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Fri, 19 Sep 2025 21:59:36 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 58JLxaJ6087602 for bugs@FreeBSD.org; Fri, 19 Sep 2025 21:59:36 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 288826] Booting a Read-Only system with /entropy file panic it while reading it with dd Date: Fri, 19 Sep 2025 21:59:36 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: xmirya@gmail.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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=3D288826 --- Comment #7 from xmirya@gmail.com --- At least in my case it's caused by "options RANDOM_FENESTRASX" in the kernel config, it's enough to add it to GENERIC in 15-STABLE to cause reproducible crash on amd64 (tried on older/newer hardware); summing up: 1. 15-STABLE works well with with GENERIC kernel 2. 15-STABLE with GENERIC+RANDOM_FENESTRASX panics in fxrng_event_processor= () when writing to /dev/random the first time (`dd if=3D/entropy of=3D/dev/ran= dom bs=3D4096` as done by rc on boot) 3. 14-STABLE with GENERIC+RANDOM_FENESTRASX works well --=20 You are receiving this mail because: You are the assignee for the bug.=