aic94xx or libsas crash on X7DB3 supermicro with enclosure and sata drives

["Krzysztof Błaszkowski" <kb@sysmikro.com.pl>]

Hello all,

I noticed this according to syslog. furthermore if aic94xx is connected to 
single sata drive only then there is no crash but device is not recognized 
too. (mysterious: "ERROR: Unidentified device type 5").

A crash recorded in syslog:

aic94xx: Adaptec aic94xx SAS/SATA driver version 1.0.3 loaded
ACPI: PCI Interrupt 0000:04:02.0[A] -> GSI 16 (level, low) -> IRQ 16
aic94xx: found Adaptec AIC-9410W SAS/SATA Host Adapter, device 0000:04:02.0
scsi6 : aic94xx
PM: Adding info for No Bus:host6
PM: Adding info for No Bus:0000:04:02.0
PM: Removing info for No Bus:0000:04:02.0
aic94xx: Found sequencer Firmware version 1.1 (V30)
aic94xx: device 0000:04:02.0: SAS addr 500304800004ce20, PCBA SN ORG, 8 phys, 
8 enabled phys, flash present, BIOS build 1822
PM: Adding info for No Bus:phy-6:0

<snip>

BUG: unable to handle kernel NULL pointer dereference at virtual address 
00000074
 printing eip:
f8e2daf9
*pde = 00000000
Oops: 0000 [#1]
SMP 
Modules linked in: aic94xx firmware_class libsas scsi_transport_sas nfsd 
exportfs nvram speedstep_lib freq_table thermal processor fan button battery 
edd ac ipv6 evdev joydev sr_mod ide_cd cdrom e1000 ehci_hcd i2c_i801 uhci_hcd 
rng_core dm_mod usbcore
CPU:    0
EIP:    0060:[<f8e2daf9>]    Not tainted VLI
EFLAGS: 00010286   (2.6.22.8 #6)
EIP is at sas_rphy_add+0x9/0x100 [scsi_transport_sas]
eax: 00000000   ebx: 00000000   ecx: 00000004   edx: 00000282
esi: f2d8c080   edi: 00000000   ebp: f2d8c080   esp: f33bbe84
ds: 007b   es: 007b   fs: 00d8  gs: 0000  ss: 0068
Process scsi_wq_6 (pid: 8265, ti=f33ba000 task=f5712a90 task.ti=f33ba000)
Stack: f2d8c080 00000000 00000000 f2d8c080 f2d8c0d7 f2d8c080 f8e8bdc2 f46b49e0 
       f2d8c114 f8e8d040 f7c4446c f704e724 f704e6c0 00000000 00000001 00000000 
       f46b49fc f8e8d741 f7c44438 00000000 f33bbedc 402e9267 f7c44380 ffffffed 
Call Trace:
 [<f8e8bdc2>] sas_discover_sata+0x42/0x80 [libsas]
 [<f8e8d040>] sas_ex_discover_end_dev+0x120/0x2d0 [libsas]
 [<f8e8d741>] sas_ex_discover_dev+0x2d1/0x470 [libsas]
 [<402e9267>] attribute_container_device_trigger+0xa7/0xb0
 [<f8e8daa3>] sas_ex_discover_devices+0x83/0xb0 [libsas]
 [<f8e8e6d3>] sas_ex_level_discovery+0x43/0x70 [libsas]
 [<f8e8e71b>] sas_ex_bfs_disc+0x1b/0x30 [libsas]
 [<f8e8e76e>] sas_discover_root_expander+0x3e/0x80 [libsas]
 [<f8e8bf40>] sas_discover_domain+0x0/0xc0 [libsas]
 [<f8e8bfea>] sas_discover_domain+0xaa/0xc0 [libsas]
 [<40131541>] run_workqueue+0x71/0x100
 [<4013167c>] worker_thread+0xac/0x110
 [<401352a0>] autoremove_wake_function+0x0/0x50
 [<401352a0>] autoremove_wake_function+0x0/0x50
 [<401315d0>] worker_thread+0x0/0x110
 [<40134d24>] kthread+0x64/0xa0
 [<40134cc0>] kthread+0x0/0xa0
 [<401048b7>] kernel_thread_helper+0x7/0x10
 =======================
Code: f0 83 c4 1c 5b 5e 5f 5d c3 0f 0b 8d b4 26 00 00 00 00 eb fe 8d b4 26 00 
00 00 00 8d bc 27 00 00 00 00 55 57 89 c7 56 53 83 ec 08 <8b> 70 74 8b 5e 74 
eb 0b 8b 43 74 31 d2 85 c0 74 13 89 c3 89 d8 
EIP: [<f8e2daf9>] sas_rphy_add+0x9/0x100 [scsi_transport_sas] SS:ESP 
0068:f33bbe84


let me know if you need any more information. i used latest firmware available 
from Adaptec's site.

Best regards,
Krzysztof Blaszkowski

Systemy mikroprocesorowe
Storrady 1
PL71602 Szczecin, Poland
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