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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 17055] - illegal memory reference on exit of Apache2.0.44/mod_ssl ;win32
Date Sun, 23 Feb 2003 01:54:21 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=17055

illegal memory reference on exit of Apache2.0.44/mod_ssl ;win32





------- Additional Comments From towerofpower@operamail.com  2003-02-23 01:54 -------
---------------readwrite.c---------------


else {
        if (!thefile->pipe) {
            apr_off_t offset = 0;
            apr_status_t rc;
            if (thefile->append) {
                /* apr_file_lock will mutex the file across processes.
                 * The call to apr_thread_mutex_lock is added to avoid
                 * a race condition between LockFile and WriteFile 
                 * that occasionally leads to deadlocked threads.
                 */
                apr_thread_mutex_lock(thefile->mutex);
------->>>>     rc = apr_file_lock(thefile, APR_FLOCK_EXCLUSIVE);
                if (rc != APR_SUCCESS) {
                    apr_thread_mutex_unlock(thefile->mutex);
                    return rc;
                }
                rc = apr_file_seek(thefile, APR_END, &offset);
                if (rc != APR_SUCCESS) {
                    apr_thread_mutex_unlock(thefile->mutex);
                    return rc;
                }
            }
            if (thefile->pOverlapped) {
                thefile->pOverlapped->Offset     = (DWORD)thefile->filePtr;
                thefile->pOverlapped->OffsetHigh = (DWORD)(thefile->filePtr >>

32);
            }
            rv = WriteFile(thefile->filehand, buf, *nbytes, &bwrote,
                           thefile->pOverlapped);
            if (thefile->append) {
                apr_file_unlock(thefile);
                apr_thread_mutex_unlock(thefile->mutex);
            }
        }




---------------readwrite.c disassembly---------------

{
        if (!thefile->pipe) {
6EEC7415  mov         edx,dword ptr [thefile] 
6EEC7418  movzx       eax,byte ptr [edx+8] 
6EEC741C  test        eax,eax 
6EEC741E  jne         apr_file_write+308h (6EEC7511h) 
            apr_off_t offset = 0;
6EEC7424  mov         dword ptr [offset],0 
6EEC742B  mov         dword ptr [ebp-34h],0 
            apr_status_t rc;
            if (thefile->append) {
6EEC7432  mov         ecx,dword ptr [thefile] 
6EEC7435  cmp         dword ptr [ecx+34h],0 
6EEC7439  je          apr_file_write+292h (6EEC749Bh) 
                /* apr_file_lock will mutex the file across processes.
                 * The call to apr_thread_mutex_lock is added to avoid
                 * a race condition between LockFile and WriteFile 
                 * that occasionally leads to deadlocked threads.
                 */
                apr_thread_mutex_lock(thefile->mutex);
6EEC743B  mov         edx,dword ptr [thefile] 
6EEC743E  mov         eax,dword ptr [edx+50h] 
6EEC7441  push        eax  
6EEC7442  call        apr_thread_mutex_lock (6EEC8835h) 
                rc = apr_file_lock(thefile, APR_FLOCK_EXCLUSIVE);

