Re: Built Git 2.27.0 from sources on macOS Catalina fails on "make profile"

[Fabio Frumento <frumento.fabio@gmail.com>]

Hi,

Thanks for the reply.

I get several messages like this

LLVM Profile Warning: Unable to track new values: Running out of static counters.  Consider using option -mllvm -vp-counters-per-site=<n> to allocate more value profile counters at compile time.

I’ve checked the scripts in the t folder, they use #!/bin/sh while  I’m using zsh could  it be of some relevance? Which shell are they supposed to be run?

-Fabio

> Il giorno 1 lug 2020, alle ore 17:37, Jeff King <peff@peff.net> ha scritto:
> 
> On Wed, Jul 01, 2020 at 03:17:05PM +0200, Fabio Frumento wrote:
> 
>> now I'm struggling during the ```make profile``` step
>> [...]
>> I'm a little surprised as presumed, since 2.27.0 is an official
>> release, all the tests should pass without any issue.
> 
> They generally do (not just for releases but for every commit that hits
> master). However, we've sometimes seen weird test failures from "make
> profile" (which in my experience isn't all that well maintained).
> 
> That said, "make profile" passes for me on v2.27.0, on Linux.  It's
> possible that a test is racy (the profiler often slows things down,
> exacerbating races), but I can't seem to get t0410 to fail with our
> usual stress-test to find races.
> 
> If you don't care about profile-optimized builds, then I'd suggest
> skipping "make profile".
> 
> If you want to look further into the test failure, probably it would
> help to re-run the test with more verbose settings. E.g.:
> 
>  [wait for this to fail, which would leave the problematic version of
>   git in the build directory]
>  $ make profile
>  $ cd t
>  $ ./t0410-partial-clone.sh -v -i -x
> 
> then we could see what's failing.
> 
>> How to file a bug to the Git developers?
> 
> I think you just did.
> 
> -Peff