https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224573
Bug ID: 224573
Summary: SES device takes and masks SATA disk address
Product: Base System
Version: 11.1-RELEASE
Hardware: arm64
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: aflu...@gmail.com
Created attachment 189084
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=189084&action=edit
dmesg of kernel compiled without ses device.
Starting with 11.1R, the ses0 device uses the bus:target:lun of a disk on DELL
R515 server. The machine has 8 SATA disks that have been configured in a ZFS
pool, but now, one of the disks is not seen due to the ses0 device being
enabled and using the mps address of 1:8:0:
<QUANTUM ULTRIUM 5 3085> at scbus0 target 3 lun 0 (sa0,pass0)
<DELL PV-124T 0085> at scbus0 target 3 lun 1 (ch0,pass1)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 3 lun 0 (pass2,da0)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 4 lun 0 (pass3,da1)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 5 lun 0 (pass4,da2)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 6 lun 0 (pass5,da3)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 7 lun 0 (pass6,da4)
<DP BACKPLANE 1.10> at scbus1 target 8 lun 0 (pass7,ses0)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 9 lun 0 (pass8,da5)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 10 lun 0 (pass9,da6)
<TSSTcorp DVD+-RW TS-L633J D150> at scbus6 target 0 lun 0 (cd0,pass10)
If the kernel is compiled with the ses device removed from the configuration, a
passthrough device created on boot which also masks the disk at 1:8:0:
<QUANTUM ULTRIUM 5 3085> at scbus0 target 3 lun 0 (sa0,pass0)
<DELL PV-124T 0085> at scbus0 target 3 lun 1 (ch0,pass1)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 3 lun 0 (pass2,da0)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 4 lun 0 (pass3,da1)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 5 lun 0 (pass4,da2)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 6 lun 0 (pass5,da3)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 7 lun 0 (pass6,da4)
<DP BACKPLANE 1.10> at scbus1 target 8 lun 0 (pass7)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 9 lun 0 (pass8,da5)
<ATA Hitachi HUA72202 A3HA> at scbus1 target 10 lun 0 (pass9,da6)
<TSSTcorp DVD+-RW TS-L633J D150> at scbus6 target 0 lun 0 (cd0,pass10)
This hardware has used versions 9.0 through 11.0 without this problem.
Dmesg output attached.
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