------->>>>

86EEC7447  push        2    

<<<<-------

6EEC7449  mov         ecx,dword ptr [thefile] 
6EEC744C  push        ecx  
6EEC744D  call        apr_file_lock (6EEC54B0h) 
6EEC7452  mov         dword ptr [rc],eax 
                if (rc != APR_SUCCESS) {
6EEC7455  cmp         dword ptr [rc],0 
6EEC7459  je          apr_file_write+266h (6EEC746Fh) 
                    apr_thread_mutex_unlock(thefile->mutex);
6EEC745B  mov         edx,dword ptr [thefile] 
6EEC745E  mov         eax,dword ptr [edx+50h] 
6EEC7461  push        eax  
6EEC7462  call        apr_thread_mutex_unlock (6EEC894Ch) 
                    return rc;
6EEC7467  mov         eax,dword ptr [rc] 
6EEC746A  jmp         6EEC766A 
                }
                rc = apr_file_seek(thefile, APR_END, &offset);
6EEC746F  lea         ecx,[offset] 
6EEC7472  push        ecx  
6EEC7473  push        2    
6EEC7475  mov         edx,dword ptr [thefile] 
6EEC7478  push        edx  
6EEC7479  call        apr_file_seek (6EEC79D0h) 
6EEC747E  mov         dword ptr [rc],eax 
                if (rc != APR_SUCCESS) {
6EEC7481  cmp         dword ptr [rc],0 
6EEC7485  je          apr_file_write+292h (6EEC749Bh) 
                    apr_thread_mutex_unlock(thefile->mutex);
6EEC7487  mov         eax,dword ptr [thefile] 
6EEC748A  mov         ecx,dword ptr [eax+50h] 
6EEC748D  push        ecx  
6EEC748E  call        apr_thread_mutex_unlock (6EEC894Ch) 
                    return rc;
6EEC7493  mov         eax,dword ptr [rc] 
6EEC7496  jmp         6EEC766A 
                }
            }
            if (thefile->pOverlapped) {
6EEC749B  mov         edx,dword ptr [thefile] 
6EEC749E  cmp         dword ptr [edx+0Ch],0 
6EEC74A2  je          apr_file_write+2C3h (6EEC74CCh) 
                thefile->pOverlapped->Offset     = (DWORD)thefile->filePtr;
6EEC74A4  mov         eax,dword ptr [thefile] 
6EEC74A7  mov         ecx,dword ptr [eax+48h] 
6EEC74AA  mov         edx,dword ptr [thefile] 
6EEC74AD  mov         eax,dword ptr [edx+0Ch] 
6EEC74B0  mov         dword ptr [eax+8],ecx 
                thefile->pOverlapped->OffsetHigh = (DWORD)(thefile->filePtr >>

32);
6EEC74B3  mov         ecx,dword ptr [thefile] 
6EEC74B6  mov         eax,dword ptr [ecx+48h] 
6EEC74B9  mov         edx,dword ptr [ecx+4Ch] 
6EEC74BC  mov         cl,20h 
6EEC74BE  call        _allshr (6EEDB2B0h) 
6EEC74C3  mov         edx,dword ptr [thefile] 
6EEC74C6  mov         ecx,dword ptr [edx+0Ch] 
6EEC74C9  mov         dword ptr [ecx+0Ch],eax 
            }

-------------------------------------------------------------------------


Name		Value 		Type
rc		35		int
+thefile	0x00459128	apr_file_t *
+thefile->mutex	0x004591a0	apr_thread_mutex_t *

Name		Value 		Type
offset		0		__int64
rc		35		int
+thefile	0x00459128	apr_file_t *
buf		0x0006dd20	const void *
+nbytes		0x0006dd08	unsigned int *
rv		1876031935	int
bwrote		458120		unsigned long


