(In reply to Klaus Mueller from comment #427)
> (In reply to JerryD from comment #426)
> > I am on Ryzen 2500U Laptop, HP. I am using kernel 4.18.9-200.fc28.x86_64.
> >
> > The zenstates.py script fails when I try to disable C6. Oh well.
>
> Did you load msr kernel module before (modprobe msr)?
>
> Do you have the possibility to slightly overclock? Isn't there a Bios switch
> like "Typical Current Idle"? Is there a possibility to switch of C-states
> completely in the Bios (just for testing to be sure your hangs are the same
> reason as here)?
As follows:
[root@amdr jerry]# modprobe msr
[root@amdr jerry]# ./bin/zenstates.py --list
P0 - Enabled - FID = 64 - DID = A - VID = 35 - Ratio = 20.00 - vCore = 1.21875
P1 - Enabled - FID = 66 - DID = C - VID = 60 - Ratio = 17.00 - vCore = 0.95000
P2 - Enabled - FID = 60 - DID = C - VID = 66 - Ratio = 16.00 - vCore = 0.91250
P3 - Disabled
P4 - Disabled
P5 - Disabled
P6 - Disabled
P7 - Disabled
C6 State - Package - Enabled
C6 State - Core - Enabled
[root@amdr jerry]# ./bin/zenstates.py --c6-disable
Traceback (most recent call last):
File "./bin/zenstates.py", line 112, in <module>
writemsr(0xC0010292, readmsr(0xC0010292) & ~(1 << 32))
File "./bin/zenstates.py", line 23, in writemsr
raise OSError("msr module not loaded (run modprobe msr)")
OSError: msr module not loaded (run modprobe msr)
As you can see msr is loaded and listing the states works fine but the
disable option fails.
The bios on this laptop has no power related options that I can see.
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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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