Re: file last access time late sync
Re: file last access time late sync
- Subject: Re: file last access time late sync
- From: Alain Bench <email@hidden>
- Date: Fri, 24 Dec 2004 00:59:10 +0100 (CET)
- Mail-followup-to: Darwin kernel ml <email@hidden>
On Wednesday, December 22, 2004 at 12:46:29 PM -0800,
John Davidorff Pell wrote:
> On 15 Dec 2004, at 13:47, Alain Bench wrote:
>> Some people using Darwin 7.6.0 and HFS+ journaled filesystem have a
>> problem where a file's last access time is not updated immediately on
>> a file read.
> I've experienced a problem with TAR reporting that a file has changed
> while being read, when I know that it hasn't. Could this be related to
> this bug?
I don't know. It's possible, as tar manipulates atime.
A thread about "delayed updates to file-access time" on the
newsgroup comp.sys.mac.system gives updated infos, see:
<URL:http://groups.google.com/groups?threadm=email@hidden>
- MacOS 10.3.7 also has the problem.
- Previous atime matters: If month old, no problem. If minutes or some
days old, problem.
- Contrary to what I said, atime is updated to the wrong time of
update, not to time of file access. Atime ends at access plus delay.
- When problem, delay seems random from 20 seconds to 5 minutes.
Merry Christmas! Alain.
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