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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 51059] New: Some httpd process hang on a strange stack
Date Thu, 14 Apr 2011 03:49:09 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=51059

           Summary: Some httpd process hang on a strange stack
           Product: Apache httpd-2
           Version: 2.2.15
          Platform: Sun
        OS/Version: Solaris
            Status: NEW
          Severity: normal
          Priority: P2
         Component: worker
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: zhannk@gmail.com


After days of running, apache fails in handling new requests.  By checking all
httpd processes ,we found some httpd(s) were created very early and handles no
request (we set MaxRequestsPerChild to 10000) with the stack trace as
below(almost all threads are in lwp_park status). We have no idea what would be
the possible reason, the underlying OS is: SunOS Portal1new 5.10
Generic_141444-09 sun4v sparc SUNW,SPARC-Enterprise-T2000

Portal1new% pstack 17315
17315:  /data2/aiobs6/Borland/bdp81/bin/../modules/apache/bin/httpd -k start -
-----------------  lwp# 1 / thread# 1  --------------------
 fefcc740 lwp_wait (3, ffbff0d4)
 fefc55f0 _thrp_join (3, 0, ffbff13c, 1, ffbff0d4, ff035800) + 34
 ff2100a0 apr_thread_join (ffbff1ac, 13ae78, 7, 0, 99988, 74d28) + 18
 0005c750 join_workers (13b0f8, 2fad00, 5c228, 13ac40, 13abb0, 0) + 158
 0005cbe4 child_main (6, 1, 0, 13ac40, 2fad00, 1) + 3a4
 0005cd2c make_child (99988, 6, 7, 0, 0, 14) + f4
 0005d3d8 perform_idle_server_maintenance (d, 1, 40c, 0, 1, 0) + 510
 0005d69c server_main_loop (0, 6dd, 7, 0, 13, 14) + 234
 0005da0c ap_mpm_run (97a90, c5b48, 99988, 9ba88, 919f0, 0) + 324
 00029f00 main     (7, ffbff614, ffbff634, 88c00, ff170100, 0) + b08
 00028840 _start   (0, 0, 0, 0, 0, 0) + 108
-----------------  lwp# 3 / thread# 3  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (a187c8, 0, d9148, fe689e94, ff0303a8, 2690) + 1c
 fe689c0c virtual_file_ex (9b26f0, fdd7b4f0, fe68917c, 2, 4da54ca9, 8000) + 610
 fe689e94 virtual_chdir (fdd7b4f0, 9b1bc0, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (565d18, fe689e54, 9b1bc0, 9b2370, 1, 0) + 80
 fe68f074 php_execute_script (fdd7baf8, 9b1bc0, 6, 0, 564928, 0) + 31c
 fe76e904 php_handler (564928, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (564928, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (564928, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (564928, 4, 564928, 564928, 5656f0, 0) + 5c
 00051bb0 ap_process_http_connection (55dc28, 55d978, 55d978, 180, 0, 564928) +
58
 0004cc00 ap_run_process_connection (55dc28, 55d978, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (55dc28, 55d978, 55d978, 180, 55dc20, 561db8) +
68
 0005b704 process_socket (55d930, 55d978, 6, 0, 561db8, 180) + 6c
 0005c074 worker_thread (13ae78, 2e6058, 0, 0, 6, 0) + 20c
 ff20fe10 dummy_worker (13ae78, fdd7c000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 4 / thread# 4  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef5640c malloc   (10, 1, d9fd8, fe688d9c, ff0303a8, ff03a518) + 44
 fe688af4 allocate_new_resource (3296d4, 4, 4, 0, 174370, 110f28) + 10
 fe688d9c ts_resource_ex (0, 4, 66006c30, 166030, ff00, 2) + c8
 fe76e5e4 php_handler (872e60, 0, 136c00, 165680, ffffffff, 0) + 18
 00043968 ap_run_handler (872e60, 3b3b3b3b, 66006c30, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (872e60, 0, 136c00, 165680, 136c00, 0) + 124
 0005523c ap_process_request (872e60, 4, 872e60, 872e60, 873c28, 0) + 5c
 00051bb0 ap_process_http_connection (8695d8, 869328, 869328, 181, 0, 872e60) +
58
 0004cc00 ap_run_process_connection (8695d8, 869328, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (8695d8, 869328, 869328, 181, 8695d0, 86dec8) +
68
