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Re: 'hash foo' may fail, and would require something like 'hash /usr/bin

From: Ángel
Subject: Re: 'hash foo' may fail, and would require something like 'hash /usr/bin/foo'
Date: Fri, 11 Mar 2022 03:11:52 +0100

On 2022-03-09 at 20:35 +0100, Andreas Schwab wrote:
> On Mär 09 2022, Chet Ramey wrote:
> > Ultimately, this comes down to gaps in the release engineering.
> That won't help, the container image often comes from a different source
> than the docker package.

The system (under all those conditions) was simply broken. access(2)
didn't work. A good POSIX testsuite should have been able to catch it.

I'm not sure there is one available out there. I don't know it, but
there should be one.
Then one could ask the reporter to run such standard testsuite...
assuming one could guess that the problem might lie at that level.

Ultimately, the problem is not new, configure scripts have been working
around broken system functions for decades.

containerizaion and other "new" layers are just providing more
combinations where any of them could be faulty.

Thanks for sharing the solution, Chet. These mysterious errors bring so
much debugging "fun"...


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