Wow, I forgot how long it takes to compile a full kernel. Glad I ran Gentoo for a few years and knew how to compile and apply patches. I will admit I had to dust off some mental cobwebs. Pre-patched 4.0.0 kernel tree: Oops, as expected Patched 4.0.0 kernel tree: IT WORKED!!!!! Basic mount, and checking a few files all looks good. I will start a RAID check as that should really push the driver. I will report back tomorrow when it finishes. Logs below. [ 5.072154] scsi host4: mvsas [ 5.180706] floppy0: no floppy controllers found [ 5.339613] ata12.00: ATA-8: ST32000542AS, CC35, max UDMA/133 [ 5.339616] ata10.00: ATA-7: HDS725050KLA360, K2AOAD1A, max UDMA/133 [ 5.339624] ata10.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32) [ 5.339892] ata11.00: ATA-7: HDS725050KLA360, K2AOAD1A, max UDMA/133 [ 5.339893] ata11.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32) [ 5.340146] ata13.00: ATA-8: ST2000DL003-9VT166, CC32, max UDMA/133 [ 5.340147] ata13.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 31/32) [ 5.341015] ata10.00: configured for UDMA/133 [ 5.341344] ata11.00: configured for UDMA/133 [ 5.341406] ata13.00: configured for UDMA/133 [ 5.373207] ata5.00: ATA-8: WDC WD20EADS-11R6B1, 80.00A80, max UDMA/133 [ 5.373208] ata5.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 31/32) [ 5.374223] ata8.00: ATA-8: WDC WD20EADS-42R6B0, 02.00A02, max UDMA/133 [ 5.374224] ata8.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 31/32) [ 5.379766] ata5.00: configured for UDMA/133 [ 5.380106] ata8.00: configured for UDMA/133 [ 5.397396] ata7.00: ATA-8: WDC WD20EARS-00S8B1, 80.00A80, max UDMA/133 [ 5.397396] ata7.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 31/32) [ 5.403539] ata7.00: configured for UDMA/133 [ 5.451846] ata12.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 31/32) [ 5.460457] ata12.00: configured for UDMA/133 [ 5.738535] ata6.00: ATA-8: WDC WD20EADS-11R6B1, 80.00A80, max UDMA/133 [ 5.745214] ata6.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 31/32) [ 5.745267] ata9.00: ATA-8: WDC WD20EADS-42R6B0, 02.00A02, max UDMA/133 [ 5.745268] ata9.00: 3907029168 sectors, multi 0: LBA48 NCQ (depth 31/32) [ 5.765626] ata9.00: configured for UDMA/133 [ 5.771347] ata6.00: configured for UDMA/133 [ 5.784708] scsi 4:0:0:0: Direct-Access ATA WDC WD20EADS-11R 0A80 PQ: 0 ANSI: 5 [ 5.793137] scsi 4:0:1:0: Direct-Access ATA WDC WD20EADS-11R 0A80 PQ: 0 ANSI: 5 [ 5.801560] scsi 4:0:2:0: Direct-Access ATA WDC WD20EARS-00S 0A80 PQ: 0 ANSI: 5 [ 5.809982] scsi 4:0:3:0: Direct-Access ATA WDC WD20EADS-42R 0A02 PQ: 0 ANSI: 5 [ 5.818404] scsi 4:0:4:0: Direct-Access ATA WDC WD20EADS-42R 0A02 PQ: 0 ANSI: 5 [ 5.826816] scsi 4:0:5:0: Direct-Access ATA HDS725050KLA360 AD1A PQ: 0 ANSI: 5 [ 5.835171] scsi 4:0:6:0: Direct-Access ATA HDS725050KLA360 AD1A PQ: 0 ANSI: 5 [ 5.843526] scsi 4:0:7:0: Direct-Access ATA ST32000542AS CC35 PQ: 0 ANSI: 5 [ 5.851928] scsi 4:0:8:0: Direct-Access ATA ST2000DL003-9VT1 CC32 PQ: 0 ANSI: 5 [ 5.862669] scsi 4:0:9:0: Enclosure LSILOGIC SASX28 A.1 7014 PQ: 0 ANSI: 3 [ 6.140482] scsi 5:0:0:0: Direct-Access Generic USB EDC 1.00 PQ: 0 ANSI: 2 [ 6.148955] sd 5:0:0:0: Attached scsi generic sg2 type 0 [ 6.149610] sd 5:0:0:0: [sdc] 2007040 512-byte logical blocks: (1.02 GB/980 MiB) [ 6.150218] sd 5:0:0:0: [sdc] Write Protect is off [ 6.150840] sd 5:0:0:0: [sdc] No Caching mode page found [ 6.150841] sd 5:0:0:0: [sdc] Assuming drive cache: write through [ 6.153552] sdc: