have one, but I am going to return the laptop I think, it works as
expected but in terms of battery ryzen in linux sucks

PD: windows 5 W in idle
Linux, 12 W in idle in the same laptop with kernels 5.0 5.1 5.2 5.3...  BIG 
problem for laptops, I am not going to buy other laptop with rayzen I think, I 
don't know if I am the only person that have noticed this consumptions with a 
ryzen mobile...
Other thing, linux only recognices 3 states idle, there are:
CPUidle driver: acpi_idle
CPUidle governor: menu
analyzing CPU 0:

Number of idle states: 3
Available idle states: POLL C1 C2
POLL:
Flags/Description: CPUIDLE CORE POLL IDLE
Latency: 0
Usage: 1270
Duration: 2635
C1:
Flags/Description: ACPI FFH MWAIT 0x0
Latency: 1
Usage: 60347
Duration: 17870643
C2:
Flags/Description: ACPI IOPORT 0x414
Latency: 400
Usage: 22640
Duration: 59696920
 I don't know if there is GPU integrated problems or CPU problems but I think 
that are cpu ones for many reasons.. one of them is lscpu and cpupower telling 
me that hardware limits are 1,4Ghz-2,1Ghz IN A LAPTOP YEAH, in windows it 
reports 400 mhz like the minimum

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https://bugs.launchpad.net/bugs/1690085

Title:
  Ryzen 1800X freeze - rcu_sched detected stalls on CPUs/tasks

Status in Linux:
  Confirmed
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  
  We aregetting various kernel crash on a pretty new config.
  We're using Ryzen 1800X CPU with X370 Gaming Pro Carbon MB (7A32V1) using 
latest BIOS available (1.52)

  We are running Ubuntu 17.04 (amd64), we've tried different kernel version, 
native one and releases from http://kernel.ubuntu.com/~kernel-ppa/mainline/ too.
  Tested kernel version:

  native 17.04 kernel
  4.10.15

  Issues are the same, we're getting random freeze on the machine.

  Here is kern.log entry when happening :

  May 10 22:41:56 dev2 kernel: [24366.186246] INFO: rcu_sched detected stalls 
on CPUs/tasks:
  May 10 22:41:56 dev2 kernel: [24366.187618]     0-...: (1 GPs behind) 
idle=49b/1/0 softirq=28561/28563 fqs=913449
  May 10 22:41:56 dev2 kernel: [24366.188977]     (detected by 12, t=1860207 
jiffies, g=10001, c=10000, q=4656)
  May 10 22:41:56 dev2 kernel: [24366.190344] Task dump for CPU 0:
  May 10 22:41:56 dev2 kernel: [24366.190345] swapper/0       R  running task   
     0     0      0 0x00000008
  May 10 22:41:56 dev2 kernel: [24366.190348] Call Trace:
  May 10 22:41:56 dev2 kernel: [24366.190354]  ? native_safe_halt+0x6/0x10
  May 10 22:41:56 dev2 kernel: [24366.190355]  ? default_idle+0x20/0xd0
  May 10 22:41:56 dev2 kernel: [24366.190358]  ? arch_cpu_idle+0xf/0x20
  May 10 22:41:56 dev2 kernel: [24366.190360]  ? default_idle_call+0x23/0x30
  May 10 22:41:56 dev2 kernel: [24366.190362]  ? do_idle+0x16f/0x200
  May 10 22:41:56 dev2 kernel: [24366.190364]  ? cpu_startup_entry+0x71/0x80
  May 10 22:41:56 dev2 kernel: [24366.190366]  ? rest_init+0x77/0x80
  May 10 22:41:56 dev2 kernel: [24366.190368]  ? start_kernel+0x464/0x485
  May 10 22:41:56 dev2 kernel: [24366.190369]  ? 
early_idt_handler_array+0x120/0x120
  May 10 22:41:56 dev2 kernel: [24366.190371]  ? 
x86_64_start_reservations+0x24/0x26
  May 10 22:41:56 dev2 kernel: [24366.190372]  ? x86_64_start_kernel+0x14d/0x170
  May 10 22:41:56 dev2 kernel: [24366.190373]  ? start_cpu+0x14/0x14
  May 10 22:44:56 dev2 kernel: [24546.188093] INFO: rcu_sched detected stalls 
on CPUs/tasks:
  May 10 22:44:56 dev2 kernel: [24546.189461]     0-...: (1 GPs behind) 
idle=49b/1/0 softirq=28561/28563 fqs=935027
  May 10 22:44:56 dev2 kernel: [24546.190823]     (detected by 14, t=1905212 
jiffies, g=10001, c=10000, q=4740)
  May 10 22:44:56 dev2 kernel: [24546.192191] Task dump for CPU 0:
  May 10 22:44:56 dev2 kernel: [24546.192192] swapper/0       R  running task   
     0     0      0 0x00000008
  May 10 22:44:56 dev2 kernel: [24546.192195] Call Trace:
  May 10 22:44:56 dev2 kernel: [24546.192199]  ? native_safe_halt+0x6/0x10
  May 10 22:44:56 dev2 kernel: [24546.192201]  ? default_idle+0x20/0xd0
  May 10 22:44:56 dev2 kernel: [24546.192203]  ? arch_cpu_idle+0xf/0x20
  May 10 22:44:56 dev2 kernel: [24546.192204]  ? default_idle_call+0x23/0x30
  May 10 22:44:56 dev2 kernel: [24546.192206]  ? do_idle+0x16f/0x200
  May 10 22:44:56 dev2 kernel: [24546.192208]  ? cpu_startup_entry+0x71/0x80
  May 10 22:44:56 dev2 kernel: [24546.192210]  ? rest_init+0x77/0x80
  May 10 22:44:56 dev2 kernel: [24546.192211]  ? start_kernel+0x464/0x485
  May 10 22:44:56 dev2 kernel: [24546.192213]  ? 
early_idt_handler_array+0x120/0x120
  May 10 22:44:56 dev2 kernel: [24546.192214]  ? 
x86_64_start_reservations+0x24/0x26
  May 10 22:44:56 dev2 kernel: [24546.192215]  ? x86_64_start_kernel+0x14d/0x170
  May 10 22:44:56 dev2 kernel: [24546.192217]  ? start_cpu+0x14/0x14

  Depending on the kernel version, we've got NMI watchdog errors related to CPU 
stuck (mentioning the CPU core id, which is random).
  Crash is happening randomly, but in general after some hours (3-4h).

  Now, we've installed kernel 4.11.0-041100-generic #201705041534 this morning 
and waiting for crash...
  For now, the machine is not "used", at least, it's not CPU stressed...

  
  Thanks
  --- 
  ApportVersion: 2.20.4-0ubuntu4
  Architecture: amd64
  DistroRelease: Ubuntu 17.04
  InstallationDate: Installed on 2017-05-09 (1 days ago)
  InstallationMedia: Ubuntu-Server 17.04 "Zesty Zapus" - Release amd64 
(20170412)
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  Tags:  zesty
  Uname: Linux 4.11.0-041100-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  _MarkForUpload: True

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