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From Philip Martin <philip.mar...@wandisco.com>
Subject Re: JavaHL, 1.9: "Bad file descriptor", "Stream doesn't support this capability" errors
Date Fri, 14 Aug 2015 09:21:29 GMT
Marc Strapetz <marc.strapetz@syntevo.com> writes:

> It's reproducible with an empty repository on the server (just
> initialized with svnadmin) and a local repository which has been
> prepared for the initial import:
>
> C:\temp\svn> svn status -v
>                  0        0  ?           .
> A                -       ?   ?           dir
> A                -       ?   ?           dir\subfile
> A                -       ?   ?           file
>
> C:\temp\svn> svn commit -m "initial import"
> svn: E140004: Commit failed (details follow):
> svn: E140004: Stream doesn't support this capability
> svn: E000009: Polling for available data on filestream failed: Bad
> file descriptor
>
> On the server, we are running SVN 1.6.17.

That's the apr_poll() call in data_available_handler_apr() failing, and
E000009 could be EBADF.  I suppose the file could have been closed, or
the file descriptor could have been overwritten.  What do you see in the
debugger?

Breakpoint 2, data_available_handler_apr (baton=0x669500, 
    data_available=0x7fffffffdccc)
    at ../src/subversion/libsvn_subr/stream.c:955
955	  status = apr_poll(&pfd, 1, &n, 0);
(gdb) p pfd.desc.f[0].filedes
$6 = 6

On Linux I can check that 6 a valid file descriptor for this process:

$ ls -l /proc/28574/fd/6
lr-x------ 1 pm pm 64 Aug 14 10:18 /proc/28574/fd/6 -> pipe:[612259]

-- 
Philip Martin
WANdisco

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