On Thu, 26 Jul 2007 15:31:10 +0900, Tejun Heo wrote: > Mikael Pettersson wrote: > > On Tue, 24 Jul 2007 17:32:29 +0900, Tejun Heo wrote: > >> Mikael Pettersson wrote: > >>> This machine has a known good Samsung SATA DVD on ICH8 [8086:2820]. > >>> With kernel 2.6.23-rc1 I now get the following: > >>> > >>>> ata_piix 0000:00:1f.2: version 2.11 > >>>> ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ] > >>>> ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 19 > >>>> PCI: Setting latency timer of device 0000:00:1f.2 to 64 > >>>> scsi2 : ata_piix > >>>> scsi3 : ata_piix > >>>> ata3: SATA max UDMA/133 cmd 0x0001ec00 ctl 0x0001e882 bmdma 0x0001e400 irq 19 > >>>> ata4: SATA max UDMA/133 cmd 0x0001e800 ctl 0x0001e482 bmdma 0x0001e408 irq 19 > >>>> ata4.00: ATAPI: TSSTcorpCD/DVDW SH-S183A, SB00, max UDMA/33 > >>>> ata4.00: applying bridge limits > >>>> ata4.00: configured for UDMA/33 > >>>> ata4: EH pending after completion, repeating EH (cnt=4) > >>>> scsi 3:0:0:0: CD-ROM TSSTcorp CD/DVDW SH-S183A SB00 PQ: 0 ANSI: 5 > >>> The "EH pending after completion" is new and did not occur with 2.6.22. > >>> Apart from that message, things seem fine. > >> Hmmm... That means someone requested EH while EH was in progress. > >> Weird. Can you apply the attached patch and report what the kernel > >> says? Thanks. > > > > Here it is. As you can see from the traces, the machine also has a > > pdc20269 controller driven by pata_pdc2027x. > > Hmm... I missed one path. Can you please try the attached patch? Thanks. Sure, here are the boot messages with the newer debug patch: pata_pdc2027x 0000:04:02.0: PLL input clock 16660 kHz scsi0 : pata_pdc2027x scsi1 : pata_pdc2027x ata1: PATA max UDMA/133 cmd 0xf88297c0 ctl 0xf8829fda bmdma 0xf8829000 irq 18 ata2: PATA max UDMA/133 cmd 0xf88295c0 ctl 0xf8829dda bmdma 0xf8829008 irq 18 EH scheduled with LOADING set [<c022bd0e>] ata_host_register+0x1ee/0x2c0 [<c022c780>] ata_interrupt+0x0/0x200 [<c022be59>] ata_host_activate+0x79/0x90 [<c02342fa>] pdc2027x_init_one+0x23a/0x2d0 [<c01cda96>] pci_device_probe+0x56/0x80 [<c020e4a8>] driver_probe_device+0x88/0x190 [<c0296395>] klist_next+0x55/0xb0 [<c020e6fa>] __driver_attach+0x7a/0x80 [<c020d8ba>] bus_for_each_dev+0x3a/0x60 [<c020e326>] driver_attach+0x16/0x20 [<c020e680>] __driver_attach+0x0/0x80 [<c020dc7a>] bus_add_driver+0x8a/0x1b0 [<c01cdc46>] __pci_register_driver+0x56/0x90 [<c032b830>] kernel_init+0x140/0x310 [<c0102a12>] ret_from_fork+0x6/0x1c [<c032b6f0>] kernel_init+0x0/0x310 [<c032b6f0>] kernel_init+0x0/0x310 [<c0103717>] kernel_thread_helper+0x7/0x10 ======================= ata1: soft resetting port ata1.00: ATA-7: ST3320620A, 3.AAD, max UDMA/100 ata1.00: 625142448 sectors, multi 16: LBA48 ata1.00: configured for UDMA/100 ata1: EH complete EH scheduled with