 0005b704 process_socket (8692e0, 869328, 6, 1, 86dec8, 181) + 6c
 0005c074 worker_thread (13ae98, 2e6070, 0, 0, 6, 1) + 20c
 ff20fe10 dummy_worker (13ae98, ebffc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 5 / thread# 5  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (1158840, 0, d9148, fe689e94, ff0303a8, 3c10) + 1c
 fe689c0c virtual_file_ex (d56ed8, ebefb4f0, fe68917c, 2, 4da54d58, 8000) + 610
 fe689e94 virtual_chdir (ebefb4f0, c90580, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (3105a0, fe689e54, c90580, d56598, 1, 0) + 80
 fe68f074 php_execute_script (ebefbaf8, c90580, 6, 0, 30ef50, 0) + 31c
 fe76e904 php_handler (30ef50, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (30ef50, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (30ef50, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (30ef50, 4, 30ef50, 30ef50, 30fd18, 0) + 5c
 00051bb0 ap_process_http_connection (2fb0d8, 2fae28, 2fae28, 182, 0, 30ef50) +
58
 0004cc00 ap_run_process_connection (2fb0d8, 2fae28, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (2fb0d8, 2fae28, 2fae28, 182, 2fb0d0, 2fcde8) +
68
 0005b704 process_socket (2fade0, 2fae28, 6, 2, 2fcde8, 182) + 6c
 0005c074 worker_thread (13aeb8, 2e6058, 0, 0, 6, 2) + 20c
 ff20fe10 dummy_worker (13aeb8, ebefc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 6 / thread# 6  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (7a9a50, 0, d9148, fe689e94, ff0303a8, 21ee) + 1c
 fe689c0c virtual_file_ex (90ad60, ebdfb4f0, fe68917c, 2, 4da54ccf, 8000) + 610
 fe689e94 virtual_chdir (ebdfb4f0, 8fb9d0, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (80c078, fe689e54, 8fb9d0, 90aa70, 1, 0) + 80
 fe68f074 php_execute_script (ebdfbaf8, 8fb9d0, 6, 0, 80aac8, 0) + 31c
 fe76e904 php_handler (80aac8, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (80aac8, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (80aac8, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (80aac8, 4, 80aac8, 80aac8, 80b890, 0) + 5c
 00051bb0 ap_process_http_connection (6d4790, 6d44e0, 6d44e0, 183, 0, 80aac8) +
58
 0004cc00 ap_run_process_connection (6d4790, 6d44e0, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (6d4790, 6d44e0, 6d44e0, 183, 6d4788, 6d7e28) +
68
 0005b704 process_socket (6d4498, 6d44e0, 6, 3, 6d7e28, 183) + 6c
 0005c074 worker_thread (13aed8, 2e6070, 0, 0, 6, 3) + 20c
 ff20fe10 dummy_worker (13aed8, ebdfc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 7 / thread# 7  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (dc28d8, 0, d9148, fe689e94, ff0303a8, 220b) + 1c
 fe689c0c virtual_file_ex (8eb940, ebcfb4f0, fe68917c, 2, 4da54d31, 8000) + 610
 fe689e94 virtual_chdir (ebcfb4f0, 8e7ac0, ffffffff, 0, 73, 0) + 40
 fe689f2c virtual_chdir_file (6ea7c8, fe689e54, 8e7ac0, 809f38, 1, 0) + 80
 fe68f074 php_execute_script (ebcfbaf8, 8e7ac0, 6, 0, 10ca0c8, 0) + 31c
 fe76e904 php_handler (10ca0c8, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (10ca0c8, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (10ca0c8, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (10ca0c8, 4, 10ca0c8, 10ca0c8, 10cae90, 0) + 5c
 00051bb0 ap_process_http_connection (6de938, 6de688, 6de688, 184, 0, 10ca0c8)
+ 58
 0004cc00 ap_run_process_connection (6de938, 6de688, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (6de938, 6de688, 6de688, 184, 6de930, 6e72f8) +
68
 0005b704 process_socket (6de640, 6de688, 6, 4, 6e72f8, 184) + 6c
 0005c074 worker_thread (13aef8, 2e6058, 0, 0, 6, 4) + 20c
 ff20fe10 dummy_worker (13aef8, ebcfc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 8 / thread# 8  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (1266000, 0, d9148, fe689e94, ff0303a8, 28c2) + 1c
 fe689c0c virtual_file_ex (fa4240, ebbfb4f0, fe68917c, 2, 4da54d3e, 8000) + 610
