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NixOS
Exception: std::__1::system_error: mutex lock failed: Invalid argument
Describe the bug
error:
… while evaluating the attribute 'optionalValue.value'
at /nix/store/ybmnblw90230yl4p0l18ghwx9ry597bz-source/lib/modules.nix:1227:5:
1226|
1227| optionalValue = if isDefined then { value = mergedValue; } else { };
| ^
1228| };
… while evaluating a branch condition
at /nix/store/ybmnblw90230yl4p0l18ghwx9ry597bz-source/lib/modules.nix:1227:21:
1226|
1227| optionalValue = if isDefined then { value = mergedValue; } else { };
| ^
1228| };
… while evaluating definitions from `/nix/store/dlg5pdiaijls9qmyjrsrcplqjvsisxpn-source/modules/system':
… while evaluating the option `home-manager.users.cassou.launchd.agents.syncthing-init.enable':
… while evaluating definitions from `/nix/store/mbhbwy5ycdh1cb8w0v8bc7dslbp8lxbw-source/modules/services/syncthing.nix':
… while evaluating the option `home-manager.users.cassou.services.syncthing.settings.folders':
… while evaluating definitions from `/nix/store/hv5hzxsv9fkm9vb8zag9jcrf71rslc61-source/secrets/syncthing/macbook':
(stack trace truncated; use '--show-trace' to show the full, detailed trace)
error: expected a set but found a path: /nix/store/hv5hzxsv9fkm9vb8zag9jcrf71rslc61-source/secrets/syncthing/folders
Nix crashed. This is a bug. Please report this at https://github.com/NixOS/nix/issues with the following information included:
Exception: std::__1::system_error: mutex lock failed: Invalid argument
Stack trace:
0# nix::(anonymous namespace)::onTerminate() in /nix/store/8v5k2101fr0qwabbqb8l3pqd807lk6mk-nix-2.28.5/bin/nix
1# std::__terminate(void (*)()) in /nix/store/8qhdaryhrcvz2mfgvhci2j63qa22bjsl-libcxx-19.1.7/lib/libc++abi.1.0.dylib
2# __cxa_get_exception_ptr in /nix/store/8qhdaryhrcvz2mfgvhci2j63qa22bjsl-libcxx-19.1.7/lib/libc++abi.1.0.dylib
3# __cxxabiv1::failed_throw(__cxxabiv1::__cxa_exception*) in /nix/store/8qhdaryhrcvz2mfgvhci2j63qa22bjsl-libcxx-19.1.7/lib/libc++abi.1.0.dylib
4# std::__1::__throw_system_error[abi:ne190107](std::__1::error_code, char const*) in /nix/store/8qhdaryhrcvz2mfgvhci2j63qa22bjsl-libcxx-19.1.7/lib/libc++.1.0.dylib
5# std::__1::__throw_system_error[abi:ne190107](std::__1::error_code, char const*) in /nix/store/8qhdaryhrcvz2mfgvhci2j63qa22bjsl-libcxx-19.1.7/lib/libc++.1.0.dylib
6# std::__1::mutex::try_lock() in /nix/store/8qhdaryhrcvz2mfgvhci2j63qa22bjsl-libcxx-19.1.7/lib/libc++.1.0.dylib
7# nix::updateWindowSize() in /nix/store/8v5k2101fr0qwabbqb8l3pqd807lk6mk-nix-2.28.5/lib/libnixutil.dylib
8# nix::signalHandlerThread(unsigned int) in /nix/store/8v5k2101fr0qwabbqb8l3pqd807lk6mk-nix-2.28.5/lib/libnixutil.dylib
9# void* std::__1::__thread_proxy[abi:fe190107]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct>>, void (*)(unsigned int), unsigned int>>(void*) in /nix/store/8v5k2101fr0qwabbqb8l3pqd807lk6mk-nix-2.28.5/lib/libnixutil.dylib
10# _pthread_start in /usr/lib/system/libsystem_pthread.dylib
Steps To Reproduce
I have code like this:
{
inherit (../folders) foo;
}
with ../folders/default.nix looking like this:
{
foo = { ... };
}
Expected behavior
I would have expected an error message "expected a set but found a path" but not a trace.
