[Crash-utility] [ANNOUNCE] crash gcore command, version 1.2.1 is released

[HATAYAMA Daisuke]

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
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