 fe689e94 virtual_chdir (ebbfb4f0, 12e2e58, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (9885c0, fe689e54, 12e2e58, decb80, 1, 0) + 80
 fe68f074 php_execute_script (ebbfbaf8, 12e2e58, 6, 0, 987040, 0) + 31c
 fe76e904 php_handler (987040, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (987040, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (987040, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (987040, 4, 987040, 987040, 987e08, 0) + 5c
 00051bb0 ap_process_http_connection (9829f0, 982740, 982740, 185, 0, 987040) +
58
 0004cc00 ap_run_process_connection (9829f0, 982740, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (9829f0, 982740, 982740, 185, 9829e8, 8eda00) +
68
 0005b704 process_socket (9826f8, 982740, 6, 5, 8eda00, 185) + 6c
 0005c074 worker_thread (13af18, 2e6070, 0, 0, 6, 5) + 20c
 ff20fe10 dummy_worker (13af18, ebbfc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 9 / thread# 9  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (d6e520, 0, d9148, fe689e94, ff0303a8, 224a) + 1c
 fe689c0c virtual_file_ex (7c51a0, ebafb4f0, fe68917c, 2, 4da54cae, 8000) + 610
 fe689e94 virtual_chdir (ebafb4f0, 720600, ffffffff, 0, 73, 0) + 40
 fe689f2c virtual_chdir_file (11b66e0, fe689e54, 720600, 720c18, 1, 0) + 80
 fe68f074 php_execute_script (ebafbaf8, 720600, 6, 0, 11b5240, 0) + 31c
 fe76e904 php_handler (11b5240, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (11b5240, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (11b5240, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (11b5240, 4, 11b5240, 11b5240, 11b6008, 0) + 5c
 00051bb0 ap_process_http_connection (65af48, 65ac98, 65ac98, 186, 0, 11b5240)
+ 58
 0004cc00 ap_run_process_connection (65af48, 65ac98, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (65af48, 65ac98, 65ac98, 186, 65af40, 65cc58) +
68
 0005b704 process_socket (65ac50, 65ac98, 6, 6, 65cc58, 186) + 6c
 0005c074 worker_thread (13af38, 2e6058, 0, 0, 6, 6) + 20c
 ff20fe10 dummy_worker (13af38, ebafc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 10 / thread# 10  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (9e5588, 0, d9148, fe689e94, ff0303a8, a85) + 1c
 fe689c0c virtual_file_ex (990458, eb9fb4f0, fe68917c, 2, 4da54c92, 8000) + 610
 fe689e94 virtual_chdir (eb9fb4f0, 8efd40, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (1008fe0, fe689e54, 8efd40, 9901f8, 1, 0) + 80
 fe68f074 php_execute_script (eb9fbaf8, 8efd40, 6, 0, 1007c70, 0) + 31c
 fe76e904 php_handler (1007c70, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (1007c70, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (1007c70, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (1007c70, 4, 1007c70, 1007c70, 1008a38, 0) + 5c
 00051bb0 ap_process_http_connection (e81c88, e819d8, e819d8, 187, 0, 1007c70)
+ 58
 0004cc00 ap_run_process_connection (e81c88, e819d8, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (e81c88, e819d8, e819d8, 187, e81c80, e9ada0) +
68
 0005b704 process_socket (e81990, e819d8, 6, 7, e9ada0, 187) + 6c
 0005c074 worker_thread (13af58, 2e6070, 0, 0, 6, 7) + 20c
 ff20fe10 dummy_worker (13af58, eb9fc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 11 / thread# 11  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (110ada0, 0, d9148, fe689e94, ff0303a8, 21b6) + 1c
 fe689c0c virtual_file_ex (a438f0, eb8fb4f0, fe68917c, 2, 4da54cb0, 8000) + 610
 fe689e94 virtual_chdir (eb8fb4f0, a1eba0, ffffffff, 0, 73, 0) + 40
 fe689f2c virtual_chdir_file (11140b8, fe689e54, a1eba0, a435b8, 1, 0) + 80
 fe68f074 php_execute_script (eb8fbaf8, a1eba0, 6, 0, 1112c10, 0) + 31c
 fe76e904 php_handler (1112c10, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (1112c10, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (1112c10, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (1112c10, 4, 1112c10, 1112c10, 11139d8, 0) + 5c
