[Bug libc/9690] glibc time functionality broken with kernel 2.6.26 and later

["samuel dot thibault at ens-lyon dot org" <sourceware-bugzilla at sourceware dot org>]

------- Additional Comments From samuel dot thibault at ens-lyon dot org  2009-04-26 23:45 -------
Please do not mix two things:  - the kernel now exposes nanoseconds instead of microseconds.  That's a   kernel ABI break.  It is announced via a STA_NANO flag in   timex.status, but still, old applications are broken when started   under kernels >= 2.6.26.  That's really a concern as it's not even   easy to notice while it can irritate users (unstable ntp time). - the kernel now exposes a new tai field.  That's not a kernel ABI   break as it just takes a reserved room.  To expose it to applications   we however need to change the userland ABI.  I'd really much rather see a kernel fix for the first issue: the kernel should report nanoseconds _only_ if userland requests it.  And the case of a new application running with an old kernel _has_ to be taken care of as well.  As for the second issue, see Ulrich's comment: just define a new version. See for instance the sched_setaffinity() function that has changed its ABI (and API too actually). 

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                 CC|                            |samuel dot thibault at ens-
                   |                            |lyon dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=9690

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