LOADING set [<c022bd0e>] ata_host_register+0x1ee/0x2c0 [<c022c780>] ata_interrupt+0x0/0x200 [<c022be59>] ata_host_activate+0x79/0x90 [<c02342fa>] pdc2027x_init_one+0x23a/0x2d0 [<c01cda96>] pci_device_probe+0x56/0x80 [<c020e4a8>] driver_probe_device+0x88/0x190 [<c0296395>] klist_next+0x55/0xb0 [<c020e6fa>] __driver_attach+0x7a/0x80 [<c020d8ba>] bus_for_each_dev+0x3a/0x60 [<c020e326>] driver_attach+0x16/0x20 [<c020e680>] __driver_attach+0x0/0x80 [<c020dc7a>] bus_add_driver+0x8a/0x1b0 [<c01cdc46>] __pci_register_driver+0x56/0x90 [<c032b830>] kernel_init+0x140/0x310 [<c0102a12>] ret_from_fork+0x6/0x1c [<c032b6f0>] kernel_init+0x0/0x310 [<c032b6f0>] kernel_init+0x0/0x310 [<c0103717>] kernel_thread_helper+0x7/0x10 ======================= ata2: soft resetting port ata2: EH complete scsi 0:0:0:0: Direct-Access ATA ST3320620A 3.AA PQ: 0 ANSI: 5 sd 0:0:0:0: [sda] 625142448 512-byte hardware sectors (320073 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sd 0:0:0:0: [sda] 625142448 512-byte hardware sectors (320073 MB) sd 0:0:0:0: [sda] Write Protect is off sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00 sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 sda9 sda10 > sd 0:0:0:0: [sda] Attached SCSI disk ... ata_piix 0000:00:1f.2: version 2.11 ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ] ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 19 PCI: Setting latency timer of device 0000:00:1f.2 to 64 scsi2 : ata_piix scsi3 : ata_piix ata3: SATA max UDMA/133 cmd 0x0001ec00 ctl 0x0001e882 bmdma 0x0001e400 irq 19 ata4: SATA max UDMA/133 cmd 0x0001e800 ctl 0x0001e482 bmdma 0x0001e408 irq 19 EH scheduled with LOADING set [<c022bd0e>] ata_host_register+0x1ee/0x2c0 [<c02308dd>] ata_pci_init_one+0x12d/0x250 [<f8822580>] piix_init_one+0x1d0/0x540 [ata_piix] [<c01cda96>] pci_device_probe+0x56/0x80 [<c020e4a8>] driver_probe_device+0x88/0x190 [<c0296395>] klist_next+0x55/0xb0 [<c020e6fa>] __driver_attach+0x7a/0x80 [<c020d8ba>] bus_for_each_dev+0x3a/0x60 [<c020e326>] driver_attach+0x16/0x20 [<c020e680>] __driver_attach+0x0/0x80 [<c020dc7a>] bus_add_driver+0x8a/0x1b0 [<c01cdc46>] __pci_register_driver+0x56/0x90 [<f8834014>] piix_init+0x14/0x26 [ata_piix] [<c0139fc6>] sys_init_module+0x126/0x1860 [<c0113f54>] do_page_fault+0x484/0x670 [<c0227370>] ata_port_start+0x0/0x70 [<c0102b2e>] syscall_call+0x7/0xb [<c0290000>] rtmsg_fib+0x70/0x180 ======================= ata3: soft resetting port ata3: EH complete EH scheduled with LOADING set [<c022bd0e>] ata_host_register+0x1ee/0x2c0 [<c02308dd>] ata_pci_init_one+0x12d/0x250 [<f8822580>] piix_init_one+0x1d0/0x540 [ata_piix] [<c01cda96>] pci_device_probe+0x56/0x80 [<c020e4a8>] driver_probe_device+0x88/0x190 [<c0296395>] klist_next+0x55/0xb0 [<c020e6fa>] __driver_attach+0x7a/0x80 [<c020d8ba>] bus_for_each_dev+0x3a/0x60 [<c020e326>] driver_attach+0x16/0x20 [<c020e680>] __driver_attach+0x0/0x80 [<c020dc7a>] bus_add_driver+0x8a/0x1b0 [<c01cdc46>] __pci_register_driver+0x56/0x90 [<f8834014>] piix_init+0x14/0x26 [ata_piix] [<c0139fc6>] sys_init_module+0x126/0x1860 [<c0113f54>] do_page_fault+0x484/0x670 [<c0227370>] ata_port_start+0x0/0x70 [<c0102b2e>] syscall_call+0x7/0xb [<c0290000>] rtmsg_fib+0x70/0x180 ======================= ata4: soft resetting port ata4.00: ATAPI: TSSTcorpCD/DVDW SH-S183A, SB00, max UDMA/33 ata4.00: applying bridge limits ata4.00: configured for UDMA/33 ata4: EH pending after completion, repeating EH (cnt=4) ata4: EH complete scsi 3:0:0:0: CD-ROM TSSTcorp CD/DVDW SH-S183A SB00 PQ: 0 ANSI: 5 ata_piix 0000:00:1f.5: MAP [ P0 P2 P1 P3 ] ACPI: PCI Interrupt 0000:00:1f.5[B] -> GSI 19 (level, low) -> IRQ 19 PCI: Setting latency timer of device 0000:00:1f.5 to 64 scsi4 : ata_piix scsi5 : ata_piix ata5: SATA max UDMA/133 cmd 0x0001d400 ctl 0x0001d082 bmdma 0x0001c880 irq 19 ata6: SATA max UDMA/133 cmd 0x0001d000 ctl 0x0001cc02 bmdma 0x0001c888 irq 19 EH scheduled with LOADING set [<c022bd0e>] ata_host_register+0x1ee/0x2c0 [<c02308dd>] ata_pci_init_one+0x12d/0x250 [<f8822580>] piix_init_one+0x1d0/0x540 [ata_piix] [<c01cda96>] pci_device_probe+0x56/0x80 [<c020e4a8>] driver_probe_device+0x88/0x190 [<c0296395>] klist_next+0x55/0xb0 [<c020e6fa>] __driver_attach+0x7a/0x80 [<c020d8ba>] bus_for_each_dev+0x3a/0x60 [<c020e326>] driver_attach+0x16/0x20 [<c020e680>] __driver_attach+0x0/0x80 [<c020dc7a>] bus_add_driver+0x8a/0x1b0 [<c01cdc46>] __pci_register_driver+0x56/0x90 [<f8834014>] piix_init+0x14/0x26 [ata_piix] [<c0139fc6>] sys_init_module+0x126/0x1860 [<c0113f54>] do_page_fault+0x484/0x670 [<c0227370>] ata_port_start+0x0/0x70 [<c0102b2e>] syscall_call+0x7/0xb [<c0290000>] rtmsg_fib+0x70/0x180 ======================= ata5: soft resetting port ata5: EH complete EH scheduled with LOADING set [<c022bd0e>] ata_host_register+0x1ee/0x2c0 [<c02308dd>] ata_pci_init_one+0x12d/0x250 [<f8822580>] piix_init_one+0x1d0/0x540 [ata_piix] [<c01cda96>] pci_device_probe+0x56/0x80 [<c020e4a8>] driver_probe_device+0x88/0x190 [<c0296395>] klist_next+0x55/0xb0 [<c020e6fa>] __driver_attach+0x7a/0x80 [<c020d8ba>] bus_for_each_dev+0x3a/0x60 [<c020e326>] driver_attach+0x16/0x20 [<c020e680>] __driver_attach+0x0/0x80 [<c020dc7a>] bus_add_driver+0x8a/0x1b0 [<c01cdc46>] __pci_register_driver+0x56/0x90 [<f8834014>] piix_init+0x14/0x26 [ata_piix] [<c0139fc6>] sys_init_module+0x126/0x1860 [<c0113f54>] do_page_fault+0x484/0x670 [<c0227370>] ata_port_start+0x0/0x70 [<c0102b2e>] syscall_call+0x7/0xb [<c0290000>] rtmsg_fib+0x70/0x180 ======================= ata6: soft resetting port ata6: EH complete - To 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