I've got a relatively new system that doesn't seem to be able to hotplug SATA disks. I see the same behavior on 3.10, 3.11-rc2, and Ubuntu's 3.8.0-25-generic. The disks are detected right away on reboots, but even after poking the /sys/class/scsi_host/host*/scan files, new disks are never detected. I've disabled link power management.
Am I doing something stupid here? I thought this "just worked" on my previous hardware. The motherboard is an Intel DH87RL. The SATA controller is: > 00:1f.2 SATA controller: Intel Corporation Lynx Point 6-port SATA Controller > 1 [AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0]) > Subsystem: Intel Corporation Device 204a > 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 B routed to IRQ 41 > Region 0: I/O ports at f0d0 [size=8] > Region 1: I/O ports at f0c0 [size=4] > Region 2: I/O ports at f0b0 [size=8] > Region 3: I/O ports at f0a0 [size=4] > Region 4: I/O ports at f060 [size=32] > Region 5: Memory at f7d3a000 (32-bit, non-prefetchable) [size=2K] > Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit- > Address: fee2200c Data: 4191 > Capabilities: [70] Power Management version 3 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA > PME(D0-,D1-,D2-,D3hot+,D3cold-) > Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- > Capabilities: [a8] SATA HBA v1.0 BAR4 Offset=00000004 > Kernel driver in use: ahci Relevant dmesg from boot: ahci 0000:00:1f.2: version 3.0 ahci 0000:00:1f.2: irq 41 for MSI/MSI-X ahci 0000:00:1f.2: AHCI 0001.0300 32 slots 5 ports 6 Gbps 0x1e impl SATA mode ahci 0000:00:1f.2: flags: 64bit ncq pm led clo pio slum part ems apst ahci 0000:00:1f.2: setting latency timer to 64 scsi0 : ahci scsi1 : ahci scsi2 : ahci scsi3 : ahci scsi4 : ahci ata1: DUMMY ata2: SATA max UDMA/133 abar m2048@0xf7d3a000 port 0xf7d3a180 irq 41 ata3: SATA max UDMA/133 abar m2048@0xf7d3a000 port 0xf7d3a200 irq 41 ata4: SATA max UDMA/133 abar m2048@0xf7d3a000 port 0xf7d3a280 irq 41 ata5: SATA max UDMA/133 abar m2048@0xf7d3a000 port 0xf7d3a300 irq 41 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
