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Closed
Tracked by #8915
lf- opened this issue Jun 10, 2021 · 4 comments · Fixed by #11956
Closed
Tracked by #8915

rust-lang/rust: guide recommends disabling proc macro server. we should make it work #9201

lf- opened this issue Jun 10, 2021 · 4 comments · Fixed by #11956
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A-config configuration A-macro macro expansion

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lf- commented Jun 10, 2021 

{
    "rust-analyzer.checkOnSave.overrideCommand": [
        "./x.py",
        "check",
        "--json-output"
    ],
    "rust-analyzer.rustfmt.overrideCommand": [
      "./build/x86_64-unknown-linux-gnu/stage0/bin/rustfmt"
    ],
    "rust-analyzer.cargo.runBuildScripts": false,
    // NOTE: Yes this is the opposite of the recommended configuration, but that config is probably suggested due to this as yet unfiled bug!!
    "rust-analyzer.procMacro.enable": true
}

Opened compiler/rustc_hir/src/hir.rs and had the proc macro server segfault. I have #9047 applied locally, so I hope it's not that ABI thing but I cannot promise it.

Rust version rustc 1.54.0-nightly (657bc0188 2021-05-31).

Although I think the following things are probably useless/uninformative, I'll give them anyway.

Backtrace of one of the segfaults 

Core was generated by `/home/jade/dev/rust-analyzer/target/release/rust-analyzer proc-macro'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f2f089385aa in __memmove_avx_unaligned_erms () from /usr/lib/libc.so.6
=> 0x00007f2f089385aa <__memmove_avx_unaligned_erms+154>:	48 8b 4c 16 f8	mov    rcx,QWORD PTR [rsi+rdx*1-0x8]
warning: Missing auto-load script at offset 0 in section .debug_gdb_scripts
of file /home/jade/dev/rust/target/debug/deps/libcargo_test_macro-9f841b7b0695698d.so.
Use `info auto-load python-scripts [REGEXP]' to list them.
(gdb) bt
#0  0x00007f2f089385aa in __memmove_avx_unaligned_erms () from /usr/lib/libc.so.6
#1  0x000055dea0d148be in _$LT$proc_macro_srv..proc_macro..bridge..buffer..Buffer$LT$T$GT$$u20$as$u20$core..convert..From$LT$alloc..vec..Vec$LT$T$GT$$GT$$GT$::from::extend_from_slice::h6ade0e4a8360cfd5 ()
#2  0x00007f2f03427e8b in proc_macro::bridge::buffer::Buffer::extend_from_slice () at library/proc_macro/src/bridge/buffer.rs:99
#3  proc_macro::bridge::buffer::{{impl}}::write_all ()
    at library/proc_macro/src/bridge/buffer.rs:129
#4  proc_macro::bridge::rpc::{{impl}}::encode<()> ()
    at library/proc_macro/src/bridge/rpc.rs:212
#5  proc_macro::bridge::rpc::{{impl}}::encode<()> ()
    at library/proc_macro/src/bridge/rpc.rs:227
#6  proc_macro::bridge::client::{{impl}}::new::{{closure}} ()
    at library/proc_macro/src/bridge/client.rs:242
#7  proc_macro::bridge::client::{{impl}}::with::{{closure}} () at library/proc_macro/src/bridge/client.rs:336
#8  proc_macro::bridge::client::{{impl}}::with::{{closure}}::{{closure}} ()
    at library/proc_macro/src/bridge/client.rs:293
#9  proc_macro::bridge::scoped_cell::ScopedCell::replace ()
    at library/proc_macro/src/bridge/scoped_cell.rs:75
#10 proc_macro::bridge::client::{{impl}}::with::{{closure}} () at library/proc_macro/src/bridge/client.rs:291
