Mono's XSP crashes on browser connection

Tom McLaughlin tmclaugh at sdf.lonestar.org
Wed Mar 2 05:40:56 GMT 2005


Alright, people can ignore this Mono crash and just look at the mcs one
in my other email.  Both XSP and mcs are experiencing the same bug it
looks like and the mcs code is much simpler and easier to illustrate.
Sorry for the noise.  I'm just trying to bang these out since I've been
sitting on them so long.  Thanks.  

Tom


On Sun, 2005-02-27 at 19:43 -0500, Tom McLaughlin wrote:
> Hi, I have a port for Mono's XSP web server for ASP.NET but it has never
> worked from 1.0 to the latest version, 1.0.6.  The crash has always been
> the same.  Finally I've had a chance to sit down with a machine and
> generate a usable backtrace.  The attached backtrace was generated on
> -STABLE from February 19 using Mono 1.1.4 after connecting to the server
> with a browser.  (Mono 1.1.4 does not build on -CURRENT right now which
> has become the version I'm focusing on for crashes since 1.2 will be out
> in late April.  The crash does occur on Mono 1.0.6 as well which is in
> ports and does build on -CURRENT.)  If needed, I can regenerate the
> backtrace using -CURRENT once 1.1.4 builds.  The xsp and mono-devel
> ports can be found here:
> 
> http://tmclaugh.freeshell.org/files/mono/
> 
> Thanks,
> Tom
> 
> 
> Backtrace:
> 
> [tom at europe-monodev test]$ cd /usr/local/share/doc/xsp/test
> [tom at europe-monodev test]$ gdb /usr/local/bin/mono
> GNU gdb 6.1.1 [FreeBSD]
> Copyright 2004 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you
> are
> welcome to change it and/or distribute copies of it under certain
> conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for
> details.
> This GDB was configured as "i386-marcel-freebsd"...
> (gdb) run /usr/local/lib/mono/1.0/xsp.exe --address 192.168.1.29
> Starting program: /usr/local/bin/mono /usr/local/lib/mono/1.0/xsp.exe
> --address 192.168.1.29
> xsp
> Listening on port: 8080
> Listening on address: 192.168.1.29
> Root directory: /usr/local/share/doc/xsp/test
> Hit Return to stop the server.
> 
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to Thread 4 (LWP 100105)]
> 0x2836b27c in _lock_acquire (lck=0x8203700, lu=0x8428248, prio=0)
>     at /usr/src/lib/libpthread/sys/lock.c:182
> 182     /usr/src/lib/libpthread/sys/lock.c: No such file or directory.
>         in /usr/src/lib/libpthread/sys/lock.c
> (gdb) bt full
> #0  0x2836b27c in _lock_acquire (lck=0x8203700, lu=0x8428248, prio=0)
>     at /usr/src/lib/libpthread/sys/lock.c:182
>         i = 0
>         lval = -1083264012
>         __func__ = "_lock_acquire"
> #1  0x2835e537 in mutex_lock_common (curthread=0x8428200, m=0x285668e0,
>     abstime=0x0) at /usr/src/lib/libpthread/thread/thr_mutex.c:519
>         private = 0
>         ret = 0
> #2  0x2835fb03 in __pthread_mutex_lock (m=0x285668e0)
>     at /usr/src/lib/libpthread/thread/thr_mutex.c:844
>         curthread = (struct pthread *) 0x8428200
>         ret = 0
> #3  0x080e8af9 in WaitForSingleObjectEx (handle=0x1c98, timeout=500,
>     alertable=0) at handles-private.h:100
>         ret = 135133339
>         waited = 1
>         abstime = {tv_sec = 1164, tv_nsec = 1056}
>         thr_ret = 0
>         apc_pending = 0
>         current_thread = 0x1c71
>         __PRETTY_FUNCTION__ = "WaitForSingleObjectEx"
> #4  0x080df8d6 in CreateProcess (appname=0x18, cmdline=0x876455c,
>     process_attrs=0x0, thread_attrs=0x0, inherit_handles=1,
> create_flags=1024,
>     new_environ=0x0, cwd=0x0, startup=0xbf6eb594,
> process_info=0xbf6eb584)
>     at processes.c:437
>         cmd = (gchar *) 0x881ca00 "'/usr/local/bin/mcs'"
>         prog = (gchar *) 0x881ca40 "/usr/local/bin/mcs"
>         full_prog = (
>     gchar *) 0x8809c00
> "'/usr/local/bin/mcs' /target:library /debug- /optimize+ /warn:1 /out:
> \"/var/tmp/tom-temp-aspnet/854b17b2/14374.dll\" /r:\"System.dll\" /r:
> \"System.Xml.dll\" /r:\"System.Data.dll\" /r:\"System.Web.dll\" /r:
> \"Syst"...
>         args = (
>     gchar *) 0x8809800 "/target:library /debug- /optimize+ /warn:1 /out:
