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v8-dev

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Mert Can Altın, dmerc...@google.com2

Jan 2

Tree Closed – Unable to Add Test Commit

Hi, The tree being closed just prevents from landing CLs, not from starting CQ Dry Runs. However, you

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Tree Closed – Unable to Add Test Commit

Hi, The tree being closed just prevents from landing CLs, not from starting CQ Dry Runs. However, you

Jan 2

ClearScript Developers, … Angelo Dell'Aera6

12/16/25

[14.1] compilation errors on Linux

Can you please share the details of how you were able to fix the source_location issue? Asking

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[14.1] compilation errors on Linux

Can you please share the details of how you were able to fix the source_location issue? Asking

12/16/25

Yahan Lu (LuYahan)

12/12/25

Why subtract a frame from visited_frames in isolate.cc

Hi V8 team, I'm currently studying V8's support for Intel CET (Control-flow Enforcement

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Why subtract a frame from visited_frames in isolate.cc

Hi V8 team, I'm currently studying V8's support for Intel CET (Control-flow Enforcement

12/12/25

Alexander Timokhin, … gd jd4

12/11/25

Frequent V8 GC crashes on Redmi Note

Hello, I also encountered this error on my vivo x21 device. May I ask if there is a solution or

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Frequent V8 GC crashes on Redmi Note

Hello, I also encountered this error on my vivo x21 device. May I ask if there is a solution or

12/11/25

12/2/25

Ngram SIMD strategy for regexps

I have a design document and the beginnings of an implementation. https://docs.google.com/document/d/

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Ngram SIMD strategy for regexps

I have a design document and the beginnings of an implementation. https://docs.google.com/document/d/

12/2/25

Jakob Kummerow2

12/1/25

Branch cut V8 14.4 on 2025-12-01

Hi, We have officially branched to be prepared for the upcoming Chrome version 144. The base of the

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Branch cut V8 14.4 on 2025-12-01

Hi, We have officially branched to be prepared for the upcoming Chrome version 144. The base of the

12/1/25

AKM Iqtidar Newaz

11/24/25

Inquiry Regarding V8' Object Literal Construction during Parsing Process

Dear All, Good morning. Hope you are doing well. I am Iqtidar Newaz, an aspiring researcher who is

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Inquiry Regarding V8' Object Literal Construction during Parsing Process

Dear All, Good morning. Hope you are doing well. I am Iqtidar Newaz, an aspiring researcher who is

11/24/25

Florian Loitsch, … Jakob Kummerow4

11/14/25

[RFC] Proposal to remove RISC-V 32-bit support

On Thu, Sep 11, 2025 at 10:36 AM Jakob Kummerow <jkum...@chromium.org> wrote: +v8-users FYI.

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[RFC] Proposal to remove RISC-V 32-bit support

On Thu, Sep 11, 2025 at 10:36 AM Jakob Kummerow <jkum...@chromium.org> wrote: +v8-users FYI.

11/14/25

11/12/25

A design doc on removing cons strings from V8

For your delectation https://docs.google.com/document/d/1mgeH9Kii0K09so4EReZUn6ua9efqRNA2ZaUfBQ-0z7c

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A design doc on removing cons strings from V8

For your delectation https://docs.google.com/document/d/1mgeH9Kii0K09so4EReZUn6ua9efqRNA2ZaUfBQ-0z7c

11/12/25

11/11/25

[Android][v8] V8 14.3.92 compilation fails with missing libc++ forward headers (__fwd/byte.h)

I'm using GitHub Actions to compile Android V8 static libraries (arm/arm64/x64) on Ubuntu, but

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[Android][v8] V8 14.3.92 compilation fails with missing libc++ forward headers (__fwd/byte.h)

I'm using GitHub Actions to compile Android V8 static libraries (arm/arm64/x64) on Ubuntu, but

11/11/25

Yahan Lu (LuYahan)

11/3/25

About ReAuth failed on macOS

I'm using a Mac client, I want to SSH into Linux But when is ssh to Linux by `luci-auth-ssh-

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About ReAuth failed on macOS

I'm using a Mac client, I want to SSH into Linux But when is ssh to Linux by `luci-auth-ssh-

11/3/25

Yash Jha, … Paul Clarke4

10/28/25

Automation of RISC-V generation from spec

Thanks for the responses! I'm one of the maintainers of the UDB project, and serving as a mentor

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Automation of RISC-V generation from spec

Thanks for the responses! I'm one of the maintainers of the UDB project, and serving as a mentor

10/28/25

10/27/25

Branch cut V8 14.3 on 2025-10-27

Hi, We've officially branched to be prepared for the upcoming Chromium version 143. The base of

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Branch cut V8 14.3 on 2025-10-27

Hi, We've officially branched to be prepared for the upcoming Chromium version 143. The base of

10/27/25

Jens-Tiago Mendes Serra Bender, Leszek Swirski2

10/24/25

V8 upgrade prototype suggestion

On Fri, Oct 24, 2025 at 5:22 PM Jens-Tiago Mendes Serra Bender <jens-tiago.mendes-serra-bender@

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V8 upgrade prototype suggestion

On Fri, Oct 24, 2025 at 5:22 PM Jens-Tiago Mendes Serra Bender <jens-tiago.mendes-serra-bender@

10/24/25

James Jenkins, Andreas Haas3

10/15/25

Bazel Rules ppc64le architecture

mfar...@ibm.com told me that this question was already replied to in this thread: https://groups.

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Bazel Rules ppc64le architecture

mfar...@ibm.com told me that this question was already replied to in this thread: https://groups.