--Type  for more, q to quit, c to continue without paging--c
#11 std::thread::local::LocalKey::try_with,closure-0,proc_macro::bridge::client::Ident> () at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/std/src/thread/local.rs:400
#12 std::thread::local::LocalKey::with,closure-0,proc_macro::bridge::client::Ident> () at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/std/src/thread/local.rs:376
#13 proc_macro::bridge::client::BridgeState::with () at library/proc_macro/src/bridge/client.rs:290
#14 proc_macro::bridge::Bridge::with () at library/proc_macro/src/bridge/client.rs:329
#15 proc_macro::bridge::client::Ident::new () at library/proc_macro/src/bridge/client.rs:237
#16 0x00007f2f033e55e4 in proc_macro2::imp::Ident::new (string=..., span=...) at /home/jade/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.24/src/wrapper.rs:668
#17 0x00007f2f033ea969 in proc_macro2::Ident::new (string=..., span=...) at /home/jade/.cargo/registry/src/github.com-1ecc6299db9ec823/proc-macro2-1.0.24/src/lib.rs:895
#18 0x00007f2f031a4de0 in synstructure::sanitize_ident (s=...) at /home/jade/.cargo/registry/src/github.com-1ecc6299db9ec823/synstructure-0.12.4/src/lib.rs:261
#19 0x00007f2f031a90d4 in synstructure::Structure::impl_internal (self=0x7ffdf8ce56f0, path=..., body=..., safety=..., mode=...) at /home/jade/.cargo/registry/src/github.com-1ecc6299db9ec823/synstructure-0.12.4/src/lib.rs:1967
#20 0x00007f2f03144c06 in synstructure::Structure::bound_impl (self=0x7ffdf8ce56f0, path=..., body=...) at /home/jade/.cargo/registry/src/github.com-1ecc6299db9ec823/synstructure-0.12.4/src/lib.rs:1724
#21 0x00007f2f03126007 in rustc_macros::serialize::decodable_body (s=..., decoder_ty=...) at compiler/rustc_macros/src/serialize.rs:98
#22 0x00007f2f031245da in rustc_macros::serialize::decodable_derive (s=...) at compiler/rustc_macros/src/serialize.rs:32
#23 0x00007f2f0315e40b in rustc_macros::Decodable (i=...) at /home/jade/.cargo/registry/src/github.com-1ecc6299db9ec823/synstructure-0.12.4/src/macros.rs:100
#24 0x00007f2f0314f54e in core::ops::function::FnOnce::call_once proc_macro::TokenStream,(proc_macro::TokenStream)> () at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/core/src/ops/function.rs:227
#25 0x00007f2f03129ef6 in proc_macro::bridge::client::{{impl}}::expand1::run::{{closure}} proc_macro::TokenStream> (input=...) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/proc_macro/src/bridge/client.rs:410
#26 0x00007f2f03129593 in proc_macro::bridge::client::run_client::{{closure}}::{{closure}} () at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/proc_macro/src/bridge/client.rs:377
#27 0x00007f2f0315b0d7 in proc_macro::bridge::scoped_cell::{{impl}}::set::{{closure}} () at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/proc_macro/src/bridge/scoped_cell.rs:80
#28 0x00007f2f0315b633 in proc_macro::bridge::scoped_cell::ScopedCell::replace (self=0x55dea275efe8, replacement=..., f=...) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/proc_macro/src/bridge/scoped_cell.rs:75
#29 0x00007f2f0315b0b4 in proc_macro::bridge::scoped_cell::ScopedCell::set (self=0x55dea275efe8, value=..., f=...) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/proc_macro/src/bridge/scoped_cell.rs:80
