From nobody Thu Mar 28 15:20:16 2024 X-Original-To: freebsd-questions@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4V56fq3wvkz5G6y9 for ; Thu, 28 Mar 2024 15:20:19 +0000 (UTC) (envelope-from steve@copacetic.net) Received: from starlight.copacetic.net (starlight.copacetic.net [166.78.105.238]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4V56fp5D0Sz4pp3 for ; Thu, 28 Mar 2024 15:20:18 +0000 (UTC) (envelope-from steve@copacetic.net) Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of steve@copacetic.net designates 166.78.105.238 as permitted sender) smtp.mailfrom=steve@copacetic.net Received: from [172.16.200.151] (unknown [73.149.127.197]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by starlight.copacetic.net (Postfix) with ESMTPSA id 824484A8DA for ; Thu, 28 Mar 2024 15:20:17 +0000 (UTC) Message-ID: Date: Thu, 28 Mar 2024 11:20:16 -0400 List-Id: User questions List-Archive: https://lists.freebsd.org/archives/freebsd-questions List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-questions@freebsd.org X-BeenThere: freebsd-questions@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: freebsd-questions@FreeBSD.org Content-Language: en-US From: Steve Bernacki Subject: 14.0-RELEASE-p6 High acpi_task_* CPU utilization Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spamd-Bar: -- X-Spamd-Result: default: False [-2.93 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.74)[-0.742]; R_SPF_ALLOW(-0.20)[+ip4:166.78.105.238]; ONCE_RECEIVED(0.10)[]; MIME_GOOD(-0.10)[text/plain]; XM_UA_NO_VERSION(0.01)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; RCVD_COUNT_ONE(0.00)[1]; MIME_TRACE(0.00)[0:+]; FREEFALL_USER(0.00)[steve]; ASN(0.00)[asn:19994, ipnet:166.78.64.0/18, country:US]; R_DKIM_NA(0.00)[]; ARC_NA(0.00)[]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DMARC_NA(0.00)[copacetic.net]; PREVIOUSLY_DELIVERED(0.00)[freebsd-questions@freebsd.org]; MLMMJ_DEST(0.00)[freebsd-questions@FreeBSD.org]; RCVD_TLS_ALL(0.00)[] X-Rspamd-Queue-Id: 4V56fp5D0Sz4pp3 Hello, I've just installed FreeBSD 14.0-RELEASE-p6 (GENERIC) on a AWOW Mini PC [1]. Completely idle, top(1) reports unusually high system CPU usage:   CPU:  0.0% user,  0.0% nice, 27.7% system,  0.0% interrupt, 72.3% idle Running top -SH reveals that the CPU time is being consumed by kernel acpi_tasks:   PID USERNAME    PRI NICE   SIZE    RES STATE    C   TIME    WCPU COMMAND    11 root        187 ki31     0B    64K CPU0     0  29:22  97.15% idle{idle: cpu0}    11 root        187 ki31     0B    64K RUN      2  22:05  74.21% idle{idle: cpu2}    11 root        187 ki31     0B    64K CPU3     3  22:11  73.37% idle{idle: cpu3}    11 root        187 ki31     0B    64K RUN      1  21:59  70.21% idle{idle: cpu1}     0 root          8    -     0B  1456K -        0   8:08  29.74% kernel{acpi_task_1}     0 root          8    -     0B  1456K CPU3     3   8:30  28.67% kernel{acpi_task_2}     0 root          8    -     0B  1456K CPU1     1   8:31  26.09% kernel{acpi_task_0} The BIOS configurables for this system are pretty sparse; I'm not able to see or adjust any ACPI settings. Relevant (I hope) snippets from dmesg below: ====== CPU: Intel(R) Celeron(R) CPU N3450 @ 1.10GHz (1094.62-MHz K8-class CPU)   Origin="GenuineIntel"  Id=0x506c9  Family=0x6  Model=0x5c Stepping=9 Features=0xbfebfbff Features2=0x4ff8ebb7   AMD Features=0x2c100800   AMD Features2=0x101   Structured Extended Features=0x2294e283   XSAVE Features=0xf   VT-x: PAT,HLT,MTF,PAUSE,EPT,UG,VPID,VID,PostIntr   TSC: P-state invariant, performance statistics real memory  = 6442450944 (6144 MB) avail memory = 5978120192 (5701 MB) Event timer "LAPIC" quality 600 ACPI APIC Table: [snip] smbios0: at iomem 0xf05e0-0xf05fe smbios0: Version: 3.0, BCD Revision: 3.0 aesni0: acpi0: acpi0: Power Button (fixed) unknown: I/O range not supported ACPI Error: No handler for Region [ECF2] (0xfffff800038c2680) [EmbeddedControl] (20221020/evregion-292) ACPI Error: Region EmbeddedControl (ID=3) has no handler (20221020/exfldio-428) ACPI Error: Aborting method \134_SB.PCI0.SBRG.H_EC.BAT0._STA due to previous error (AE_NOT_EXIST) (20221020/psparse-689) cpu0: on acpi0 attimer0: port 0x40-0x43,0x50-0x53 irq 0 on acpi0 [snip] Timecounter "ACPI-fast" frequency 3579545 Hz quality 900 acpi_timer0: <32-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0 acpi_ec0: port 0x62,0x66 on acpi0 pcib0: port 0xcf8-0xcff on acpi0 pci0: on pcib0 ====== Relevant kenv output: ====== acpi.oem="ALASKA" acpi.revision="2" acpi.rsdp="0x000f05b0" acpi.rsdt="0x793a5030" acpi.xsdt="0x00000000793a50c0" acpi.xsdt_length="36" acpi_dsdt_load="NO" acpi_dsdt_name="/boot/acpi_dsdt.aml" acpi_dsdt_type="acpi_dsdt" acpi_video_load="NO" hint.acpi_throttle.0.disabled="1" smbios.bios.reldate="09/30/2022" smbios.bios.revision="4.6" smbios.bios.vendor="American Megatrends Inc." smbios.bios.version="4.06" smbios.chassis.type="Mini PC" smbios.memory.enabled="6291456" smbios.planar.maker="AWOW Technology Co., Ltd." smbios.planar.product="PC BOX" smbios.system.product="AK34" ====== The few search results for similar issues I've found suggest trying to disable ACPI altogether, which just results in the kernel immediately panicking when booting. Any suggestions on how I can troubleshoot this further? Thank you Steve [1] https://www.amazon.com/gp/product/B0B4RMLCH7/?th=1