H. Peter Anvin wrote: > 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 > > I know time_t expands to long, anyway the existing filesystem layout
cannot be changed so that problem would even remain with a 64bit system unless the whole system would really treat it as unsigned. A 64 bit system will cast the unsigned stamp over a signed long value which in this case is bigger than 32 bit and behaves differently. -- Markus Rechberger Operating System Research Center AMD Saxony LLC & Co. KG - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