> \"/var/tmp/tom-temp-aspnet/854b17b2/14374.dll\" /r:\"System.dll\" /r:
> \"System.Xml.dll\" /r:\"System.Data.dll\" /r:\"System.Web.dll\" /r:
> \"System.Web.Services.dll\" "...        args_after_prog = (
>     gchar *) 0x8809800 "/target:library /debug- /optimize+ /warn:1 /out:
> \"/var/tmp/tom-temp-aspnet/854b17b2/14374.dll\" /r:\"System.dll\" /r:
> \"System.Xml.dll\" /r:\"System.Data.dll\" /r:\"System.Web.dll\" /r:
> \"System.Web.Services.dll\" "...        dir = (gchar *) 0x881ca20
> "/usr/local/share/doc/xsp/test"
>         env = 1056
>         stored_dir = 88
>         stored_prog = 1164
>         i = 24
>         ret = 1
>         stdin_handle = 0xbf6eb584
>         stdout_handle = 0x18
>         stderr_handle = 0x0
>         pid = 23635
>         tid = 0
>         process_handle = 0x1c98
>         thread_handle = 0x1c99
>         process_handle_data = (struct _WapiHandle_process *) 0xbf6eb52c
> #5  0x080b764c in ves_icall_System_Diagnostics_Process_Start_internal (
>     appname=0x875f9d8, cmd=0x8764550, dirname=0x8371700,
> stdin_handle=0x0,
>     stdout_handle=0x0, stderr_handle=0x0, process_info=0xbf6eb6ac)
>     at process.c:847
>         ret = 24
>         dir = (gunichar2 *) 0x0
>         startinfo = {cb = 68, lpReserved = 0x0, lpDesktop = 0x0,
>   lpTitle = 0x0, dwX = 0, dwY = 0, dwXSize = 0, dwYSize = 0,
>   dwXCountChars = 0, dwYCountChars = 0, dwFillAttribute = 0,
>   dwFlags = STARTF_USESTDHANDLES, wShowWindow = 0, cbReserved2 = 0,
>   lpReserved2 = 0x0, hStdInput = 0x0, hStdOutput = 0x18, hStdError =
> 0x1a}
>         procinfo = {hProcess = 0x1c98, hThread = 0x1c99, dwProcessId =
> 23635,
>   dwThreadId = 0}
>         shell_path = (gunichar2 *) 0x8824a00
>         env_vars = (gchar *) 0x0
>         free_shell_path = 0
>         newcmd = (gchar *) 0xbf6eb6ac ""
>         tmp = (gchar *) 0x8760f90 "\020j\200\b"
> #6  0x28d038f6 in ?? ()
> No symbol table info available.
> #7  0x0875f9d8 in ?? ()
> No symbol table info available.
> #8  0x08764550 in ?? ()
> No symbol table info available.
> #9  0x08371700 in ?? ()
> No symbol table info available.
> #10 0x00000000 in ?? ()
> No symbol table info available.
> #11 0x00000018 in ?? ()
> No symbol table info available.
> #12 0x0000001a in ?? ()
> No symbol table info available.
> #13 0xbf6eb6ac in ?? ()
> No symbol table info available.
> #14 0xbf6ebb0c in ?? ()
> No symbol table info available.
> #15 0x0841a6c8 in ?? ()
> No symbol table info available.
> #16 0x08808dc0 in ?? ()
> No symbol table info available.
> #17 0x0875f9d8 in ?? ()
> No symbol table info available.
> #18 0x08761e10 in ?? ()
> No symbol table info available.
> #19 0x08760f90 in ?? ()
> No symbol table info available.
> #20 0xbf6eb640 in ?? ()
> No symbol table info available.
> #21 0x28d038c4 in ?? ()
> No symbol table info available.
> #22 0xbf6eb6d8 in ?? ()
> No symbol table info available.
> #23 0x28d02eb5 in ?? ()
> No symbol table info available.
> #24 0x0875f9d8 in ?? ()
> No symbol table info available.
> #25 0x08764550 in ?? ()
> No symbol table info available.
> #26 0x08371700 in ?? ()
> No symbol table info available.
> #27 0x00000000 in ?? ()
> No symbol table info available.
> #28 0x00000018 in ?? ()
> No symbol table info available.
> #29 0x0000001a in ?? ()
> No symbol table info available.
> #30 0xbf6eb6ac in ?? ()
> No symbol table info available.
> #31 0xbf6eb684 in ?? ()
> No symbol table info available.
> #32 0x08070f7f in x86_magic_trampoline (eax=141949400, ecx=141968720,
>     edx=137828096, esi=0, edi=24, ebx=26, code=0x8760f90 "\020j\200\b",
>     m=0xbf6eb684) at tramp-x86.c:123
>         reg = 8 '\b'
>         disp = 141949400
>         o = 0x18 <Error reading address 0x18: Bad address>
>         addr = 0x8761e10
>         __PRETTY_FUNCTION__ = "x86_magic_trampoline"
> Previous frame inner to this frame (corrupt stack?)
> (gdb)
> 
-- 

BSD# Project - Porting Mono to FreeBSD
http://forge.novell.com/modules/xfmod/project/?bsd-sharp



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