在 2015/2/9 16:26, Greg KH 写道:
> On Mon, Feb 09, 2015 at 05:53:50AM +0000, Sheng Yong wrote:
>> Hi, Greg,
>> The commit 88b5d12 ("mm: propagate error from stack expansion even for
>> guard page") for 3.10-stable makes the testcase get "bus error", while
>> it had "segmentation fault" in older kernels.
>>
>> ===== testcase =====
>> int main(void)
>> {
>> main();
>> return 0;
>> }
>> ====================
>>
>> These 2 patches fix it by adding a VM_FAULT_SIGSEGV in all architecture
>> fault handlers.
>>
>> [PATCH 1/2] is asjusted to ignore un-supported arch and driver in 3.10.
>> And some files are separated or renamed in newer kernel, so [PATCH 1/2]
>> is also adjusted to add the VM_FAULT_SIGSEGV handling in the original
>> files in 3.10.
>>
>> thanks,
>> Sheng
>>
>> Sheng Yong (1):
>> vm: add VM_FAULT_SIGSEGV handling support
>>
>> Linus Torvalds (1):
>> vm: make stack guard page errors return VM_FAULT_SIGSEGV rather than
>> SIGBUS
>
> Can you provide backports for 3.14-stable as well, so that I can apply
> the patch to both trees?
Hi, Greg,
The backports for 3.14-stable is sent to the you and stable mailing list in
another mail.
thanks,
Sheng
>
> thanks,
>
> greg k-h
>
> .
>
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