When booting with root filesystem on sata disks under Intel VMD mode, following errors printed in dmesg and no disk is found, nor booting into it:
[ 6.163286] ata1.00: qc timeout (cmd 0xec) [ 6.165630] ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4) [ 6.483649] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 16.659284] ata1.00: qc timeout (cmd 0xec) [ 16.661717] ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4) [ 16.663161] ata1: limiting SATA link speed to 1.5 Gbps [ 16.983890] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310) [ 48.147294] ata1.00: qc timeout (cmd 0xec) [ 48.149737] ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4) [ 48.467889] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
$ lspci ... 10000:e0:17.0 SATA controller: Intel Corporation Device a0d3 (rev 20)
When booting with root filesystem on sata disks under Intel VMD mode, following errors printed in dmesg and no disk is found, nor booting into it:
[ 6.163286] ata1.00: qc timeout (cmd 0xec)
[ 6.165630] ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[ 6.483649] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 16.659284] ata1.00: qc timeout (cmd 0xec)
[ 16.661717] ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[ 16.663161] ata1: limiting SATA link speed to 1.5 Gbps
[ 16.983890] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[ 48.147294] ata1.00: qc timeout (cmd 0xec)
[ 48.149737] ata1.00: failed to IDENTIFY (I/O error, err_mask=0x4)
[ 48.467889] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
$ lspci
...
10000:e0:17.0 SATA controller: Intel Corporation Device a0d3 (rev 20)