View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000359 | AlmaLinux-9 | kernel | public | 2023-01-18 11:17 | 2023-05-21 09:01 |
| Reporter | tchristian | Assigned To | alukoshko | ||
| Priority | normal | Severity | minor | Reproducibility | always |
| Status | confirmed | Resolution | open | ||
| Platform | Dell Optiplex 7050 | OS | AlmaLinux | OS Version | 9.1 |
| Summary | 0000359: Reboot/Poweroff hangs with "block device autoloading is deprecated and will be removed" message | ||||
| Description | Context: AlmaLinux 9.1 updated to latest version (all packages updated, including kernel). Boot and OS installed on a md raid (mdadm) using an SSD (sata) and a NVME module (M2). MDADM is not broken, but it does not behave as expected. Behavior: System hangs for a few minutes repeating this message several times: "block device autoloading is deprecated and will be removed". After a while, the system proceeds to reboot/poweroff. Apparently, there was a modification in kernel (current version of Alma) that was fixed in further versions of kernel (6.x). There is a kernel patch to support block device autoloading (assuming that mdadm will not remove device autoloading very soon - last updates on mdadm code is 1-2 years old). I see the kernel patch as the only alternative for the moment. The patch should enable BLOCK_LEGACY_AUTOLOAD in kernel. | ||||
| Steps To Reproduce | Install Alma 9.1 (latest) on one or more mdadm partitions (both boot and root). Reboot system | ||||
| Additional Information | This behavior was observed on multiple linux distros - all were fixed by either applying the patch or updating kernel to 5.18+ or 6.x | ||||
| Tags | kernel, mdadm, patch, poweroff, reboot, system hangs | ||||
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Maybe related to: https://forums.rockylinux.org/t/shutdown-gets-into-an-infinite-loop-rocky-linux-9-1/8106 https://lkml.org/lkml/2022/8/26/846 Then the patch will be: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4c66a326b5ab784cddd72de07ac5b6210e9e1b06 Is this the one you applied? |
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Thanks for the updates ! As I see it, there are 2 ways to deal with this issue: 1. Either enable BLOCK_LEGACY_AUTOLOAD in kernels 5.14 to 5.18 (since 5.18 the mainstream of kernel reverted to this option to be ON/YES). 2. Apply the patch you mentioned to not freeze the queue even if the legacy option is not ON. Since the kernel folks re-enabled this option, I would go for the first option. The main problem here is that Alma is still using kernel 5.14 - this will be resolved by itself once Alma will reach kernel 5.18+ As a workaround, i would suggest re-enabling the option for kernels 5.14-5.18 directly in the kernel configure/build of Alma What do you think ? |
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In Alma 9.1 (kernel-5.14.0-162.6.1.el9_1), BLOCK_LEGACY_AUTOLOAD is indeed enabled. * Thu Jun 30 2022 Scott Weaver <scweaver@redhat.com> [5.14.0-120.82.el9] rhel: configs: enable BLOCK_LEGACY_AUTOLOAD (Ming Lei) [2083917] * Mon Jun 27 2022 Patrick Talbert <ptalbert@redhat.com> [5.14.0-120.el9] - block: default BLOCK_LEGACY_AUTOLOAD to y (Ming Lei) [2083917] In the RHEL (therefore Alma) kernels, the version number can be misleading as a great number of patches are backported. |
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I now have a 9.1 kernel set that was built with the patch. It is available here: https://toracat.org/test/kernel/4c66a32/ Please test if you can. Note that they are not signed and are offered for testing purposes only. |
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Works perfectly fine! Tested with 5.14.0-162.12.1.4c66a32.el9_1 ! First, I updated all the packages, it ended up with the same version of kernel (mainstream, without the patch)... then i installed the rpms provided by you and I confirm that the behavior is as expected, the system does NOT hang anymore on reboot. Any chance this BLOCK_LEGACY_AUTOLOAD will be set to N in the kernels provided with Alma from now on ? (mainstream).. or at least up to 5.18 ? Thanks again, great work ! |
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@tchristian Great news. Thanks for testing the patched kernel. Now, the kernel you have tested with success has a patch that was referenced in comment 788 above. The only way to get the fix in the Alma kernel is to file a bug report with Red Hat. AlmaLinux is supposed to be a bug-for-bug rebuild of RHEL, so any fix must come from the upstream kernel. Likewise, kernel config options cannot be modified in the Alma kernel. I wonder if you'll be able to file a bug with RH. Here's the link: https://bugzilla.redhat.com/enter_bug.cgi?product=Red%20Hat%20Enterprise%20Linux%209&version=CentOS%20Stream If you are not comfortable doing this, I could do it. However it will be best if someone who can run a test do the submission. |
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I see this same problem in my test VM and also confirm that the kernel provided by @toracat above solves the issue. |
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@stijnhoop Thanks for your report. If no one is going to file a bug with RH, I'll try doing it. That is the only way to get the patch info downstream projects like AlmaLinux. |
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RHBZ filed: https://bugzilla.redhat.com/show_bug.cgi?id=2171340 |
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@tchristian and @stijnhoop The current kernel with the patch (kernel-5.14.0-162.18.1.4c66a32.el9_1.x86_64) is in https://toracat.org/test/kernel/4c66a32/ if you need to update. |
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This issue was fixed in the EL 9.2 GA kernel. The ticket can be closed as 'resolved'. |
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I can confirm that AlmaLinux 9.2 images do not exhibit this problem anymore in my test setup. Many thanks @toracat for providing the workaround in the meantime! |
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@stijnhoop You are quite welcome. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2023-01-18 11:17 | tchristian | New Issue | |
| 2023-01-18 11:17 | tchristian | Tag Attached: kernel | |
| 2023-01-18 11:17 | tchristian | Tag Attached: mdadm | |
| 2023-01-18 11:17 | tchristian | Tag Attached: patch | |
| 2023-01-18 11:17 | tchristian | Tag Attached: poweroff | |
| 2023-01-18 11:17 | tchristian | Tag Attached: reboot | |
| 2023-01-18 11:17 | tchristian | Tag Attached: system hangs | |
| 2023-01-22 11:08 | toracat | Note Added: 0000788 | |
| 2023-01-22 13:56 | tchristian | Note Added: 0000789 | |
| 2023-01-22 17:59 | toracat | Note Added: 0000790 | |
| 2023-01-23 10:47 | toracat | Note Added: 0000791 | |
| 2023-01-30 20:06 | tchristian | Note Added: 0000809 | |
| 2023-01-30 20:23 | toracat | Note Added: 0000810 | |
| 2023-02-18 10:33 | stijnhoop | Note Added: 0000811 | |
| 2023-02-18 18:13 | toracat | Note Added: 0000813 | |
| 2023-02-20 02:24 | toracat | Note Added: 0000816 | |
| 2023-02-20 19:08 | alukoshko | Assigned To | => alukoshko |
| 2023-02-20 19:08 | alukoshko | Status | new => confirmed |
| 2023-03-06 19:24 | toracat | Note Added: 0000835 | |
| 2023-05-18 17:33 | toracat | Note Added: 0000899 | |
| 2023-05-20 09:16 | stijnhoop | Note Added: 0000901 | |
| 2023-05-21 09:01 | toracat | Note Added: 0000903 |
