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Add an AQM on the uplink path

Type: BugError or flaw producing unexpected resultsError or flaw producing unexpected results

Status: Open.

#3701 In shadow/shadow;

· MarcoPolo opened on Nov 20, 2025

document and maybe report deadlock in python 3.10's subprocess.Popen.communicate

Component: DocumentationIn-repository documentation, under docs/In-repository documentation, under docs/

Type: BugError or flaw producing unexpected resultsError or flaw producing unexpected results

Status: Open.

#3697 In shadow/shadow;

· sporksmith opened on Nov 13, 2025

strace logging: support for RV-dependent formatting for output-pointer-args

Type: EnhancementNew functionality or improved designNew functionality or improved design

Status: Open.

#3694 In shadow/shadow;

· sporksmith opened on Nov 4, 2025

managed processes can inadvertently open shadow's file descriptors though /dev

Type: BugError or flaw producing unexpected resultsError or flaw producing unexpected results

Status: Open.

#3687 In shadow/shadow;

· sporksmith opened on Oct 23, 2025

managed processes can open and read/write the terminal (/dev/tty)

Type: BugError or flaw producing unexpected resultsError or flaw producing unexpected results

Status: Open.

#3684 In shadow/shadow;

· sporksmith opened on Oct 20, 2025

Cannot build Shadow 3.2.0 with Rust 1.90.0

Type: BugError or flaw producing unexpected resultsError or flaw producing unexpected results

Status: Open.

#3675 In shadow/shadow;

· ppopth opened on Oct 6, 2025

shadow-exec sometimes does not allow "=" in <code>--shadow-args</code> options

Type: BugError or flaw producing unexpected resultsError or flaw producing unexpected results

Status: Open.

#3660 In shadow/shadow;

· stevenengler opened on Sep 20, 2025

Support <code>SO_REUSEADDR</code> (and lack of <code>SO_REUSEADDR</code>)

Type: EnhancementNew functionality or improved designNew functionality or improved design

Status: Open.

#3649 In shadow/shadow;

· stevenengler opened on Sep 7, 2025

·  

Validate and improve TCP simulation accuracy

closing a listener socket doesn't reset pending connections that haven't yet been accepted

Type: BugError or flaw producing unexpected resultsError or flaw producing unexpected results

Status: Open.

#3644 In shadow/shadow;

· sporksmith opened on Aug 19, 2025

·  

Validate and improve TCP simulation accuracy

Automatically configure common applications and libraries to not use RDRAND etc

Type: EnhancementNew functionality or improved designNew functionality or improved design

Status: Open.

#3629 In shadow/shadow;

· sporksmith opened on Jul 14, 2025

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Remove sources of non-determinism

Check CI workflows with zizmor

Component: ToolsPeripheral tools like parsing log files or visualizing resultsPeripheral tools like parsing log files or visualizing results

Priority: LowPrioritized below most other issuesPrioritized below most other issues

Type: MaintenanceRefactoring, cleanup, documenation, or process improvementsRefactoring, cleanup, documenation, or process improvements

Status: Open.

#3627 In shadow/shadow;

· stevenengler opened on Jul 13, 2025

Support UDP recvmmsg and IP_PKTINFO socket option (better QUIC support)

Type: EnhancementNew functionality or improved designNew functionality or improved design

Status: Open.

#3623 In shadow/shadow;

· MarcoPolo opened on Jul 2, 2025