From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 BABA4216E12 for ; Thu, 9 Jan 2025 12:09:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736424571; cv=none; b=H0hz8qD38mps9lNa9dzOasgSgegQwMEwZ2XiGIBWoJ2NzdQeyf1RQbvcS+3XUg4u2tnvJ7vyXE2D2E+dn4BTR6Sj+8rKf8T1YHEMjX6icwVh11s8OJZpOcwlbxhPjAtqKfFbBHDbRnHFfsUc+zxSZmyqblvRja1aUkjDsdI5d7Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736424571; c=relaxed/simple; bh=PfOdMefM04LnGaKBSYn4PGv7hXzw2dPA40MH8q7Gki0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=MCzwQq17WXCWHJwY1149iCwvSVprTgsAl6JiRE9bbQquMSXzgaCtch5ynNHe6ZmQoZAQwT1A0TW0aJC6EsOsy4eWCstPDqJ78Bqe9OX0Jdrp/0gfSn5e5TCYvYOtrGQ8j5K6LiQ1Z2epc5vMD6Th/v3kp3sE44xauFp9fdtBbeQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=p2Jul8h3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="p2Jul8h3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D9E10C4CED6; Thu, 9 Jan 2025 12:09:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1736424571; bh=PfOdMefM04LnGaKBSYn4PGv7hXzw2dPA40MH8q7Gki0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=p2Jul8h3+NcHKhKtHZnpiTOsy0BsaGacqQfqe1AqCk5M0aaS4XuULPqNYnrJS0AHt wQm2SHcQ3YrcIAAA5P9ExyTuT3a97S98jGjgCt1Z+5QECrIEtjuwKK/E4M5UyaR/Vq bk5L17fBWNNUDGqvv8K3AwWafNAziy2CMyGcKFj4= Date: Thu, 9 Jan 2025 13:09:28 +0100 From: Greg KH To: Robert NEMKIN Cc: linux-usb@vger.kernel.org Subject: Re: usb crash? Message-ID: <2025010936-anthem-escapist-6e66@gregkh> References: Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Jan 09, 2025 at 12:29:05PM +0100, Robert NEMKIN wrote: > Hello everybody! > > I saw a possibly kernel bug. > It's a debian trixie with kernel compiled by myself. > With 6.12.6 everything seems to be ok. > With 6.12.7 and 6.12.8 I saw crasges in dmesg. > I attached dmesg of some tries and lsusb. > > Thanks for any hints. > > Robert > > dec 28 07:44:08 brick kernel: ------------[ cut here ]------------ > dec 28 07:44:08 brick kernel: WARNING: CPU: 0 PID: 296 at kernel/trace/trace_events.c:577 trace_event_raw_init+0x159/0x670 > dec 28 07:44:08 brick kernel: Modules linked in: xe(+) gpu_sched drm_suballoc_helper drm_gpuvm drm_exec drm_ttm_helper hid_generic usbhid hid i915 i2c_algo_bit drm_buddy drm_display_helper cec xhci_pci rc_core xhci_hcd ahci ttm libahci drm_kms_helper libata nvme intel_lpss_pci crc32_pclmul usbcore thunderbolt crc32c_intel drm scsi_mod igc intel_lpss i2c_i801 nvme_core idma64 scsi_common i2c_smbus video usb_common fan wmi This isn't a USB issue, it's a tracing core issue with the xe driver. It is fixed in commit afc6717628f9 ("tracing: Have process_string() also allow arrays") which will be in the next 6.12.9 kernel release in a few minutes. It's a harmless warning for now, no need to worry. thanks, greg k-h