Metadata
nix-env (Nix) 2.28.5
Additional context
Checklist
- [x] checked latest Nix manual (source)
- [x] checked open bug issues and pull requests for possible duplicates
Add :+1: to issues you find important.
Same on macOS 26.0.1.
But in my case, running it the second time didn't trigger this.
Exception: std::__1::system_error: mutex lock failed: Invalid argument
Stack trace:
0# nix::(anonymous namespace)::onTerminate() in /nix/store/p556nqjd3a2l0hdph9vixbcmgag4n9ai-nix-3.8.2/bin/nix
1# std::__terminate(void (*)()) in /nix/store/qh3kz2ywxgq1fl4ngkbav298nmgybnaq-libcxx-19.1.7/lib/libc++abi.1.0.dylib
2# __cxa_get_exception_ptr in /nix/store/qh3kz2ywxgq1fl4ngkbav298nmgybnaq-libcxx-19.1.7/lib/libc++abi.1.0.dylib
3# __cxxabiv1::failed_throw(__cxxabiv1::__cxa_exception*) in /nix/store/qh3kz2ywxgq1fl4ngkbav298nmgybnaq-libcxx-19.1.7/lib/libc++abi.1.0.dylib
4# std::__1::__throw_system_error[abi:ne190107](std::__1::error_code, char const*) in /nix/store/qh3kz2ywxgq1fl4ngkbav298nmgybnaq-libcxx-19.1.7/lib/libc++.1.0.dylib
5# std::__1::__throw_system_error[abi:ne190107](std::__1::error_code, char const*) in /nix/store/qh3kz2ywxgq1fl4ngkbav298nmgybnaq-libcxx-19.1.7/lib/libc++.1.0.dylib
6# std::__1::mutex::try_lock() in /nix/store/qh3kz2ywxgq1fl4ngkbav298nmgybnaq-libcxx-19.1.7/lib/libc++.1.0.dylib
7# nix::getWindowSize() in /nix/store/l2zszm08w155c8z4f6pcisvbpqcd6yvp-determinate-nix-util-3.8.2/lib/libnixutil.dylib
8# nix::ProgressBar::draw(nix::ProgressBar::State&) in /nix/store/j8if2r99f136gr4iw2ryykzskrr260sz-determinate-nix-main-3.8.2/lib/libnixmain.dylib
9# nix::ProgressBar::ProgressBar(bool)::'lambda'()::operator()() const in /nix/store/j8if2r99f136gr4iw2ryykzskrr260sz-determinate-nix-main-3.8.2/lib/libnixmain.dylib
10# void* std::__1::__thread_proxy[abi:fe190107]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct>>, nix::ProgressBar::ProgressBar(bool)::'lambda'()>>(void*) in /nix/store/j8if2r99f136gr4iw2ryykzskrr260sz-determinate-nix-main-3.8.2/lib/libnixmain.dylib
11# _pthread_start in /usr/lib/system/libsystem_pthread.dylib
/Users/ken/.nix-profile/bin/home-manager: line 552: 73934 Abort trap: 6 nix build "${extraArgs[@]}" "${PASSTHROUGH_OPTS[@]}"
EDIT: Not so same, our stack trace seems different
@DamienCassou Can you reproduce that with a more recent Nix version?
I couldn't reproduce it (either with 2.28.5 or master on macOS). I tried:
> cat foo.nix ~/crash/x
{
inherit (../folders) foo;
}
> nix eval --file ./foo.nix ~/crash/x
{ foo = «error: expected a set but found a path: /Users/ephemeraladmin/crash/folders»; }
@SuperKenVery Do you have a reproducer for that?
