[Crash-utility] [ANNOUNCE] crash gcore command, version 1.2.2 is released

Dave Anderson anderson at redhat.com
Wed Oct 9 13:11:28 UTC 2013


Posted to the crash extensions page:

  http://people.redhat.com/anderson/extensions.html#GCORE

Thanks,
  Dave

----- Original Message -----
> This is the release of crash gcore command, version 1.2.2.
> 
> ChangeLog:
> 
>  - Now gcore collects and writes ELF note segments in O(1) memory
>    consumption with regard to the number of threads. The implementation
>    so far had created ELF note segments for all the threads as a list
>    at the same time, and so memory consumption had grown in proportion
>    to the number of threads. In contrast, new implementation writes
>    ELF note segments one by one. Without this change, gcore could fail
>    abnormally if specified process consists of threads more than tens of
>    thousands, with the message: "gcore: cannot allocate any more memory!".
>    (d.hatayama at jp.fujitsu.com)
> 
>  - Fix the address of vdso virtual address in x86_64 compat mode by using
>    fixed VDSO_HIGH_BASE, not by vma->vm_mm->context.vdso. Without this
>    fix, access to vdso page fails in x86_64 compat mode and vdso page
>    fails to be collected in generated process core dump.
>    (d.hatayama at jp.fujitsu.com)
> 
>  - Tested on RHEL5.10.
>    (d.hatayama at jp.fujitsu.com)
> 
> MD5 CheckSum:
> 
> $ md5sum crash-gcore-command-1.2.2.tar.gz
> c343a47be9c9df64578777533c04e09a  crash-gcore-command-1.2.2.tar.gz
> 
> --
> Thanks.
> HATAYAMA, Daisuke
> 
> --
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