Re: Nanoseconds times on EXT3 always seem to be zero

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On Jan 6, 2008 3:13 PM, John David Anglin <dave@xxxxxxxxxxxxxxxxxx> wrote:
> On an EXT3 file system, I see the following:
>
> dave@mx3210:~$ touch xyzzy
> dave@mx3210:~$ ls --full-time xyzzy
> -rw-r--r-- 1 dave dave 0 2008-01-06 15:07:01.000000000 -0500 xyzzy
>
> However, on tmpfs, proc, etc., I see the sub-seconds time.  This is
> 2.6.22.14 and 2.6.22.15.
>
> The behavior of 32 and 64-bit kernels seems to be the same.
>
> With an old 2.6 x86 kernel (suse), I see sub-second times on a EXT3
> file system.

Can you distill this into a testcase that uses the kernel fstat* syscalls?

That would definitely rule out glibc getting in the way.

c.
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