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[BUG] Regression in CDNA2 AMDGPU kernel compilation between 0.26.3.0.dev2026041605 and 0.26.3.0.dev2026041716: empty kernel crashes with target-incompatible DataLayout

bugSomething isn't workingSomething isn't working

mojoIssues that are related to mojoIssues that are related to mojo

Status: Open.

#6451 In modular/modular;

· BenWibking opened on Apr 23, 2026

[BUG] [mojo-lang] Potential upcasting inference bug in TypeList.map

bugSomething isn't workingSomething isn't working

mojoIssues that are related to mojoIssues that are related to mojo

Status: Open.

#6450 In modular/modular;

· martinvuyk opened on Apr 23, 2026

[BUG] MLIR interpreter cannot handle all trigonometric functions

bugSomething isn't workingSomething isn't working

mojoIssues that are related to mojoIssues that are related to mojo

Needs TriageIssue needs to be routed/triaged to a particular team stillIssue needs to be routed/triaged to a particular team still

Status: Open.

#6449 In modular/modular;

· samufi opened on Apr 23, 2026

[BUG]: Cannot use MAX eager mode in another thread than the main thread in python

bugSomething isn't workingSomething isn't working

max

Needs TriageIssue needs to be routed/triaged to a particular team stillIssue needs to be routed/triaged to a particular team still

Status: Open.

#6447 In modular/modular;

· gabrieldemarmiesse opened on Apr 23, 2026

[Feature Request] [stdlib] Use SI Time units throughout the stdlib

enhancementNew feature or requestNew feature or request

mojoIssues that are related to mojoIssues that are related to mojo

Needs TriageIssue needs to be routed/triaged to a particular team stillIssue needs to be routed/triaged to a particular team still

Status: Open.

#6446 In modular/modular;

· martinvuyk opened on Apr 23, 2026

KGEN JIT buffer overflow (__fortify_fail_abort) when compiling struct with List[String] field + 6 overloaded constructors + Dict + std.python import

Status: Open.

#6445 In modular/modular;

· mvillmow opened on Apr 23, 2026

[BUG]: [GPU][SM120] nn.Linear fp32 produces much larger error than PyTorch CUDA fp32

bugSomething isn't workingSomething isn't working

max

Needs TriageIssue needs to be routed/triaged to a particular team stillIssue needs to be routed/triaged to a particular team still

Status: Open.

#6443 In modular/modular;

· jonascloud opened on Apr 22, 2026

[BUG] [mojo-lang] Default parameter is not propagated down to constructor

bugSomething isn't workingSomething isn't working

mojoIssues that are related to mojoIssues that are related to mojo

Needs TriageIssue needs to be routed/triaged to a particular team stillIssue needs to be routed/triaged to a particular team still

Status: Open.

#6441 In modular/modular;

· martinvuyk opened on Apr 22, 2026

[BUG]: error: 'mo.static.reshape' op input and output elements do not match: 6 vs 2

bugSomething isn't workingSomething isn't working

max

Needs TriageIssue needs to be routed/triaged to a particular team stillIssue needs to be routed/triaged to a particular team still

Status: Open.

#6440 In modular/modular;

· gabrieldemarmiesse opened on Apr 22, 2026

[BUG] Mojo evaluates function arguments eagerly before debug_assert is even entered

bugSomething isn't workingSomething isn't working

mojoIssues that are related to mojoIssues that are related to mojo

Needs TriageIssue needs to be routed/triaged to a particular team stillIssue needs to be routed/triaged to a particular team still

Status: Open.

#6439 In modular/modular;

· forfudan opened on Apr 22, 2026

[BUG] Implicit ctor and overloaded function compiler crash

bugSomething isn't workingSomething isn't working

mojoIssues that are related to mojoIssues that are related to mojo

Status: Open.

#6438 In modular/modular;

· bgreni opened on Apr 21, 2026

[BUG]: constraint failed: DType.float64 is not supported on NVIDIA GPU for F.cos()

bugSomething isn't workingSomething isn't working

max

Needs TriageIssue needs to be routed/triaged to a particular team stillIssue needs to be routed/triaged to a particular team still

Status: Open.

#6435 In modular/modular;

· gabrieldemarmiesse opened on Apr 21, 2026