[Crash-utility] [ANNOUNCE] crash gcore command version 1.2.1 is released
Dave Anderson
anderson at redhat.com
Tue May 14 14:50:07 UTC 2013
----- Original Message -----
> This is the release of crash gcore command, version 1.2.1.
>
> ChangeLog:
>
> - Fix failure of coredump at accessing memory for VSYSCALL page due
> to wrong conversion of uvtop which wrongly treats address
> VSYSCALL_START as belongs to kernel direct mapping region. This fix
> executes uvtop in verbose mode to make it always paging and
> retrieves the correct physical address from its output. Without
> this fix, VSYSCALL page fails to be collected and core dump process
> is aborted; though VSYSCALL page is done in the last so allmost all
> corefile is already generated.
> (d.hatayama at jp.fujitsu.com)
>
> - Skip page-faulted pages by lseek() rather than writing zero-filled
> pages. By this, generated core file has holes in the corresponding
> positions for each page-faulted pages if filesystem supports sparse
> files. This is highly useful when the target process has huge
> virtual memory space such as qemu process that has huge physical
> memory of KVM guest machine.
> (d.hatayama at jp.fujitsu.com)
>
> - Fix the bug that filter for hugepage shared/private memory can
> depend on flags other than HP or HS flags. This was introduced at
> the introduction of VM_DONTDUMP where VM_RESERVED flag was
> removed. At the time, there was a check to see if VM_REESRVED flag
> was set after a check to see if VM_HUGETLB. But the latter check
> was not changed when the former check was removed.
> (d.hatayama at jp.fujitsu.com)
>
> MD5 CheckSum:
>
> $ md5sum crash-gcore-command-1.2.1.tar.gz
> e767ab8f5e00a881f5c6e64fde541f7d crash-gcore-command-1.2.1.tar.gz
>
> --
> Thanks.
> HATAYAMA, Daisuke
Thanks Daisuke -- I've posted crash-gcore-command-1.2.1.tar.gz on the
extensions page:
http://people.redhat.com/anderson/extensions.html#GCORE
Dave
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