On 02/19/2012 09:11 PM, Jiri Slaby wrote: > Hi, > > ahci hotplug stopped working here. It always worked (-next-20111206 is > the last known working for sure). I'm using -next and after plugging a > sata disk in, nothing happens. I don't *think* (in the traffic, it's > hard to tell for sure) an interrupt is generated either. I also *think* > that it works before suspend/resume, but not after. (Or maybe uptime > matters?) > > This happens before suspend on plug-in: > ata3: exception Emask 0x50 SAct 0x0 SErr 0x40d0800 action 0xe frozen > ata3: irq_stat 0x00000040, connection status changed > ata3: SError: { HostInt PHYRdyChg CommWake 10B8B DevExch } > ata3: hard resetting link > ata3: SATA link up 3.0 Gbps (SStatus 123 SControl 300) > ata3.00: ATA-8: ST31000528AS, CC38, max UDMA/133 > ata3.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 31/32) > ata3.00: configured for UDMA/133 > ata3: EH complete > scsi 2:0:0:0: Direct-Access ATA ST31000528AS CC38 PQ: 0 ANSI: 5 > sd 2:0:0:0: [sdc] 1953525168 512-byte logical blocks: (1.00 TB/931 GiB) > sd 2:0:0:0: [sdc] Write Protect is off > sd 2:0:0:0: [sdc] Mode Sense: 00 3a 00 00 > sd 2:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't > support DPO or FUA > sdc: sdc1 sdc2 > sd 2:0:0:0: [sdc] Attached SCSI disk > > After suspend/resume and plug-in, nothing appears in dmesg. Storing "- - > -" to /sys/class/scsi_host/host*/scan doesn't help. It looks like the > line is completely dead, because only ata1 and ata2 say "hard resetting > link" after this (and another two disks are connected there). > > I tried 'echo adapter >host_reset', but I get 'write error: Invalid > argument'. > > 00:1f.2 SATA controller [0106]: Intel Corporation 82801IR/IO/IH > (ICH9R/DO/DH) 6 port SATA Controller [AHCI mode] [8086:2922] (rev 02) > (prog-if 01 [AHCI 1.0]) > Subsystem: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port > SATA Controller [AHCI mode] [8086:2922] > 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 43 > Region 0: I/O ports at cc00 [size=8] > Region 1: I/O ports at c880 [size=4] > Region 2: I/O ports at c800 [size=8] > Region 3: I/O ports at c480 [size=4] > Region 4: I/O ports at c400 [size=32] > Region 5: Memory at feb7c800 (32-bit, non-prefetchable) [size=2K] > Capabilities: [80] MSI: Enable+ Count=1/16 Maskable- 64bit- > Address: fee0100c Data: 4171 > 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 > Capabilities: [b0] Vendor Specific Information: Len=06 <?> > Kernel driver in use: ahci > > Any ideas what that could be? Maybe this will help (dmesg|grep -C 2 ata3)? parport_pc 00:07: activated ata4: SATA link down (SStatus 0 SControl 300) ata3: SATA link down (SStatus 0 SControl 300) firewire_core: rediscovered device fw0 usb 5-1: reset low-speed USB device number 2 using uhci_hcd -- ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) ata2.00: configured for UDMA/133 ata3: SATA link down (SStatus 0 SControl 300) ata3: limiting SATA link speed to 1.5 Gbps sd 1:0:0:0: [sdb] Starting disk ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300) ata1.00: configured for UDMA/133 sd 0:0:0:0: [sda] Starting disk ata3: SATA link down (SStatus 0 SControl 310) ata3.00: disabled ata3.00: detaching (SCSI 2:0:0:0) Extended CMOS year: 2000 PM: resume of devices complete after 11061.816 msecs -- ata1.00: configured for UDMA/133 sd 0:0:0:0: [sda] Starting disk ata3: softreset failed (1st FIS failed) ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 310) PM: resume of devices complete after 10620.205 msecs pl2303 7-1:1.0: pl2303 converter detected > thanks, -- js suse labs -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html