10/15/25

Matthias Liedtke

10/13/25

Explicit SmallVector initialization

Hi folks, I have written a short design-doc about making the initialization behavior of base::

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Explicit SmallVector initialization

Hi folks, I have written a short design-doc about making the initialization behavior of base::

10/13/25

Zeeshan Abid, … Ben Noordhuis8

10/10/25

Optimise string comparisons ignoring case sensativity

On Thu, Oct 9, 2025 at 10:59 PM Zeeshan Abid <zeeshan....@gmail.com> wrote: > > I

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Optimise string comparisons ignoring case sensativity

On Thu, Oct 9, 2025 at 10:59 PM Zeeshan Abid <zeeshan....@gmail.com> wrote: > > I

10/10/25

10/9/25

Speedup for Uint8Array.from(jsArrayWithUint8Elements)

The copy is required by spec: https://tc39.es/ecma262/multipage/indexed-collections.html#sec-

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Speedup for Uint8Array.from(jsArrayWithUint8Elements)

The copy is required by spec: https://tc39.es/ecma262/multipage/indexed-collections.html#sec-

10/9/25

Caio Lima, … Jakob Kummerow5

9/30/25

Extending HeapStatistics API to have total allocated bytes

On Tue, Sep 30, 2025 at 1:52 PM Caio Lima <caio...@igalia.com> wrote: Hi all, I've started

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Extending HeapStatistics API to have total allocated bytes

On Tue, Sep 30, 2025 at 1:52 PM Caio Lima <caio...@igalia.com> wrote: Hi all, I've started

9/30/25

Jakob Kummerow2

9/29/25

Branch cut V8 14.2 on 2025-09-29

Hi, we have officially branched to be prepared for the upcoming Chrome version 142. The base of the

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Branch cut V8 14.2 on 2025-09-29

Hi, we have officially branched to be prepared for the upcoming Chrome version 142. The base of the

9/29/25

9/27/25

Windows crash: [mutex.cc : 2600] RAW: Check waitp->thread->waitp == nullptr failed: waiting when shouldn't be

I maintain bindings for V8 for the R programming language. We run into a difficult problem:

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Windows crash: [mutex.cc : 2600] RAW: Check waitp->thread->waitp == nullptr failed: waiting when shouldn't be

I maintain bindings for V8 for the R programming language. We run into a difficult problem:

9/27/25

Erik Corry, Andreas Haas2

9/26/25

SetAlignedPointerInInternalField tagging

Hi, That's work in progress, the tag should be required for both, eventually. Cheers, Andreas On

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SetAlignedPointerInInternalField tagging

Hi, That's work in progress, the tag should be required for both, eventually. Cheers, Andreas On

9/26/25

9/24/25

[v8-dev] Design doc: Wasm memory64 Bounds checks elimination

Hello, I have written a small doc to present the idea of using value range analysis to eliminate the

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[v8-dev] Design doc: Wasm memory64 Bounds checks elimination

Hello, I have written a small doc to present the idea of using value range analysis to eliminate the

9/24/25

Rutvik Kachhiya

9/23/25

Guidance on Contributing to V8

Dear V8 Team, I hope this message finds you well. My name is Rutvik Kachhiya, and I am currently a B.

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Guidance on Contributing to V8

Dear V8 Team, I hope this message finds you well. My name is Rutvik Kachhiya, and I am currently a B.

9/23/25

Matthew Nicholson

9/19/25

Async Aware Stack Traces via v8 C++ API

Hi, I'm trying to use Sentry's event loop block detection[0] and encountering an issue with

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Async Aware Stack Traces via v8 C++ API

Hi, I'm trying to use Sentry's event loop block detection[0] and encountering an issue with

9/19/25

Florian Loitsch, … Anton Bikineev3

9/19/25

Update highway library

Hi Florian, Updating Highway in V8 sounds good to me. We usually prefer keeping the Chromium and V8

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Update highway library

Hi Florian, Updating Highway in V8 sounds good to me. We usually prefer keeping the Chromium and V8

9/19/25

Eric Rannaud, Leszek Swirski10

9/15/25

JSPromise::Resolve and builtin ResolvePromise can pick different contexts to enqueue onto

On Fri, Sep 12, 2025 at 6:55 PM Eric Rannaud <eric.r...@gmail.com> wrote: I'm not sure

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JSPromise::Resolve and builtin ResolvePromise can pick different contexts to enqueue onto

On Fri, Sep 12, 2025 at 6:55 PM Eric Rannaud <eric.r...@gmail.com> wrote: I'm not sure

9/15/25

9/9/25

d8.exe built for ARM64EC crashes immediately when compiling a sample JS file

New observation: When running with the --jitless flag, d8.exe is able to execute a sample JavaScript

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d8.exe built for ARM64EC crashes immediately when compiling a sample JS file

New observation: When running with the --jitless flag, d8.exe is able to execute a sample JavaScript

9/9/25

Elias, Clemens Backes2

9/8/25

Editable locals/stack within a WebAssembly debug frame

One issue is indeed constant values, another issue is registers shared by multiple values on the

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Editable locals/stack within a WebAssembly debug frame

One issue is indeed constant values, another issue is registers shared by multiple values on the

9/8/25

Florian Loitsch, dmerc...@google.com3

9/5/25

CPU-feature dependent code in builtins

I will try that. Thanks for the fast response. On Fri, Sep 5, 2025 at 10:11 AM 'dmerc...@google.

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CPU-feature dependent code in builtins

I will try that. Thanks for the fast response. On Fri, Sep 5, 2025 at 10:11 AM 'dmerc...@google.

9/5/25

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