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From: bugzilla-daemon@bugzilla.kernel.org
To: linux-scsi@vger.kernel.org
Subject: [Bug 204769] New: SCSI devices missing for disks attached to controller
Date: Wed, 04 Sep 2019 15:18:16 +0000	[thread overview]
Message-ID: <bug-204769-11613@https.bugzilla.kernel.org/> (raw)

https://bugzilla.kernel.org/show_bug.cgi?id=204769

            Bug ID: 204769
           Summary: SCSI devices missing for disks attached to controller
           Product: SCSI Drivers
           Version: 2.5
    Kernel Version: 5.12.11
          Hardware: Intel
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: AACRAID
          Assignee: scsi_drivers-aacraid@kernel-bugs.osdl.org
          Reporter: linux@lanrules.de
        Regression: No

We use an Adaptec ASR8405 RAID controller with LSI backplane. The RAID
controller is configured to expose attached disks to the system ("Expose RAW").

Up to Linux 5.1.12, devices would show as expected. lsscsi -v reports:
> [0:0:0:0]    disk    ASR8405  storage          V1.0  /dev/sda
>   dir: /sys/bus/scsi/devices/0:0:0:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:0:0/0:0:0:0]
> [0:1:4:0]    disk    ATA      HGST HUH721212AL T3D0  -
>   dir: /sys/bus/scsi/devices/0:1:4:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:1:4/0:1:4:0]
> [0:1:5:0]    disk    ATA      HGST HUH721212AL T3D0  -
>   dir: /sys/bus/scsi/devices/0:1:5:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:1:5/0:1:5:0]
> [0:1:6:0]    disk    ATA      HGST HUH721212AL T3D0  -
>   dir: /sys/bus/scsi/devices/0:1:6:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:1:6/0:1:6:0]
> [0:1:7:0]    disk    ATA      HGST HUH721212AL T3D0  -
>   dir: /sys/bus/scsi/devices/0:1:7:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:1:7/0:1:7:0]
> [0:1:8:0]    disk    ATA      HGST HUH721212AL T3D0  -
>   dir: /sys/bus/scsi/devices/0:1:8:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:1:8/0:1:8:0]
> [0:1:9:0]    disk    ATA      HGST HUH721212AL T3D0  -
>   dir: /sys/bus/scsi/devices/0:1:9:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:1:9/0:1:9:0]
> [0:1:10:0]   disk    ATA      HGST HUH721212AL T3D0  -
>   dir: /sys/bus/scsi/devices/0:1:10:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:1:10/0:1:10:0]
> [0:1:11:0]   disk    ATA      HGST HUH721212AL T3D0  -
>   dir: /sys/bus/scsi/devices/0:1:11:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:1:11/0:1:11:0]
> [0:1:12:0]   disk    ATA      HGST HUH721212AL T3D0  -
>   dir: /sys/bus/scsi/devices/0:1:12:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:1:12/0:1:12:0]
> [0:1:13:0]   disk    ATA      HGST HUH721212AL T3D0  -
>   dir: /sys/bus/scsi/devices/0:1:13:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:1:13/0:1:13:0]
> [0:3:0:0]    enclosu LSI      SAS3x36          0601  -
>   dir: /sys/bus/scsi/devices/0:3:0:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:3:0/0:3:0:0]
> [N:0:4:1]    dsk/nvm Samsung SSD 970 PRO 1TB__1                 /dev/nvme0n1
>   dir: /sys/class/nvme/nvme0/nvme0n1 
>   [/sys/devices/pci0000:10/0000:10:01.3/0000:13:00.0/nvme/nvme0/nvme0n1]
> [N:1:4:1]    dsk/nvm Samsung SSD 970 PRO 1TB__1                 /dev/nvme1n1
>   dir: /sys/class/nvme/nvme1/nvme1n1 
>   [/sys/devices/pci0000:10/0000:10:01.4/0000:14:00.0/nvme/nvme1/nvme1n1]

On Linux 5.12.11, the devices are missing. lsscsi -v reports:
> [0:0:0:0]    disk    ASR8405  storage          V1.0  /dev/sda
>   dir: /sys/bus/scsi/devices/0:0:0:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:0:0/0:0:0:0]
> [0:3:0:0]    enclosu LSI      SAS3x36          0601  -
>   dir: /sys/bus/scsi/devices/0:3:0:0 
>   [/sys/devices/pci0000:60/0000:60:03.1/0000:61:00.0/host0/target0:3:0/0:3:0:0]
> [N:1:4:1]    dsk/nvm Samsung SSD 970 PRO 1TB__1                 /dev/nvme1n1
>   dir: /sys/class/nvme/nvme0/nvme1n1 
>   [/sys/devices/pci0000:10/0000:10:01.3/0000:13:00.0/nvme/nvme0/nvme1n1]
> [N:0:4:1]    dsk/nvm Samsung SSD 970 PRO 1TB__1                 /dev/nvme0n1
>   dir: /sys/class/nvme/nvme1/nvme0n1 
>   [/sys/devices/pci0000:10/0000:10:01.4/0000:14:00.0/nvme/nvme1/nvme0n1]

Output in dmesg is basically the same, except that the following lines are
missing with the newer kernel:

> [   17.016661] scsi 0:1:4:0: Direct-Access     ATA      HGST HUH721212AL T3D0
> PQ: 1 ANSI: 6
> [   17.018313] scsi 0:1:5:0: Direct-Access     ATA      HGST HUH721212AL T3D0
> PQ: 1 ANSI: 6
> [   17.020129] scsi 0:1:6:0: Direct-Access     ATA      HGST HUH721212AL T3D0
> PQ: 1 ANSI: 6
> [   17.022530] scsi 0:1:7:0: Direct-Access     ATA      HGST HUH721212AL T3D0
> PQ: 1 ANSI: 6
> [   17.024291] scsi 0:1:8:0: Direct-Access     ATA      HGST HUH721212AL T3D0
> PQ: 1 ANSI: 6
> [   17.026041] scsi 0:1:9:0: Direct-Access     ATA      HGST HUH721212AL T3D0
> PQ: 1 ANSI: 6
> [   17.027725] scsi 0:1:10:0: Direct-Access     ATA      HGST HUH721212AL
> T3D0 PQ: 1 ANSI: 6
> [   17.029395] scsi 0:1:11:0: Direct-Access     ATA      HGST HUH721212AL
> T3D0 PQ: 1 ANSI: 6
> [   17.031145] scsi 0:1:12:0: Direct-Access     ATA      HGST HUH721212AL
> T3D0 PQ: 1 ANSI: 6
> [   17.032672] scsi 0:1:13:0: Direct-Access     ATA      HGST HUH721212AL
> T3D0 PQ: 1 ANSI: 6

The only change on the system to obtain the different behavior is
upgrade/downgrade of the kernel via kexec.

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             reply	other threads:[~2019-09-04 15:18 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-04 15:18 bugzilla-daemon [this message]
2019-09-04 15:58 ` [Bug 204769] New: SCSI devices missing for disks attached to controller Laurence Oberman
2019-09-04 15:58 ` [Bug 204769] " bugzilla-daemon
2019-09-05  8:38 ` bugzilla-daemon
2021-04-18  0:22 ` bugzilla-daemon
2023-01-05 13:57 ` bugzilla-daemon
2023-01-05 16:49 ` bugzilla-daemon

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