One line summary of the problem: Crash on sysfs_follow_link
Full description of the problem/report: When the hald deamon is started, it crashes on the sysfs_follow_link function. Here's the log (from /var/log/kern.log) : Jan 28 22:51:58 localhost kernel: BUG: unable to handle kernel NULL pointer dereference at virtual address 00000148 Jan 28 22:51:58 localhost kernel: printing eip: Jan 28 22:51:58 localhost kernel: c0195866 Jan 28 22:51:58 localhost kernel: *pde = 00000000 Jan 28 22:51:58 localhost kernel: Oops: 0000 [#1] Jan 28 22:51:58 localhost kernel: SMP Jan 28 22:51:58 localhost kernel: Modules linked in: ppdev lp ipv6 ntfs nls_iso8859_1 nls_cp437 vfat fat dm_snapshot dm_mirror dm_mod apm ide_generic tsdev mousedev snd_ens1370 gameport floppy snd_rawmidi snd_seq_device snd_pcm_oss snd_mixer_oss rtc 8250_pnp pcilynx psmouse serio_raw i2c_viapro snd_pcm snd_timer snd_ak4531_codec pcspkr snd soundcore snd_page_alloc via686a shpchp pci_hotplug ieee1394 i2c_algo_bit i2c_isa i2c_core parport_pc parport via_agp agpgart evdev reiserfs ide_cd cdrom ide_disk generic 3c59x mii via82cxxx ide_core uhci_hcd usbcore processor Jan 28 22:51:58 localhost kernel: CPU: 0 Jan 28 22:51:58 localhost kernel: EIP: 0060:[<c0195866>] Not tainted VLI Jan 28 22:51:58 localhost kernel: EFLAGS: 00010206 (2.6.19.2 #1) Jan 28 22:51:58 localhost kernel: EIP is at sysfs_follow_link+0xc0/0x1a9 Jan 28 22:51:58 localhost kernel: eax: 00000124 ebx: 00000001 ecx: 0000000c edx: c02e38c0 Jan 28 22:51:58 localhost kernel: esi: cf22dcac edi: c79a9324 ebp: cf5c4cbc esp: ccdbfeb8 Jan 28 22:51:58 localhost kernel: ds: 007b es: 007b ss: 0068 Jan 28 22:51:58 localhost kernel: Process hald (pid: 4350, ti=ccdbe000 task=cff57a70 task.ti=ccdbe000) Jan 28 22:51:58 localhost kernel: Stack: ccdbfee0 c76be000 cf5c4da8 00000001 c02e6fe0 00000100 c79a9324 080a04a0 Jan 28 22:51:58 localhost kernel: c01643bd c0168947 ccdbff98 c016874c fffffff7 0809effc 00000000 cf2ac340 Jan 28 22:51:58 localhost kernel: c01689f2 00000000 ffffff9c cb184618 3766c227 45bd1afd c0123948 00000001 Jan 28 22:51:58 localhost kernel: Call Trace: Jan 28 22:51:58 localhost kernel: [<c01643bd>] generic_readlink+0x27/0x6e Jan 28 22:51:58 localhost kernel: [<c0168947>] vfs_readdir+0x7d/0x8d Jan 28 22:51:58 localhost kernel: [<c016874c>] filldir64+0x0/0xc5 Jan 28 22:51:58 localhost kernel: [<c01689f2>] sys_getdents64+0x9b/0xa5 Jan 28 22:51:58 localhost kernel: [<c0123948>] current_fs_time+0x4f/0x5b Jan 28 22:51:58 localhost kernel: [<c016f431>] touch_atime+0x60/0x8f Jan 28 22:51:58 localhost kernel: [<c0160ffd>] sys_readlinkat+0x83/0x9e Jan 28 22:51:58 localhost kernel: [<c0168947>] vfs_readdir+0x7d/0x8d Jan 28 22:51:58 localhost kernel: [<c016874c>] filldir64+0x0/0xc5 Jan 28 22:51:58 localhost kernel: [<c01689f2>] sys_getdents64+0x9b/0xa5 Jan 28 22:51:58 localhost kernel: [<c016103f>] sys_readlink+0x27/0x2b Jan 28 22:51:58 localhost kernel: [<c0102d5f>] syscall_call+0x7/0xb Jan 28 22:51:58 localhost kernel: ======================= Jan 28 22:51:58 localhost kernel: Code: 89 c5 c6 05 80 6b 32 c0 01 85 ed 75 0e 8b 44 24 08 e8 48 b6 02 00 e9 c0 00 00 00 b8 40 6f 2e c0 31 db e8 42 d6 f9 ff 8b 44 24 08 <8b> 40 24 43 85 c0 75 f8 89 ea be 01 