README: Add instructions for Arch Linux #7
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Byte-Lab
approved these changes
Dec 6, 2023
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| In addition to terminating the program, there are two more ways to disable a | ||
| sched_ext scheduler - `sysrq-S` and the watchdog timer. Ignoring kernel | ||
| bugs, the worst damage a sched_ext scheduler can do to a system is starving | ||
| some threads until the watchdog timer triggers. |
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Should we mention using bpftool here as well? Seems useful given that a kernel need not ship with sysrq support
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How do you unload with bpftool?
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bpftool struct_ops unreg name simple_ops would do it for scx_simple, found with:
[root@kerneltest047.02.dkl1 ~]# bpftool map list | grep simple
340: array name simple_b.rodata flags 0x480
341: array name simple_b.bss flags 0x400
342: struct_ops name simple_ops flags 0x0
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root@test ~ [255]# bpftool struct_ops unregister name simple_ops
Error: can't unload sched_ext_ops simple_ops id 20: Operation not supported
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