From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from proxmox-new.maurer-it.com (proxmox-new.maurer-it.com [94.136.29.106]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E8B2DF7; Tue, 12 Dec 2023 04:50:24 -0800 (PST) Received: from proxmox-new.maurer-it.com (localhost.localdomain [127.0.0.1]) by proxmox-new.maurer-it.com (Proxmox) with ESMTP id BF6D5469C0; Tue, 12 Dec 2023 13:50:21 +0100 (CET) Message-ID: <62363899-d7aa-4f1c-abfa-1f87f0b6b43f@proxmox.com> Date: Tue, 12 Dec 2023 13:50:20 +0100 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: SCSI hotplug issues with UEFI VM with guest kernel >= 6.5 Content-Language: en-US To: Igor Mammedov Cc: Bjorn Helgaas , linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, bhelgaas@google.com, lenb@kernel.org, rafael@kernel.org, Thomas Lamprecht References: <9eb669c0-d8f2-431d-a700-6da13053ae54@proxmox.com> <20231207232815.GA771837@bhelgaas> <20231208164723.12828a96@imammedo.users.ipa.redhat.com> <20231211084604.25e209af@imammedo.users.ipa.redhat.com> <20231212122608.1b4f75ce@imammedo.users.ipa.redhat.com> From: Fiona Ebner In-Reply-To: <20231212122608.1b4f75ce@imammedo.users.ipa.redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Am 12.12.23 um 12:26 schrieb Igor Mammedov: > > it's not necessary, but it would help to find out what's going wrong faster. > Otherwise we would need to fallback to debugging over email. > Are you willing to help with testing/providing debug logs to track down > the cause?. > I submitted the dmesg logs in bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=218255 > Though debug over email would be slow, so our best option is to revert > offending patches until the cause if found/fixed. > >>>>> Do you have to revert both cc22522fd55e2 and 40613da52b13f to make it >>>>> work reliably? If we have to revert something, reverting one would be >>>>> better than reverting both. >>>> >> >> Just reverting cc22522fd55e2 is not enough (and cc22522fd55e2 fixes >> 40613da52b13f so I can't revert just 40613da52b13f). > > With UEFI setup, it still works for me fine with current master. > > Kernel 6.7.0-rc5-00014-g26aff849438c on an x86_64 (ttyS0) > I also built from current master (still 26aff849438c) to verify and it's still broken for me. > > it still doesn't work with Fedora's 6.7.0-0.rc2.20231125git0f5cc96c367f.26.fc40.x86_64 kernel. > However it's necessary to have -smp 4 for it to break, > with -smp 1 it works fine as well. > For me it's (always with build from current master): -smp 1 -> it worked 5 times out of 5 -smp 2 -> it worked 3 times out of 5 -smp 4 -> it worked 0 times out of 5 -smp 8 -> it worked 0 times out of 5 Best Regards, Fiona