This did not happen in 2.6.0-test9-bk15. I also tried with pci=noacpiand got the same situation. After the "badness" I get back to my prompt. I also attached a scsi disk later on which appeared to load fine and did work. But the same oops is still there. -- storage:~# modprobe aic7xxx scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.35 aic7880: Ultra Wide Channel A, SCSI Id=8, 16/253 SCBs Badness in kobject_get at lib/kobject.c:439 Call Trace: [] kobject_get+0x4c/0x50 [] get_device+0x18/0x30 [] scsi_device_get+0x2c/0x70 [] __scsi_iterate_devices+0x32/0x60 [] scsi_run_host_queues+0x19/0x50 [] ahc_linux_release_simq+0x84/0xc0 [aic7xxx] [] ahc_linux_dv_thread+0x140/0x1b0 [aic7xxx] [] ahc_linux_dv_thread+0x0/0x1b0 [aic7xxx] [] kernel_thread_helper+0x5/0xc -- storage:~# cat /proc/modules aic7xxx 207788 0 - Live 0xe08a7000 rtc 11768 0 - Live 0xe0864000 ide_cd 40580 0 - Live 0xe0814000 cdrom 34656 1 ide_cd, Live 0xe0820000 -- storage:~# dmesg Linux version 2.6.0-test10 (root@storage) (gcc version 3.3.2 (Debian)) #1 Mon Nov 24 18:45:56 CET 2003 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000001fff0000 (usable) BIOS-e820: 000000001fff0000 - 000000001fff3000 (ACPI NVS) BIOS-e820: 000000001fff3000 - 0000000020000000 (ACPI data) BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) 511MB LOWMEM available. On node 0 totalpages: 131056 DMA zone: 4096 pages, LIFO batch:1 Normal zone: 126960 pages, LIFO batch:16 HighMem zone: 0 pages, LIFO batch:1 DMI 2.3 present. ACPI: RSDP (v000 VT8371 ) @ 0x000f7890 ACPI: RSDT (v001 VT8371 AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x1fff3000 ACPI: FADT (v001 VT8371 AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x1fff3040 ACPI: DSDT (v001 VT8371 AWRDACPI 0x00001000 MSFT 0x0100000c) @ 0x00000000 Building zonelist for node : 0 Kernel command line: auto BOOT_IMAGE=Linux-2.6-10 ro root=301 console=ttyS0,9600 console=tty0 Local APIC disabled by BIOS -- reenabling. Found and enabled local APIC! Initializing CPU#0 PID hash table entries: 2048 (order 11: 16384 bytes) Detected 1050.212 MHz processor Console: colour VGA+ 80x25 Memory: 514800k/524224k available (2265k kernel code, 8676k reserved, 615k data, 392k init, 0k highmem) Calibrating delay loop... 2068.48 BogoMIPS Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) Mount-cache hash table entries: 512 (order: 0, 4096 bytes) CPU: After generic identify, caps: 0183fbff c1c7fbff 00000000 00000000 CPU: After vendor identify, caps: 0183fbff c1c7fbff 00000000 00000000 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 256K (64 bytes/line) CPU: After all inits, caps: 0183fbff c1c7fbff 00000000 00000020 Intel machine check architecture supported. Intel machine check reporting enabled on CPU#0. CPU: AMD Athlon(tm) processor stepping 04 Enabling fast FPU save and restore... done. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX enabled ExtINT on CPU#0 ESR value before enabling vector: 00000000 ESR value after enabling vector: 00000000 Using local APIC timer interrupts. calibrating APIC timer ... ..... CPU clock speed is 1049.0942 MHz. ..... host bus clock speed is 199.0989 MHz. NET: Registered protocol family 16 EISA bus registered PCI: PCI BIOS revision 2.10 entry at 0xfb4e0, last bus=1 PCI: Using configuration type 1 mtrr: v2.0 (20020519) ACPI: Subsystem revision 20031002 spurious 8259A interrupt: IRQ7. ACPI: Interpreter enabled ACPI: Using PIC for interrupt routing ACPI: PCI Root Bridge [PCI0] (00:00) PCI: Probing PCI hardware (bus 00) Disabling VIA memory write queue (PCI ID 0305, rev 03): [55] 89 & 1f -> 09 ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT] ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 7 10 *11 12 14 15) ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 *5 6 7 10 11 12 14 15) ACPI: PCI Interrupt Link [LNKC] (IRQs 1 3 4 5 6 7 10 11 12 14 15) ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 5 6 7 10 11 12 14 15) Linux Plug and Play Support v0.97 (c) Adam Belay SCSI subsystem initialized ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 5 ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 11 PCI: Using ACPI for IRQ routing PCI: if you experience problems, try using option 'pci=noacpi' or even 'acpi=off' Machine check exception polling timer started. VFS: Disk quotas dquot_6.5.1 SGI XFS for Linux with ACLs, realtime, no debug enabled SGI XFS Quota Management subsystem Initializing Cryptographic API Applying VIA southbridge workaround. PCI: Disabling Via external APIC routing Linux agpgart interface v0.100 (c) Dave Jones agpgart: Detected VIA Twister-K/KT133x/KM133 chipset agpgart: Maximum main memory to use for agp memory: 439M agpgart: AGP aperture is 32M @ 0xe8000000 Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing disabled ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A Using anticipatory io scheduler Floppy drive(s): fd0 is 1.44M FDC 0 is a post-1991 82077 Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: IDE controller at PCI slot 0000:00:07.1 VP_IDE: chipset revision 6 VP_IDE: not 100% native mode: will probe irqs later ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: VIA vt82c686b (rev 40) IDE UDMA100 controller on pci0000:00:07.1 ide0: BM-DMA at 0xd000-0xd007, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xd008-0xd00f, BIOS settings: hdc:pio, hdd:pio hda: SAMSUNG SV2001H, ATA DISK drive hdb: CD-ROM 52X/AKH, ATAPI CD/DVD-ROM drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hda: max request size: 128KiB hda: 39179952 sectors (20060 MB) w/2048KiB Cache, CHS=38869/16/63, UDMA(100) hda: hda1 hda2 mice: PS/2 mouse device common for all mice input: ImPS/2 Logitech Wheel Mouse on isa0060/serio1 serio: i8042 AUX port at 0x60,0x64 irq 12 input: AT Translated Set 2 keyboard on isa0060/serio0 serio: i8042 KBD port at 0x60,0x64 irq 1 device-mapper: 4.0.0-ioctl (2003-06-04) initialised: dm@uk.sistina.com EISA: Probing bus 0 at eisa0 NET: Registered protocol family 2 IP: routing cache hash table of 4096 buckets, 32Kbytes TCP: Hash tables configured (established 32768 bind 65536) NET: Registered protocol family 1 NET: Registered protocol family 17 kjournald starting. Commit interval 5 seconds EXT3-fs: mounted filesystem with ordered data mode. VFS: Mounted root (ext3 filesystem) readonly. Freeing unused kernel memory: 392k freed EXT3 FS on hda1, internal journal hdb: ATAPI 52X CD-ROM drive, 192kB Cache, DMA Uniform CD-ROM driver Revision: 3.12 kjournald starting. Commit interval 5 seconds EXT3 FS on dm-0, internal journal EXT3-fs: mounted filesystem with ordered data mode. kjournald starting. Commit interval 5 seconds EXT3 FS on dm-3, internal journal EXT3-fs: mounted filesystem with ordered data mode. kjournald starting. Commit interval 5 seconds EXT3 FS on dm-2, internal journal EXT3-fs: mounted filesystem with ordered data mode. kjournald starting. Commit interval 5 seconds EXT3 FS on dm-1, internal journal EXT3-fs: mounted filesystem with ordered data mode. kjournald starting. Commit interval 5 seconds EXT3 FS on dm-5, internal journal EXT3-fs: mounted filesystem with ordered data mode. Adding 327672k swap on /dev/vg00/swap. Priority:-1 extents:1 -- storage:~# cat /proc/scsi/aic7xxx/0 Adaptec AIC7xxx driver version: 6.2.35 Adaptec 2940 Pro Ultra SCSI