When shutting down, I get the message, that unregister_netdev failed, because wlan0 is still in use, but it is stopped by net.wlan0 stop earlier. If I remove the card before (or earlier while) shutting down I don't have these problems. This issue is a bit critical because this causes the system to unmount (or remount ro) the file systems, what could lead to data loss. I have a prism 2.5 wlan card and I am using the following versions: sys-apps/pcmcia-cs-3.2.7-r2 net-wireless/hostap-driver-0.2.5 Reproducible: Always Steps to Reproduce: 1. shut down system, pcmcia wlan card inserted Actual Results: Error while stopping pcmcia When in step remounting remaining fs ro, it gives me the possibility to login again or press Ctrl-D to continue. After next start the system says that the fs is not clean Portage 2.0.51-r3 (default-linux/x86/2004.3, gcc-3.4.3, glibc-2.3.4.20041102-r0,2.6.9-gentoo-r1 i686) ================================================================= System uname: 2.6.9-gentoo-r1 i686 Mobile Intel(R) Pentium(R) 4 - M CPU 1.80GHz Gentoo Base System version 1.6.6 Autoconf: sys-devel/autoconf-2.59-r5 Automake: sys-devel/automake-1.8.5-r1 Binutils: sys-devel/binutils-2.15.92.0.2-r1 Headers: sys-kernel/linux26-headers-2.6.8.1-r1 Libtools: sys-devel/libtool-1.5.2-r7 ACCEPT_KEYWORDS="x86 ~x86" AUTOCLEAN="yes" CFLAGS="-march=pentium4 -O2 -pipe -fomit-frame-pointer -fprefetch-loop-arrays" CHOST="i686-pc-linux-gnu" COMPILER="" CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3/share/config /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="-march=pentium4 -O2 -pipe -fomit-frame-pointer -fprefetch-loop-arrays" DISTDIR="/usr/portage/distfiles" FEATURES="autoaddcvs autoconfig ccache distlocks sandbox sfperms" GENTOO_MIRRORS="http://ftp-stud.fht-esslingen.de/pub/Mirrors/gentoo/ ftp://ftp.gentoo.mesh-solutions.com/gentoo/ ftp://ftp.tu-clausthal.de/pub/linux/gentoo/" MAKEOPTS="-j2" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X X509 aalib acl acpi alsa apache2 arts artswrappersuid avi berkdb bitmap-fonts cdr chroot crypt cups dba dvd encode esd ethereal fam flac foomaticdb gd gdbm ggi gif gnutls gphoto2 gps gstreamer gtk gtk2 hostap-nopci hostap-noplx imagemagick imlib ipv6 java jce jmx jpeg junit kde kerberos latex ldap libg++ libwww madmikmod mmx mozdevelop mpeg mysql nas ncurses nls nptl nptlonly ntlm odbc oggvorbis opengl pam pcmcia pdflib perl pic plotutils png pnp postgres ppds pwdb python qt quicktime readline real samba scanner sdl slang slp snmp spell sse sse2 ssl svg svga tcltk tcpd tetex theora tiff truetype trusted unicode usagi usb wifi x86 xine xml xml2 xmms xprint xv xvid zlib linguas_de"
what card? what module? a listing of lsmod before you shutdown? Are you using hotplug or have the module in modules.autoload.d/kernel-2.6 or letting cardmgr load it? Those are my 4 questions. Anyone else think of any others?
- what card? ASUS WL-100, this one has a prism 2.5 chip Host AP driver diagnostics information for 'wlan0' NICID: id=0x800c v1.0.0 (PRISM II (2.5) PCMCIA (SST parallel flash)) PRIID: id=0x0015 v1.1.1 STAID: id=0x001f v1.8.0 (station firmware) - what module? hostap_cs - a listing of lsmod before you shutdown? Here before shutting down: Module Size Used by hostap_cs 54424 3 hostap_crypt_wep 5248 1 hostap 113032 2 hostap_cs,hostap_crypt_wep ds 14340 5 hostap_cs yenta_socket 18688 2 pcmcia_core 52620 3 hostap_cs,ds,yenta_socket ... (rest is sound, nvidia, usb) I will try to get some info about the state directly before power off and post it here - Are you using hotplug or have the module in modules.autoload.d/kernel-2.6 or letting cardmgr load it? hm, I have hotplug, but I think it is handled by cardmgr. The association between card and module is in /etc/pcmcia/hostap.conf cardmgr[6271]: socket 0: ASUS WL-100 802.11b WLAN PC Card hostap_cs: 0.2.5 - 2004-10-03 (Jouni Malinen <jkmaline@cc.hut.fi>) hostap_cs: Registered netdevice wifi0 hostap_cs: index 0x01: Vcc 3.3, irq 11, io 0x0100-0x013f wifi0: registered netdevice wlan0 net.agent[8446]: add event not handled
lsmod at maintenance login directly before halt: Module Size Used by hostap_cs 54424 1 hostap_crypt_wep 5248 0 hostap 113032 2 hostap_cs,hostap_crypt_wep ds 14340 5 hostap_cs yenta_socket 18688 2 pcmcia_core 52620 3 hostap_cs,ds,yenta_socket nvidia 3463164 0 usb_storage 27136 0 ohci_hcd 18948 0 usbcore 101604 4 usb_storage,ohci_hcd tail of dmesg: wifi0: TXEXC - status=0x0004 ([Discon]) tx_control=000c retry_count=0 tx_rate=0 fc=0x4108 (Data::0 ToDS) A1=00:0c:41:a5:91:c6 A2=00:e0:18:ed:d0:46 A3=33:33:00:00:00:16 A4=00:00:00:00:00:00 unregister_netdevice: waiting for wlan0 to become free. Usage count = 1 ... (several times) ... unregister_netdevice: waiting for wlan0 to become free. Usage count = 1 Then I unplug my card manually before shutdown, dmesg shows this: wifi0: Interrupt, but SWSUPPORT0 does not match: FFFF != 8A32 - card removed? wifi0: prism2_interrupt: ev=0xffff hostap_cs: CS_EVENT_CARD_REMOVAL wifi0: card already removed or not configured during shutdown wifi0: card already removed or not configured during shutdown hostap_cs: Driver unloaded and lsmod doesn't show hostap_cs anymore
Reporter, please check if net-wireless/hostap-driver-0.3.7 fixes this issue.
Hm - I have a new PCI pccard now which uses hotplug. I have emerged the latest hostap-driver and tried my old card and had no problems.
Thank you for verifying.
