Hi, I've got a few M-Systems SATA FFD 2.5" solid state disks that behave strangely with some drivers. When probing the disks on an Asus P5P800-MX motherboard's onboard SATA and with an embedded PPC440gx machine with an on-board Intel 31244 (sata_vsc) SATA controller I get the following: mort@seaking:~$ sudo modprobe ata_piix Oct 24 12:54:15 localhost kernel: ata_piix 0000:00:1f.2: version 2.00ac6 Oct 24 12:54:15 localhost kernel: ata_piix 0000:00:1f.2: MAP [ P0 -- P1 -- ] Oct 24 12:54:15 localhost kernel: PCI: Enabling device 0000:00:1f.2 (0000 -> 0001) Oct 24 12:54:15 localhost kernel: ACPI: PCI Interrupt 0000:00:1f.2[A] -> GSI 18 (level, low) -> IRQ 16 Oct 24 12:54:15 localhost kernel: PCI: Setting latency timer of device 0000:00:1f.2 to 64 Oct 24 12:54:15 localhost kernel: ata11: SATA max UDMA/133 cmd 0xAC00 ctl 0xA882 bmdma 0xA400 irq 16 Oct 24 12:54:15 localhost kernel: ata12: SATA max UDMA/133 cmd 0xA800 ctl 0xA482 bmdma 0xA408 irq 16 Oct 24 12:54:15 localhost kernel: scsi10 : ata_piix Oct 24 12:54:45 localhost kernel: ata11.00: qc timeout (cmd 0xec) Oct 24 12:54:45 localhost kernel: ata11.00: failed to IDENTIFY (I/O error, err_mask=0x4) Oct 24 12:54:46 localhost kernel: ata11.00: ATA-6, max UDMA/100, 16074752 sectors: LBA Oct 24 12:54:46 localhost kernel: ata11.00: ata11: dev 0 multi count 2 Oct 24 12:54:46 localhost kernel: ata11.00: applying bridge limits Oct 24 12:54:46 localhost kernel: ata11.00: configured for UDMA/100 Oct 24 12:54:46 localhost kernel: scsi11 : ata_piix Oct 24 12:54:46 localhost kernel: ATA: abnormal status 0x7F on port 0xA807 Oct 24 12:54:46 localhost kernel: scsi 10:0:0:0: Direct-Access ATA M-Systems FFD Se 1.03 PQ: 0 ANSI: 5 Oct 24 12:54:46 localhost kernel: SCSI device sda: 16074752 512-byte hdwr sectors (8230 MB) Oct 24 12:54:46 localhost kernel: sda: Write Protect is off Oct 24 12:54:46 localhost kernel: sda: Mode Sense: 00 3a 00 00 Oct 24 12:54:46 localhost kernel: SCSI device sda: drive cache: write back Oct 24 12:54:46 localhost kernel: SCSI device sda: 16074752 512-byte hdwr sectors (8230 MB) Oct 24 12:54:46 localhost kernel: sda: Write Protect is off Oct 24 12:54:46 localhost kernel: sda: Mode Sense: 00 3a 00 00 Oct 24 12:54:46 localhost kernel: SCSI device sda: drive cache: write back Oct 24 12:54:46 localhost kernel: sda: unknown partition table Oct 24 12:54:46 localhost kernel: sd 10:0:0:0: Attached scsi disk sda As you can see the INQUIRY command fails after 30 seconds. The x86/ata_piix machine is running 2.6.19-rc3. The PPC/sata_vsc machine is running 2.6.18. Two other controllers were tested on the x86 machine and they both worked as expected: Silicon Image, Inc. Adaptec AAR-1210SA SATA HostRAID Controller (rev 02) Promise Technology, Inc. PDC20575 (SATAII150 TX2plus) (rev 02) Is this likely a problem with the M-Systems drive or a libata/driver problem? mh -- Martin Hicks || mort@xxxxxxxx || PGP/GnuPG: 0x4C7F2BEE
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