[pve-devel] applied: [PATCH kernel] add patch to fix issue with large IO requests

[Thomas Lamprecht]

Am 07/03/2023 um 15:19 schrieb Fiona Ebner:
> Several people reported IO-related issues since kernel 6.1.6 [0].
> Things got better with 6.1.10, but apparently the issues are not fully
> resolved (e.g. [1]).
> 
> I ran into an issue with PBS backup of a VM with passed-through disks
> (error with 6.1.6, hang with 6.1.10+) and found that the issue did not
> occur anymore with v6.3-rc1. Bisecting what fixed the issue led to the
> commit in this patch. The hope is that it fixes some other issues too.
> 
> The commit has a CC-stable tag for 5.15+, but telling from the absence
> of user reports, it was much less likely to trigger before 6.1.x (it's
> not clear what x is, because of the other issue in 6.1.6). The commit
> says it depends on 613b14884b85 ("block: handle bio_split_to_limits()
> NULL return") which is already present as a3f1c82e0413 ("block:
> handle bio_split_to_limits() NULL return") in the Ubuntu tree.
> 
> [0]: https://forum.proxmox.com/threads/119483/post-530365
> [1]: https://forum.proxmox.com/threads/119483/post-537991
> 
> Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
> ---
>  ...w-multiple-bios-for-IOCB_NOWAIT-issu.patch | 69 +++++++++++++++++++
>  1 file changed, 69 insertions(+)
>  create mode 100644 patches/kernel/0018-block-don-t-allow-multiple-bios-for-IOCB_NOWAIT-issu.patch
> 
>

applied, thanks!