Questions tagged [acpi]

Advanced Configuration and Power Interface (ACPI) specification provides an open standard for device configuration and power management by the operating system.

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How tofind the kernel driver name for the pcie controller in a running linux system booted from uefi/acpi?

I have an Ampere ARMv8 server running Ubuntu 20.04. I want to find out the kernel driver used for the PCIe controllers. How should I do? My purpose is to prove a hypothesis that for a server (which ...
bruin's user avatar
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AER error on ROMED8-2T board with m.2 NVMe disks - plausible? How to fix it?

Recently I added two PCIe 4.0 NVMe m.2 disks to a system (AMD Epyc 7402P on a ROMED8-2T board). Since then I receive warnings telling me that there were correctable AER errors on the physical layer. ...
Apollo13's user avatar
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How can I get my CPU to run at maximum speed by circumventing CPU scaling? [closed]

I am running CentOS 7 (7.9.2009) (kernel 3.10.0-1160.49.1.el7.x86_64) on a rather old laptop (Lenove T61) with a dual core CPU (Intel(R) Core(TM)2 Duo CPU T7300 @ 2.00GHz). The driver for CPU scaling ...
Mitch's user avatar
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What could prevent hdd hot-swap in linux ahci?

I'm tearing my hair out over this issue. I wanted to add a hotswap bay to my homeserver to easily add and remove HDD such as to easily rotate off-site backups. The mainboard in question is an Asrock ...
Gnarflord's user avatar
1 vote
1 answer
480 views

Can you force graceful shutdown of a locked Windows Server 2003? [closed]

I have a (physical) Server with Windows Server 2003 which is currently locked by the Administrator account and no one has the password. It should be straightforward to reset the password using one of ...
Guest's user avatar
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Which source of sensor readings are most prefered? IPMI, ACPI, or from sensor chip itself?

When monitoring systems for their temperature, and fan speeds, what source of sensor readings is most preferred? I can get all the motherboard readings from both, IPMI and directly from the Winbond ...
J. M. Becker's user avatar
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ACPI Error: AE_AML_PACKAGE_LIMIT, Index (0x000000006) is beyond end of object (length 0x6) (20181213/exoparg2-396)

I'm strugglin to install any linux distro in a new Samsung Odyssey machine (NP800G5H-XT2BR) with success. After installation of any distro (ubuntu, fedora, debian), the computer: Freezes on Login ...
Nakamoto's user avatar
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Constant ACPI errors in /var/log/messages on Centos 6.10

/var/log/messages is full of this, occurring every second. I can see this has been going on for at least 4 days but any older logs have been purged. Maybe it's always been like this. Jul 8 04:07:...
Codemonkey's user avatar
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Source for ACPI Power State: soft-off

We suffer from unpredictable server shutdowns (Fujitsu, 2k8 R2). The only unusual message in the logs are: 2018/06/29 13:14:13 [03006A] ACPI Power State: soft-off (S5 - by override) (INFO) CSS: no ...
Thomas P's user avatar
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watchdog watchdog0 watchdog did not stop

I have a computer that always has issues restarting/shutting down. I've installed many Linux distributions on it, including Debian 9 and VMware Photon OS, and I always have the same issue. When I ...
aristosv's user avatar
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6 votes
2 answers
3k views

How to Restart Centos 7 KVM Host safely without corrupting guest VMs/data?

I want to have a KVM virtualized server with few VMs (with different Guest OSs) in production. Now when I want to install kernel/package updates for the host machine, how to restart the hypervisor ...
Tonmoy's user avatar
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5 votes
1 answer
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ACPI shutdown does not always work on a Windows Server virtual machine

With virtualbox, I use VBoxManage controlvm "$VMNAME" acpipowerbutton to shut down a virtual server when the host is shutting down. This works well when I test, but not in real world cases (i.e. when ...
youen's user avatar
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Shut down windows server 2012R2 KVM VM

Question: Does anyone know how I can get the Windows 2012R2 virtual machines to shutdown when sent the signal by the cluster resource manager? Background: I am running Windows 2012R2 servers as ...
DougC's user avatar
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syslog full of APCI messages

I've got a Centos 7.2 desktop that is spamming the syslog server and also filling it's /var/log partition with constant messages : kernel: ACPI: _SB_.PWRB: ACPI_NOTIFY_DEVICE_WAKE event Can I ...
Gaspode's user avatar
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Do I need acpid daemon in virtualization guest?

I get VPS with KVM virtualisation (server for hosting services). I remove most of desktop services (like dbus, consolekit, xorg) because of security and stability concern. Guest run on virtualised ...
gavenkoa's user avatar
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VIA south bridge puts CPU to sleep, disables timer and ethernet interrupts

I have two VIA NAB-7410 boards with 4x Intel 82541GI gigabit adapters. On both boards, Linux occasionally stops responding to Ethernet frames. The problem goes away when another interrupt is triggered,...
peb's user avatar
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virsh shutdown not working on linux guest

Solution to this issue is usually installing acpi on the guest vm and making sure the vm has the following: <features> <acpi/> <apic/> <pae/> </features> I have that, ...
GreenTeaTech's user avatar
2 votes
1 answer
1k views

Is there any way to "save" a disconnected RDP sesion's state in a manner analogous to ACPI hibernate for a regular PC?

