Hi, The 2.6.12 and 2.6.12.1 kernels break the qlaxxxx driver(s). Problem description: Loading the qlaxxxx driver finds the attached FC array but doesn't find/create any SCSI devices because of the following error issued for each available LUN: scsi: host 0 channel 0 id 0 lun1 has a LUN larger than allowed by the host adapter This is the full excerpt from dmesg related to loading the qlaxxx module under 2.6.12 or 2.6.12.1 kernels (the result doesn't change if the driver is compiled in the kernel): QLogic Fibre Channel HBA Driver ACPI: PCI Interrupt 0000:05:07.0[A] -> GSI 34 (level, low) -> IRQ 34 qla2300 0000:05:07.0: Found an ISP2312, irq 34, iobase 0xf8834000 scsi0 : qla2xxx qla2300 0000:05:07.0: Configuring PCI space... qla2300 0000:05:07.0: Configure NVRAM parameters... qla2300 0000:05:07.0: Verifying loaded RISC code... qla2300 0000:05:07.0: Waiting for LIP to complete... qla2300 0000:05:07.0: LIP reset occured (f8f7). qla2300 0000:05:07.0: LIP occured (f8f7). qla2300 0000:05:07.0: LOOP UP detected (2 Gbps). qla2300 0000:05:07.0: Topology - (Loop), Host Loop address 0x0 qla2300 0000:05:07.0: QLogic Fibre Channel HBA Driver: 8.00.02b5-k QLogic QLA2340 - ISP2312: PCI-X (100 MHz) @ 0000:05:07.0 hdma-, host#=0, fw=3.03.08 IPX Vendor: nStor Model: NexStor Wahoo Rev: Type: Processor ANSI SCSI revision: 03 Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0, type 3 scsi: host 0 channel 0 id 0 lun1 has a LUN larger than allowed by the host adapt er Contrast it with the dmesg output on the 2.6.11.12 kernel: QLogic Fibre Channel HBA Driver ACPI: PCI interrupt 0000:05:07.0[A] -> GSI 34 (level, low) -> IRQ 34 qla2300 0000:05:07.0: Found an ISP2312, irq 34, iobase 0xf8834000 qla2300 0000:05:07.0: Configuring PCI space... qla2300 0000:05:07.0: Configure NVRAM parameters... qla2300 0000:05:07.0: Verifying loaded RISC code... qla2300 0000:05:07.0: Waiting for LIP to complete... qla2300 0000:05:07.0: LIP reset occured (f8f7). qla2300 0000:05:07.0: LIP occured (f8f7). qla2300 0000:05:07.0: LOOP UP detected (2 Gbps). qla2300 0000:05:07.0: Topology - (Loop), Host Loop address 0x0 scsi0 : qla2xxx qla2300 0000:05:07.0: QLogic Fibre Channel HBA Driver: 8.00.02b4-k QLogic QLA2340 - ISP2312: PCI-X (100 MHz) @ 0000:05:07.0 hdma-, host#=0, fw=3.03.08 IPX Vendor: nStor Model: NexStor Wahoo Rev: Type: Processor ANSI SCSI revision: 03 qla2300 0000:05:07.0: scsi(0:0:0:0): Enabled tagged queuing, queue depth 32. Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0, type 3 Vendor: nStor Model: NexStor Wahoo Rev: Type: Direct-Access ANSI SCSI revision: 03 qla2300 0000:05:07.0: scsi(0:0:0:1): Enabled tagged queuing, queue depth 32. SCSI device sda: 1418452992 512-byte hdwr sectors (726248 MB) SCSI device sda: drive cache: write back SCSI device sda: 1418452992 512-byte hdwr sectors (726248 MB) SCSI device sda: drive cache: write back sda: sda1 Attached scsi disk sda at scsi0, channel 0, id 0, lun 1 Attached scsi generic sg1 at scsi0, channel 0, id 0, lun 1, type 0 HW information: HP ProLiant DL385 (dual Opteron, 4GB RAM), QLA2312 FC Adapter Please let me know, if I can provide more useful information. Best regards, Jan - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html