Hi, Since the rc's of 2.6.24, my machine crashes when I try to use the USB dongle. No other activity seems to create a crash. The system is stable with 2.6.23.1. It is a Dell Dimension 8400 updated daily to mandriva cooker. I am not subscribed to this list, so please CC me if there is any more information I can provide.
Here is the Oops with 2.6.25-rc1: BUG: unable to handle kernel NULL pointer dereference at 00000000 IP: [<c0131f3e>] get_next_timer_interrupt+0xfe/0x210 *pde = 00000000 Oops: 0000 [#1] SMP Modules linked in: hidp rfcomm l2cap nfsd auth_rpcgss exportfs nfs lockd nfs_acl sunrpc af_packet binfmt_misc loop nls_iso8859_1 nls_cp437 vfat fat dm_mod piix ide_core fuse snd_pcm_oss snd_mixer_oss hci_usb snd_intel8x0 snd_ac97_codec ac97_bus thermal button snd_pcm i2c_i801 snd_timer parport_pc processor snd parport pcspkr i2c_core evdev dcdbas tg3 soundcore rtc_cmos bluetooth snd_page_alloc iTCO_wdt sr_mod iTCO_vendor_support sg ata_piix ahci libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ssb pcmcia pcmcia_core ehci_hcd usbcore [last unloaded: scsi_wait_scan] Pid: 0, comm: swapper Not tainted (2.6.25-rc1 #1) EIP: 0060:[<c0131f3e>] EFLAGS: 00010097 CPU: 0 EIP is at get_next_timer_interrupt+0xfe/0x210 EAX: 00000000 EBX: 00000000 ECX: c047e7dc EDX: 00000000 ESI: 00000026 EDI: c047e6ac EBP: c03f5f60 ESP: c03f5f28 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 Process swapper (pid: 0, ti=c03f4000 task=c03c9300 task.ti=c03f4000) Stack: 0005a600 0005a55b c047dea0 00000000 00000001 00000026 000005a6 c047e6ac c047e8ac c047eaac c047ecac c1808340 ffc484c0 0005a55b c03f5fa4 c014627c ffd3c700 c03c9300 c03c947c c180b420 ffc4cdde 0000009b ffc484c0 0000009b Call Trace: [<c014627c>] ? tick_nohz_stop_sched_tick+0x13c/0x350 [<c014658c>] ? tick_nohz_restart_sched_tick+0xfc/0x140 [<c0103a20>] ? default_idle+0x0/0xa0 [<c0103854>] ? cpu_idle+0x34/0x110 [<c0322519>] ? rest_init+0x49/0x50 ======================= Code: e0 89 c6 89 45 dc 8d b4 26 00 00 00 00 8b 04 f7 8b 10 0f 18 02 90 8d 0c f7 39 c8 0f 84 83 00 00 00 8b 40 08 39 d8 0f 48 d8 89 d0 <8b> 12 0f 18 02 90 39 c1 75 ec c7 45 d4 01 00 00 00 8b 7d dc 85 EIP: [<c0131f3e>] get_next_timer_interrupt+0xfe/0x210 SS:ESP 0068:c03f5f28 ---[ end trace 5fb484ad8037e593 ]--- Kernel panic - not syncing: Attempted to kill the idle task! $ lsub -vvv 00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) USB UHCI #3 (rev 03) (prog-if 00 [UHCI]) Subsystem: Dell Dimension 8400 Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin C routed to IRQ 18 Region 4: I/O ports at ff40 [size=32] Kernel driver in use: uhci_hcd Kernel modules: uhci-hcd # ./ver_linux Linux macine.domain.com 2.6.25-rc1 #1 SMP Fri Feb 15 14:39:54 PST 2008 i686 Intel(R) Pentium(R) 4 CPU 3.20GHz GNU/Linux Gnu C 4.2.2 Gnu make 3.81 binutils 2.18.50.0.3.20071102 util-linux 2.13.1 mount 2.13.1 module-init-tools 3.3-pre11 e2fsprogs 1.40.6 PPP 2.4.4 Linux C Library 2.7 Dynamic linker (ldd) 2.7 Procps 3.2.7 Net-tools 1.60 Kbd 1.12 Sh-utils 6.10 udev 118 Modules Loaded nfsd auth_rpcgss exportfs nfs lockd nfs_acl sunrpc af_packet binfmt_misc loop nls_iso8859_1 nls_cp437 vfat fat dm_mod piix ide_core fuse snd_pcm_oss snd_mixer_oss hci_usb snd_intel8x0 snd_ac97_codec thermal ac97_bus i2c_i801 snd_pcm processor button i2c_core parport_pc snd_timer pcspkr iTCO_wdt sr_mod rtc_cmos parport snd iTCO_vendor_support soundcore bluetooth dcdbas tg3 evdev snd_page_alloc sg ata_piix ahci libata sd_mod scsi_mod ext3 jbd uhci_hcd ohci_hcd ssb pcmcia pcmcia_core ehci_hcd usbcore Bus 003 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 224 Wireless bDeviceSubClass 1 Radio Frequency bDeviceProtocol 1 Bluetooth bMaxPacketSize0 64 idVendor 0x0a12 Cambridge Silicon Radio, Ltd idProduct 0x0001 Bluetooth Dongle (HCI mode) bcdDevice 1.84 iManufacturer 0 iProduct 0 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 193 bNumInterfaces 3 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0000 1x 0 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0000 1x 0 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0009 1x 9 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0009 1x 9 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 2 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0011 1x 17 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0011 1x 17 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 3 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0019 1x 25 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0019 1x 25 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 4 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0021 1x 33 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0021 1x 33 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 5 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0031 1x 49 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0031 1x 49 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 2 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 254 Application Specific Interface bInterfaceSubClass 1 Device Firmware Update bInterfaceProtocol 0 iInterface 0 ** UNRECOGNIZED: 07 21 07 88 13 ff 03 Device Status: 0x0000 (Bus Powered) Bus 003 Device 001: ID 1d6b:0001 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 Unused bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x1d6b idProduct 0x0001 bcdDevice 2.06 iManufacturer 3 Linux 2.6.25-rc1 uhci_hcd iProduct 2 UHCI Host Controller iSerial 1 0000:00:1d.1 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 Unused bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 1 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0103 power enable connect Port 2: 0000.0100 power Device Status: 0x0003 Self Powered Remote Wakeup Enabled Thank you for your time. -- kk1 -- 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/