Eric Mills (he/him) | Epic | Hyperspace ermills@xxxxxxxx | (608) 271-9000
Thank you for filling out a Git bug report! Please answer the following questions to help us understand your issue. What did you do before the bug happened? (Steps to reproduce your issue) I ran `git fetch --prefetch origin main` with git 2.47 on both my Windows machine (2.47.windows.2) and my Mac (2.47.0) and it hangs. When I downgrade, same command succeeds on 2.46.2.Windows.1 / 2.46.2 (macOS). What did you expect to happen? (Expected behavior) I expect the fetch to complete without hanging as it does in 2.46.2. Note that while investigating this, I learned that `git fetch --prefetch` may not be meant to be run with specific refs. The idea was to prefetch `main`, but it seems that in 2.46.2 this prefetches all refs from that remote even when a specific ref is given. If prefetching specific refs is explicitly not allowed, I would expect a more targeted error message instead of hanging. If it is meant to work, I would expect that only that ref is prefetched. What happened instead? (Actual behavior) It hangs to the point that I have to end the process in Task Manager. What's different between what you expected and what actually happened? I don't expect the command to hang. Anything else you want to add: To quickly recap, the hang occurs on both macOS and Windows. It doesn't happen in 2.46.2, but does happen in 2.47.0. Even though I might be using the command incorrectly, I thought it was worth reporting because it seems to be a regression. I found the issue on Windows, but since I could reproduce it on macOS (or something similar on macOS), I'm filing the issue upstream. On Windows, I don't get an error. It hangs indefinitely. On macOS, after a few seconds I got the following: git(84051,0x20171cf40) malloc: *** error for object 0x600001978390: pointer being freed was not allocated git(84051,0x20171cf40) malloc: *** set a breakpoint in malloc_error_break to debug [1] 84051 abort git fetch --prefetch origin main Please review the rest of the bug report below. You can delete any lines you don't wish to share. [System Info] git version: git version 2.47.0.windows.2 cpu: x86_64 built from commit: 1f8a83cba6e88fad4b881885e64cfb89458e3653 sizeof-long: 4 sizeof-size_t: 8 shell-path: D:/git-sdk-64-build-installers/usr/bin/sh feature: fsmonitor--daemon libcurl: 8.10.1 OpenSSL: OpenSSL 3.2.3 3 Sep 2024 zlib: 1.3.1 uname: Windows 10.0 22631 compiler info: gnuc: 14.2 libc info: no libc information available $SHELL (typically, interactive shell): C:\Program Files\Git\usr\bin\bash.exe [Enabled Hooks]
