https://bugs.freedesktop.org/show_bug.cgi?id=107229
--- Comment #2 from Alexander Tsoy <alexan...@tsoy.me> ---
(In reply to Alexander Tsoy from comment #0)
> With 4.14 kernels the game process is unkillable so it hangs somewhere
> in the kernel space. With 4.17 kernels it can be killed but this
> takes some time.
The process actually can be killed in a while loop.
Perf report:
$ sudo perf report | grep metro | head
33.33% metro metro [.]
cbackend_OGL::delayed_upload
31.56% metro [kernel.vmlinux] [k] rb_prev
2.07% metro [kernel.vmlinux] [k] alloc_iova
0.20% metro [kernel.vmlinux] [k] __switch_to
0.18% metro [kernel.vmlinux] [k]
native_load_gs_index
0.13% metro [kernel.vmlinux] [k]
__x86_indirect_thunk_rax
0.12% metro [kernel.vmlinux] [k]
entry_SYSCALL_64
0.08% metro [kernel.vmlinux] [k] __schedule
0.08% metro [kernel.vmlinux] [k] read_tsc
0.07% metro libc-2.26.so [.] __nanosleep
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