From nobody Wed Dec 17 05:17:02 2025 X-Original-To: freebsd-hackers@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 4dWMVY37hSz6JywZ for ; Wed, 17 Dec 2025 05:17:09 +0000 (UTC) (envelope-from iio7@protonmail.com) Received: from mail-24429.protonmail.ch (mail-24429.protonmail.ch [109.224.244.29]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "protonmail.com", Issuer "R13" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4dWMVX35xtz3Mx3 for ; Wed, 17 Dec 2025 05:17:08 +0000 (UTC) (envelope-from iio7@protonmail.com) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=protonmail.com header.s=protonmail3 header.b=QshTSZxY; dmarc=pass (policy=quarantine) header.from=protonmail.com; spf=pass (mx1.freebsd.org: domain of iio7@protonmail.com designates 109.224.244.29 as permitted sender) smtp.mailfrom=iio7@protonmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=protonmail.com; s=protonmail3; t=1765948625; x=1766207825; bh=ZJXe7VSrPbS6ikf+310wximIIdBHfZ5QPdEH+6BuWNg=; h=Date:To:From:Subject:Message-ID:Feedback-ID:From:To:Cc:Date: Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector; b=QshTSZxYvdhUPQqOItYECarnGiIwczIXTTp/LxyCqWcwUxgPHIyvt1DWjjSaI9zB5 C/cxis/UEbkvnXH+5Gi5tPTWqnRMSNrYIVgXyIns8dqa94zBHZiHeGXMNCQBckpm2m E5sy+p+yY2Wo4yF/ZwMNpnBckLWhnKl+FpTDgo4AzWDIUh3SmjWsoZBlWwIgl6rQNj q1adJPoP6yFsazk1XfeiuiXk5ZH6TvxcxXbnaSso9nuwBRv9LzlySVOw/i42sBIrRh AXmLpERr5y5OFGqRt/9Y1wvoYpEOK1f8PF6alWDm/6FTZiUP0m8QIHMFger/KWF0a2 y+2reOm6PY7EA== Date: Wed, 17 Dec 2025 05:17:02 +0000 To: "freebsd-hackers@freebsd.org" From: Martin Subject: Prevent spin-up of USB HD after upgrading to FreeBSD 15 Message-ID: Feedback-ID: 31965842:user:proton X-Pm-Message-ID: 2797dc2b299f81ac216c114ddcdd62645ccd500d List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Spamd-Bar: ---- X-Spamd-Result: default: False [-4.40 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-1.000]; DMARC_POLICY_ALLOW(-0.50)[protonmail.com,quarantine]; RWL_MAILSPIKE_EXCELLENT(-0.40)[109.224.244.29:from]; R_DKIM_ALLOW(-0.20)[protonmail.com:s=protonmail3]; R_SPF_ALLOW(-0.20)[+ip4:109.224.244.0/24]; MIME_GOOD(-0.10)[text/plain]; FREEMAIL_ENVFROM(0.00)[protonmail.com]; RCVD_IN_DNSWL_NONE(0.00)[109.224.244.29:from]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_ONE(0.00)[1]; FREEMAIL_FROM(0.00)[protonmail.com]; ASN(0.00)[asn:62371, ipnet:109.224.244.0/24, country:CH]; MISSING_XM_UA(0.00)[]; RCVD_COUNT_ZERO(0.00)[0]; MLMMJ_DEST(0.00)[freebsd-hackers@freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; TO_DN_EQ_ADDR_ALL(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; ARC_NA(0.00)[]; DKIM_TRACE(0.00)[protonmail.com:+] X-Rspamd-Queue-Id: 4dWMVX35xtz3Mx3 I posted this in "questions", but think this might be the more correct place. I have an external Toshiba USB drive that automatically spins down after about 1 minute of idle. After upgrading to FreeBSD 15, the drive keeps spinning up again about every 5 minutes even though it is not being used and isn't mounted. This didn't happen in FreeBSD 14.3. The drive is running ZFS. I have monitored both /var/log/messages and daemon.log using tail to see if anything happens, but nothing goes on in those logs when it happens. If I export the drive rather than just unmount then it doesn't happen. So I am guessing that it's something ZFS specific/related perhaps. I have also tested the same drive on the same machine using Artix Linux and the drive stays spinned down, even when fully mounted using ZFS. I have used "top -s 0.1" in order to see if I can get a glimpse at something which might run on FreeBSD, but nothing is started. What has changed from 14.3 to 15 that might cause this annoying behavior? How do I track down what's spinning up my drive? Kind regards.