Messages in this thread | | | Date | Tue, 9 Sep 2008 20:20:32 +0900 | From | "KOSAKI Motohiro" <> | Subject | Re: [PATCH] coredump_filter: add hugepage core dumping |
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> I think it was just forgotten to be updated. Bit 4 was introduced > by Roland McGrath, and it means elf header pages in file-backed > private VMAs are dumped even if bit 2 is cleared. > > Thanks, > > > Subject: [PATCH] coredump_filter: add description of bit 4 > > There is no description of bit 4 of coredump_filter in the > documentation. This patch adds it. > > Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> > CC: Roland McGrath <roland@redhat.com> > --- > Documentation/filesystems/proc.txt | 2 ++ > 1 file changed, 2 insertions(+) > > Index: linux-2.6.27-rc5/Documentation/filesystems/proc.txt > =================================================================== > --- linux-2.6.27-rc5.orig/Documentation/filesystems/proc.txt > +++ linux-2.6.27-rc5/Documentation/filesystems/proc.txt > @@ -2394,6 +2394,8 @@ The following 4 memory types are support > - (bit 1) anonymous shared memory > - (bit 2) file-backed private memory > - (bit 3) file-backed shared memory > + - (bit 4) ELF header pages in file-backed private memory areas (it is > + effective only if the bit 2 is cleared) > > Note that MMIO pages such as frame buffer are never dumped and vDSO pages > are always dumped regardless of the bitmask status.
Very thanks, kawai-san.
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
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