On 27/10/2022 09:13, Fiona Ebner wrote: > Since kernel 5.15, there is an issue with io_uring when used in > combination with CIFS [0]. Unfortunately, the kernel developers did > not suggest any way to resolve the issue and didn't comment on my > proposed one. So for now, just disable io_uring when the storage is > CIFS, like is done for other storage types that had problematic > interactions. > > It is rather easy to reproduce when writing large amounts of data > within the VM. I used > dd if=/dev/urandom of=file bs=1M count=1000 > to reproduce it consistently, but your mileage may vary. > > Some forum reports about users running into the issue [1][2][3]. > > [0]: https://www.spinics.net/lists/linux-cifs/msg26734.html > [1]: https://forum.proxmox.com/threads/109848/ > [2]: https://forum.proxmox.com/threads/110464/ > [3]: https://forum.proxmox.com/threads/111382/ > > Signed-off-by: Fiona Ebner <f.eb...@proxmox.com> > --- > > Changes from v1: > * Add 'fix #4099'-prefix to commit title. > > PVE/QemuServer.pm | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > >
really unfortunate indeed though, a kernel fix would be nicer, but there's only so much time we can spent waiting on progress there, so ... applied, thanks! _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
