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 DB8102566F5; Mon, 4 Aug 2025 12:21:22 +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=1754310083; cv=none; b=ZH8ZIq3QP7scCUlPhEoVcjGp/d7l0+P90Ka1livWC09wchfRbIAiDM2PYRr2MAJAlIpraDsR4OH5Lhgpwv5Kz5RW5kRN64X2g0IWysfjioRJeG8hm3zuEZtAF5XuGnirL6YpwQ4r8/5j9U0q2NdfeVX3t8vc+ypaO19VWHeF52I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754310083; c=relaxed/simple; bh=GVIsR9UI1altV1kTtPcm/oryGSkEOWVRMx3oTcoTi0E=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=EBDnCZr1gxKsFu+MdAUC90vgUtLeqHlkzqKilYB9H33h+B4D6nUG0TD67Tho8P2cjMI+s8zUlHAtDrGD01a+DQeqL+dVJAfqXiBKQk/d6eS7BaQBocH+y0hcwIoSfNfQDQNf7rAhZKCFN7PnbJeRwCfK4rrvglREe2nUk/oJzYQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NdhYXMYF; 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="NdhYXMYF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E2477C4CEF0; Mon, 4 Aug 2025 12:21:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754310082; bh=GVIsR9UI1altV1kTtPcm/oryGSkEOWVRMx3oTcoTi0E=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=NdhYXMYF2kB3fulUFPbo2J9FQYtA2TD011batkMCZyIMlr/UOolu/T4sYpzeVSAmP QDNrZKVJzBrTGaphb+5EZZ9XeuoXhFq3c7d8dIEPiAIZ/W7vIrdlvHH7E6Dn5cCVLB +Qc/ByIvGFYuEsMP7tQL13P4wpB3w+trYOWG1oI5hfQxe72auVOiPnVkRL+OaiIoVT ylv4YwSiIN3PztHNfcKbMBQFXeJTiWWmo+oU4ggdtciVtO0yLhyz9U5PzsWHKW2a/3 TxxT9+MmT4yx4D7eWfMLakTD3v8H73Nj3lzeuWMhocaemttC6lxAz2unBW3CTOTz7w dg/kaO4Mb0BPQ== Date: Mon, 4 Aug 2025 14:21:17 +0200 From: Christian Brauner To: Jani Nikula , Thorsten Leemhuis Cc: Andy Mindful , linux-kernel@vger.kernel.org, regressions@lists.linux.dev, linux-pm@vger.kernel.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-acpi@vger.kernel.org, rafael@kernel.org, ville.syrjala@linux.intel.com, tglx@linutronix.de Subject: Re: [REGRESSION] tty lockup and WWAN loss after hibernate/suspend in 6.8+ on ThinkPad X1 Carbon Gen 10 Message-ID: <20250804-canceln-lokal-6bd98d42ab9c@brauner> References: <642d439ea1be8e48ee5c47fd3921a786452fb931@intel.com> <0b15e33603a46f6cc7ad7d09a156044f11367169@intel.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: <0b15e33603a46f6cc7ad7d09a156044f11367169@intel.com> On Mon, Aug 04, 2025 at 11:15:46AM +0300, Jani Nikula wrote: > On Sun, 03 Aug 2025, Andy Mindful wrote: > > Here what I have from bisecting, please let me know if it makes things > > clearer or not. > > Doesn't point at graphics, anyway. > > Cc: Christian. No idea, the listmount() changes look completely unrelated and it's way back in v6.8 so absolutely no clue. Should probably go talk to hibernate/suspend/power people or talk to Thorsten to bisect this further. > > > BR, > Jani. > > > > > > git bisect log > > git bisect start > > # status: waiting for both good and bad commits > > # good: [6fc5460ed8dd0edf29e7c5cfb1ef9b1aa04208a1] Linux 6.7.11 > > git bisect good 6fc5460ed8dd0edf29e7c5cfb1ef9b1aa04208a1 > > # status: waiting for bad commit, 1 good commit known > > # bad: [6613476e225e090cc9aad49be7fa504e290dd33d] Linux 6.8-rc1 > > git bisect bad 6613476e225e090cc9aad49be7fa504e290dd33d > > # skip: [0dd3ee31125508cd67f7e7172247f05b7fd1753a] Linux 6.7 > > git bisect skip 0dd3ee31125508cd67f7e7172247f05b7fd1753a > > # good: [ba5afb9a84df2e6b26a1b6389b98849cd16ea757] fs: rework > > listmount() implementation > > git bisect good ba5afb9a84df2e6b26a1b6389b98849cd16ea757 > > # good: [61da593f4458f25c59f65cfd9ba1bda570db5db7] Merge tag > > 'media/v6.8-2' of > > git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media > > git bisect good 61da593f4458f25c59f65cfd9ba1bda570db5db7 > > # bad: [e38f734add21d75d76dbcf7b214f4823131c1bae] Merge tag > > 'staging-6.8-rc1' of > > git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging > > git bisect bad e38f734add21d75d76dbcf7b214f4823131c1bae > > # bad: [5d197e97fb106c09d3d013be341e5961fd70ec8a] Merge tag > > 'hsi-for-6.8' of > > git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi > > git bisect bad 5d197e97fb106c09d3d013be341e5961fd70ec8a > > # good: [1b1934dbbdcf9aa2d507932ff488cec47999cf3f] Merge tag > > 'docs-6.8-2' of git://git.lwn.net/linux > > git bisect good 1b1934dbbdcf9aa2d507932ff488cec47999cf3f > > # good: [1b1934dbbdcf9aa2d507932ff488cec47999cf3f] Merge tag > > 'docs-6.8-2' of git://git.lwn.net/linux > > git bisect good 1b1934dbbdcf9aa2d507932ff488cec47999cf3f > > # bad: [8c9244af4dc8680a453e759331f0c93d5bde1898] Merge tag > > 'kvm-x86-svm-6.8' of https://github.com/kvm-x86/linux into HEAD > > git bisect bad 8c9244af4dc8680a453e759331f0c93d5bde1898 > > # bad: [783288010035e4c250a0b6491a4642cdb8d30548] KVM: x86: add > > missing "depends on KVM" > > git bisect bad 783288010035e4c250a0b6491a4642cdb8d30548 > > # bad: [783288010035e4c250a0b6491a4642cdb8d30548] KVM: x86: add > > missing "depends on KVM" > > git bisect bad 783288010035e4c250a0b6491a4642cdb8d30548 > > # bad: [861deac3b092f37b2c5e6871732f3e11486f7082] Linux 6.7-rc7 > > git bisect bad 861deac3b092f37b2c5e6871732f3e11486f7082 > > > > # being on a 861deac3b092 > > git bisect bad > > The merge base ba5afb9a84df2e6b26a1b6389b98849cd16ea757 is bad. > > This means the bug has been fixed between > > ba5afb9a84df2e6b26a1b6389b98849cd16ea757 and > > [1b1934dbbdcf9aa2d507932ff488cec47999cf3f > > 61da593f4458f25c59f65cfd9ba1bda570db5db7 > > 6fc5460ed8dd0edf29e7c5cfb1ef9b1aa04208a1 > > ba5afb9a84df2e6b26a1b6389b98849cd16ea757]. > > > > Thanks. > > > > вт, 29 лип. 2025 р. о 13:20 Jani Nikula пише: > >> > >> On Tue, 29 Jul 2025, Andy Mindful wrote: > >> > Please let me know if any further information or testing is required. > >> > >> Likely the quickest way to find the root cause is to bisect the issue. > >> > >> > >> BR, > >> Jani. > >> > >> -- > >> Jani Nikula, Intel > > -- > Jani Nikula, Intel