00 00 00 8b 3a 31 c0 83 c9 Jan 28 22:51:58 localhost kernel: EIP: [<c0195866>] sysfs_follow_link+0xc0/0x1a9 SS:ESP 0068:ccdbfeb8 I already sent a report here : http://bugs.debian.org/406478 Julien Richard-Foy Keywords (i.e., modules, networking, kernel): sysfs Kernel version (from /proc/version): Linux version 2.6.19.2 ([EMAIL PROTECTED]) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 SMP Sun Jan 28 18:49:29 CET 2007 Software : If some fields are empty or look unusual you may have an old version. Compare to the current minimal requirements in Documentation/Changes. Linux sasume 2.6.19.2 #1 SMP Sun Jan 28 18:49:29 CET 2007 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 3.3-pre2 e2fsprogs 1.40-WIP reiserfsprogs 3.6.19 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 103 Modules Loaded n_hdlc ppdev lp ipv6 ntfs nls_iso8859_1 nls_cp437 vfat fat dm_snapshot dm_mirror dm_mod apm ide_generic tsdev mousedev snd_ens1370 gameport floppy snd_rawmidi snd_seq_device snd_pcm_oss snd_mixer_oss rtc 8250_pnp pcilynx psmouse serio_raw i2c_viapro snd_pcm snd_timer snd_ak4531_codec pcspkr snd soundcore snd_page_alloc via686a shpchp pci_hotplug ieee1394 i2c_algo_bit i2c_isa i2c_core parport_pc parport via_agp agpgart evdev reiserfs ide_cd cdrom ide_disk generic 3c59x mii via82cxxx ide_core uhci_hcd usbcore processor Processor information (from /proc/cpuinfo): processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 6 model name : AMD Athlon(tm) XP 1800+ stepping : 2 cpu MHz : 1461.000 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow up ts bogomips : 2924.64 Module information (from /proc/modules): n_hdlc 9476 0 - Live 0xd0f3b000 ppdev 9092 0 - Live 0xd0f02000 lp 11364 0 - Live 0xd0efe000 ipv6 227872 19 - Live 0xd0f7f000 ntfs 203220 1 - Live 0xd0f08000 nls_iso8859_1 4544 3 - Live 0xd0dfa000 nls_cp437 6208 2 - Live 0xd0d94000 vfat 12608 2 - Live 0xd0eaf000 fat 49052 1 vfat, Live 0xd0ebf000 dm_snapshot 16996 0 - Live 0xd0df4000 dm_mirror 20624 0 - Live 0xd0ded000 dm_mod 52568 2 dm_snapshot,dm_mirror, Live 0xd0dfe000 apm 20640 1 - Live 0xd0de6000 ide_generic 1728 0 [permanent], Live 0xd0d17000 tsdev 7872 0 - Live 0xd0d8a000 mousedev 11236 1 - Live 0xd0d34000 snd_ens1370 19296 0 - Live 0xd0d67000 gameport 15048 1 snd_ens1370, Live 0xd0d6d000 floppy 54564 0 - Live 0xd0d99000 snd_rawmidi 23136 1 snd_ens1370, Live 0xd0d7f000 snd_seq_device 8076 1 snd_rawmidi, Live 0xd0d38000 snd_pcm_oss 39520 0 - Live 0xd0d74000 snd_mixer_oss 15872 1 snd_pcm_oss, Live 0xd0d62000 rtc 12788 0 - Live 0xd0d5d000 8250_pnp 9600 0 - Live 0xd0d59000 pcilynx 18824 0 - Live 0xd0cda000 psmouse 35144 0 - Live 0xd0d3c000 serio_raw 7044 0 - Live 0xd0d14000 i2c_viapro 8724 0 - Live 0xd0d10000 snd_pcm 71940 2 snd_ens1370,snd_pcm_oss, Live 0xd0d46000 snd_timer 21124 1 snd_pcm, Live 0xd0d29000 snd_ak4531_codec 9088 1 snd_ens1370, Live 0xd0d0c000 pcspkr 3456 0 - Live 0xd0837000 snd 48932 8 snd_ens1370,snd_rawmidi,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_ak4531_codec, Live 0xd0d1c000 soundcore 8032 1 snd, Live 0xd0d09000 snd_page_alloc 10056 2 snd_ens1370,snd_pcm, Live 0xd0d05000 via686a 15432 0 - Live 0xd0d00000 shpchp 35040 0 - Live 0xd0ccd000 pci_hotplug 30080 1 