adapter aic7880: Ultra Wide Channel A, SCSI Id=8, 16/253 SCBs Allocated SCBs: 4, SG List Length: 128 Serial EEPROM: 0xc378 0xc378 0xc378 0xc378 0xc378 0xc378 0xc378 0xc378 0xc378 0xc378 0xc378 0xc378 0xc378 0xc378 0xc378 0xc378 0x18a6 0x045f 0x2808 0x0010 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0x7c92 Target 0 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 1 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 2 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 3 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 4 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 5 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 6 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 7 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 8 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 9 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 10 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 11 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 12 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 13 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 14 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) Target 15 Negotiation Settings User: 40.000MB/s transfers (20.000MHz, offset 127, 16bit) -- storage:~# lspci -vvv 00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 03) Subsystem: ABIT Computer Corp. KT7/KT7-RAID/KT7A/KT7A-RAID Mainboard Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- 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- SERR- 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: ABIT Computer Corp.: Unknown device 0000 Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- [disabled] [size=128K] Capabilities: [dc] Power Management version 2 Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=2 PME- 00:11.0 SCSI storage controller: Adaptec AHA-2940UW Pro / AIC-788x (rev 01) Subsystem: Adaptec 2940UW Pro Ultra-Wide SCSI Controller Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR- [disabled] [size=64K] Capabilities: [dc] Power Management version 1 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=0 PME- 01:00.0 VGA compatible controller: nVidia Corporation NV15 [GeForce2 GTS/Pro] (rev a3) (prog-if 00 [VGA]) Subsystem: LeadTek Research Inc. WinFast GeForce2 GTS with TV output Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR- [disabled] [size=64K] Capabilities: [60] Power Management version 1 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= -- storage:~# cat /proc/iomem 00000000-0009fbff : System RAM 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000cc000-000cc7ff : Extension ROM 000cd000-000cd7ff : Extension ROM 000f0000-000fffff : System ROM 00100000-1ffeffff : System RAM 00100000-00336621 : Kernel code 00336622-003d053f : Kernel data 1fff0000-1fff2fff : ACPI Non-volatile Storage 1fff3000-1fffffff : ACPI Tables e0000000-e7ffffff : PCI Bus #01 e0000000-e7ffffff : 0000:01:00.0 e8000000-e9ffffff : 0000:00:00.0 ea000000-ebffffff : PCI Bus #01 ea000000-eaffffff : 0000:01:00.0 ed000000-ed00007f : 0000:00:0d.0 ed001000-ed001fff : 0000:00:11.0 ed001000-ed001fff : aic7xxx ffff0000-ffffffff : reserved -- storage:~# cat /proc/ioports 0000-001f : dma1 0020-0021 : pic1 0040-005f : timer 0060-006f : keyboard 0070-0077 : rtc 0080-008f : dma page reg 00a0-00a1 : pic2 00c0-00df : dma2 00f0-00ff : fpu 01f0-01f7 : ide0 02f8-02ff : serial 03c0-03df : vga+ 03f6-03f6 : ide0 03f8-03ff : serial 0cf8-0cff : PCI conf1 5000-500f : 0000:00:07.4 6000-607f : 0000:00:07.4 d000-d00f : 0000:00:07.1 d000-d007 : ide0 d008-d00f : ide1 dc00-dc7f : 0000:00:0d.0 dc00-dc7f : 0000:00:0d.0 e000-e0ff : 0000:00:11.0