[Avila] showvolt/showtemp crashes on new BSP

Mon Apr 21 18:14:54 EDT 2008

I have a 2348-4 with the original processor (older stepping).  I flashed 
it to the new redboot and I am using the new BSP (0.7.1).  If more than 
one process is looking at the voltage or temperature at the same time, 
it crashes with the messages below on the console.

If I use the same image on a new processor (newer stepping), things work 
fine.

Is flashing the older boards with the new redboot and using the new BSP 
something that is not supported?

Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c2f74000
[00000000] *pgd=02913031, *pte=00000000, *ppte=00000000
Internal error: Oops: 817 [#1]
Modules linked in: ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 
nf_conntrack ip_tables x_tables wlan_scan_sta ath_rate_sample ath_pci 
ath_hal(P) wlan_wep wlan ixp
400_eth ixp400(P)
CPU: 0
PC is at add_wait_queue_exclusive+0x34/0x44
LR is at __down+0x58/0x10c
pc : [<c004cf14>]    lr : [<c0212ea8>]    Tainted: P
sp : c2931e84  ip : 40000013  fp : c2931e90
r10: bee3eafb  r9 : c02b06f0  r8 : c3cfa5a8
r7 : c2f9fce0  r6 : c3cfa5a0  r5 : c2931e94  r4 : 00000002
r3 : c2931ea0  r2 : 00000000  r1 : c2931e94  r0 : c3cfa5a8
Flags: nZcv  IRQs off  FIQs on  Mode SVC_32  Segment user
Control: 39FF
Table: 02F74000  DAC: 00000015
Process showvolt (pid: 1385, stack limit = 0xc2930250)
Stack: (0xc2931e84 to 0xc2932000)
1e80:          c2931ec8 c2931e94 c0212ea8 c004ceec 00000001 c2f9fce0 
c0035db0
1ea0: c3cfa5a8 00000000 c3cfa400 c3cfa400 c3cfa5a0 c3d3e350 c3cfa47c 
c2931f00
1ec0: c2931ecc c0212dec c0212e5c c3cfa414 00000004 c28f3000 00000004 
c3cfa400
1ee0: c018613c c3cfa414 c28f3000 00000005 c3d3e350 c2931f18 c2931f04 
c0186320
1f00: c018610c c34267e0 00000000 c2931f28 c2931f1c c015248c c0186304 
c2931f60
1f20: c2931f2c c00af204 c0152470 c2931f80 c02ade1c c34267fc c2f723a0 
bee3eafb
1f40: c2931f80 00000003 c0024bc4 c2930000 000084c8 c2931f7c c2931f64 
c0078a78
1f60: c00af144 00000000 00000000 c2f723a0 c2931fa4 c2931f80 c0078e44 
c00789d8
1f80: 00000000 00000000 00000000 bee3ec70 bee3eb20 00008584 00000000 
c2931fa8
1fa0: c0024a20 c0078e04 bee3ec70 bee3eb20 00000003 bee3eafb 00000005 
bee3eafb
1fc0: bee3ec70 bee3eb20 00008584 40070ea8 bee3eba4 00000001 000084c8 
bee3eb1c
1fe0: 4002af88 bee3eae8 0000871c 4002af90 20000010 00000003 00000000 
00000000
Backtrace:
[<c004cee0>] (add_wait_queue_exclusive+0x0/0x44) from [<c0212ea8>] 
(__down+0x58/0x10c)
[<c0212e50>] (__down+0x0/0x10c) from [<c0212dec>] (__down_failed+0xc/0x20)
  r8 = C3CFA47C  r7 = C3D3E350  r6 = C3CFA5A0  r5 = C3CFA400
  r4 = C3CFA400
[<c0186100>] (ad7418_update_device+0x0/0xfc) from [<c0186320>] 
(adc_volt+0x28/0x5c)
  r7 = C3D3E350  r6 = 00000005  r5 = C28F3000  r4 = C3CFA414
[<c01862f8>] (adc_volt+0x0/0x5c) from [<c015248c>] (dev_attr_show+0x28/0x2c)
  r5 = 00000000  r4 = C34267E0
[<c0152464>] (dev_attr_show+0x0/0x2c) from [<c00af204>] 
(sysfs_read_file+0xcc/0x1d0)
[<c00af138>] (sysfs_read_file+0x0/0x1d0) from [<c0078a78>] 
(vfs_read+0xac/0xd4)
[<c00789cc>] (vfs_read+0x0/0xd4) from [<c0078e44>] (sys_read+0x4c/0x80)
  r6 = C2F723A0  r5 = 00000000  r4 = 00000000
[<c0078df8>] (sys_read+0x0/0x80) from [<c0024a20>] 
(ret_fast_syscall+0x0/0x2c)
  r6 = 00008584  r5 = BEE3EB20  r4 = BEE3EC70
Code: e5902004 e281300c e581000c e5803004 (e5823000)

Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c28e0000
[00000000] *pgd=028d8031, *pte=00000000, *ppte=00000000
Internal error: Oops: 0 [#2]
Modules linked in: ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 
nf_conntrack ip_tables x_tables wlan_scan_sta ath_rate_sample ath_pci 
ath_hal(P) wlan_wep wlan ixp
400_eth ixp400(P)
CPU: 0
PC is at __init_begin+0x3fff8000/0x30
LR is at __wake_up_common+0x38/0x74
pc : [<00000000>]    lr : [<c0034b54>]    Tainted: P
sp : c290be78  ip : c3cfa5a4  fp : c290bea0
r10: 00000003  r9 : 00000000  r8 : 00000000
r7 : c3cfa5a8  r6 : 00000000  r5 : c3cfa5a4  r4 : 00000001
r3 : 00000000  r2 : 00000000  r1 : 00000003  r0 : c3cfa598
Flags: Nzcv  IRQs off  FIQs on  Mode SVC_32  Segment user
Control: 39FF
Table: 028E0000  DAC: 00000015
Process showvolt (pid: 1392, stack limit = 0xc290a250)
Stack: (0xc290be78 to 0xc290c000)
be60:                                                       60000013 
c3cfa400
be80: c3cfa5a0 c02a65b8 c3cfa47c c02b06f0 beb4eafb c290beb8 c290bea4 
c0034bbc
bea0: c0034b28 00000000 c3cfa400 c290bec8 c290bebc c002680c c0034b9c 
c290bf00
bec0: c290becc c0212e4c c00267f8 00000341 00000003 000004d9 00000001 
c3cfa400
bee0: c01861e8 c3cfa414 c2934000 00000005 c3d3e350 c290bf18 c290bf04 
c0186320
bf00: c018610c c3426ce0 00000000 c290bf28 c290bf1c c015248c c0186304 
c290bf60
bf20: c290bf2c c00af204 c0152470 c290bf80 c02ade1c c3426cfc c2fb04c0 
beb4eafb
bf40: c290bf80 00000003 c0024bc4 c290a000 000084c8 c290bf7c c290bf64 
c0078a78
bf60: c00af144 00000000 00000000 c2fb04c0 c290bfa4 c290bf80 c0078e44 
c00789d8
bf80: 00000000 00000000 00000000 beb4ec70 beb4eb20 00008584 00000000 
c290bfa8
bfa0: c0024a20 c0078e04 beb4ec70 beb4eb20 00000003 beb4eafb 00000005 
beb4eafb
bfc0: beb4ec70 beb4eb20 00008584 40070ea8 beb4eba4 00000001 000084c8 
beb4eb1c
bfe0: 4002af88 beb4eae8 0000871c 4002af90 20000010 00000003 00000000 
00000000
Backtrace:
[<c0034b1c>] (__wake_up_common+0x0/0x74) from [<c0034bbc>] 
(__wake_up+0x2c/0x34)
[<c0034b90>] (__wake_up+0x0/0x34) from [<c002680c>] (__up+0x20/0x24)
  r4 = C3CFA400
[<c00267ec>] (__up+0x0/0x24) from [<c0212e4c>] (__up_wakeup+0xc/0x10)
[<c0186100>] (ad7418_update_device+0x0/0xfc) from [<c0186320>] 
(adc_volt+0x28/0x5c)
  r7 = C3D3E350  r6 = 00000005  r5 = C2934000  r4 = C3CFA414
[<c01862f8>] (adc_volt+0x0/0x5c) from [<c015248c>] (dev_attr_show+0x28/0x2c)
  r5 = 00000000  r4 = C3426CE0
[<c0152464>] (dev_attr_show+0x0/0x2c) from [<c00af204>] 
(sysfs_read_file+0xcc/0x1d0)
[<c00af138>] (sysfs_read_file+0x0/0x1d0) from [<c0078a78>] 
(vfs_read+0xac/0xd4)
[<c00789cc>] (vfs_read+0x0/0xd4) from [<c0078e44>] (sys_read+0x4c/0x80)
  r6 = C2FB04C0  r5 = 00000000  r4 = 00000000
[<c0078df8>] (sys_read+0x0/0x80) from [<c0024a20>] 
(ret_fast_syscall+0x0/0x2c)
  r6 = 00008584  r5 = BEB4EB20  r4 = BEB4EC70
Code: bad PC value.