shpchp, Live 0xd0cf7000 ieee1394 88568 1 pcilynx, Live 0xd0ce0000 i2c_algo_bit 8072 1 pcilynx, Live 0xd0bcc000 i2c_isa 5696 1 via686a, Live 0xd0bc9000 i2c_core 21056 5 pcilynx,i2c_viapro,via686a,i2c_algo_bit,i2c_isa, Live 0xd0bb5000 parport_pc 33124 1 - Live 0xd0cbb000 parport 34056 3 ppdev,lp,parport_pc, Live 0xd0cb1000 via_agp 10048 1 - Live 0xd0bb1000 agpgart 30600 1 via_agp, Live 0xd0bbc000 evdev 9728 0 - Live 0xd0bad000 reiserfs 219904 2 - Live 0xd0bd4000 ide_cd 37088 0 - Live 0xd0b81000 cdrom 33760 1 ide_cd, Live 0xd0b8c000 ide_disk 15872 8 - Live 0xd0830000 generic 5828 0 [permanent], Live 0xd0814000 3c59x 41576 0 - Live 0xd0839000 mii 5760 1 3c59x, Live 0xd0827000 via82cxxx 8964 0 [permanent], Live 0xd0810000 ide_core 101256 5 ide_generic,ide_cd,ide_disk,generic,via82cxxx, Live 0xd0866000 uhci_hcd 22024 0 - Live 0xd0820000 usbcore 124100 2 uhci_hcd, Live 0xd0846000 processor 30728 0 - Live 0xd0817000 Loaded driver and hardware information (/proc/ioports, /proc/iomem) : 0000-001f : dma1 0020-0021 : pic1 0040-0043 : timer0 0050-0053 : timer1 0060-006f : keyboard 0070-0077 : rtc 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 0170-0177 : ide1 01f0-01f7 : ide0 02f8-02ff : serial 0376-0376 : ide1 0378-037a : parport0 037b-037f : parport0 03c0-03df : vesafb 03f2-03f5 : floppy 03f6-03f6 : ide0 03f7-03f7 : floppy DIR 03f8-03ff : serial 0cf8-0cff : PCI conf1 5000-500f : 0000:00:07.4 5000-5007 : vt596_smbus 6000-607f : 0000:00:07.4 6000-607f : via686a d000-d00f : 0000:00:07.1 d000-d007 : ide0 d008-d00f : ide1 d400-d41f : 0000:00:07.2 d400-d41f : uhci_hcd d800-d81f : 0000:00:07.3 d800-d81f : uhci_hcd e000-e03f : 0000:00:09.0 e000-e03f : Ensoniq AudioPCI e400-e43f : 0000:00:0c.0 00000000-0009fbff : System RAM 00000000-00000000 : Crash kernel 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000cc7ff : Video ROM 000f0000-000fffff : System ROM 00100000-0ffeffff : System RAM 00100000-0029573c : Kernel code 0029573d-00327c33 : Kernel data 0fff0000-0fff2fff : ACPI Non-volatile Storage 0fff3000-0fffffff : ACPI Tables 20000000-2000ffff : 0000:00:0a.0 20010000-2001ffff : 0000:00:0c.0 d0000000-d7ffffff : PCI Bus #01 d0000000-d7ffffff : 0000:01:00.0 d0000000-d3ffffff : vesafb d8000000-dbffffff : 0000:00:00.0 dc000000-ddffffff : PCI Bus #01 dc000000-dcffffff : 0000:01:00.0 dd000000-dd00ffff : 0000:01:00.0 df000000-df00ffff : 0000:00:0a.0 df010000-df01ffff : 0000:00:0a.0 df020000-df020fff : 0000:00:0a.0 ffff0000-ffffffff : reserved PCI information ('lspci -vvv' as root) : 00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 03) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR+ Latency: 8 Region 0: Memory at d8000000 (32-bit, prefetchable) [size=64M] Capabilities: [a0] AGP version 2.0 Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA+ ITACoh- GART64- HTrans- 64bit- FW- AGP3- Rate=x1,x2,x4 Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none> Capabilities: [c0] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (prog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ >SERR- <PERR- Latency: 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 0000f000-00000fff Memory behind bridge: dc000000-ddffffff Prefetchable memory behind bridge: d0000000-d7ffffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B- Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 40) Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 Capabilities: [c0] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:07.