On 30.11.2020 14:12, Timo Rothenpieler wrote:
Quick update: I applied that commit on top of the 5.4.80 Kernel, and
have not been able to reproduce the issue anymore in a quick test.
Will leave it running like this for a bit and see if it's fixed.
I don't know if this is in any way correct though.
Partial success, I guess.
The use after free did not occur again, but users still get their
singularity pulls stuck, waiting on copy_file_range() to return.
Must have just been a coincidence that those two always happened at the
same time.
It works fine on a fresh mount, until at some random point all attempts
lead to it getting stuck.
Re-Mounting, rebooting client or rebooting server all seem to resolve it
temporarily, until it happens again.
