From: "H. Peter Anvin" <hpa@zytor.com>
To: Markus Rechberger <markus.rechberger@amd.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [patch] x86-64 ext2/ext3 datestamp problem
Date: Tue, 06 Feb 2007 14:06:57 -0800 [thread overview]
Message-ID: <45C8FC01.8060506@zytor.com> (raw)
In-Reply-To: <45C8FC19.1020109@amd.com>
Markus Rechberger wrote:
> H. Peter Anvin wrote:
>> Markus Rechberger wrote:
>>> My debian system's coreutils package only allows dates between 1902 and
>>> 2038, but it might be interesting to get that right if it's wrong.
>>>
>>> touch (GNU coreutils) 5.97 just says invalid dateformat to 2050-01-01
>> Lemme guess, you're on a 32-bit system...
>>
>
> I have both here, 64 and 32bit
> If I touch a file with 1905 on my 32bit system and remount the disk the
> date will remain at 1905 without any patch.
>
The reason is that most 32-bit systems (e.g. i386) only have a 32-bit
time_t, so the user space interface wraps around in 2038.
However, most 64-bit systems (e.g. x86_64) have 64-bit time_t, and thus
don't have that problem.
-hpa
next prev parent reply other threads:[~2007-02-06 22:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-06 21:33 [patch] x86-64 ext2/ext3 datestamp problem Markus Rechberger
2007-02-06 21:40 ` Markus Rechberger
2007-02-06 21:49 ` H. Peter Anvin
2007-02-06 21:57 ` Markus Rechberger
2007-02-06 22:00 ` H. Peter Anvin
2007-02-06 22:07 ` Markus Rechberger
2007-02-06 22:06 ` H. Peter Anvin [this message]
2007-02-06 22:23 ` Markus Rechberger
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