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Re: Build failures of coreutils-8.1 in Fedora build system "koji"

From: Eric Blake
Subject: Re: Build failures of coreutils-8.1 in Fedora build system "koji"
Date: Tue, 24 Nov 2009 06:29:06 -0700
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According to Eric Blake on 11/24/2009 6:04 AM:
> It looks like those are cases of an old kernel that can't set timestamps
> on symlinks.  Does the kernel support lutimes?

Also, does utimensat(AT_FDCWD,"file",NULL,0) work, and it is just the
AT_SYMLINK_NOFOLLOW variant that fails with ENOSYS?  If so, I see at least
one problem in lib/utimens.c - it shares a static variable between
lutimens and fdutimens, which means that if lutimens detects
AT_SYMLINK_NOFOLLOW failure, then fdutimens fails to even try utimensat in
the future.

> Those two failing tests (touch/no-dereference and touch/trailing-slash) seems 
> to be new in coreutils test-suite (added in 8.1), so the issue was likely 
> there even before 8.1 and now shows in koji...

Both failures depend on 'touch -h', which is new to coreutils 8.1; there
is no regression, because prior to coreutils 8.1, you couldn't request the
use of AT_SYMLINK_NOFOLLOW in the first place.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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