sdc1 [ 6.156225] sd 5:0:0:0: [sdc] Attached SCSI disk [ 6.185605] sd 4:0:0:0: [sdd] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) [ 6.185633] sd 4:0:0:0: Attached scsi generic sg3 type 0 [ 6.185799] sd 4:0:1:0: Attached scsi generic sg4 type 0 [ 6.185801] sd 4:0:1:0: [sde] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) [ 6.185802] sd 4:0:1:0: [sde] 4096-byte physical blocks [ 6.185837] sd 4:0:1:0: [sde] Write Protect is off [ 6.185848] sd 4:0:1:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 6.185978] sd 4:0:2:0: [sdf] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) [ 6.185986] sd 4:0:2:0: Attached scsi generic sg5 type 0 [ 6.186059] sd 4:0:2:0: [sdf] Write Protect is off [ 6.186148] sd 4:0:3:0: [sdg] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) [ 6.186149] sd 4:0:2:0: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 6.186163] sd 4:0:3:0: Attached scsi generic sg6 type 0 [ 6.186188] sde: sde1 [ 6.186205] sd 4:0:3:0: [sdg] Write Protect is off [ 6.186234] sd 4:0:3:0: [sdg] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 6.186395] sd 4:0:4:0: [sdh] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) [ 6.186417] sd 4:0:1:0: [sde] Attached SCSI disk [ 6.186439] sd 4:0:4:0: [sdh] Write Protect is off [ 6.186441] sd 4:0:4:0: Attached scsi generic sg7 type 0 [ 6.186461] sd 4:0:4:0: [sdh] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 6.186628] sd 4:0:5:0: [sdi] 976773168 512-byte logical blocks: (500 GB/465 GiB) [ 6.186670] sd 4:0:5:0: Attached scsi generic sg8 type 0 [ 6.186685] sdf: sdf1 [ 6.186696] sdg: sdg1 [ 6.186726] sd 4:0:5:0: [sdi] Write Protect is off [ 6.186877] sdh: sdh1 [ 6.186882] sd 4:0:6:0: [sdj] 976773168 512-byte logical blocks: (500 GB/465 GiB) [ 6.186905] sd 4:0:2:0: [sdf] Attached SCSI disk [ 6.186911] sd 4:0:6:0: Attached scsi generic sg9 type 0 [ 6.186925] sd 4:0:5:0: [sdi] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 6.186945] sd 4:0:3:0: [sdg] Attached SCSI disk [ 6.186948] sd 4:0:6:0: [sdj] Write Protect is off [ 6.186977] sd 4:0:6:0: [sdj] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 6.187142] sd 4:0:4:0: [sdh] Attached SCSI disk [ 6.187171] sd 4:0:7:0: [sdk] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) [ 6.187198] sd 4:0:7:0: Attached scsi generic sg10 type 0 [ 6.187240] sd 4:0:7:0: [sdk] Write Protect is off [ 6.187266] sd 4:0:7:0: [sdk] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 6.187355] sd 4:0:8:0: [sdl] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB) [ 6.187377] sd 4:0:8:0: [sdl] Write Protect is off [ 6.187394] sd 4:0:8:0: [sdl] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 6.187400] sd 4:0:8:0: Attached scsi generic sg11 type 0 [ 6.187589] scsi 4:0:9:0: Attached scsi generic sg12 type 13 [ 6.200457] sdl: sdl1 [ 6.200601] sd 4:0:8:0: [sdl] Attached SCSI disk [ 6.202898] sdi: sdi1 [ 6.203316] sd 4:0:5:0: [sdi] Attached SCSI disk [ 6.203662] random: nonblocking pool is initialized [ 6.203687] sdj: sdj1 [ 6.204047] sd 4:0:6:0: [sdj] Attached SCSI disk [ 6.207504] sdk: sdk1 [ 6.207764] sd 4:0:7:0: [sdk] Attached SCSI disk [ 6.488728] sd 4:0:0:0: [sdd] 4096-byte physical blocks [ 6.494046] sd 4:0:0:0: [sdd] Write Protect is off [ 6.498906] sd 4:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 6.508482] sdd: sdd1 [ 6.511045] sd 4:0:0:0: [sdd] Attached SCSI disk [ 6.654475] md: bind<sdl1> [ 6.668281] md: bind<sdh1> [ 6.672779] md: bind<sdd1> [ 6.677573] md: