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A comment on The Linux kernel can spawn processes on its own. Parent comment

Re:The Linux kernel can spawn processes on its own by CameronNemo on Saturday June 11, 2022 @07:57PM (#31709717)
Yep, and aiui kthreadd on Linux always has a PID of 2. If you are ever trying to filter out kernel processes from ps output (and usermode helpers, apparently), you can check if the pid is 2 or ppid is 2.
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