Distribution: Debian etch Hardware Environment: Lifebook E8110 http://www.fujitsu-siemens.com/products/mobile/notebooks/lifebook_e.html http://vilpublic.fujitsu-siemens.com/vil/pc/vil/datenblaetter/mobile/en/ds_lifebook_e8110_e8210.pdf http://www.o2micro.com/products/prod_4in1.html lspci: 00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS/940GML and 945GT Express Memory Controller Hub (rev 03) 00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller (rev 03) 00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller (rev 03) 00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02) 00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02) 00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02) 00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02) 00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev 02) 00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev 02) 00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev 02) 00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev 02) 00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2) 00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02) 00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02) 00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) Serial ATA Storage Controller IDE (rev 02) 00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02) 02:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8055 PCI-E Gigabit Ethernet Controller (rev 12) 05:00.0 Ethernet controller: Atheros Communications, Inc. Unknown device 001c (rev 01) 08:03.0 CardBus bridge: O2 Micro, Inc. OZ711MP1/MS1 MemoryCardBus Controller (rev 21) 08:03.1 CardBus bridge: O2 Micro, Inc. OZ711MP1/MS1 MemoryCardBus Controller (rev 21) 08:03.2 Generic system peripheral [0805]: O2 Micro, Inc. Integrated MMC/SD Controller (rev 01) 08:03.3 Bridge: O2 Micro, Inc. Integrated MS/xD Controller (rev 01) 08:03.4 FireWire (IEEE 1394): O2 Micro, Inc. Firewire (IEEE 1394) (rev 02) Software Environment: scripts/ver_linux: Linux pgnotas 2.6.18.2-n05 #1 SMP Fri Nov 10 03:26:42 CET 2006 i686 GNU/Linux Gnu C 4.1.2 Gnu make 3.81 binutils 2.17 util-linux 2.12r mount 2.12r module-init-tools 3.2.2 e2fsprogs 1.40-WIP reiserfsprogs 3.6.19 PPP 2.4.4 Linux C Library 2.3.6 Dynamic linker (ldd) 2.3.6 Procps 3.2.7 Net-tools 1.60 Console-tools 0.2.3 Sh-utils 5.97 udev 100 Modules Loaded thermal button processor ac battery mousedev firmware_class psmouse yenta_socket rsrc_nonstatic pcmcia_core Problem Description: BUG: unable to handle kernel paging request at virtual address f00471a8 printing eip: b0190d64 *pde = 018d1067 *pte = 00000000 Oops: 0000 [#1] SMP Modules linked in: thermal button processor ac battery mousedev firmware_class psmouse yenta_socket rsrc_nonstatic pcmcia_core CPU: 0 EIP: 0060:[<b0190d64>] Not tainted VLI EFLAGS: 00010246 (2.6.18.2-n05 #1) EIP is at sysfs_get_name+0x44/0x60 eax: f00471a8 ebx: ee8fff5c ecx: ee2dd538 edx: 00000004 esi: ee8fff58 edi: 00000996 ebp: ed7d3f6c esp: ed7d3f30 ds: 007b es: 007b ss: 0068 Process find (pid: 1596, ti=ed7d2000 task=b194aa70 task.ti=ed7d2000) Stack: b019280a 00000003 00000000 00000996 0000000a ee8ff388 b016bfc0 ed7d3f98 ee23c5c0 ee2dd538 eedfe260 00000009 b02c1300 ee23c5c0 eef4c840 ed7d3f8c b016c1c0 ed7d3f98 b016bfc0 eef4c8b4 00001000 0805f7fc ee23c5c0 ed7d3fb4 Call Trace: [<b016c1c0>] vfs_readdir+0x70/0x90 [<b016c24d>] sys_getdents64+0x6d/0xd0 [<b0102e69>] sysenter_past_esp+0x56/0x79 [<a7f19410>] 0xa7f19410 Code: fa 08 90 8d 74 26 00 74 1e 83 fa 20 74 19 5d 31 c0 c3 90 8d 74 26 00 83 fa 02 75 f2 8b 40 20 5d 8b 40 24 c3 8d 76 00 8b 40 14 5d <8b> 00 c3 0f 0b be 00 8a f3 2d b0 eb bd eb 0d 90 90 90 90 90 90 EIP: [<b0190d64>] sysfs_get_name+0x44/0x60 SS:ESP 0068:ed7d3f30 Steps to reproduce: I found two alternatives how to generate oops a) if pcmcia module not loaded modprobe pcmcia rmmod pcmcia find /sys b) if pcmcia module not loaded modprobe pcmcia rmmod pcmcia reboot or poweroff (oops from this alternative is not saved) Notes: - oops is reproducible with vanilla kernel 2.6.18.2, 2.6.17-2-686 from debian distro, and 2.6.17-gentoo-r8 - reproducible also on older lifebook with 1 CPU - the latest normal output of find is: /sys/devices/pci0000:00/0000:00:1e.0/0000:08:03.2/uevent /sys/devices/pci0000:00/0000:00:1e.0/0000:08:03.1 /sys/devices/pci0000:00/0000:00:1e.0/0000:08:03.1/1.0 - after oops, the system remains usable except of freezing poweroff - I have no pcmcia/pccard cards, so I can't say anything about pcmcia functionality After modprobe -r pcmcia ; modprobe pcmcia the following kernel messages appear: pcmcia: registering new device pcmcia1.0 kobject_add failed for 1.0 with -EEXIST, don't try to register things with the same name in the same directory. [<b0104025>] show_trace_log_lvl+0x185/0x1a0 [<b0104722>] show_trace+0x12/0x20 [<b0104899>] dump_stack+0x19/0x20 [<b01fdd70>] kobject_add+0x120/0x1b0 [<b0242991>] device_add+0xa1/0x300 [<b0242c02>] device_register+0x12/0x20 [<f01bef9d>] pcmcia_device_add+0x1bd/0x270 [pcmcia] [<f01bf11b>] pcmcia_card_add+0xab/0xc0 [pcmcia] [<f01bf733>] ds_event+0x73/0xb0 [pcmcia] [<f002f41d>] send_event+0x7d/0xf0 [pcmcia_core] [<f002f5f8>] pccard_register_pcmcia+0x78/0x80 [pcmcia_core] [<f01bf680>] pcmcia_bus_add_socket+0x80/0xc0 [pcmcia] [<b02459a5>] class_interface_register+0x85/0xb0 [<f003e029>] init_pcmcia_bus+0x29/0x2d [pcmcia] [<b0136787>] sys_init_module+0x137/0x1a30 [<b0102e69>] sysenter_past_esp+0x56/0x79 [<a7fd9410>] 0xa7fd9410 .config, lspci -vvv, dmesg and some files from /proc are at http://student.fiit.stuba.sk/~gono00/bug_pcmcia_2.6.18.2.tar.bz2
Created attachment 9539 [details] pcmcia-ds-rmmod-unregister.patch patch that fixes the problem
Added pcmcia-fix-rmmod-pcmcia-with-unbound-devices.patch to -mm.