#30 0x00007f2f03129d8c in proc_macro::bridge::client::{{impl}}::enter::{{closure}}<(),closure-0> (state=0x55dea275efe8) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/proc_macro/src/bridge/client.rs:325
#31 0x00007f2f0313a6ef in std::thread::local::LocalKey>::try_with,closure-1,()> (self=0x7f2f035fe430, f=...) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/std/src/thread/local.rs:400
#32 0x00007f2f0313a27a in std::thread::local::LocalKey>::with,closure-1,()> (self=0x7f2f035fe430, f=...) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/std/src/thread/local.rs:376
#33 0x00007f2f0311874a in proc_macro::bridge::Bridge::enter<(),closure-0> (self=..., f=...) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/proc_macro/src/bridge/client.rs:325
#34 0x00007f2f031293b4 in proc_macro::bridge::client::run_client::{{closure}} () at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/proc_macro/src/bridge/client.rs:370
#35 0x00007f2f0310cef0 in std::panic::{{impl}}::call_once<(),closure-0> (self=..., _args=()) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/std/src/panic.rs:347
#36 0x00007f2f03140bba in std::panicking::try::do_call,()> (data=0x7ffdf8ce6478) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/std/src/panicking.rs:401
#37 0x00007f2f03140c9d in __rust_try () from /home/jade/dev/rust/target/debug/deps/librustc_macros-4d53846fbb49253f.so
#38 0x00007f2f03140af1 in std::panicking::try<(),std::panic::AssertUnwindSafe> (f=...) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/std/src/panicking.rs:365
#39 0x00007f2f0310cf20 in std::panic::catch_unwind,()> (f=...) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/std/src/panic.rs:434
#40 0x00007f2f0312929f in proc_macro::bridge::client::run_client (bridge=..., f=...) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/proc_macro/src/bridge/client.rs:369
#41 0x00007f2f03129eac in proc_macro::bridge::client::{{impl}}::expand1::run proc_macro::TokenStream> (bridge=..., f=0x7f2f0315e1d0 ) at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/proc_macro/src/bridge/client.rs:410
#42 0x000055dea0d1a3f6 in proc_macro_srv::proc_macro::bridge::server::run_server ()
#43 0x000055dea0cffd78 in proc_macro_srv::dylib::Expander::expand ()
#44 0x000055dea0cf3210 in proc_macro_srv::ProcMacroSrv::expand ()
#45 0x000055dea0ced084 in proc_macro_srv::cli::run ()
#46 0x000055dea0cd366a in rust_analyzer::main ()
#47 0x000055dea0cab243 in std::sys_common::backtrace::__rust_begin_short_backtrace ()
#48 0x000055dea0cd6649 in std::rt::lang_start::_$u7b$$u7b$closure$u7d$$u7d$::ha24510cfe1a368c5 ()
#49 0x000055dea1ac19b9 in core::ops::function::impls::{{impl}}::call_once<(),Fn<()>> () at /rustc/657bc01888e6297257655585f9c475a0801db6d2/library/core/src/ops/function.rs:259
#50 std::panicking::try::do_call<&Fn<()>,i32> () at library/std/src/panicking.rs:401
#51 std::panicking::try> () at library/std/src/panicking.rs:365
#52 std::panic::catch_unwind<&Fn<()>,i32> () at library/std/src/panic.rs:434
#53 std::rt::lang_start_internal () at library/std/src/rt.rs:34
#54 0x000055dea0cd5c42 in main ()
Ugly r-a request logs. maybe useful? unsure 

