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v8-dev

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Apr 14

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

Claude found the problem. Attached the patch that fixed the occasional crash. Two related fixes for

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

Claude found the problem. Attached the patch that fixed the occasional crash. Two related fixes for

Apr 14

ClearScript Developers, … Camillo Bruni5

Apr 11

Failures in "gclient sync" due to HTTP 429 (Too Many Requests)?

This appears to have been resolved. Thank you all! On Tuesday, April 7, 2026 at 10:57:39 AM UTC-4 cbr

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Failures in "gclient sync" due to HTTP 429 (Too Many Requests)?

This appears to have been resolved. Thank you all! On Tuesday, April 7, 2026 at 10:57:39 AM UTC-4 cbr

Apr 11

Ho Cheung, … James Dennett7

Apr 10

Does V8 now allow C++20?

On Fri, Apr 10, 2026 at 2:18 AM Jakob Kummerow <jkum...@chromium.org> wrote: I don't

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Does V8 now allow C++20?

On Fri, Apr 10, 2026 at 2:18 AM Jakob Kummerow <jkum...@chromium.org> wrote: I don't

Apr 10

Abdullah Sarkar, Jakob Kummerow4

Apr 10

Is external contribution possible to a minor Security Report?

The following ran expectedly: https://issues.chromium.org/issues/42201901 https://issues.chromium.org

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Is external contribution possible to a minor Security Report?

The following ran expectedly: https://issues.chromium.org/issues/42201901 https://issues.chromium.org

Apr 10

Apr 8

Naming conflicts when building v8_monolith

I am building a static monolith of v8 14.6 with the following config: gn_args = { is_debug: false,

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Naming conflicts when building v8_monolith

I am building a static monolith of v8 14.6 with the following config: gn_args = { is_debug: false,

Apr 8

Apr 8

Cannot build static libv8 with partition_alloc enabled

I started from the working homebrew recipe for v8 14.6, but after adding : v8_monolithic: true,

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Cannot build static libv8 with partition_alloc enabled

I started from the working homebrew recipe for v8 14.6, but after adding : v8_monolithic: true,

Apr 8

Michael Achenbach2

Apr 2

Branch cut V8 14.8 on 2026-04-02

Hi, We've officially branched to be prepared for the upcoming Chromium version 148. The base of

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Branch cut V8 14.8 on 2026-04-02

Hi, We've officially branched to be prepared for the upcoming Chromium version 148. The base of

Apr 2

Tao Chen, Jakob Kummerow4

Mar 28

[Proposal] Let GC learn business context via SPI: a hybrid Arena + GC memory model for V8

One more thought I want to add, not to argue, but because I think it's worth considering together

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[Proposal] Let GC learn business context via SPI: a hybrid Arena + GC memory model for V8

One more thought I want to add, not to argue, but because I think it's worth considering together

Mar 28

Jakob Kummerow3

Mar 9

Branch cut V8 14.7 on 2026-03-09

Correction: the version is 14.7.173. Sorry for the confusion. On Mon, Mar 9, 2026 at 3:26 PM Jakob

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Branch cut V8 14.7 on 2026-03-09

Correction: the version is 14.7.173. Sorry for the confusion. On Mon, Mar 9, 2026 at 3:26 PM Jakob

Mar 9

Erik Corry, … Toon Verwaest4

Mar 6

Build times for V8

Hi Erik I already lgtm'd the cl but for the record: While jumbo support was dropped, we're

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Build times for V8

Hi Erik I already lgtm'd the cl but for the record: While jumbo support was dropped, we're

Mar 6

Feb 9

Branch cut V8 14.6 on 2026-02-09

Hi, We've officially branched to be prepared for the upcoming Chromium version 146. The base of

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Branch cut V8 14.6 on 2026-02-09

Hi, We've officially branched to be prepared for the upcoming Chromium version 146. The base of

Feb 9

Emily Boarer, … Clemens Backes4

Feb 4

Fuzztesting correctness turboshaft vs liftoff

+1 to a fuzztest then. Having dozens of them is not a problem. If you want to compare Liftoff vs

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Fuzztesting correctness turboshaft vs liftoff

+1 to a fuzztest then. Having dozens of them is not a problem. If you want to compare Liftoff vs

Feb 4

Amemiya Riya, Leszek Swirski2

Jan 28

[Design/Perf] C++ fast path for Array.prototype.flat (2-pass, V8)

Hi Amemiya, This sounds like a reasonable approach, fast-paths for a valid NoElements protector is a

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[Design/Perf] C++ fast path for Array.prototype.flat (2-pass, V8)

Hi Amemiya, This sounds like a reasonable approach, fast-paths for a valid NoElements protector is a

Jan 28

Michael Achenbach2

Jan 12

Branch cut V8 14.5 on 2026-01-12

Hi, We've officially branched to be prepared for the upcoming Chromium version 145. The base of

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Branch cut V8 14.5 on 2026-01-12

Hi, We've officially branched to be prepared for the upcoming Chromium version 145. The base of

Jan 12

Pradish, Ben Noordhuis3

Jan 8

Crash due to cross-DLL deallocation of std::string from static V8 library (CRT/heap ownership mismatch)

Thanks Ben for looking into this. In my earlier email, I mistakenly mentioned is_clang = false ; that

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Crash due to cross-DLL deallocation of std::string from static V8 library (CRT/heap ownership mismatch)

Thanks Ben for looking into this. In my earlier email, I mistakenly mentioned is_clang = false ; that

Jan 8

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

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