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) (prog-if 8a [Master SecP PriP]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 Region 4: I/O ports at d000 [size=16] Capabilities: [c0] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:07.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 1a) (prog-if 00 [UHCI]) Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32, Cache Line Size: 32 bytes Interrupt: pin D routed to IRQ 10 Region 4: I/O ports at d400 [size=32] Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:07.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 1a) (prog-if 00 [UHCI]) Subsystem: VIA Technologies, Inc. (Wrong ID) USB Controller Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32, Cache Line Size: 32 bytes Interrupt: pin D routed to IRQ 10 Region 4: I/O ports at d800 [size=32] Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:07.4 Host bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40) Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin ? routed to IRQ 11 Capabilities: [68] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 00:09.0 Multimedia audio controller: Ensoniq ES1370 [AudioPCI] Subsystem: Unknown device 4942:4c4c Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort+ <MAbort+ >SERR- <PERR- Latency: 32 (3000ns min, 32000ns max) Interrupt: pin A routed to IRQ 9 Region 0: I/O ports at e000 [size=64] 00:0a.0 FireWire (IEEE 1394): Texas Instruments PCILynx/PCILynx2 IEEE 1394 Link Layer Controller (rev 02) (prog-if 00 [Generic]) Subsystem: Supermac Technology Unknown device 6951 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32, Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 11 Region 0: Memory at df020000 (32-bit, non-prefetchable) [size=4K] Region 1: Memory at df010000 (32-bit, non-prefetchable) [size=64K] Region 2: Memory at df000000 (32-bit, non-prefetchable) [size=64K] [virtual] Expansion ROM at 20000000 [disabled] [size=64K] 00:0c.0 Ethernet controller: 3Com Corporation 3c900 10BaseT [Boomerang] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (750ns min, 2000ns max) Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at e400 [size=64] [virtual] Expansion ROM at 20010000 [disabled] [size=64K] 01:00.0 VGA compatible controller: nVidia Corporation NV11DDR [GeForce2 MX 100 DDR/200 DDR] (rev b2) (prog-if 00 [VGA]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 32 (1250ns min, 250ns max) Interrupt: pin A routed to IRQ 10 Region 0: Memory at dc000000 (32-bit, non-prefetchable) [size=16M] Region 1: Memory at d0000000 (32-bit, prefetchable) [size=128M] [virtual] Expansion ROM at dd000000 [disabled] [size=64K] Capabilities: [60] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- Capabilities: [44] AGP version 2.0 Status: RQ=32 Iso- ArqSz=0 Cal=0 SBA- ITACoh- GART64- HTrans- 64bit- FW+ AGP3- Rate=x1,x2,x4 Command: RQ=1 ArqSz=0 Cal=0 SBA- AGP- GART64- 64bit- FW- Rate=<none> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