[DEBUG proc_macro_api::msg] > {"ExpansionMacro":{"macro_body":{"delimiter":null,"token_trees":[{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\" A fixed-size bitset type with a dense representation.\""}}}]}},{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\"\""}}}]}},{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\" NOTE: Use [`GrowableBitSet`] if you need support for resizing after creation.\""}}}]}},{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\"\""}}}]}},{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\" `T` is an index type, typically a newtyped `usize` wrapper, but it can also\""}}}]}},{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\" just be `usize`.\""}}}]}},{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\"\""}}}]}},{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\" All operations that involve an element will panic if the element is equal\""}}}]}},{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\" to or greater than the domain size. All operations that involve two bitsets\""}}}]}},{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\" will panic if the bitsets have differing domain sizes.\""}}}]}},{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\"\""}}}]}},{"Leaf":{"Ident":{"text":"pub","id":0}}},{"Leaf":{"Ident":{"text":"struct","id":1}}},{"Leaf":{"Ident":{"text":"BitSet","id":2}}},{"Leaf":{"Punct":{"char":"<","spacing":"Alone","id":3}}},{"Leaf":{"Ident":{"text":"T","id":4}}},{"Leaf":{"Punct":{"char":">","spacing":"Alone","id":5}}},{"Subtree":{"delimiter":{"id":6,"kind":"Brace"},"token_trees":[{"Leaf":{"Ident":{"text":"domain_size","id":7}}},{"Leaf":{"Punct":{"char":":","spacing":"Alone","id":8}}},{"Leaf":{"Ident":{"text":"usize","id":9}}},{"Leaf":{"Punct":{"char":",","spacing":"Alone","id":10}}},{"Leaf":{"Ident":{"text":"words","id":11}}},{"Leaf":{"Punct":{"char":":","spacing":"Alone","id":12}}},{"Leaf":{"Ident":{"text":"Vec","id":13}}},{"Leaf":{"Punct":{"char":"<","spacing":"Alone","id":14}}},{"Leaf":{"Ident":{"text":"Word","id":15}}},{"Leaf":{"Punct":{"char":">","spacing":"Joint","id":16}}},{"Leaf":{"Punct":{"char":",","spacing":"Alone","id":17}}},{"Leaf":{"Ident":{"text":"marker","id":18}}},{"Leaf":{"Punct":{"char":":","spacing":"Alone","id":19}}},{"Leaf":{"Ident":{"text":"PhantomData","id":20}}},{"Leaf":{"Punct":{"char":"<","spacing":"Alone","id":21}}},{"Leaf":{"Ident":{"text":"T","id":22}}},{"Leaf":{"Punct":{"char":">","spacing":"Joint","id":23}}},{"Leaf":{"Punct":{"char":",","spacing":"Alone","id":24}}}]}}]},"macro_name":"Decodable","attributes":null,"lib":"/home/jade/dev/rust/target/debug/deps/librustc_macros-4d53846fbb49253f.so","env":[["CARGO_PKG_LICENSE",""],["CARGO_PKG_LICENSE_FILE",""],["CARGO_PKG_DESCRIPTION",""],["CARGO_PKG_NAME","rustc_index"],["CARGO_PKG_VERSION_MAJOR","0"],["CARGO_MANIFEST_DIR","/home/jade/dev/rust/compiler/rustc_index"],["CARGO_PKG_VERSION","0.0.0"],["CARGO_PKG_VERSION_PATCH","0"],["CARGO_PKG_AUTHORS","The Rust Project Developers"],["CARGO","cargo"],["CARGO_PKG_VERSION_MINOR","0"],["CARGO_PKG_VERSION_PRE",""],["CARGO_PKG_REPOSITORY",""]]}}
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[DEBUG proc_macro_api::msg] > {"ExpansionMacro":{"macro_body":{"delimiter":null,"token_trees":[{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\" A fixed-sized bitset type represented by an integer type. Indices outwith than the range\""}}}]}},{"Leaf":{"Punct":{"char":"#","spacing":"Alone"}}},{"Subtree":{"delimiter":{"kind":"Bracket"},"token_trees":[{"Leaf":{"Ident":{"text":"doc"}}},{"Leaf":{"Punct":{"char":"=","spacing":"Alone"}}},{"Leaf":{"Literal":{"text":"\" representable by `T` are considered set.\""}}}]}},{"Leaf":{"Ident":{"text":"pub","id":0}}},{"Leaf":{"Ident":{"text":"struct","id":1}}},{"Leaf":{"Ident":{"text":"FiniteBitSet","id":2}}},{"Leaf":{"Punct":{"char":"<","spacing":"Alone","id":3}}},{"Leaf":{"Ident":{"text":"T","id":4}}},{"Leaf":{"Punct":{"char":":","spacing":"Alone","id":5}}},{"Leaf":{"Ident":{"text":"FiniteBitSetTy","id":6}}},{"Leaf":{"Punct":{"char":">","spacing":"Alone","id":7}}},{"Subtree":{"delimiter":{"id":8,"kind":"Parenthesis"},"token_trees":[{"Leaf":{"Ident":{"text":"pub","id":9}}},{"Leaf":{"Ident":{"text":"T","id":10}}}]}},{"Leaf":{"Punct":{"char":";","spacing":"Alone","id":11}}}]},"macro_name":"Decodable","attributes":null,"lib":"/home/jade/dev/rust/target/debug/deps/librustc_macros-4d53846fbb49253f.so","env":[["CARGO_PKG_LICENSE",""],["CARGO_PKG_LICENSE_FILE",""],["CARGO_PKG_DESCRIPTION",""],["CARGO_PKG_NAME","rustc_index"],["CARGO_PKG_VERSION_MAJOR","0"],["CARGO_MANIFEST_DIR","/home/jade/dev/rust/compiler/rustc_index"],["CARGO_PKG_VERSION","0.0.0"],["CARGO_PKG_VERSION_PATCH","0"],["CARGO_PKG_AUTHORS","The Rust Project Developers"],["CARGO","cargo"],["CARGO_PKG_VERSION_MINOR","0"],["CARGO_PKG_VERSION_PRE",""],["CARGO_PKG_REPOSITORY",""]]}}
[WARN hir_expand::db] fail on macro_parse: (reason: ProcMacroError(Unknown("Empty result")) macro_call: /// A fixed-sized bitset type represented by an integer type. Indices outwith than the range
/// representable by `T` are considered set.
#[derive(Copy, Clone, Eq, PartialEq, Decodable,
 Encodable)]
pub struct FiniteBitSet(pub T);) parents: 
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[ERROR proc_macro_api::process] proc macro server crashed, server process state: Ok(Some(ExitStatus(ExitStatus(139)))), server request error: Os { code: 32, 
kind: BrokenPipe, message: "Broken pipe" }

