On Wed, Apr 12, 2006 at 11:17:44PM +0200, [EMAIL PROTECTED] wrote:
> On Tue, Apr 11, 2006 at 06:45:04AM -0400, Thomas Schwinge wrote:
>
> > [EMAIL PROTECTED]:~/tmp/ext2fs/filesystem.0.i$ while fakeroot-tcp sh -c
> > `pwd`/ping > /dev/null; do date; done
> [...]
> > I stopped this experiment after a few minutes, because of ...
> >
> > #v+
> > [EMAIL PROTECTED]:~$ ps -Af | grep faked-tcp | wc -l
> > 247
> > #v-
>
> fakeroot is supposed to kill the faked process after the command
> finishes. Seems it doesn't happen in your case -- either a bug in the
> new fakeroot-tcp
Not a bug in fakeroot, but a feature in it and a bug in the Hurd or
glibc, I suppose. It might be the select() bug that was already reported
a few times in the past.
#v+
fakeroot (1.4) unstable; urgency=low
[...]
* Daemon support (TCP version): faked goes into "detached" mode when it
receives SIGHUP: it will terminate as soon as all clients close their
connections. The fakeroot script kills faked with SIGHUP instead of
SIGTERM when it exits. This is done in order to provide a working
(although isolated) fakeroot environment for daemon processes that are
launched from a fakeroot session.
#v-
Here's a gdb backtrace of such a supposed-to-have-already-terminated
faked-tcp:
#v+
(gdb) bt
#0 0x0105326c in evc_wait () from /lib/libc.so.0.3
#1 0x01053b9e in mach_msg () from /lib/libc.so.0.3
#2 0x0105972d in _hurd_exec () from /lib/libc.so.0.3
#3 0x0113c465 in select () from /lib/libc.so.0.3
#4 0x08049bea in get_msg (listen_sd=3) at ../faked.c:793
#5 0x0804a373 in main (argc=1, argv=0x13ffccc) at ../faked.c:1178
(gdb) frame 5
#5 0x0804a373 in main (argc=1, argv=0x13ffccc) at ../faked.c:1178
1178 get_msg(sd); /* we shouldn't return from this function */
(gdb) list
1173 }
1174
1175 #ifndef FAKEROOT_FAKENET
1176 get_msg(); /* we shouldn't return from this function */
1177 #else /* FAKEROOT_FAKENET */
1178 get_msg(sd); /* we shouldn't return from this function */
1179 #endif /* FAKEROOT_FAKENET */
1180
1181 cleanup(-1); /* if we do return, try to clean up and exit with a
nonzero
1182 return status */
(gdb) frame 4
#4 0x08049bea in get_msg (listen_sd=3) at ../faked.c:793
793 count = select(maxfd + 1, &readfds, NULL, NULL, NULL);
(gdb) list
788
789 FD_SET(sd, &readfds);
790 maxfd = MAX(sd, maxfd);
791 }
792
793 count = select(maxfd + 1, &readfds, NULL, NULL, NULL);
794 if (count < 0) {
795 if (errno == EINTR)
796 continue;
797
#v-
If someone feels like having a look at that...
Regards,
Thomas
P.S. If you don't need the `fakerooting daemons' functionality, you can
work around this bug by s/HUP/TERM in /usr/bin/fakeroot, but that's--of
course--not a proper fix.
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