[jira] [Commented] (MESOS-6835) Fix SIGBUS on ARM64/AArch64

["AndyPang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MESOS-6835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15779461#comment-15779461 ] 

AndyPang commented on MESOS-6835:
---------------------------------

I meet this question long long ago, and simply fix this question, it maybe helps:
https://issues.apache.org/jira/browse/MESOS-4577 
 

> Fix SIGBUS on ARM64/AArch64
> ---------------------------
>
>                 Key: MESOS-6835
>                 URL: https://issues.apache.org/jira/browse/MESOS-6835
>             Project: Mesos
>          Issue Type: Bug
>          Components: security, stout
>            Reporter: Aaron Wood
>            Assignee: Aaron Wood
>
> Currently in the Linux launcher when the stack is allocated and prepared for a call to clone() it is not properly aligned. This is not an issue for x86 or x64 but for ARM64/AArch64 it is because of the requirement of having the stack aligned to a 16 byte boundary. While x86 and x64 also expect the stack to have a 16 byte aligned stack, it is not enforced. An explanation of the stack and requirements for ARM64 can be found here http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055b/IHI0055B_aapcs64.pdf (specifically section 5.2.2.1 that says SP mod 16 = 0. The stack must be quad-word aligned.)
> Additionally, the way that the stack is currently allocated and passed to clone() accidentally chops off one entry, making a stack overflow using those missing 8 bytes a possibility. Fixing this while aligning the memory will fix both the issue of the stack overflow issue as well as the SIGBUS crash.
> https://reviews.apache.org/r/54996/



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