-------------------------------------------------------------------------


 	NTDLL.DLL!77f85c41() 	
 	NTDLL.DLL!77f85bd1() 	
>	libapr.dll!apr_file_write(apr_file_t * thefile=0x00459128, const void * 
buf=0x0006dd20, unsigned int * nbytes=0x0006dd08)  Line 316	C
 	libapr.dll!apr_file_puts(const char * str=0x0006dd20, apr_file_t * 
thefile=0x00459128)  Line 441	C
 	libhttpd.dll!log_error_core(const char * file=0x6fd1f9c0, int line=117, 
int level=4, int status=720006, const server_rec * s=0x00473868, const 
request_rec * r=0x00000000, apr_pool_t * pool=0x00000000, const char * 
fmt=0x6fd1f99c, char * args=0x0006fd88)  Line 543	C
 	libhttpd.dll!ap_log_error(const char * file=0x6fd1f9c0, int line=117, 
int level=4, int status=720006, const server_rec * s=0x00473868, const char * 
fmt=0x6fd1f99c, ...)  Line 561 + 0x25	C
 	mod_ssl.so!ssl_mutex_on(server_rec * s=0x00473868)  Line 118 + 0x1c
	C
 	mod_ssl.so!ssl_scache_dbm_remove(server_rec * s=0x00473868, unsigned 
char * id=0x004f4458, int idlen=32)  Line 292 + 0x9	C
 	mod_ssl.so!ssl_scache_remove(server_rec * s=0x00473868, unsigned char * 
id=0x004f4458, int idlen=32)  Line 154 + 0x11	C
 	mod_ssl.so!ssl_callback_DelSessionCacheEntry(ssl_ctx_st * 
ctx=0x004b7290, ssl_session_st * session=0x004f4410)  Line 1722 + 0x11	C
 	ssleay32.dll!timeout(ssl_session_st * s=0x004f4410, timeout_param_st * 
p=0x0006fe60)  Line 664 + 0x12	C
 	ssleay32.dll!timeout_LHASH_DOALL_ARG(const void * arg1=0x004f4410, void 
* arg2=0x0006fe60)  Line 669 + 0x1f	C
 	libeay32.dll!doall_util_fn(lhash_st * lh=0x004b7430, int use_arg=1, 
void (const void *)* func=0x00000000, void (const void *, void *)* 
func_arg=0x1001b40a, void * arg=0x0006fe60)  Line 287 + 0xd	C
 	libeay32.dll!lh_doall_arg(lhash_st * lh=0x004b7430, void (const void *, 
void *)* func=0x1001b40a, void * arg=0x0006fe60)  Line 302 + 0x15	C
 	ssleay32.dll!SSL_CTX_flush_sessions(ssl_ctx_st * s=0x004b7290, long 
t=0)  Line 683 + 0x12	C
 	ssleay32.dll!SSL_CTX_free(ssl_ctx_st * a=0x004b7290)  Line 1425 + 0xb
	C
 	mod_ssl.so!ssl_init_ctx_cleanup(modssl_ctx_t * mctx=0x004c2550)  Line 
1197 + 0x15	C
 	mod_ssl.so!ssl_init_ctx_cleanup_server(modssl_ctx_t * mctx=0x004c2550)  
Line 1213 + 0x9	C
 	mod_ssl.so!ssl_init_ModuleKill(void * data=0x0042c178)  Line 1249 + 0xc
	C
 	libapr.dll!run_cleanups(cleanup_t * * cref=0x0042a2f0)  Line 1976 + 0xd
	C
 	libapr.dll!apr_pool_destroy(apr_pool_t * pool=0x0042a2e0)  Line 755 + 
0xc	C
 	libapr.dll!apr_pool_destroy(apr_pool_t * pool=0x004282b0)  Line 752 + 
0xc	C
 	Apache.exe!destroy_and_exit_process(process_rec * process=0x00428340, 
int process_exit_value=0)  Line 247	C
 	Apache.exe!main(int argc=5, const char * const * argv=0x00422800)  Line 
658 + 0xb	C
 	Apache.exe!mainCRTStartup()  Line 400 + 0x11	C
 	KERNEL32.DLL!77e9ca90() 	



-------------------------------------------------------------------------



'Apache.exe': Loaded 'E:\Apache2\bin\Apache.exe', Symbols loaded.
'Apache.exe': Loaded 'C:\WINNT\system32\NTDLL.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'E:\Apache2\bin\libapr.dll', Symbols loaded.
'Apache.exe': Loaded 'C:\WINNT\system32\ws2_32.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\msvcrt.dll', No symbols loaded.
'Apache.exe': Loaded 'C:\WINNT\system32\KERNEL32.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\ADVAPI32.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\rpcrt4.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\ws2help.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\mswsock.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\USER32.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\GDI32.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\dnsapi.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\wsock32.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\msvcr70d.dll', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\bin\libaprutil.dll', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\bin\libapriconv.dll', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\bin\libhttpd.dll', Symbols loaded.
'Apache.exe': Loaded 'C:\WINNT\system32\SHELL32.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\shlwapi.dll', No symbols loaded.
'Apache.exe': Loaded 'C:\WINNT\system32\comctl32.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\msafd.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\wshtcpip.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\rsaenh.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\OLE32.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\USERENV.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\CRYPT32.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\msasn1.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_access.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_actions.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_alias.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_asis.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_auth.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_autoindex.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_cgi.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_dir.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_env.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_imap.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_include.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_info.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_isapi.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_log_config.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_mime.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_negotiation.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_setenvif.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_status.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_userdir.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\modules\mod_ssl.so', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\bin\ssleay32.dll', Symbols loaded.
'Apache.exe': Loaded 'E:\Apache2\bin\libeay32.dll', Symbols loaded.
'Apache.exe': Loaded 'C:\WINNT\system32\RNR20.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\IPHLPAPI.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\icmp.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\mprapi.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\samlib.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\NETAPI32.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\secur32.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\netrap.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\WLDAP32.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\OLEAUT32.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\activeds.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\adsldpc.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\rtutils.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\SETUPAPI.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\RASAPI32.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\RASMAN.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\tapi32.dll', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\DHCPCSVC.DLL', Cannot find or open a 
required DBG file.
'Apache.exe': Loaded 'C:\WINNT\system32\winrnr.dll', Cannot find or open a 
required DBG file.
The thread 'Win32 Thread' (0x600) has exited with code 0 (0x0).
Unhandled exception at 0x77f85c41 in Apache.exe: 0xC0000005: Access violation 
writing location 0x00000010.

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