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mem-ruby: Evict/Snp*Invalid hazard

bug

Status: Open.

#3013 In gem5/gem5;

· tsyw opened on Mar 15, 2026

aarch64 TLBI ASIDE1 shouldn't flush global entries

bug

Status: Open.

#3010 In gem5/gem5;

· quackerd opened on Mar 13, 2026

redefinition of _POSIX_C_SOURCE

bug

Status: Open.

#3009 In gem5/gem5;

· dbear496 opened on Mar 13, 2026

gem5img.py bug

bug

utilUtilities for gem5. Typically found in "util"Utilities for gem5. Typically found in "util"

Status: Open.

#2989 In gem5/gem5;

· zijiancogito opened on Mar 5, 2026

Rewrite the Group constructor to accept a string_view

mem-rubyRuby caches, structures, and protocolsRuby caches, structures, and protocols

Status: Open.

#2967 In gem5/gem5;

· powerjg opened on Feb 27, 2026

arch-x86: REX prefixes in invalid positions are not ignored

arch-x86The X86 ISAThe X86 ISA

bug

Status: Open.

#2962 In gem5/gem5;

· jxors opened on Feb 25, 2026

Performance issue: Distributed Issue Queue underutilization due to listOrder blocking logic across shared OpClasses

bug

cpu-o3gem5's Out-Of-Order CPUgem5's Out-Of-Order CPU

Status: Open.

#2956 In gem5/gem5;

· Yoga57894 opened on Feb 23, 2026

Mismatched tag after moving Cache Blocks

bug

mem-cacheClassic caches and coherenceClassic caches and coherence

Status: Open.

#2955 In gem5/gem5;

· xcf-t opened on Feb 22, 2026

arch-riscv: Performance degradation due to over-serialization of vector unordered reductions

arch-riscvThe RISC-V ISAThe RISC-V ISA

cpu-o3gem5's Out-Of-Order CPUgem5's Out-Of-Order CPU

enhancement

Status: Open.

Feature

#2953 In gem5/gem5;

· erin-le opened on Feb 20, 2026

C++ lifetime violation

cpuGeneral gem5 CPU code (e.g., `BaseCPU`)General gem5 CPU code (e.g., `BaseCPU`)

Status: Open.

#2946 In gem5/gem5;

· pinskia opened on Feb 13, 2026

arch-riscv: systemd hangs for simulations with >2 cores

arch-riscvThe RISC-V ISAThe RISC-V ISA

bug

Status: Open.

#2942 In gem5/gem5;

· PSCurlin opened on Feb 11, 2026

arch-x86: STI and CLI compute IOPL incorrectly

arch-x86The X86 ISAThe X86 ISA

bug

Status: Open.

#2912 In gem5/gem5;

· nmosier opened on Jan 28, 2026