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To: Proxmox VE development discussion <pve-devel@lists.proxmox.com>,
Fabian Ebner <f.ebner@proxmox.com>
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Subject: [pve-devel] applied: [PATCH kernel] Backport two io-wq fixes
relevant for io_uring
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On 23.11.21 12:59, Fabian Ebner wrote:
> There were quite a few reports in the community forum about Windows
> VMs with SATA disks not working after upgrading to kernel 5.13.
> Issue was reproducible during the installation of Win2019 (suggested
> by Thomas), and it's already fixed in 5.15. Bisecting led to
> io-wq: split bounded and unbounded work into separate lists
> as the commit fixing the issue.
>
> Indeed, the commit states
> Fixes: ecc53c48c13d ("io-wq: check max_worker limits if a worker transitions bound state")
> which is present as a backport in ubuntu-impish:
> f9eb79f840052285408ae9082dc4419dc1397954
>
> The first backport
> io-wq: fix queue stalling race
> also sounds nice to have and additionally served as a preparation for
> the second one to apply more cleanly.
>
> Signed-off-by: Fabian Ebner <f.ebner@proxmox.com>
> ---
> .../0010-io-wq-fix-queue-stalling-race.patch | 72 +++
> ...ded-and-unbounded-work-into-separate.patch | 415 ++++++++++++++++++
> 2 files changed, 487 insertions(+)
> create mode 100644 patches/kernel/0010-io-wq-fix-queue-stalling-race.patch
> create mode 100644 patches/kernel/0011-io-wq-split-bounded-and-unbounded-work-into-separate.patch
>
>
applied, thanks!!
This fixes my reproducer (windows + SATA) nicely and Dominik also got their issue with
mass clone + setup of nested PVE on Debian use case working again.