 00051bb0 ap_process_http_connection (4bfb50, 4bf8a0, 4bf8a0, 188, 0, 1112c10)
+ 58
 0004cc00 ap_run_process_connection (4bfb50, 4bf8a0, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (4bfb50, 4bf8a0, 4bf8a0, 188, 4bfb48, 4c3a40) +
68
 0005b704 process_socket (4bf858, 4bf8a0, 6, 8, 4c3a40, 188) + 6c
 0005c074 worker_thread (13af78, 2e6058, 0, 0, 6, 8) + 20c
 ff20fe10 dummy_worker (13af78, eb8fc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 12 / thread# 12  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef5640c malloc   (60, 1, d9fd8, fe689e94, ff0303a8, ff03a518) + 44
 fe689b7c virtual_file_ex (722180, eb7fb4f0, fe68917c, 2, 4da54c78, 8000) + 580
 fe689e94 virtual_chdir (eb7fb4f0, 70aa70, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (dbc378, fe689e54, 70aa70, 721f20, 1, 0) + 80
 fe68f074 php_execute_script (eb7fbaf8, 70aa70, 6, 0, dbaee8, 0) + 31c
 fe76e904 php_handler (dbaee8, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (dbaee8, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (dbaee8, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (dbaee8, 4, dbaee8, dbaee8, dbbcb0, 0) + 5c
 00051bb0 ap_process_http_connection (385b78, 3858c8, 3858c8, 189, 0, dbaee8) +
58
 0004cc00 ap_run_process_connection (385b78, 3858c8, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (385b78, 3858c8, 3858c8, 189, 385b70, 3897f0) +
68
 0005b704 process_socket (385880, 3858c8, 6, 9, 3897f0, 189) + 6c
 0005c074 worker_thread (13af98, 2e6070, 0, 0, 6, 9) + 20c
 ff20fe10 dummy_worker (13af98, eb7fc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 13 / thread# 13  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (113a9b0, 0, d9148, fe689e94, ff0303a8, 312a) + 1c
 fe689c0c virtual_file_ex (894d20, eb6fb4f0, fe68917c, 2, 4da54d7a, 8000) + 610
 fe689e94 virtual_chdir (eb6fb4f0, 3296c8, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (702f38, fe689e54, 3296c8, 11759d8, 1, 0) + 80
 fe68f074 php_execute_script (eb6fbaf8, 3296c8, 6, 0, 701af8, 0) + 31c
 fe76e904 php_handler (701af8, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (701af8, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (701af8, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (701af8, 4, 701af8, 701af8, 7028c0, 0) + 5c
 00051bb0 ap_process_http_connection (6f7b58, 6f78a8, 6f78a8, 18a, 0, 701af8) +
58
 0004cc00 ap_run_process_connection (6f7b58, 6f78a8, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (6f7b58, 6f78a8, 6f78a8, 18a, 6f7b50, 6fac20) +
68
 0005b704 process_socket (6f7860, 6f78a8, 6, a, 6fac20, 18a) + 6c
 0005c074 worker_thread (13afb8, 2e6058, 0, 0, 6, a) + 20c
 ff20fe10 dummy_worker (13afb8, eb6fc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 14 / thread# 14  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (a64480, 0, d9148, fe689e94, ff0303a8, 3b58) + 1c
 fe689c0c virtual_file_ex (60d5d0, eb5fb4f0, fe68917c, 2, 4da54d88, 8000) + 610
 fe689e94 virtual_chdir (eb5fb4f0, 646e00, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (3af9e8, fe689e54, 646e00, 60d208, 1, 0) + 80
 fe68f074 php_execute_script (eb5fbaf8, 646e00, 6, 0, 3ae6a0, 0) + 31c
 fe76e904 php_handler (3ae6a0, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (3ae6a0, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (3ae6a0, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (3ae6a0, 4, 3ae6a0, 3ae6a0, 3af468, 0) + 5c
 00051bb0 ap_process_http_connection (3a8d08, 3a8a58, 3a8a58, 18b, 0, 3ae6a0) +
58
 0004cc00 ap_run_process_connection (3a8d08, 3a8a58, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (3a8d08, 3a8a58, 3a8a58, 18b, 3a8d00, 3ac5b0) +
68
 0005b704 process_socket (3a8a10, 3a8a58, 6, b, 3ac5b0, 18b) + 6c
 0005c074 worker_thread (13afd8, 2e6070, 0, 0, 6, b) + 20c
