Mark Haverkamp wrote: > I got this panic when loading the aic94xx module. The adapter is > connected to an HP MSA50 SAS enclosure with 3 72GB SAS disks. > > Kernel 2.6.19-rc6-scsi-misc on an x86_64 > > --- > > > aic94xx: Adaptec aic94xx SAS/SATA driver version 1.0.2 loaded > aic94xx: found Adaptec AIC-9410W SAS/SATA Host Adapter, device 0000:08:01.0 > aic94xx: BIOS present (1,2), 1673 > aic94xx: ue num:3, ue size:88 > aic94xx: manuf sect SAS_ADDR 50000d100045af00 <snip> > sas: phy1 matched wide port0 > sas: phy1 added to port0, phy_mask:0x3 > sas: phy2 matched wide port0 > sas: phy2 added to port0, phy_mask:0x7 > sas: phy3 matched wide port0 > sas: phy3 added to port0, phy_mask:0xf > sas: DOING DISCOVERY on port 0, pid:3524 > sas: ex 500508b300a27a2f phy00:T attached: 500508b300a27a3f > sas: ex 500508b300a27a2f phy01:T attached: 500508b300a27a3f > sas: ex 500508b300a27a2f phy02:T attached: 0000000000000000 > sas: ex 500508b300a27a2f phy03:T attached: 0000000000000000 > sas: ex 500508b300a27a2f phy04:S attached: 50000d100045af00 > sas: ex 500508b300a27a2f phy05:S attached: 50000d100045af00 > sas: ex 500508b300a27a2f phy06:S attached: 50000d100045af00 > sas: ex 500508b300a27a2f phy07:S attached: 50000d100045af00 > sas: ex 500508b300a27a2f phy08:T attached: 0000000000000000 > sas: ex 500508b300a27a2f phy09:T attached: 0000000000000000 > sas: ex 500508b300a27a2f phy10:T attached: 0000000000000000 > sas: ex 500508b300a27a2f phy11:T attached: 0000000000000000 > sas: ex 500508b300a27a2f phy12:D attached: 500508b300a27a2c > sas: ex 500508b300a27a3f phy00:D attached: 5000c5000095f8b5 > sas: ex 500508b300a27a3f phy01:D attached: 0000000000000000 > sas: ex 500508b300a27a3f phy02:D attached: 5000c5000095d3b5 > sas: ex 500508b300a27a3f phy03:D attached: 0000000000000000 > sas: ex 500508b300a27a3f phy04:D attached: 5000c5000095c0b9 > sas: ex 500508b300a27a3f phy05:D attached: 0000000000000000 > sas: ex 500508b300a27a3f phy06:D attached: 0000000000000000 > sas: ex 500508b300a27a3f phy07:D attached: 0000000000000000 > sas: ex 500508b300a27a3f phy08:D attached: 0000000000000000 > sas: ex 500508b300a27a3f phy09:D attached: 0000000000000000 > sas: ex 500508b300a27a3f phy10:S attached: 500508b300a27a2f > sas: ex 500508b300a27a3f phy11:S attached: 500508b300a27a2f > sas: task finished with resp:0x0, stat:0x89 > sas: sas_discover_sata() for device 500508b300a27a2c at 500508b300a27a2f:0xc returned 0xffffff06 > kobject_add failed for port-2:0:12 with -EEXIST, don't try to register things with the same name in the same directory. So this is an interesting expander setup within the enclosure. There are two expanders (500508b300a27a2f + 500508b300a27a3f) interconnected via a two wide link (0,1 <-> 10,11 (T-S)) with a four wide link back to the 94xx HBA (4,5,6,7 <-> 0,1,2,3). My guess is that 500508b300a27a2f:12 is virtual and contains a SES target. That leaves SAS disks on 500508b300a27a3f:0, 500508b300a27a3f,2 and 500508b300a27a3f,4 The pain starts immediately after the sas transport layer tries to process those expander SMP DISCOVER responses. The trace seems to suggest the device at 500508b300a27a2f:12 is SATA: extremely unlikely. Mark, do you have a LSI MPT Fusion SAS HBA handy? If so you might connect the enclosure to it, get smp_utils and do something like: # modprobe mptctl # smp_discover -p 12 -s 0x500508b300a27a2f /dev/mptctl and post the output. BTW Darrick, SATA disks connected to an expander usually get SAS addresses like <expander_sas_address + n> where "n" is small. The device attached to 500508b300a27a2f:12 is in that region: 500508b300a27a2c Doug Gilbert - 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