cc #8915
@lnicola
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lnicola commented Jun 10, 2021

That extend_from_slice sounds like #9047 (comment).

@lf-
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lf- commented Jun 10, 2021

That extend_from_slice sounds like #9047 (comment).

Oh, shoot, you're probably right. Still, this recommendation to turn off proc macro server has been in the dev guide for at least a few months, and it should be investigated why it is needed, as it worsens dev experience.

@flodiebold
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Enabling proc macros requires us to compile the proc macros, and AFAIK currently there's no way to override the cargo check command we do for that.

@lf- lf- changed the title rust-lang/rust: proc macro server crashes rust-lang/rust: guide recommends disabling proc macro server. we should make it work Jun 10, 2021
@jonas-schievink jonas-schievink mentioned this issue Jun 10, 2021
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@jyn514 jyn514 mentioned this issue Jun 26, 2021
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@Veykril Veykril added A-macro macro expansion A-config configuration labels Dec 14, 2021
@eddyb
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eddyb commented Jan 23, 2022

Current failure modes I've observed:

  • this is undebuggable because RA doesn't show the errors occurring in the build script/proc macro build, only the summary with the number of errors, and the crate
  • since this is a plain cargo check command, AFAICT, the default toolchain has to be recent enough - rustup update nightly made some 2 (unknown) core errors go away
  • using cargo check, I've been able to observe the biggest issue of them all: because of the custom sysroot shenanigans, cargo check manages to add library/core as a dependency to a bunch of crates (via rustc-std-workspace-core AFAICT), while (nightly) rustc still loads (nightly) sysroot core

But really, regardless of whether RA should run cargo check or x.py check (with some way to let RA know the location of the proc macros, presumably), a lot of the above don't even apply if RA doesn't attempt to cargo check everything.

env CFG_RELEASE= CFG_RELEASE_CHANNEL= RUSTC_INSTALL_BINDIR= cargo check -p rustc_driver

This succeeded for me. It might not always, but it has a better chance than cargo check.
So RA could simply add an option for "crate to cargo check for build scripts/proc macros", and one for "env vars for build scripts/proc macros" (tho that can be worked around in the compiler source as well, if we want to make the end vars optional).

@fee1-dead fee1-dead mentioned this issue Apr 11, 2022
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@bors bors closed this as completed in 15844bf Apr 13, 2022
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feat: allow customizing the command for running build scripts fee1-dead/rust-analyzer
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@eddyb @lnicola @flodiebold @Veykril @lf-