bind<sdj1> [ 6.681852] md: bind<sdi1> [ 6.685906] md/raid1:md125: active with 2 out of 2 mirrors [ 6.686221] md: bind<sde1> [ 6.694288] md125: detected capacity change from 0 to 499972440064 [ 6.697903] md: bind<sdk1> [ 6.707702] md: bind<sdg1> [ 6.789676] md: bind<sdf1> [ 6.864048] raid6: sse2x1 7299 MB/s [ 6.932065] raid6: sse2x2 8507 MB/s [ 7.000052] raid6: sse2x4 9334 MB/s [ 7.003883] raid6: using algorithm sse2x4 (9334 MB/s) [ 7.009030] raid6: using ssse3x2 recovery algorithm [ 7.016950] xor: measuring software checksum speed [ 7.060033] prefetch64-sse: 12476.000 MB/sec [ 7.104097] generic_sse: 11050.000 MB/sec [ 7.108414] xor: using function: prefetch64-sse (12476.000 MB/sec) [ 7.115066] async_tx: api initialized (async) [ 7.120852] md: raid6 personality registered for level 6 [ 7.126224] md: raid5 personality registered for level 5 [ 7.131583] md: raid4 personality registered for level 4 [ 7.137118] md/raid:md126: device sdf1 operational as raid disk 2 [ 7.143266] md/raid:md126: device sdg1 operational as raid disk 3 [ 7.149407] md/raid:md126: device sdk1 operational as raid disk 6 [ 7.155550] md/raid:md126: device sde1 operational as raid disk 1 [ 7.161693] md/raid:md126: device sdd1 operational as raid disk 0 [ 7.167836] md/raid:md126: device sdh1 operational as raid disk 4 [ 7.173979] md/raid:md126: device sdl1 operational as raid disk 5 [ 7.180538] md/raid:md126: allocated 0kB [ 7.184619] md/raid:md126: raid level 6 active with 7 out of 7 devices, algorithm 2 On Wed, Apr 15, 2015 at 10:16 PM, James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote: > On Tue, 2015-04-14 at 14:41 -0700, Adam Talbot wrote: >> Removing the sas expander and attaching the SATA drives directly works >> just fine. I had to limp along with the drives direct attached for a >> while, while debugging. > > Well, that narrows it down. It looks like there's a longstanding bug in > mvs_task_prep_ata() where the physical PHY field is populated by taking > an index through the HBA phy table. This field is ignored for STP but > the phy table is too small and it uses the expander phy number to index > it (hence the GPF as we fall off the end of the phy table trying to > dereference sas_phy->id). > > This should fix the problem. > > James > > --- > > diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c > index 2d5ab6d..454536c 100644 > --- a/drivers/scsi/mvsas/mv_sas.c > +++ b/drivers/scsi/mvsas/mv_sas.c > @@ -441,14 +441,11 @@ static u32 mvs_get_ncq_tag(struct sas_task *task, u32 *tag) > static int mvs_task_prep_ata(struct mvs_info *mvi, > struct mvs_task_exec_info *tei) > { > - struct sas_ha_struct *sha = mvi->sas; > struct sas_task *task = tei->task; > struct domain_device *dev = task->dev; > struct mvs_device *mvi_dev = dev->lldd_dev; > struct mvs_cmd_hdr *hdr = tei->hdr; > struct asd_sas_port *sas_port = dev->port; > - struct sas_phy *sphy = dev->phy; > - struct asd_sas_phy *sas_phy = sha->sas_phy[sphy->number]; > struct mvs_slot_info *slot; > void *buf_prd; > u32 tag = tei->tag, hdr_tag; > @@ -468,7 +465,7 @@ static int mvs_task_prep_ata(struct mvs_info *mvi, > slot->tx = mvi->tx_prod; > del_q = TXQ_MODE_I | tag | > (TXQ_CMD_STP << TXQ_CMD_SHIFT) | > - (MVS_PHY_ID << TXQ_PHY_SHIFT) | > + ((sas_port->phy_mask & TXQ_PHY_MASK) << TXQ_PHY_SHIFT) | > (mvi_dev->taskfileset << TXQ_SRS_SHIFT); > mvi->tx[mvi->tx_prod] = cpu_to_le32(del_q); > > > > > -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html