I normally run a modified 2.6.19 kernel and it works great. I recently tried 2.6.20 and had severe SATA problems with it.
Yesterday I tried 2.6.20.3, and the problems are still there. Relevant /var/log/messages entries: Mar 14 20:45:11 daydream kernel: ata3: EH in ADMA mode, notifier 0x0 notifier_er ror 0x0 gen_ctl 0x1501000 status 0x400 Mar 14 20:45:11 daydream kernel: ata3: CPB 0: ctl_flags 0x1f, resp_flags 0x0 Mar 14 20:45:11 daydream kernel: ata3: CPB 1: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:11 daydream kernel: ata3: CPB 2: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:11 daydream kernel: ata3: CPB 3: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:11 daydream kernel: ata3: CPB 4: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:11 daydream kernel: ata3: CPB 5: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:11 daydream kernel: ata3: CPB 6: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:11 daydream kernel: ata3: CPB 7: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:11 daydream kernel: ata3: CPB 8: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:11 daydream kernel: ata3: CPB 9: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:11 daydream kernel: ata3: CPB 10: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:11 daydream kernel: ata3: CPB 11: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:11 daydream kernel: ata3: CPB 12: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 13: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 14: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 15: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 16: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 17: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 18: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 19: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 20: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 21: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 22: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 23: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 24: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 25: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:12 daydream kernel: ata3: CPB 26: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:13 daydream kernel: ata3: CPB 27: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:13 daydream kernel: ata3: CPB 28: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:13 daydream kernel: ata3: CPB 29: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:13 daydream kernel: ata3: CPB 30: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:45:13 daydream kernel: ata3: Resetting port Mar 14 20:45:13 daydream kernel: ata3.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen Mar 14 20:45:13 daydream kernel: ata3.00: cmd 61/40:00:ed:39:b1/00:00:04:00:00/4 0 tag 0 cdb 0x0 data 32768 out Mar 14 20:45:13 daydream kernel: res 40/00:00:00:00:00/00:00:00:00:00/0 0 Emask 0x4 (timeout) Mar 14 20:45:13 daydream kernel: ata3: soft resetting port Mar 14 20:45:13 daydream kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SContr ol 300) Mar 14 20:45:13 daydream kernel: ata3.00: configured for UDMA/133 Mar 14 20:45:13 daydream kernel: ata3: EH complete Mar 14 20:45:13 daydream kernel: SCSI device sdc: 156301488 512-byte hdwr sector s (80026 MB) Mar 14 20:45:13 daydream kernel: sdc: Write Protect is off Mar 14 20:45:13 daydream kernel: sdc: Mode Sense: 00 3a 00 00 Mar 14 20:45:14 daydream kernel: SCSI device sdc: write cache: enabled, read cac he: enabled, doesn't support DPO or FUA Mar 14 20:49:12 daydream kernel: ata3: EH in ADMA mode, notifier 0x0 notifier_er ror 0x0 gen_ctl 0x1501000 status 0x400 Mar 14 20:49:12 daydream kernel: ata3: CPB 0: ctl_flags 0x1f, resp_flags 0x0 Mar 14 20:49:12 daydream kernel: ata3: CPB 0: ctl_flags 0x1f, resp_flags 0x0 Mar 14 20:49:12 daydream kernel: ata3: CPB 1: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:12 daydream kernel: ata3: CPB 2: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:12 daydream kernel: ata3: CPB 3: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:12 daydream kernel: ata3: CPB 4: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:12 daydream kernel: ata3: CPB 5: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:12 daydream kernel: ata3: CPB 6: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:12 daydream kernel: ata3: CPB 7: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:12 daydream kernel: ata3: CPB 8: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:12 daydream kernel: ata3: CPB 9: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:12 daydream kernel: ata3: CPB 10: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:12 daydream kernel: ata3: CPB 11: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:18 daydream kernel: ata3: CPB 12: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:23 daydream kernel: ata3: CPB 13: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:23 daydream kernel: ata3: CPB 14: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:23 daydream kernel: ata3: CPB 15: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:26 daydream kernel: ata3: CPB 16: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:26 daydream kernel: ata3: CPB 17: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:26 daydream kernel: ata3: CPB 18: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:26 daydream kernel: ata3: CPB 19: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:27 daydream kernel: ata3: CPB 20: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:27 daydream kernel: ata3: CPB 21: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:27 daydream kernel: ata3: CPB 22: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:27 daydream kernel: ata3: CPB 23: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:28 daydream kernel: ata3: CPB 24: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:28 daydream kernel: ata3: CPB 25: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:28 daydream kernel: ata3: CPB 26: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:28 daydream kernel: ata3: CPB 27: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:28 daydream kernel: ata3: CPB 28: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:32 daydream kernel: ata3: CPB 29: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:32 daydream kernel: ata3: CPB 30: ctl_flags 0x1f, resp_flags 0x1 Mar 14 20:49:32 daydream kernel: ata3: Resetting port Mar 14 20:49:32 daydream kernel: ata3.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen Mar 14 20:49:32 daydream kernel: ata3.00: cmd 61/40:00:0d:35:b0/00:00:04:00:00/4 0 tag 0 cdb 0x0 data 32768 out Mar 14 20:49:33 daydream kernel: res 40/00:00:00:00:00/00:00:00:00:00/0 0 Emask 0x4 (timeout) Mar 14 20:49:33 daydream kernel: ata3: soft resetting port Mar 14 20:49:33 daydream kernel: ata3: SATA link up 1.5 Gbps (SStatus 113 SContr ol 300) Mar 14 20:49:33 daydream kernel: ata3.00: configured for UDMA/133 Mar 14 20:49:33 daydream kernel: ata3: EH complete -- shannon | Meddle not in the affairs of Wizards, for thou art | crunchy, and taste good with ketchup. | -- stolen from Tom Manos' signature file - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message 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