I'm using the most recent kernel since new motherboard need it due to
new chipsets and ethernet cards.
mISDN 1.1.7.2 does not compile with latest kernel.
So i switched to 1.1.8 and noticed that unloading the module generate a
kernel panic.
BUG: unable to handle kernel NULL pointer dereference at 000000a0
IP: [<c0253338>] class_device_remove_attrs+0x8/0x40
*pde = 00000000
Oops: 0000 [#1] PREEMPT SMP
Modules linked in: ztdummy wcte11xp wctdm zaptel(F) mISDN_dsp(-)
hfcmulti l3udss1 mISDN_l2 mISDN_l1 mISDN_core oslec via_rhine mii uhci_hcd
Pid: 5686, comm: rmmod Tainted: GF (2.6.25.7 #3)
EIP: 0060:[<c0253338>] EFLAGS: 00010246 CPU: 0
EIP is at class_device_remove_attrs+0x8/0x40
EAX: df8fb350 EBX: df8fb358 ECX: df9c7de0 EDX: c0400913
ESI: 00000000 EDI: df8fb350 EBP: 00000000 ESP: da175f10
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process rmmod (pid: 5686, ti=da174000 task=cf41c3f0 task.ti=da174000)
Stack: df8fb358 df8fb350 bfb2afc0 c0253444 00000000 df9b7b34 df8fb350
00000000
bfb2afc0 da174000 c0253488 df8fb2a0 df9b61a5 00000286 c0129f9a
00000286
c04c4814 c04c4814 df8eda83 df8fad00 00000880 df8fad00 c0144ec6
4453496d
Call Trace:
[<c0253444>] class_device_del+0xd4/0x110
[<df9b7b34>] cleanup_object+0x14/0xb0 [mISDN_core]
[<c0253488>] class_device_unregister+0x8/0x10
[<df9b61a5>] mISDN_unregister+0x75/0x100 [mISDN_core]
[<c0129f9a>] del_timer+0x5a/0x70
[<df8eda83>] dsp_cleanup+0x33/0xd0 [mISDN_dsp]
[<c0144ec6>] sys_delete_module+0xf6/0x150
[<c015b440>] remove_vma_list+0x50/0x60
[<c015be9a>] do_munmap+0xea/0x120
[<c01030a2>] syscall_call+0x7/0xb
=======================
Code: 00 00 00 85 c0 74 0c 83 c0 08 e9 c4 69 f5 ff 8d 74 26 00 c3 eb 0d
90 90 90 90 90 90 90 90 90 90 90 90 90 57 89 c7 56 53 8b 70 2c <8b> 96
a0 00 00 00 85 d2 74 28 8b 02 85 c0 74 22 bb 14 00 00 00
EIP: [<c0253338>] class_device_remove_attrs+0x8/0x40 SS:ESP 0068:da175f10
---[ end trace ca143223eefdc828 ]---
BUG: unable to handle kernel NULL pointer dereference at 000000a0
IP: [<c0253338>] class_device_remove_attrs+0x8/0x40
*pde = 00000000
Oops: 0000 [#2] PREEMPT SMP
Modules linked in: ztdummy wcte11xp wctdm zaptel(F) mISDN_dsp(-)
hfcmulti l3udss1(-) mISDN_l2 mISDN_l1 mISDN_core oslec via_rhine mii
uhci_hcd
Pid: 5691, comm: rmmod Tainted: GF D (2.6.25.7 #3)
EIP: 0060:[<c0253338>] EFLAGS: 00010246 CPU: 1
EIP is at class_device_remove_attrs+0x8/0x40
EAX: df935df0 EBX: df935df8 ECX: df8ea6a0 EDX: c0400913
ESI: 00000000 EDI: df935df0 EBP: 00000000 ESP: ddb7df10
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process rmmod (pid: 5691, ti=ddb7c000 task=dee118b0 task.ti=ddb7c000)
Stack: df935df8 df935df0 bfbda880 c0253444 00000000 df9b7bc6 df935df0
00000000
bfbda880 ddb7c000 c0253488 df935d40 df9b61a5 df9b6e6b bfbda880
ddb7c000
df935780 df935780 df92bfc8 df935780 00000880 df935780 c0144ec6
6475336c
Call Trace:
[<c0253444>] class_device_del+0xd4/0x110
[<df9b7bc6>] cleanup_object+0xa6/0xb0 [mISDN_core]
[<c0253488>] class_device_unregister+0x8/0x10
