RE: aacraid driver, kernel 4.14 and up, ASR8xxx controller : doesn't work

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> I have already set up many drives of this size previously, using
> ASR8xx5 controllers, without any problem.
> 
> On another machine with a simple 8x1TB array, it doesn't work any better, while
> an older kernel works perfectly fine too:
> 
> 4.14.48 :
> 
> [   61.069190] Adaptec aacraid driver 1.2.1[50834]-custom
> [   61.069527] aacraid 0000:21:00.0: SME is active, device will require DMA
> bounce buffers
> [   61.076949] SME is active and system is using DMA bounce buffers
> [   61.076954] aacraid: Comm Interface type2 enabled
> 

Both controllers are capable of 64-bit DMA, however the communication area should be 32-bit.
Is this issue specific to Secure Memory Encryption? Does it occur without that enabled?

> 
> Nothing else happens for minutes. Attached devices are unavailable.
> "arcconf" find no controller. "rmmod aacraid" doesn't work (device in use).
> 
> Running kernel 4.16.14 with the 8 TB array is exactly the same:

Thanks for that info ... I won't have to find a lot of drives.

> 
> [   40.380488] Adaptec aacraid driver 1.2.1[50877]-custom
> [   40.380871] aacraid 0000:21:00.0: SME is active, device will require DMA
> bounce buffers
> [   40.388991] SME is active and system is using DMA bounce buffers
> [   40.388995] aacraid: Comm Interface type2 enabled
> 
> In contrast, kernel 4.13, though the driver version is the same as 4.14, just
> works:
> 
> [   25.286437] Adaptec aacraid driver 1.2.1[50834]-custom
> [   25.293694] aacraid: Comm Interface type2 enabled
> [   25.300799] AAC0: kernel 7.13-0[33263] Mar 16 2018
> [   25.300801] AAC0: monitor 7.13-0[33263]
> [   25.300802] AAC0: bios 7.13-0[33263]
> [   25.300804] AAC0: serial 6A46639462D
> [   25.300804] AAC0: Non-DASD support enabled.
> [   25.300805] AAC0: 64bit support enabled.
> [   25.300807] aacraid 0000:21:00.0: 64 Bit DAC enabled
> ...
> [   27.307013] scsi host16: aacraid
> [   27.307228] scsi 16:0:0:0: Direct-Access     ASR8805  LogicalDrv 0     V1.0 PQ: 0
> ANSI: 2
> [   27.307364] sd 16:0:0:0: [sdm] Very big device. Trying to use READ
> CAPACITY(16).
> [   27.307376] sd 16:0:0:0: [sdm] 11714670592 512-byte logical blocks: (6.00
> TB/5.45 TiB)
> [   27.307385] sd 16:0:0:0: [sdm] Write Protect is off
> [   27.307386] sd 16:0:0:0: [sdm] Mode Sense: 12 00 10 08
> [   27.307403] sd 16:0:0:0: [sdm] Write cache: disabled, read cache: enabled,
> supports DPO and FUA
> [   27.307411] sd 16:0:0:0: Attached scsi generic sg12 type 0
> [   27.307507] sd 16:0:0:0: [sdm] Very big device. Trying to use READ
> CAPACITY(16).
> [   27.307830] sd 16:0:0:0: [sdm] Very big device. Trying to use READ
> CAPACITY(16).
> [   27.307855] sd 16:0:0:0: [sdm] Attached SCSI removable disk
> [   27.332731] scsi 16:1:0:0: Direct-Access     ATA      WDC WD10TPVT-00U 1A01
> PQ: 1 ANSI: 6
> [   27.355431] scsi 16:1:0:0: Attached scsi generic sg13 type 0
> [   27.355830] scsi 16:1:1:0: Direct-Access     ATA      WDC WD10TPVT-00U 1A01
> PQ: 1 ANSI: 6
> [   27.385377] scsi 16:1:1:0: Attached scsi generic sg14 type 0
> [   27.385788] scsi 16:1:2:0: Direct-Access     ATA      WDC WD10TPVT-00U 1A01
> PQ: 1 ANSI: 6
> [   27.413412] scsi 16:1:2:0: Attached scsi generic sg15 type 0
> [   27.413813] scsi 16:1:3:0: Direct-Access     ATA      WDC WD10TPVT-00U 1A01
> PQ: 1 ANSI: 6
> [   27.437420] scsi 16:1:3:0: Attached scsi generic sg16 type 0
> [   27.437836] scsi 16:1:4:0: Direct-Access     ATA      WDC WD10TPVT-00H 1A01
> PQ: 1 ANSI: 6
> [   27.636675] scsi 16:1:4:0: Attached scsi generic sg17 type 0
> [   27.637077] scsi 16:1:5:0: Direct-Access     ATA      WDC WD10TPVT-00U 1A01
> PQ: 1 ANSI: 6
> [   27.664591] scsi 16:1:5:0: Attached scsi generic sg18 type 0
> [   27.664996] scsi 16:1:6:0: Direct-Access     ATA      WDC WD10TPVT-00U 1A01
> PQ: 1 ANSI: 6
> [   27.697619] scsi 16:1:6:0: Attached scsi generic sg19 type 0
> [   27.698027] scsi 16:1:7:0: Direct-Access     ATA      WDC WD10TPVT-00U 1A01
> PQ: 1 ANSI: 6
> [   27.732645] scsi 16:1:7:0: Attached scsi generic sg20 type 0
> 

Thanks for the additional info ... -Dave




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