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
vnepogodin
added a commit
to CachyOS/scx
that referenced
this pull request
Dec 12, 2024
Into trait was calling the Into<&SupportedSched> which was calling
Into<SupportedSched> and so on.
```
#0 0x622450e96149 in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#1 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#2 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#3 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#4 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#5 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#6 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#7 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#8 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#9 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#10 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#11 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#12 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#13 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#14 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
```
etsal
pushed a commit
to etsal/scx
that referenced
this pull request
Dec 16, 2024
Into trait was calling the Into<&SupportedSched> which was calling
Into<SupportedSched> and so on.
```
#0 0x622450e96149 in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#1 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#2 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#3 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#4 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#5 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#6 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#7 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#8 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#9 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#10 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#11 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#12 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
sched-ext#13 0x622450e91af3 in _$LT$T$u20$as$u20$core..convert..Into$LT$U$GT$$GT$::into::h9481856c4f80c765 /home/vl/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/convert/mod.rs:759:9
sched-ext#14 0x622450e9614a in scx_loader::_$LT$impl$u20$core..convert..From$LT$scx_loader..SupportedSched$GT$$u20$for$u20$$RF$str$GT$::from::h13ba9d4271e33441 /tmp/scx/rust/scx_loader/src/lib.rs:60:9
```
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