Hi! On my hp nx7300 laptop, 2 following scenarios can happen during bootup (see attachments for the full logs): the "good" one [1] and the one where multiple EHs lead to limiting the speed [2]. [1] one is more rare, but it seems to be persistent over reboots: once it happened, just rebooting the machine always results in behaviour like [1]. [1] results in a working cdrom from the start. An attempt to use cdrom after [2] happened results in even more EHs, resulting in "configured for PIO4", after which the cdrom is finaly working. The version I'm using is 2.6.23-rc6, but the same used to happen with the previous rc's, and probably with 2.6.22 too (I can check). -- Sergey [1]: [ 13.026676] ata_piix 0000:00:1f.1: version 2.12 [ 13.026701] ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 16 (level, low) -> IRQ 16 [ 13.026898] PCI: Setting latency timer of device 0000:00:1f.1 to 64 [ 13.026994] scsi4 : ata_piix [ 13.027209] scsi5 : ata_piix [ 13.027385] ata5: PATA max UDMA/133 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x000140a0 irq 14 [ 13.027484] ata6: PATA max UDMA/133 cmd 0x00010170 ctl 0x00010376 bmdma 0x000140a8 irq 15 [ 13.339308] ata5.00: ATAPI: HL-DT-ST DVDRAM GSA-T10N, PC05, max MWDMA2 [ 13.505922] ata5.00: configured for MWDMA2 [ 13.506026] ata6: port disabled. ignoring. [ 13.509916] scsi 4:0:0:0: CD-ROM HL-DT-ST DVDRAM GSA-T10N PC05 PQ: 0 ANSI: 5 [2]: [ 10.007152] ata_piix 0000:00:1f.1: version 2.12 [ 10.007178] ACPI: PCI Interrupt 0000:00:1f.1[A] -> GSI 16 (level, low) -> IRQ 16 [ 10.007369] PCI: Setting latency timer of device 0000:00:1f.1 to 64 [ 10.007464] scsi4 : ata_piix [ 10.007680] scsi5 : ata_piix [ 10.007856] ata5: PATA max UDMA/133 cmd 0x000101f0 ctl 0x000103f6 bmdma 0x000140a0 irq 14 [ 10.007956] ata6: PATA max UDMA/133 cmd 0x00010170 ctl 0x00010376 bmdma 0x000140a8 irq 15 [ 10.320462] ata5.00: ATAPI: HL-DT-ST DVDRAM GSA-T10N, PC05, max MWDMA2 [ 10.487077] ata5.00: configured for MWDMA2 [ 10.487181] ata6: port disabled. ignoring. [ 15.985240] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen [ 15.985325] ata5.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 96 in [ 15.985327] res 40/00:02:00:24:00/00:00:00:00:00/a0 Emask 0x4 (timeout) [ 15.985532] ata5: soft resetting port [ 16.465489] ata5.00: configured for MWDMA2 [ 16.465571] ata5: EH complete [ 21.963643] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen [ 21.963725] ata5.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 96 in [ 21.963727] res 40/00:02:00:24:00/00:00:00:00:00/a0 Emask 0x4 (timeout) [ 21.963930] ata5: soft resetting port [ 22.443900] ata5.00: configured for MWDMA2 [ 22.443979] ata5: EH complete [ 27.942051] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen [ 27.942134] ata5.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 96 in [ 27.942136] res 40/00:02:00:24:00/00:00:00:00:00/a0 Emask 0x4 (timeout) [ 27.942341] ata5: soft resetting port [ 28.422309] ata5.00: configured for MWDMA2 [ 28.422389] ata5: EH complete [ 33.920457] ata5.00: limiting speed to MWDMA1:PIO4 [ 33.920532] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen [ 33.920614] ata5.00: cmd a0/01:00:00:00:00/00:00:00:00:00/a0 tag 0 cdb 0x12 data 96 in [ 33.920616] res 40/00:02:00:24:00/00:00:00:00:00/a0 Emask 0x4 (timeout) [ 33.920820] ata5: soft resetting port [ 34.400708] ata5.00: configured for MWDMA1 [ 34.400790] ata5: EH complete [ 34.400869] scsi scan: 96 byte inquiry failed. Consider BLIST_INQUIRY_36 for this device [ 34.402855] scsi 4:0:0:0: CD-ROM HL-DT-ST DVDRAM GSA-T10N PC05 PQ: 0 ANSI: 5
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