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 EC8B484A5F; Tue, 16 Apr 2024 12:19:13 +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=1713269954; cv=none; b=Cyt3fbhsNNBRGEHlMx4hHoNsi0XEX5eLJ4wr/GLW/Gdu0Ow0RClNgQe72TR8O29XZrfHfXYKTGT/ppU1AxSaZNQS0Qs/6jqYHeML+XI1HEe0pIgMZnbw0omUBQPYawNMQkvRiY6Kb/B0zS3vn9898IC9i85CzdraCKgGUo0FUw4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713269954; c=relaxed/simple; bh=Kytz+UD5dTwK2Cv6gkJ/t5JrQQBUJsCTbZJPyt6gz1w=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=tKy0EOFfANUkKM61wQmSGvD/ctPXS2ieZ4bvRDH38lwYQKVJhx91T3nq8HHUfXvDIQUpfUkY9kH5n2ovF1SKfMgalCBFI0qsankzJHPH9IE9GM6vb+Hxhr53VchD/JU8aQQHUQmmFa+upH7g13SSj+R+5o8q2BPVEayutWLhKK4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TgfRWkUm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TgfRWkUm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B90FEC2BD10; Tue, 16 Apr 2024 12:19:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713269953; bh=Kytz+UD5dTwK2Cv6gkJ/t5JrQQBUJsCTbZJPyt6gz1w=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=TgfRWkUm04+Oe+cJmh3pJcySnutmqfJD5WwdEGv3DxScDd9WncSfwQfo2g0W0Wlbp WrSdvkzjmB1dpfMGcJRL67+ze9o26VkVTSK2uJ4vcGNYnpaEQirSzxKibTgzY9ZLOg q2l1E3Xb7Fj3HoKc8YIOc0RHZnnhwo9TSnZm5/jpkeZbLmRyJc1EOfDm4mS6chZ0CR gZfzpXqYXjBOzoRgTe9F6HjLRL2EYhVVQeOp1TCoOLLMdjLT3oc/1gNSPpsNevQ8cx 3POspS4Y/dsZ9h3OxrcAtcnY8y7ATFZTs8SAvx0wBb954Mv7cy7WD0F+BZyter8wO+ eF09JssL8N++A== Date: Tue, 16 Apr 2024 13:19:09 +0100 From: Lee Jones To: Ben Greear Cc: LKML , linux-leds@vger.kernel.org, Johannes Berg Subject: Re: 6.9.0-rc2+ kernel hangs on boot (bisected, maybe LED related) Message-ID: <20240416121909.GU2399047@google.com> References: <30f757e3-73c5-5473-c1f8-328bab98fd7d@candelatech.com> <30819e01-43ce-638f-0cc6-067d6a8d03c7@candelatech.com> <89a9eec3-337f-3c9f-6bbe-00a26a15287c@candelatech.com> <20240411070718.GD6194@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Mon, 15 Apr 2024, Ben Greear wrote: > On 4/11/24 00:07, Lee Jones wrote: > > On Wed, 03 Apr 2024, Ben Greear wrote: > > > > > On 4/2/24 10:38, Ben Greear wrote: > > > > On 4/2/24 09:37, Ben Greear wrote: > > > > > Hello, > > > > > > > > > > Sometime between rc1 and today's rc2, my system quit booting. > > > > > I'm not seeing any splats, it just stops.  Evidently before > > > > > sysrq is enabled. > > > > > > > > > > [  OK  ] Started Flush Journal to Persistent Storage. > > > > > [  OK  ] Started udev Coldplug all Devices. > > > > >           Starting udev Wait for Complete Device Initialization... > > > > > [  OK  ] Listening on Load/Save RF …itch Status /dev/rfkill Watch. > > > > > [  OK  ] Created slice system-lvm2\x2dpvscan.slice. > > > > >           Starting LVM2 PV scan on device 8:19... > > > > >           Starting LVM2 PV scan on device 8:3... > > > > > [  OK  ] Started Device-mapper event daemon. > > > > > iwlwifi 0000:04:00.0: WRT: Invalid buffer destination: 0 > > > > > sysrq: This sysrq operation is disabled. > > > > > > > > > > I can start a bisect, but in case anyone knows the answer already, please let me know. > > > > > > > > > > Thanks, > > > > > Ben > > > > > > > > > > > > > So, deadlock I guess.... > > > > Does this help you in any way? > > > > https://lore.kernel.org/all/bbcdbc1b-44bc-4cf8-86ef-6e6af2b009c3@gmail.com/ > > > Hello Lee, > > I cannot see how that patch above would fix my issues since I am not using that driver, > but possibly some similar change needs to be made to iwlwifi. > > Johannes, you had another suggestion: changing iwlwifi's request_module() to request_module_nowait() in > iwl_req_fw_callback() > > Is that still best thing to try in your opinion? I mean the general principle, rather than the exact patch. Yes, you would need to apply it to your own use-case. -- Lee Jones [李琼斯]