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Wed, 24 Dec 2025 12:16:40 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5BOCGeKa040814 for bugs@FreeBSD.org; Wed, 24 Dec 2025 12:16:40 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 291915] server hung, login hangs on [zfs] Date: Wed, 24 Dec 2025 12:16:40 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 15.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: dch@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Bug reports List-Archive: https://lists.freebsd.org/archives/freebsd-bugs List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-bugs@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D291915 Bug ID: 291915 Summary: server hung, login hangs on [zfs] Product: Base System Version: 15.0-RELEASE Hardware: arm64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: dch@freebsd.org This issue is present *only* on/after OpenZFS 2.4.0 rc3 was merged, during = 15.0 release cycle builds, and still in 15.0-RELEASE official. There is no additional information available in logs, dmesg, and a console login is impossible. I've had at least 10 of these since moving to 15.0-RELEASE, on varying aarc= h64 systems. I don't see this on amd64, but I don't have any amd64 servers in serious use anymore. Symptoms: everything hangs, but network & firewall still respond. Neither s= sh nor ipmi console login is possible - see below: Instruction Set Attributes 1 =3D <> Instruction Set Attributes 2 =3D <> Processor Features 0 =3D Processor Features 1 =3D Processor Features 2 =3D <> Memory Model Features 0 =3D Memory Model Features 1 =3D <8bit VMID> Memory Model Features 2 =3D <32bit CCIDX,48bit VA> Memory Model Features 3 =3D <> M FreeBSD/arm64 (straylight.skunkwerks.at) (ttyu0) login: root <----- we are expecting to get a password prompt here but it never arrives ^t repeatedly load: 1.52 cmd: login 4992 [zfs] 1352304.72r 0.00u 0.00s 0% 240k load: 2.60 cmd: login 4992 [zfs] 1352620.39r 0.00u 0.00s 0% 240k load: 2.60 cmd: login 4992 [zfs] 1352621.66r 0.00u 0.00s 0% 240k ... I've tried getting a kernel dump via ctrl-alt-esc unsuccessfully. --=20 You are receiving this mail because: You are the assignee for the bug.=