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Re: index-pack died on pread

From
Alex Riesen <raa.lkml@gmail.com>
Date
Jul 26, 2007, 12:42 UTC
Message-ID
<81b0412b0707260542o58fcb73bu81ae09aa1df84c81@mail.gmail.com>
In-Reply-To
<alpine.LFD.0.999.0707251636490.3607@woody.linux-foundation.org>
On 7/26/07, Linus Torvalds <torvalds@linux-foundation.org> wrote:
Show 10 quoted lines
> On Thu, 26 Jul 2007, Robin Rosenberg wrote:
> >
> > Does cygwin have the same pread problem then.. ? after make NO_PREAD=1 with 1.5.2.4
> > clone works.
>
> Interesting.
>
> It's true that pread() is used much less than normal reads, and maybe the
> cygwin pread() is indeed broken. But it's intriguing how apparently both
> HP-UX and Cygwin are showing the same breakage.
Maybe because neither _has_ POSIX pread? This is cygwin's pread, I believe:
http://cygwin.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/fhandler_disk_file.cc?rev=1.225&content-type=text/x-cvsweb-markup&cvsroot=src

Windows has means to implement it natively, but the interface is so ugly (see OVERLAPPED, if interested), that it is no wonder Cygwin chose to just use lseek.

Previous: Linus TorvaldsNext: Linus Torvalds
Message 9 of 17 in “index-pack died on pread”
  1. Michal RokosJul 23, 2007
  2. Alex RiesenJul 23, 2007
  3. Michal RokosJul 25, 2007
  4. Alex RiesenJul 25, 2007
  5. Linus TorvaldsJul 23, 2007
  6. Nicolas PitreJul 23, 2007
  7. Robin RosenbergJul 25, 2007
  8. Linus TorvaldsJul 25, 2007
  9. Alex RiesenJul 26, 2007
  10. Linus TorvaldsJul 26, 2007
  11. Alex RiesenJul 26, 2007
  12. Linus TorvaldsJul 26, 2007
  13. Junio C HamanoJul 27, 2007
  14. Linus TorvaldsJul 27, 2007
  15. Tomash BrechkoJul 27, 2007
  16. Tomash BrechkoJul 27, 2007
  17. Nicolas PitreJul 27, 2007

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