[ruby-talk:20683] eruby 0.9.6 doesn't work with ruby 1.7.1

I can't make eruby 0.9.6 work with ruby 1.7.1. It works fine with ruby
1.6.1.

Here's a small eruby script which core dumps on every run (eruby core
dumps with other standard libraries as well):

  <%
    require 'thread'
  %>

And as far as I'm able to decipher the debugger output the file is being
closed (by calling rb_io_close) normally after succesful read, but in
the meanwhile the IO object gets messed so that RFILE(io)->fptr (on
io.c:1107) actually points to 0x8 instead of some meaningful struct
containing FILE pointers.

Where and why it's messed up beats me. Here's some debugging info. The
platform is i686-linux on a bit modernized Redhat 7.0. Many thanks.

    - Aleksi


Here are the strace outputs (first core dumps and the latter with 1.6.4
works):

[eruby-0.9.6-1.7]$ strace ./eruby ~/public_html/monitor3.rhtml
...
stat64("/usr/local/lib/ruby/1.7/thread.rb", {st_mode=S_IFREG|0644,
st_size=4350, ...}) = 0
open("/usr/local/lib/ruby/1.7/thread.rb", O_RDONLY) = 4
close(4)                                = 0
open("/usr/local/lib/ruby/1.7/thread.rb", O_RDONLY) = 4
close(4)                                = 0
open("/usr/local/lib/ruby/1.7/thread.rb", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=4350, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0x40018000
read(4, "#\n#\t\tthread.rb - thread support "..., 4096) = 4096
brk(0x8115000)                          = 0x8115000
brk(0x8116000)                          = 0x8116000
read(4, "it.shift\n\tt.wakeup if t\n      re"..., 4096) = 254
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x40018000, 4096)                = 0
close(3)                                = 0
munmap(0x40017000, 4096)                = 0
--- SIGSEGV (Segmentation fault) ---
write(2, "./eruby: [BUG] Segmentation faul"..., 33./eruby: [BUG]
Segmentation fault) = 33
write(2, "\n", 1
)                       = 1
write(2, "ruby 1.7.1 (2001-08-29) [i686-li"..., 37ruby 1.7.1
(2001-08-29) [i686-linux]
) = 37
rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0
getpid()                                = 13817
kill(13817, SIGABRT)                    = 0
--- SIGABRT (Aborted) ---
+++ killed by SIGABRT +++





[eruby-0.9.6-1.6]$ strace ./eruby ~/public_html/monitor3.rhtml
...
stat64("/usr/local/lib/ruby/1.6/thread.rb", {st_mode=S_IFREG|0644,
st_size=4301, ...}) = 0
stat64("/usr/local/lib/ruby/1.6/thread.rb", {st_mode=S_IFREG|0644,
st_size=4301, ...}) = 0
open("/usr/local/lib/ruby/1.6/thread.rb", O_RDONLY) = 4
close(4)                                = 0
open("/usr/local/lib/ruby/1.6/thread.rb", O_RDONLY) = 4
fstat64(4, {st_mode=S_IFREG|0644, st_size=4301, ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0x40018000
read(4, "#\n#\t\tthread.rb - thread support "..., 4096) = 4096
brk(0x810a000)                          = 0x810a000
brk(0x810b000)                          = 0x810b000
read(4, "\tretry\n      ensure\n\tThread.crit"..., 4096) = 205
read(4, "", 4096)                       = 0
close(4)                                = 0
munmap(0x40018000, 4096)                = 0
close(3)                                = 0
munmap(0x40017000, 4096)                = 0
fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 12), ...}) = 0
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0x40017000
ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
write(1, "\n", 1
)                       = 1
write(1, "\n", 1
)                       = 1
munmap(0x40017000, 4096)                = 0
_exit(0)                                = ?




And finally a gdb stacktrace:

Starting program: /home/aleksi/imu/ruby/raa/eruby-0.9.6-1.7/eruby
/home/aleksi/public_html/monitor3.rhtml

Program received signal SIGSEGV, Segmentation fault.
rb_io_fptr_close (fptr=0x8) at io.c:1094
1094	    if (!fptr->f && !fptr->f2) return;
(gdb) bt
#0  rb_io_fptr_close (fptr=0x8) at io.c:1094
#1  0x807918f in rb_io_close (io=1075559332) at io.c:1108
#2  0x8053ac9 in eruby_load (
    filename=0xbffff8cb "/home/aleksi/public_html/monitor3.rhtml",
wrap=0, 
    state=0xbffff690) at eruby_lib.c:692
#3  0x80523cd in run () at eruby_main.c:531
#4  0x8052503 in main (argc=2, argv=0xbffff72c) at eruby_main.c:558
#5  0x40093b5c in __libc_start_main (main=0x80524e4 <main>, argc=2, 
    ubp_av=0xbffff72c, init=0x80507b4 <_init>, fini=0x80bab90 <_fini>, 
    rtld_fini=0x4000d634 <_dl_fini>, stack_end=0xbffff724)
    at ../sysdeps/generic/libc-start.c:129


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