Webpack out of memory error with postcss-loader 7.2.x #638
Description
Bug report
Every production webpack build is failing with an out of memory error once I update to postcss-loader 7.2.x. As soon as I downgrade back to 7.1.x, it works again.
Actual Behavior
<--- Last few GCs --->
[90131:0x7242530] 65732 ms: Scavenge (reduce) 3798.4 (3990.6) -> 3798.3 (3991.9) MB, 4.9 / 0.0 ms (average mu = 0.926, current mu = 0.892) allocation failure;
[90131:0x7242530] 67086 ms: Mark-sweep (reduce) 4144.9 (4337.8) -> 3968.3 (4149.8) MB, 645.9 / 0.1 ms (+ 102.3 ms in 1953 steps since start of marking, biggest step 0.3 ms, walltime since start of marking 2153 ms) (average mu = 0.846, current mu = 0.7
<--- JS stacktrace --->
FATAL ERROR: Reached heap limit Allocation failed - JavaScript heap out of memory
1: 0xb7b3e0 node::Abort() [node]
2: 0xa8c8aa [node]
3: 0xd69100 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [node]
4: 0xd694a7 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [node]
5: 0xf46ba5 [node]
6: 0xf5908d v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [node]
7: 0xf5bff5 v8::internal::Heap::HandleGCRequest() [node]
8: 0xeda14f v8::internal::StackGuard::HandleInterrupts() [node]
9: 0x12da75f v8::internal::Runtime_StackGuardWithGap(int, unsigned long*, v8::internal::Isolate*) [node]
10: 0x1707b79 [node]
Aborted (core dumped)
Expected Behavior
It should not be throwing out of memory errors and core dumps.
How Do We Reproduce?
Run a webpack build with the latest postcss-loader? All the webpack builds in our private repos fail with the latest version of postcss-loader, but I can't post those configurations publicly.
Please paste the results of npx webpack info here, and mention other relevant information
npx webpack info
System:
OS: Linux 6.2 Ubuntu 22.10 22.10 (Kinetic Kudu)
CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
Memory: 7.52 GB / 15.51 GB
Binaries:
Node: 18.15.0 - ~/.nvm/versions/node/v18.15.0/bin/node
npm: 9.5.0 - ~/.nvm/versions/node/v18.15.0/bin/npm
Browsers:
Chrome: 111.0.5563.146
Firefox: 111.0.1
Packages:
raw-loader: ^4.0.2 => 4.0.2
source-map-loader: ^4.0.1 => 4.0.1
url-loader: ^4.1.1 => 4.1.1
webpack: ^5.77.0 => 5.77.0