[<df9b61a5>] mISDN_unregister+0x75/0x100 [mISDN_core]
[<df9b6e6b>] mISDN_module_unregister+0x7b/0xa0 [mISDN_core]
[<df92bfc8>] cleanup_module+0x18/0x80 [l3udss1]
[<c0144ec6>] sys_delete_module+0xf6/0x150
[<c015b440>] remove_vma_list+0x50/0x60
[<c015be9a>] do_munmap+0xea/0x120
[<c01030a2>] syscall_call+0x7/0xb
=======================
Code: 00 00 00 85 c0 74 0c 83 c0 08 e9 c4 69 f5 ff 8d 74 26 00 c3 eb 0d
90 90 90 90 90 90 90 90 90 90 90 90 90 57 89 c7 56 53 8b 70 2c <8b> 96
a0 00 00 00 85 d2 74 28 8b 02 85 c0 74 22 bb 14 00 00 00
EIP: [<c0253338>] class_device_remove_attrs+0x8/0x40 SS:ESP 0068:ddb7df10
---[ end trace ca143223eefdc828 ]---
BUG: unable to handle kernel NULL pointer dereference at 000000a0
IP: [<c0253338>] class_device_remove_attrs+0x8/0x40
*pde = 00000000
Oops: 0000 [#3] PREEMPT SMP
Modules linked in: ztdummy wcte11xp wctdm zaptel(F) mISDN_dsp(-)
hfcmulti l3udss1(-) mISDN_l2(-) mISDN_l1 mISDN_core oslec via_rhine mii
uhci_hcd
Pid: 5695, comm: rmmod Tainted: GF D (2.6.25.7 #3)
EIP: 0060:[<c0253338>] EFLAGS: 00010246 CPU: 1
EIP is at class_device_remove_attrs+0x8/0x40
EAX: df929050 EBX: df929058 ECX: df8ea6a0 EDX: c0400913
ESI: 00000000 EDI: df929050 EBP: 00000000 ESP: c4497f10
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process rmmod (pid: 5695, ti=c4496000 task=da0f3150 task.ti=c4496000)
Stack: df929058 df929050 bf96b610 c0253444 00000000 df9b7bc6 df929050
00000000
bf96b610 c4496000 c0253488 df928fa0 df9b61a5 df9b6e6b bf96b610
c4496000
df928a00 df928a00 df91f668 df928a00 00000880 df928a00 c0144ec6
4453496d
Call Trace:
[<c0253444>] class_device_del+0xd4/0x110
[<df9b7bc6>] cleanup_object+0xa6/0xb0 [mISDN_core]
[<c0253488>] class_device_unregister+0x8/0x10
[<df9b61a5>] mISDN_unregister+0x75/0x100 [mISDN_core]
[<df9b6e6b>] mISDN_module_unregister+0x7b/0xa0 [mISDN_core]
[<df91f668>] cleanup_module+0x18/0x90 [mISDN_l2]
[<c0144ec6>] sys_delete_module+0xf6/0x150
[<c015b440>] remove_vma_list+0x50/0x60
[<c015be9a>] do_munmap+0xea/0x120
[<c01030a2>] syscall_call+0x7/0xb
=======================
Code: 00 00 00 85 c0 74 0c 83 c0 08 e9 c4 69 f5 ff 8d 74 26 00 c3 eb 0d
90 90 90 90 90 90 90 90 90 90 90 90 90 57 89 c7 56 53 8b 70 2c <8b> 96
a0 00 00 00 85 d2 74 28 8b 02 85 c0 74 22 bb 14 00 00 00
EIP: [<c0253338>] class_device_remove_attrs+0x8/0x40 SS:ESP 0068:c4497f10
---[ end trace ca143223eefdc828 ]---
BUG: unable to handle kernel NULL pointer dereference at 000000a0
IP: [<c0253338>] class_device_remove_attrs+0x8/0x40
*pde = 00000000
Oops: 0000 [#4] PREEMPT SMP
Modules linked in: ztdummy wcte11xp wctdm zaptel(F) mISDN_dsp(-)
hfcmulti l3udss1(-) mISDN_l2(-) mISDN_l1(-) mISDN_core oslec via_rhine
mii uhci_hcd
Pid: 5699, comm: rmmod Tainted: GF D (2.6.25.7 #3)
EIP: 0060:[<c0253338>] EFLAGS: 00010246 CPU: 1
EIP is at class_device_remove_attrs+0x8/0x40
EAX: df84c350 EBX: df84c358 ECX: df8ea6a0 EDX: c0400913
ESI: 00000000 EDI: df84c350 EBP: 00000000 ESP: da175f10
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process rmmod (pid: 5699, ti=da174000 task=def12910 task.ti=da174000)