Related to: How often do you restart a heavily-utilized Windows Server 2008R2 Remote Desktop Server (VM)? If there are some disconnected user sessions on a Windows Server 2008R2 or Windows Server ...
tacos_tacos_tacos's user avatar
0 votes
2 answers
1k views

Disabling timer in ACPI on FreeBSD 10

My server is failing to boot because of what I suspect is an error with the timeclock in ACPI, so I'd like to try to disable it in the course of troubleshooting it. Per the handbook: https://www....
tony_perkis666's user avatar
0 votes
1 answer
286 views

SMP kernel sees only one CPU (i7-930) with ACPI enabled

A Gentoo box running a up-to-date SMP kernel sees only one CPU eventhough ACPI is enabled in AmiBIOS. Any ideas why? > uname -a Linux charlie 3.17.7-gentoo #1 SMP Mon Jan 12 19:31:07 CET 2015 ...
svoop's user avatar
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LibVirt (QEMU) Shutting down from inside guest

I am currently running LibVirt with Qemu on Debian Wheezy: Versions: libvirtd (libvirt) 1.2.4 qemu-x86_64 version 2.0.0 (Debian 2.0.0+dfsg-4~bpo70+1), Copyright (c) 2003-2008 Fabrice Bellard It's ...
md_5's user avatar
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4 votes
1 answer
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Can a properly wired reset switch fail to reboot a frozen system?

Context: We rent unmanaged server hardware. The hoster's web dashboard offers a "automatic hardware reset" command (next to a "send ctrl-alt-del" command), but it fails to reboot the machine when the ...
Nils Toedtmann's user avatar
3 votes
1 answer
800 views

Discover source of ACPI interrupts

I have a set of linux boxes, running RHEL 5. All have the same set of packages installed, and the same hardware/BIOS/DRAC versions.I have ~3k ACPI interrupts a second on one CPU, on some, but not all ...
Cian's user avatar
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2 votes
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How to read the address of the XSDT table, as provided by `acpidump`?

I want to access Physical memory in BSD. acpidump -t XSDT > xsdt_dump.asl it is giving: /* RSD PTR: OEM=ALASKA, ACPI_Rev=2.0x (2) XSDT=0x9aae8070, length=36, cksum=164 */ /* XSDT: Length=...
gkreddy's user avatar
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-1 votes
1 answer
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Detect laptop model from a script [closed]

I have portable homedir. I want to include some code to .bashrc, but I want it to be executed on specific models only. It is keybindings code (xmodmap) which reassigns some of keys, so it should be ...
Max Kolesnikov's user avatar
1 vote
1 answer
1k views

Quad Core but Single Core on task manager

ACPI Multiprocessor -> Check 4 Processor shown on Device Manager -> Check 4 Processor shown on Task Manager -> Nope OS -> Windows 2003 Enterprise 32Bit Should I see four processers on the Task ...
randadinata's user avatar
4 votes
2 answers
16k views

Sleep/Suspend and WOL on FreeNAS

I am trying to figure out how to get FreeNAS 8 to sleep when inactive and, ideally, wake on lan activity (or, less ideally, wake on a WOL magic packet). However, as I've tried to search for ...
Timothy R. Butler's user avatar
5 votes
6 answers
55k views

Windows 2008 Server R2 turns itself off

I have a Windows 2008 R2 Server that switchs off on his own. and it does not look like a hardware problem since I can see in the log how all services are stopped and after: Log Name: System ...
NullOrEmpty's user avatar
1 vote
0 answers
1k views

Large Number of ACPI Interrupts

I'm wondering if anyone has seen this before, and could perhaps shed some light on a solution. I'm running Red Hat Enterprise Linux 6.1, fully updated in a text-only server configuration, and the ...
Justin Holewinski's user avatar
2 votes
2 answers
7k views

Problem loading cpufreq module

I'd like to install cpufreq modules on my server . I tried sudo modprobe acpi-cpufreq but got the error FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.18-238.12.1.el5xen/kernel/arch/x86_64/...
kashyapa's user avatar
  • 337
2 votes
2 answers
8k views

Disable ACPI to fix BUG: soft lockup

I am having some trouble with the server that gives me random errors like this: BUG: soft lockup - CPU#0 stuck for 60s! [events/0:38] And the it hangs up until I reboot it. I heard something about ...
Alexandru Trandafir Catalin's user avatar
19 votes
4 answers
33k views

Can KVM suspend or shutdown guests automatically on host shutdown?

We have a CentOS 5.5 KVM host, running guests with various versions of CentOS and possibly other OSes later. We'd like to be able to either (a) automatically send an ACPI shutdown to all guests or (b)...
Andrew Clegg's user avatar
2 votes
1 answer
107 views

Is Ondemand Governor enabled in current HPC clusters?

Will enabling Ondemand GOvernor on HPC cluster help save power ? Are sleep states (C-states) enabled in HPC platforms ? If not, what is the reason behind this ?
kashyapa's user avatar
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4 votes
6 answers
19k views

System hangs while rebooting on Debian

I have Debian (Kernel 2.6.26-2-686) installed on two computers. On one of them it reboots quite finely but I am having following problem with rebooting Debian on my second computer. When i type ...
Uthman's user avatar
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2 votes
2 answers
2k views

Hibernate a CentOS server when inactive

I'm trying to get a CentOS 5.4 server to hibernate when the system has been inactive for a while. By inactive I mean there are no incoming network connections. I can get the system to hibernate and ...
Marnix van Valen's user avatar
3 votes
2 answers
2k views

How can i find the trigger of an acpi event?

My Server shutsdown . Evertime at midnight. The acpi Event power_button is triggered. at /etc/acpi/events/power_button power_button: # care about the power button event=button/power.* action=/usr/...
n00ki3's user avatar
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