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SubjectRe: [PATCH 2.6] fix address passing of unknown_bootoption
Andrew Morton wrote:
> Michael Buesch <mbuesch@freenet.de> wrote:
>
>>Hi Andrew,
>>
>>Addresses of functions are returned by their name without
>>parantheses. Remove an & in main.c
>
>
> Using `&' in fornt of a function name when passing the function's address
> is unnecessary and is kinda dorky, but your patch shouldn't change
> generated code.
>
>
>>Unable to handle kernel paging request at virtual address 00020800
>> printing eip:
>>00020800
>>*pde = 00000000
>>Oops: 0000 [#1]
>>SMP
>>Modules linked in: ipv6 ohci_hcd tuner tvaudio msp3400 bttv video_buf btcx_risc nvidia ehci_hcd uhci_hcd usbcore intel_agp agpgart evdev
>>CPU: 0
>>EIP: 0060:[<00020800>] Tainted: P VLI
>>EFLAGS: 00010296 (2.6.9-ck3-ac6-nozeroram)
>>EIP is at 0x20800
>>eax: 00000001 ebx: b03e6000 ecx: 00000001 edx: 00000084
>>esi: 00099100 edi: b01020a7 ebp: 00459007 esp: b03e7fec
>>ds: 007b es: 007b ss: 0068
>>Process swapper (pid: 0, threadinfo=b03e6000 task=b034bac0)
>>Stack: b03e881c 000000d9 b03e8310 b04132a0 b0100211
>>Call Trace:
>> [<b03e881c>] start_kernel+0x139/0x152
>> [<b03e8310>] unknown_bootoption+0x0/0x171
>>Code: Bad EIP value.
>> <0>Kernel panic - not syncing: Attempted to kill the idle task!
>>
>>
>>Unable to handle kernel paging request at virtual address 00099108
>> printing eip:
>>b01020a7
>>*pde = 00000000
>>Oops: 0000 [#1]
>>SMP
>>Modules linked in: nvidia ohci_hcd tuner tvaudio msp3400 bttv video_buf btcx_risc ehci_hcd uhci_hcd usbcore intel_agp agpgart evdev
>>CPU: 0
>>EIP: 0060:[<b01020a7>] Tainted: P VLI
>>EFLAGS: 00010292 (2.6.9-ck2-ac4-nozeroram)
>>EIP is at cpu_idle+0x2e/0x3c
>>eax: 00000001 ebx: 00099100 ecx: 00000000 edx: 0000001d
>>esi: 00000000 edi: 00000008 ebp: 004f3007 esp: b0477fe8
>>ds: 007b es: 007b ss: 0068
>>Process swapper (pid: 0, threadinfo=b0476000 task=b03ccac0)
>>Stack: 00020800 b047881c 000000dd b0478310 b04a62a0 b0100211
>>Call Trace:
>> [<b047881c>] start_kernel+0x139/0x152
>> [<b0478310>] unknown_bootoption+0x0/0x171
>>Code: e0 ff ff 21 e3 eb 24 8b 0d 80 56 4a b0 b8 1a 20 10 b0 8b 15 a0 e5 3c b0 85 c9 0f 44 c8 8b 43 10 c1 e0 07 89 90 04 ea 4a b0 ff d1 <8b> 43 08 a8 08 74 d5 e8 0d a9 26 00 eb f2 56 53 fb ba 00 e0 ff
>> <0>Kernel panic - not syncing: Attempted to kill the idle task!
>
>
> hm, I don't know what happened there. Maybe the value of pm_idle in
> cpu_idle() is garbage. Or maybe not.

Zwane and someone else had patches for that happening IIRC
a month or 2 back.
I can dig them out if wanted... Michael, want to try?

--
~Randy
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