Sometimes the system freezes while shutting down. It always happens when USB hotplugging is being shut down. Once, I had a login on another virtual terminal open, and I could see that an rmmod processed removing one of the USB modules was hanging. Unfortunately, I did not write down which one, and as it only happens occationally I have not been able to reproduce it while having another virtual terminal open. Killing the rmmod process made the shutdown procedure progress until the next module should be removed, then rmmod was hanging again. Killing that one and it proceeded to the next rmmod etc. I am using the 2.6.5 kernel (development-sources). It only happened once with this kernel, it was quite common with the 2.6.4 kernel. By the way, is there any good reason to unload kernel modules during shutdown? It may sense when a service is stopped during normal operation, but during shutdown I would guess some time could be saved by skipping those steps. Reproducible: Sometimes Steps to Reproduce: 1. Shut down the machine from the command line or from X. 2. 3. Actual Results: Occationally, the shutdown process freezes when USB hotplugging is shutting down. Expected Results: A clean shut down, every time :-) sys-kernel/development-sources-2.6.5 sys-apps/hotplug-20040401 sys-apps/module-init-tools-3.0 [baula] ~>emerge info Portage 2.0.50-r6 (default-x86-1.4, gcc-3.3.2, glibc-2.3.2-r9, 2.6.5) ================================================================= System uname: 2.6.5 i686 Mobile Intel(R) Pentium(R) 4 CPU 3.06GHz Gentoo Base System version 1.4.10 Autoconf: sys-devel/autoconf-2.58-r1 Automake: sys-devel/automake-1.8.3 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CFLAGS="-O3 -march=pentium4 -pipe -fomit-frame-pointer -fprefetch-loop-arrays -falign-functions=4" CHOST="i686-pc-linux-gnu" COMPILER="gcc3" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.1/share/config /usr/kde/3.2/share/config /usr/kde/3/share/config /usr/lib/mozilla/defaults/pref /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O3 -march=pentium4 -pipe -fomit-frame-pointer -fprefetch-loop-arrays -falign-functions=4" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs ccache sandbox" GENTOO_MIRRORS="http://trumpetti.atm.tut.fi/gentoo/ ftp://trumpetti.atm.tut.fi/gentoo/ ftp://ftp.rhnet.is/pub/gentoo/ ftp://gd.tuwien.ac.at/opsys/linux/gentoo/" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="X Xaw3d aalib acpi alsa arts avi berkdb cdr crypt cups dga directfb doc dvd emacs encode esd foomaticdb gdbm gif gpm gtk gtk2 imap imlib java jpeg kde libg++ libwww mad maildir mbox mikmod motif mozilla mpeg mule ncurses nls noreiserfs oggvorbis opengl oss pam pcmcia pdflib perl png pnp ppds python qt quicktime readline sdl slang spell sse ssl svga tcltk tcpd tetex tiff truetype trusted usb wxwindows x86 xml2 xmms xv zlib"
Created attachment 32654 [details] My kernel configuration file (.config) This is the configuration of my 2.6.5 kernel.
Yes. Next version of hotplug will not unload the usb devices. It should fix this issue.
