https://bugzilla.kernel.org/show_bug.cgi?id=188141 Bug ID: 188141 Summary: PCI0680 can't work reliably in UDMA mode over 33 Product: IO/Storage Version: 2.5 Kernel Version: 4.8.0-27-generic #29-Ubuntu SMP Thu Oct 20 21:03:13 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: high Priority: P1 Component: IDE Assignee: io_ide@xxxxxxxxxxxxxxxxxxxx Reporter: ilario.gottardello@xxxxxxxxx Regression: No Subsituting an HPT366 IDE controller with a Silicon Image, Inc. PCI0680 Ultra ATA-133 Host Controller (rev 02) (so same pci slot / cables / hard drives), it immediately fails to read data from the disks, slowing down the link to UDMA/33. Here the log on dmesg: [ 526.912245] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 526.912252] ata3.00: failed command: READ DMA EXT [ 526.912258] ata3.00: cmd 25/00:00:4f:98:ee/00:04:01:00:00/e0 tag 0 dma 524288 in res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) [ 526.912261] ata3.00: status: { DRDY } [ 531.951419] ata3: link is slow to respond, please be patient (ready=0) [ 536.930691] ata3: device not ready (errno=-16), forcing hardreset [ 536.930705] ata3: soft resetting link [ 537.145123] ata3.00: configured for UDMA/133 [ 537.145138] ata3: EH complete [ 569.918070] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 569.918076] ata3.00: failed command: READ DMA [ 569.918083] ata3.00: cmd c8/00:50:ef:ba:2f/00:00:00:00:00/e1 tag 0 dma 40960 in res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) [ 569.918086] ata3.00: status: { DRDY } [ 574.957860] ata3: link is slow to respond, please be patient (ready=0) [ 579.945773] ata3: device not ready (errno=-16), forcing hardreset [ 579.945788] ata3: soft resetting link [ 580.159919] ata3.00: configured for UDMA/133 [ 580.159933] ata3: EH complete [ 612.924604] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 612.924610] ata3.00: failed command: READ DMA EXT [ 612.924616] ata3.00: cmd 25/00:00:4f:10:da/00:04:01:00:00/e0 tag 0 dma 524288 in res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) [ 612.924619] ata3.00: status: { DRDY } [ 617.968302] ata3: link is slow to respond, please be patient (ready=0) [ 622.948039] ata3: device not ready (errno=-16), forcing hardreset [ 622.948053] ata3: soft resetting link [ 623.162218] ata3.00: configured for UDMA/133 [ 623.162232] ata3: EH complete [ 655.930086] ata3.00: limiting speed to UDMA/100:PIO4 [ 655.930089] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 655.930095] ata3.00: failed command: READ DMA EXT [ 655.930101] ata3.00: cmd 25/00:a8:8f:4e:a8/00:02:01:00:00/e0 tag 0 dma 348160 in res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) [ 655.930104] ata3.00: status: { DRDY } [ 660.933621] ata3: link is slow to respond, please be patient (ready=0) [ 665.985242] ata3: device not ready (errno=-16), forcing hardreset [ 665.985256] ata3: soft resetting link [ 666.180539] ata3.00: configured for UDMA/100 [ 666.180553] ata3: EH complete [ 698.934573] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 698.934580] ata3.00: failed command: READ DMA EXT [ 698.934586] ata3.00: cmd 25/00:00:f7:ad:aa/00:08:01:00:00/e0 tag 0 dma 1048576 in res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) [ 698.934589] ata3.00: status: { DRDY } [ 703.986089] ata3: link is slow to respond, please be patient (ready=0) [ 708.969586] ata3: device not ready (errno=-16), forcing hardreset [ 708.969600] ata3: soft resetting link [ 709.164047] ata3.00: configured for UDMA/100 [ 709.164063] ata3: EH complete [ 741.938477] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 741.938484] ata3.00: failed command: READ DMA EXT [ 741.938489] ata3.00: cmd 25/00:00:47:9f:a3/00:08:01:00:00/e0 tag 0 dma 1048576 in res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) [ 741.938492] ata3.00: status: { DRDY } [ 746.977880] ata3: link is slow to respond, please be patient (ready=0) [ 751.957395] ata3: device not ready (errno=-16), forcing hardreset [ 751.957410] ata3: soft resetting link [ 752.152040] ata3.00: configured for UDMA/100 [ 752.152055] ata3: EH complete [ 784.941944] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 784.941951] ata3.00: failed command: READ DMA EXT [ 784.941958] ata3.00: cmd 25/00:08:47:ac:da/00:04:01:00:00/e0 tag 0 dma 528384 in res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) [ 784.941961] ata3.00: status: { DRDY } [ 789.985298] ata3: link is slow to respond, please be patient (ready=0) [ 794.988755] ata3: device not ready (errno=-16), forcing hardreset [ 794.988768] ata3: soft resetting link [ 795.183363] ata3.00: configured for UDMA/100 [ 795.183377] ata3: EH complete [ 827.945045] ata3.00: limiting speed to UDMA/33:PIO4 [ 827.945047] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 827.945051] ata3.00: failed command: READ DMA [ 827.945055] ata3.00: cmd c8/00:58:9f:ed:a4/00:00:00:00:00/e1 tag 0 dma 45056 in res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) [ 827.945056] ata3.00: status: { DRDY } [ 832.996422] ata3: link is slow to respond, please be patient (ready=0) [ 837.983822] ata3: device not ready (errno=-16), forcing hardreset [ 837.983836] ata3: soft resetting link [ 838.178364] ata3.00: configured for UDMA/33 [ 838.178377] ata3: EH complete -- You are receiving this mail because: You are watching the assignee of the bug. -- 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
