Comment # 2
on bug 107229
from Alexander Tsoy
(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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