This isn't a UNIX thing, it happens on Windows too. See non-alertable kernel-mode waits in [1], [2]. [1] https://docs.microsoft.com/en-us/windows-hardware/driv

This isn't a UNIX thing, it happens on Windows too. See non-alertable kernel-mode waits in [1], [2]. [1] https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/wdm/nf-wdm-kewaitforsingleobject https://docs.microsoft.com/en-us/windows-hardware/drivers/dd... [2] https://docs.microsoft.com/en-us/windows-hardware/drivers/kernel/waits-and-apcs https://docs.microsoft.com/en-us/windows-hardware/drivers/ke...