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| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2015-02-18 00:58:35 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2015-02-18 00:58:35 +0100 |
| commit | 49a086299e047b18280457b654790ef4a2e5abfa (patch) | |
| tree | c2b29e0734d560ce4f58c6945390650b5cac8a1b /open_issues/libnetfs_io_map.mdwn | |
| parent | e2b3602ea241cd0f6bc3db88bf055bee459028b6 (diff) | |
Revert "rename open_issues.mdwn to service_solahart_jakarta_selatan__082122541663.mdwn"
This reverts commit 95878586ec7611791f4001a4ee17abf943fae3c1.
Diffstat (limited to 'open_issues/libnetfs_io_map.mdwn')
| -rw-r--r-- | open_issues/libnetfs_io_map.mdwn | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/open_issues/libnetfs_io_map.mdwn b/open_issues/libnetfs_io_map.mdwn new file mode 100644 index 00000000..dc6da202 --- /dev/null +++ b/open_issues/libnetfs_io_map.mdwn @@ -0,0 +1,42 @@ +[[!meta copyright="Copyright © 2012 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +[[!meta title="libnetfs: io_map"]] + +[[!tag open_issue_hurd]] + +This hampers [[hurd/translator/nfs]] usability, for example: + + $ fsysopts ./ + /hurd/nfs [...] + $ cp -a /bin/true ./ + cp: failed to preserve authorship for `./true': Operation not supported + $ ./true + $ /lib/ld.so /bin/true + $ /lib/ld.so $PWD/true + [...]/true: error while loading shared libraries: [...]/true: failed to map segment from shared object: Error 1073741869 + +IRC, freenode, #hurd, 2012-03-14: + + <civodul> i just realized that ld.so uses mmap unconditionally + <civodul> so executables or shared libs can't be used off a netfs-based + file system + <civodul> that's annoying + <tschwinge> civodul: Do you know what it takes to fix libnetfs? I have no + idea. + <tschwinge> Never looked at it. + <civodul> tschwinge: implementing io_map + <civodul> but i think the idea is that io_map typically isn't convenient + for network file systems + <civodul> which is why it doesn't have it + <civodul> the GCS says "thou shall not require mmap" ;-) + +<http://lists.gnu.org/archive/html/bug-hurd/2001-10/msg00306.html>. Analysis +to be found on [[glibc/mmap]] page. |