From nobody Thu Jan 02 23:31:48 2025 X-Original-To: bugs@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 4YPNJj331cz5k6g0 for ; Thu, 02 Jan 2025 23:31:49 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (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 "mxrelay.nyi.freebsd.org", Issuer "R11" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4YPNJj1mdLz4Dqg for ; Thu, 2 Jan 2025 23:31:49 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1735860709; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=NXyF+8wGI+W85wFORX+SQgs/392kZYPc+T59UtNC9pM=; b=UYU331w7LsV0Rjkl3Z04I52xufPofS7oaTUszKuqN+Ji5D6GUDSto29NMprKIMSY1t/4BW qtyC3JrbMCEtcbHNeHRw9LzK0OQ5R3yfFoNz6OSU0XESNNotJKhBC04qIGKi3pFlZ+FNVx emA2Q/PduyeKw2gqAgeEY9oNyfvgtsrssx1LDayYYIh6JrvYh5VDK3hKOag0n3hCfneUNj Vu2Z8kzv/ygsVK7kkPt6erPoachWx6A4bPO8uh6dYjPg5YRXSylLAroYtCflnYBZ6lP5jb z5we9Sg3+apP/UvQuUpLTo1nH37qqwNi1hzx1dMdiKU4Kl3OPtBnKDjhpcaVLg== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1735860709; a=rsa-sha256; cv=none; b=Q2Iu+Em4JB1IYEyiEkKFcZtU1lUvKOf4qTZCDwv9DGDmfRy4NPJHKl15chdgbFudci7sqN jlELyyUADMh+5Mb7Zh/YyBNTrZYAJzROhjRd0jVsH14c78mIXOw1ETbhoXrdTV1sWBkpg3 uEVCumNPtB8gujGgbrHb12TvlvTMou8M8s1kEzwHv7IiK06Zf/2j8Uf6GCTyWXOPUOwcX1 +rmwwAdU+7fJpP5p3ZdzEG7wZW2g5NaMVMNshFPvpuYnWb3yODWY0zZzsAAT2ZV8FDJ+tj IMGOCKkFNWR5cgHnDemteFiBteJ4kQ5ARMgq525pTKsO49vnP1EVIsmUtqhCDQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4YPNJj1J5dzy0B for ; Thu, 02 Jan 2025 23:31:49 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 502NVn6G008606 for ; Thu, 2 Jan 2025 23:31:49 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 502NVnXb008605 for bugs@FreeBSD.org; Thu, 2 Jan 2025 23:31:49 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 283807] panic: Fatal trap 12: page fault while in kernel mode on FreeBSD-14.2-RELEASE Date: Thu, 02 Jan 2025 23:31:48 +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: 14.2-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: marklmi26-fbsd@yahoo.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable 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=3D283807 Mark Millard changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |marklmi26-fbsd@yahoo.com --- Comment #1 from Mark Millard --- More context from Discord's FreeBSD kernel Channel: JordanG: Okay, the code is buggy. umtx_pi_alloc(M_NOWAIT) is called. The fl= ag M_NOWAITmeans that NULL is returned if the memory allocation request cannot= be satisfied immediately. The call to the memory allocation routine uma_zalloc fails and returns NULL. umtx_pi_alloc() receives the NULL pointer and immediately, without checking it, tries to access a structure's field via t= he pointer. And also: JordanG: @maxfx You've discovered a genuine bug that is also present in Fre= eBSD 15-CURRENT. --=20 You are receiving this mail because: You are the assignee for the bug.=