From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout-p-102.mailbox.org (mout-p-102.mailbox.org [80.241.56.152]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C256E257841 for ; Sun, 9 Nov 2025 14:17:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.152 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762697850; cv=none; b=cYNWKDL1awFFGpRpauQ/EVpaLroIiDAt5iLbBbT4C8+S//feFc3RueuF+YrhjAbosZoIOoKZVIzLVRbAxNhEekEmN4vK2jTmsCYKrWc6OQ8NJU0L62bkbaJy07WInXFQN6kLNR2Yhs2arGU+F77rMtk7D6r7Lr3yYOup9MqBCYU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762697850; c=relaxed/simple; bh=ThKfPMzeaD8ws10cMRvDQfjD7nQPuMMugmhrnAPAeVU=; h=Content-Type:Message-ID:Date:MIME-Version:To:Cc:From:Subject; b=u3X3E10hTb5wKhd7jph60sO+/wh7XxUS9O9t+t4wr/DjDi0fPozdT+I6z1FMvdU9C95/XQlatC28nXZg/urOQeDLH/S3ZC+LeFz3w9QHbLeMl7X3964tn3NasS4cZXThwBEL5QHKr8fTAO/u5t9FqZ+z0WqHEE/h3dbZGh6M0jY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org; spf=pass smtp.mailfrom=mailbox.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=DOmjCjuE; arc=none smtp.client-ip=80.241.56.152 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mailbox.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="DOmjCjuE" Received: from smtp1.mailbox.org (smtp1.mailbox.org [10.196.197.1]) (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) (No client certificate requested) by mout-p-102.mailbox.org (Postfix) with ESMTPS id 4d4FHF6wgzz9spj; Sun, 9 Nov 2025 15:17:13 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1762697834; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type; bh=QCPIArplsbosxVtNFm2C742+1tyVuf1Y/b90KB9yvVo=; b=DOmjCjuEOt1M8qnEFQ6NQ2USsegUJhVj6/RaxM0VHHW8xoiQlV3fMkYhWonNRdWgxQrIwC mr+FHVTnpHl01YdxPU6S6+KtxwGVYOvhiXIZz5rroWba9ZxInYM2kAzy8HSKXmH6ghxAMk LQ6bjrHjKdl7U1kPPGPqyqu92dxCBYivtVDVVct30ulHMfrRoUyIfnPCGoxSIzLqYKz6Nb 3KCbdA8MypiFziSS/z9eJCDW48k8llv4uXceo+qGecOQa9N4n48h0HHQyg38+bW7Dx0pNp J/aO2m0JWTxhLbGE53FaRd3glpJxD9WvHQQn6HlN0jivFdC5OrlZyykGGMZrQA== Content-Type: multipart/mixed; boundary="------------n86pAtkThxeu6AnKtOTysl3a" Message-ID: <992eaf94-6fbb-4611-9a29-2db2e2148965@mailbox.org> Date: Sun, 9 Nov 2025 15:17:11 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Language: en-US, de-DE To: linux-kernel@vger.kernel.org Cc: linux1394-devel@lists.sourceforge.net From: Erhard Furtner Subject: BUG: spinlock bad magic on CPU#1, irq/39-firewire/245 (v6.18-rc4, ppc64) X-MBO-RS-ID: 86fb7acc6ccc8fafdfc X-MBO-RS-META: 8h3rw1bhtqbm445uwm1okef86e9cbskz This is a multi-part message in MIME format. --------------n86pAtkThxeu6AnKtOTysl3a Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Greetings! Getting this on my PowerMac G5 11,2 at boot on kernel 6.18-rc4: [...] firewire_ohci 0001:03:0e.0: added OHCI v1.0 device as card 0, 8 IR + 8 IT contexts, quirks 0x0 BUG: spinlock bad magic on CPU#1, irq/39-firewire/245 lock: 0xc00000001f672618, .magic: 00000000, .owner: irq/39-firewire/245, .owner_cpu: 1 CPU: 1 UID: 0 PID: 245 Comm: irq/39-firewire Tainted: G N 6.18.0-rc4-PMacG5 #1 PREEMPTLAZY Tainted: [N]=TEST Hardware name: PowerMac11,2 PPC970MP 0x440101 PowerMac Call Trace: [c000000005dafb20] [c000000000bc054c] __dump_stack+0x30/0x54 (unreliable) [c000000005dafb50] [c000000000bc04e4] dump_stack_lvl+0x98/0xd0 [c000000005dafb90] [c0000000000f22a8] spin_dump+0x88/0xb4 [c000000005dafc10] [c0000000000f1d4c] do_raw_spin_unlock+0xdc/0x164 [c000000005dafc50] [c000000000bf65d0] _raw_spin_unlock+0x18/0x68 [c000000005dafc70] [c0003d0013ce1d5c] fw_core_handle_bus_reset+0xa98/0xb64 [firewire_core] [c000000005dafdc0] [c0003d0013d19aec] handle_selfid_complete_event+0x610/0x764 [firewire_ohci] [c000000005dafe80] [c000000000106050] irq_thread_fn+0x40/0x9c [c000000005dafec0] [c000000000105ecc] irq_thread+0x1c0/0x298 [c000000005daff60] [c0000000000b5e54] kthread+0x250/0x280 [c000000005daffe0] [c00000000000bd30] start_kernel_thread+0x14/0x18 This is reproducible and happens every time at boot. The firewire controller in question is the G5s' onboard one: # lspci -s 0001:03:0e.0 -vv 0001:03:0e.0 FireWire (IEEE 1394): Apple Inc. Shasta Firewire (prog-if 10 [OHCI]) Subsystem: Apple Inc. Device 5811 Device tree node: /sys/firmware/devicetree/base/ht@0,f2000000/pci@9/firewire@e Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR-