Mono crash when executing an extenal command
Tom McLaughlin
tmclaugh at sdf.lonestar.org
Mon Feb 28 06:39:35 GMT 2005
On Mon, 2005-02-28 at 00:48 -0500, Tom McLaughlin wrote:
> Hi, the backtrace listed at the end was collected on a -STABLE machine
> (20050219) using Mono 1.1.4[1]. Below is the C# code that caused it.
> It should just list the contents of the current directory. It does list
> them but crashes afterwards.
>
<snip>
Here's also a second backtrace that appears slightly different. This C#
better resembled that from the program where I first found the crash.
(You guys are going to love Mono and me after a while... Or the
opposite of that. ;) Thanks.
Tom
ls-exec_ProcessStartInfo.cs
---
using System.Diagnostics;
class T
{
static void Main()
{
ProcessStartInfo pi = new ProcessStartInfo ();
pi.FileName = "ls";
pi.RedirectStandardOutput = true;
pi.UseShellExecute = false;
pi.Arguments = "-al";
Process.Start (pi);
}
}
---
[tom at europe-monodev mono]$ mcs ls-exec_ProcessStartInfo.cs
[tom at europe-monodev mono]$ gdb /usr/local/bin/mono mono.core
GNU gdb 6.1.1 [FreeBSD]
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details.
This GDB was configured as "i386-marcel-freebsd"...
Core was generated by `mono'.
Program terminated with signal 6, Aborted.
Reading symbols from /usr/local/lib/libgthread-2.0.so.400...done.
Loaded symbols for /usr/local/lib/libgthread-2.0.so.400
Reading symbols from /usr/local/lib/libgmodule-2.0.so.400...done.
Loaded symbols for /usr/local/lib/libgmodule-2.0.so.400
Reading symbols from /usr/local/lib/libglib-2.0.so.400...done.
Loaded symbols for /usr/local/lib/libglib-2.0.so.400
Reading symbols from /usr/local/lib/libiconv.so.3...done.
Loaded symbols for /usr/local/lib/libiconv.so.3
Reading symbols from /lib/libm.so.3...done.
Loaded symbols for /lib/libm.so.3
Reading symbols from /usr/lib/libpthread.so.1...done.
Loaded symbols for /usr/lib/libpthread.so.1
Reading symbols from /lib/libc.so.5...done.
Loaded symbols for /lib/libc.so.5
Reading symbols from /usr/local/lib/libintl.so.6...done.
Loaded symbols for /usr/local/lib/libintl.so.6
Reading symbols from /libexec/ld-elf.so.1...done.
Loaded symbols for /libexec/ld-elf.so.1
#0 0x2836a3cb in kse_thr_interrupt () at kse_thr_interrupt.S:2
2 kse_thr_interrupt.S: No such file or directory.
in kse_thr_interrupt.S
(gdb) bt full
#0 0x2836a3cb in kse_thr_interrupt () at kse_thr_interrupt.S:2
No locals.
#1 0x2835adde in _thr_sig_add (pthread=0x81b0000, sig=6, info=0x0)
at /usr/src/lib/libpthread/thread/thr_sig.c:974
siginfo = {si_signo = 136715168, si_errno = 16777224,
si_code = 674635894, si_pid = 674682044, si_uid = 136735360,
si_status = -1077943988, si_addr = 0x2835c8c7, si_value = {
sigval_int = 672944208, sigval_ptr = 0x281c5050}, si_band =
135962676,
__spare__ = {-1077943988, 674613305, 1, 136735360, 672944208,
672895960,
674673066}}
kmbx = (struct kse_mailbox *) 0x0
curthread = (struct pthread *) 0x1
restart = 0
suppress_handler = 0
fromproc = 0
sigfunc = (__sighandler_t *) 0
#2 0x2835b1f5 in _thr_sig_send (pthread=0x81b0000, sig=6)
at /usr/src/lib/libpthread/thread/thr_sig.c:1106
curthread = (struct pthread *) 0x81b0000
kmbx = (struct kse_mailbox *) 0x0
#3 0x2835528d in _pthread_kill (pthread=0x81b0000, sig=6)
at /usr/src/lib/libpthread/thread/thr_kill.c:60
curthread = (struct pthread *) 0x81b0000
ret = 0
#4 0x28354c5c in _raise (sig=1)
at /usr/src/lib/libpthread/thread/thr_raise.c:46
ret = -1077943808
#5 0x28425b67 in abort () at /usr/src/lib/libc/stdlib/abort.c:69
act = {__sigaction_u = {__sa_handler = 0x1, __sa_sigaction =
0x1},
sa_flags = 672925696, sa_mask = {__bits = {4294967263, 4294967295,
4294967295, 4294967295}}}
#6 0x281f90af in g_logv () from /usr/local/lib/libglib-2.0.so.400
No symbol table info available.
#7 0x281f914d in g_log () from /usr/local/lib/libglib-2.0.so.400
No symbol table info available.
#8 0x080e8b2a in WaitForSingleObjectEx (handle=0x1e4f, timeout=500,
alertable=0) at wait.c:70
ret = 135133339
waited = 1
abstime = {tv_sec = 12260, tv_nsec = 12348}
thr_ret = 382
apc_pending = 0
current_thread = 0x1e42
__PRETTY_FUNCTION__ = "WaitForSingleObjectEx"
#9 0x080df8d6 in CreateProcess (appname=0x8, cmdline=0x81e8fb4,
process_attrs=0x0, thread_attrs=0x0, inherit_handles=1,
create_flags=1024,
new_environ=0x0, cwd=0x0, startup=0xbfbfe7f8,
process_info=0xbfbfe7e8)
at processes.c:437
cmd = (gchar *) 0x82b8a10 "'/bin/ls'"
prog = (gchar *) 0x82b8a90 "/bin/ls"
full_prog = (gchar *) 0x82b8ac0 "'/bin/ls' -al"
args = (gchar *) 0x82b8a80 "-al"
args_after_prog = (gchar *) 0x82b8a80 "-al"
dir = (gchar *) 0x82b7840 "/home/tom/projects/mono"
env = 12348
stored_dir = 11244
stored_prog = 12260
i = 8
ret = 1
stdin_handle = 0xbfbfe7e8
stdout_handle = 0x8
stderr_handle = 0x1
pid = 26548
tid = 0
process_handle = 0x1e4f
thread_handle = 0x1e50
process_handle_data = (struct _WapiHandle_process *) 0xbfbfe790
#10 0x080b764c in ves_icall_System_Diagnostics_Process_Start_internal (
appname=0x81e8fc0, cmd=0x81e8fa8, dirname=0x81e3e50,
stdin_handle=0x17e,
stdout_handle=0x17e, stderr_handle=0x17e, process_info=0xbfbfe910)
at process.c:847
ret = 8
dir = (gunichar2 *) 0x1
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 = 0x8, hStdError = 0x2}
procinfo = {hProcess = 0x1e4f, hThread = 0x1e50, dwProcessId =
26548,
dwThreadId = 0}
shell_path = (gunichar2 *) 0x82b77c0
env_vars = (gchar *) 0x0
free_shell_path = 382
newcmd = (gchar *) 0xbfbfe910 ""
tmp = (gchar *) 0x81e7f30 "hn\033\b"
#11 0x2863a336 in ?? ()
No symbol table info available.
#12 0x081e8fc0 in ?? ()
No symbol table info available.
#13 0x081e8fa8 in ?? ()
No symbol table info available.
#14 0x081e3e50 in ?? ()
No symbol table info available.
#15 0x00000000 in ?? ()
No symbol table info available.
#16 0x00000008 in ?? ()
No symbol table info available.
#17 0x00000002 in ?? ()
No symbol table info available.
#18 0xbfbfe910 in ?? ()
No symbol table info available.
#19 0x081a7200 in ?? ()
No symbol table info available.
#20 0x081a71e8 in ?? ()
No symbol table info available.
#21 0x08299f40 in ?? ()
No symbol table info available.
#22 0x081e8fc0 in ?? ()
No symbol table info available.
#23 0x08272fa0 in ?? ()
No symbol table info available.
#24 0x081e7f30 in ?? ()
No symbol table info available.
#25 0xbfbfe8a4 in ?? ()
No symbol table info available.
#26 0x2863a304 in ?? ()
No symbol table info available.
#27 0xbfbfe93c in ?? ()
No symbol table info available.
#28 0x286397c5 in ?? ()
No symbol table info available.
#29 0x081e8fc0 in ?? ()
No symbol table info available.
#30 0x081e8fa8 in ?? ()
No symbol table info available.
#31 0x081e3e50 in ?? ()
No symbol table info available.
#32 0x00000000 in ?? ()
No symbol table info available.
#33 0x00000008 in ?? ()
No symbol table info available.
#34 0x00000002 in ?? ()
No symbol table info available.
#35 0xbfbfe910 in ?? ()
No symbol table info available.
#36 0xbfbfe8e8 in ?? ()
No symbol table info available.
#37 0x08070f7f in x86_magic_trampoline (eax=136220608, ecx=136220584,
edx=136199760, esi=0, edi=8, ebx=2, code=0x81e7f30 "hn\033\b",
m=0xbfbfe8e8) at tramp-x86.c:123
reg = 8 '\b'
disp = 136220608
o = 0x8 <Address 0x8 out of bounds>
addr = 0x8272fa0
__PRETTY_FUNCTION__ = "x86_magic_trampoline"
Previous frame inner to this frame (corrupt stack?)
(gdb)
--
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