No, even running the same code the second time didn't trigger it. It's probably safe to ignore my report 😆
I just produced this in a CI run:
NixOS-packages.json-ga.json> Done NixOS-packages.json-ga.json
building '/nix/store/ldj68ywh0kx6kcw5r5ffwgn8m7lzv4nx-NixOS-packages.json-gd.json.drv'...
NixOS-packages.json-gd.json> Building NixOS-packages.json-gd.json
NixOS-packages.json-gc.json> Nix crashed. This is a bug. Please report this at https://github.com/NixOS/nix/issues with the following information included:
NixOS-packages.json-gc.json>
NixOS-packages.json-gc.json> Exception: std::__1::system_error: mutex lock failed: Invalid argument
NixOS-packages.json-gc.json> Stack trace:
NixOS-packages.json-gc.json> 0# nix::(anonymous namespace)::onTerminate() in /nix/store/r8yv70fsy7rnh9cfc7pp3066l10jdn3q-nix-2.32.4/bin/nix
NixOS-packages.json-gc.json> 1# std::__terminate(void (*)()) in /usr/lib/libc++abi.dylib
NixOS-packages.json-gc.json> 2# __cxa_get_exception_ptr in /usr/lib/libc++abi.dylib
NixOS-packages.json-gc.json> 3# __cxxabiv1::failed_throw(__cxxabiv1::__cxa_exception*) in /usr/lib/libc++abi.dylib
NixOS-packages.json-gc.json> 4# std::__1::__throw_system_error[abi:ne190102](std::__1::error_code, char const*) in /usr/lib/libc++.1.dylib
NixOS-packages.json-gc.json> 5# std::__1::__throw_system_error[abi:ne190102](std::__1::error_code, char const*) in /usr/lib/libc++.1.dylib
NixOS-packages.json-gc.json> 6# std::__1::mutex::try_lock() in /usr/lib/libc++.1.dylib
NixOS-packages.json-gc.json> 7# nix::getWindowSize() in /nix/store/3h6f9yv76g2fc4mvl3qjkf432s4xc5b9-nix-util-2.32.4/lib/libnixutil.2.32.4.dylib
NixOS-packages.json-gc.json> 8# nix::ProgressBar::draw(nix::ProgressBar::State&) in /nix/store/s7vzwallhi807yva6491xzqq27vlwzch-nix-main-2.32.4/lib/libnixmain.2.32.4.dylib
NixOS-packages.json-gc.json> 9# nix::ProgressBar::ProgressBar(bool)::'lambda'()::operator()() const in /nix/store/s7vzwallhi807yva6491xzqq27vlwzch-nix-main-2.32.4/lib/libnixmain.2.32.4.dylib
NixOS-packages.json-gc.json> 10# void* std::__1::__thread_proxy[abi:se190102]<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct>>, nix::ProgressBar::ProgressBar(bool)::'lambda'()>>(void*) in /nix/store/s7vzwallhi807yva6491xzqq27vlwzch-nix-main-2.32.4/lib/libnixmain.2.32.4.dylib
NixOS-packages.json-gc.json> 11# _pthread_start in /usr/lib/system/libsystem_pthread.dylib
NixOS-packages.json-gc.json>
NixOS-packages.json-gc.json> /nix/var/nix/builds/nix-5020-825674937/.attr-0l2nkwhif96f51f4amnlf414lhl4rv9vh8iffyp431v6s28gsr90: line 16: 23509 Abort trap: 6 NIX_STATE_DIR=$TMPDIR NIX_PATH= nix --extra-experimental-features nix-command eval --impure --json --offline --quiet --read-only --show-trace --expr '(import ./build-packages.nix { inherit (import /nix/store/k4hmx6m5ck6fhx16hxf92mgqgmws58vq-source {}) lib; }).buildPackages' > $out
The installed used https://releases.nixos.org/nix/nix-2.32.4/nix-2.32.4-aarch64-darwin.tar.xz to install nix.
https://github.com/NuschtOS/search/actions/runs/19916942764/job/57097802479?pr=280
@SuperSandro2000 also told me that this is related to tight memory pressure in CI.