Stack: df84c358 df84c350 bfc93930 c0253444 00000000 df9b7bc6 df84c350
00000000
bfc93930 da174000 c0253488 df84c2a0 df9b61a5 df9b6e6b bfc93930
da174000
df84bd00 df84bd00 df849078 df84bd00 00000880 df84bd00 c0144ec6
4453496d
Call Trace:
[<c0253444>] class_device_del+0xd4/0x110
[<df9b7bc6>] cleanup_object+0xa6/0xb0 [mISDN_core]
[<c0253488>] class_device_unregister+0x8/0x10
[<df9b61a5>] mISDN_unregister+0x75/0x100 [mISDN_core]
[<df9b6e6b>] mISDN_module_unregister+0x7b/0xa0 [mISDN_core]
[<df849078>] cleanup_module+0x18/0x90 [mISDN_l1]
[<c0144ec6>] sys_delete_module+0xf6/0x150
[<c015b440>] remove_vma_list+0x50/0x60
[<c015be9a>] do_munmap+0xea/0x120
[<c01030a2>] syscall_call+0x7/0xb
=======================
Code: 00 00 00 85 c0 74 0c 83 c0 08 e9 c4 69 f5 ff 8d 74 26 00 c3 eb 0d
90 90 90 90 90 90 90 90 90 90 90 90 90 57 89 c7 56 53 8b 70 2c <8b> 96
a0 00 00 00 85 d2 74 28 8b 02 85 c0 74 22 bb 14 00 00 00
EIP: [<c0253338>] class_device_remove_attrs+0x8/0x40 SS:ESP 0068:da175f10
---[ end trace ca143223eefdc828 ]---
release_l1 id 100
release_l1 id 200
release_l1 id 300
release_l1 id 400
BUG: unable to handle kernel NULL pointer dereference at 000000a0
IP: [<c0253338>] class_device_remove_attrs+0x8/0x40
*pde = 00000000
Oops: 0000 [#5] PREEMPT SMP
Modules linked in: ztdummy wcte11xp wctdm zaptel(F) mISDN_dsp(-)
hfcmulti(-) l3udss1(-) mISDN_l2(-) mISDN_l1(-) mISDN_core oslec
via_rhine mii uhci_hcd
Pid: 5704, comm: rmmod Tainted: GF D (2.6.25.7 #3)
EIP: 0060:[<c0253338>] EFLAGS: 00010256 CPU: 0
EIP is at class_device_remove_attrs+0x8/0x40
EAX: df8ea750 EBX: df8ea758 ECX: df9c7de0 EDX: c0400913
ESI: 00000000 EDI: df8ea750 EBP: 00000000 ESP: ddb7def8
DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
Process rmmod (pid: 5704, ti=ddb7c000 task=def12910 task.ti=ddb7c000)
Stack: df8ea758 df8ea750 bfc218c0 c0253444 00000000 44f460c2 df8ea750
00000000
bfc218c0 ddb7c000 c0253488 df8ea6a0 df9b61a5 df9b6e6b c13e8880
c011a8ba
df8ea100 00000000 df8e1c80 fffffff0 bfc218c0 ddb7c000 c01336f4
df8ea100
Call Trace:
[<c0253444>] class_device_del+0xd4/0x110
[<c0253488>] class_device_unregister+0x8/0x10
[<df9b61a5>] mISDN_unregister+0x75/0x100 [mISDN_core]
[<df9b6e6b>] mISDN_module_unregister+0x7b/0xa0 [mISDN_core]
[<c011a8ba>] try_to_wake_up+0x6a/0x100
[<df8e1c80>] HFCmulti_cleanup+0x50/0x300 [hfcmulti]
[<c01336f4>] kthread_stop+0x64/0x70
[<c0144ec6>] sys_delete_module+0xf6/0x150
[<c015b440>] remove_vma_list+0x50/0x60
[<c015be9a>] do_munmap+0xea/0x120
[<c01030a2>] syscall_call+0x7/0xb
=======================
Code: 00 00 00 85 c0 74 0c 83 c0 08 e9 c4 69 f5 ff 8d 74 26 00 c3 eb 0d
90 90 90 90 90 90 90 90 90 90 90 90 90 57 89 c7 56 53 8b 70 2c <8b> 96
a0 00 00 00 85 d2 74 28 8b 02 85 c0 74 22 bb 14 00 00 00
EIP: [<c0253338>] class_device_remove_attrs+0x8/0x40 SS:ESP 0068:ddb7def8
---[ end trace ca143223eefdc828 ]---
Freed a Wildcard
Zapata Telephony Interface Unloaded
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