After activating the MSI support by adding sata_sil24.msi=1 to the kernel command line, the first write to a drive attached to the SiI 3132 controller results in the following errors: [ 138.950074] ata2.00: exception Emask 0x0 SAct 0xf SErr 0x0 action 0x6 frozen [ 138.961023] ata2.00: failed command: WRITE FPDMA QUEUED [ 138.970034] ata2.00: cmd 61/00:00:a5:95:4a/04:00:01:00:00/40 tag 0 ncq 524288 out [ 138.970037] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 138.992467] ata2.00: status: { DRDY } [ 138.999864] ata2.00: failed command: WRITE FPDMA QUEUED [ 139.008830] ata2.00: cmd 61/00:08:a5:91:4a/04:00:01:00:00/40 tag 1 ncq 524288 out [ 139.008833] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 139.031370] ata2.00: status: { DRDY } [ 139.038906] ata2.00: failed command: WRITE FPDMA QUEUED [ 139.048055] ata2.00: cmd 61/00:10:a5:8d:4a/04:00:01:00:00/40 tag 2 ncq 524288 out [ 139.048058] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 139.070828] ata2.00: status: { DRDY } [ 139.078383] ata2.00: failed command: WRITE FPDMA QUEUED [ 139.087506] ata2.00: cmd 61/00:18:a5:99:4a/04:00:01:00:00/40 tag 3 ncq 524288 out [ 139.087509] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 139.110281] ata2.00: status: { DRDY } [ 139.117877] ata2: hard resetting link [ 141.310057] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 0) [ 146.310037] ata2.00: qc timeout (cmd 0xec) [ 146.318032] ata2.00: failed to IDENTIFY (I/O error, err_mask=0x5) [ 146.328027] ata2.00: revalidation failed (errno=-5) [ 146.336815] ata2: hard resetting link [ 148.530055] ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 0) [ 158.530035] ata2.00: qc timeout (cmd 0xec) [ 158.538066] ata2.00: failed to IDENTIFY (I/O error, err_mask=0x5) [ 158.548122] ata2.00: revalidation failed (errno=-5) [ 158.556955] ata2: limiting SATA link speed to 1.5 Gbps [ 158.566052] ata2: hard resetting link [ 160.760071] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 10) [ 190.760046] ata2.00: qc timeout (cmd 0xec) [ 190.768137] ata2.00: failed to IDENTIFY (I/O error, err_mask=0x5) [ 190.778219] ata2.00: revalidation failed (errno=-5) [ 190.787085] ata2.00: disabled [ 190.794002] ata2.00: device reported invalid CHS sector 0 [ 190.803368] ata2.00: device reported invalid CHS sector 0 [ 190.812704] ata2.00: device reported invalid CHS sector 0 [ 190.821965] ata2.00: device reported invalid CHS sector 0 [ 190.831231] ata2: hard resetting link [ 193.030050] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 10) [ 193.030073] ata2: EH complete [ 193.030112] sd 1:0:0:0: [sdb] Unhandled error code [ 193.030120] sd 1:0:0:0: [sdb] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK [ 193.030127] sd 1:0:0:0: [sdb] CDB: Write(10): 2a 00 01 4a 99 a5 00 04 00 00 [ 193.030141] end_request: I/O error, dev sdb, sector 21666213 [ 193.039854] sd 1:0:0:0: [sdb] Unhandled error code [ 193.039857] sd 1:0:0:0: [sdb] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK [ 193.039862] sd 1:0:0:0: [sdb] CDB: Write(10): 2a 00 01 4a 8d a5 00 04 00 00 [ 193.039874] end_request: I/O error, dev sdb, sector 21663141 [ 193.040083] sd 1:0:0:0: [sdb] Unhandled error code This repeats for a large number of times, then the XFS filesystem gets shut down. More information about my system are in my first report: http://lkml.org/lkml/2009/12/19/82 lspci -vv for both the normal, working and the broken MSI case are in my second try to report this: http://lkml.org/lkml/2009/12/25/12 Please ask, if you need more information. Torsten -- 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