Messages in this thread |  | | | From | "pacman" <> | | Subject | Re: Anybody out there? (ETXTBSY) | | Date | Fri, 28 Aug 1998 00:44:29 -0500 (EST) |
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H. Peter Anvin writes the following: > >Followup to: <19980827023536.C9225@dot.cygnus.com> >By author: Richard Henderson <rth@cygnus.com> >In newsgroup: linux.dev.kernel >> >> ETXTBSY is explicitly not set on shared libraries. If you turn >> it on, it is impossible to upgrade libc.so. >> > >That shouldn't be; it just means it has to be unlinked before it can >be replaced (if you're doing it by hand, mv -f). It has to, anyway, >to avoid catastrophic failure of running programs.
Indeed... If you attempt to upgrade libc.so by doing a "cat newlibc.so > /lib/libc.so", then all processes using libc.so are going to die horribly. Better hope that cat is statically linked, or else it's probably going to die (ironically as a result of its own actions) before having finished. Then you have a truncated libc.so, and the real fun begins.
-- Alan Curry
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