 ff20fe10 dummy_worker (13afd8, eb5fc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 15 / thread# 15  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (b50ce8, 0, d9148, fe689e94, ff0303a8, 1b47) + 1c
 fe689c0c virtual_file_ex (5ac318, eb4fb4f0, fe68917c, 2, 4da54ca6, 8000) + 610
 fe689e94 virtual_chdir (eb4fb4f0, 5a4848, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (1145a70, fe689e54, 5a4848, 5ac0b8, 1, 0) + 80
 fe68f074 php_execute_script (eb4fbaf8, 5a4848, 6, 0, 11444c0, 0) + 31c
 fe76e904 php_handler (11444c0, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (11444c0, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (11444c0, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (11444c0, 4, 11444c0, 11444c0, 1145288, 0) + 5c
 00051bb0 ap_process_http_connection (d3f300, d3f050, d3f050, 18c, 0, 11444c0)
+ 58
 0004cc00 ap_run_process_connection (d3f300, d3f050, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (d3f300, d3f050, d3f050, 18c, d3f2f8, d384a0) +
68
 0005b704 process_socket (d3f008, d3f050, 6, c, d384a0, 18c) + 6c
 0005c074 worker_thread (13aff8, 2e6058, 0, 0, 6, c) + 20c
 ff20fe10 dummy_worker (13aff8, eb4fc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 16 / thread# 16  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (6c0ac0, 0, d9148, fe689e94, ff0303a8, 3ee5) + 1c
 fe689c0c virtual_file_ex (505398, eb3fb4f0, fe68917c, 2, 4da54d55, 8000) + 610
 fe689e94 virtual_chdir (eb3fb4f0, 4fefd0, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (1265088, fe689e54, 4fefd0, 505138, 1, 0) + 80
 fe68f074 php_execute_script (eb3fbaf8, 4fefd0, 6, 0, 1263bb8, 0) + 31c
 fe76e904 php_handler (1263bb8, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (1263bb8, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (1263bb8, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (1263bb8, 4, 1263bb8, 1263bb8, 1264980, 0) + 5c
 00051bb0 ap_process_http_connection (773cf8, 773a48, 773a48, 18d, 0, 1263bb8)
+ 58
 0004cc00 ap_run_process_connection (773cf8, 773a48, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (773cf8, 773a48, 773a48, 18d, 773cf0, 778480) +
68
 0005b704 process_socket (773a00, 773a48, 6, d, 778480, 18d) + 6c
 0005c074 worker_thread (13b018, 2e6070, 0, 0, 6, d) + 20c
 ff20fe10 dummy_worker (13b018, eb3fc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 17 / thread# 17  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef5640c malloc   (2e, 1, d9fd8, fe68c10c, ff0303a8, ff03a518) + 44
 fef693dc strdup   (83a3b0, 0, fe83f84e, 9, 0, 457bc8) + c
 fe68c10c php_error_cb (1, 81c528, 90, fe896b9c, 3c14f0, fe896f5c) + e8
 fe6df6dc zend_error (1, fe83f820, 1e, 90, 81c528, 3b6bc0) + 3f8
 fefc8b4c __sighndlr (1d, 0, eb2f7be0, fe6d0304, 0, 0) + c
 fefbd1f8 call_user_handler (1d, 0, 12, fff7, fdec7a00, eb2f7be0) + 3b8
 fefbd3cc sigacthandler (1d, 0, eb2f7be0, fef56414, fdec7a00, fef56414) + 4c
 --- called from signal handler with signal 29 (SIGPROF) ---
 fef565c0 _malloc_unlocked (60, 30, 11738b8, 11b31e0, 12f1268, fe68a834) + 190
 fef56414 malloc   (60, 1, d9fd8, fe5a6f18, ff0303a8, ff03a518) + 4c
 fe68a834 virtual_stat (eb2f8040, eb2f8440, 3b6bc0, 0, 34, 0) + 3c
 fe5a6f18 ps_gc_files (1f, 5a0, eb2f8958, 3b6bc0, 80808080, 43c) + 108
 fe5a2e10 php_session_start (3b6bc0, 3b6bc0, 0, 8000, 7c00, 8000) + 85c
 fe5a5520 zif_session_start (0, 835998, 0, 0, 0, 3b6bc0) + 10
 fe7034f8 zend_do_fcall_common_helper_SPEC (eb2f8d30, 3b6bc0, 0, 0, fe896bf8,
0) + adc
 fe702950 execute  (834880, 3b6bc0, eb2f8f3c, 43e1d0, 90, fe70279c) + 1b4
 fe702c70 zend_do_fcall_common_helper_SPEC (eb2f8f50, 3b6bc0, 81d968, 81c658,
43e1d0, 1) + 254
 fe702950 execute  (81cd70, 3b6bc0, eb2f9174, 43e1d0, a8, fe70279c) + 1b4
 fe702c70 zend_do_fcall_common_helper_SPEC (eb2f91a0, 3b6bc0, 0, 0, eb2f93b4,
1) + 254
 fe702950 execute  (81bb00, 3b6bc0, eb2f93b4, eb2f93b0, 3c1508, fe896c50) + 1b4
 fe70b408 ZEND_INCLUDE_OR_EVAL_SPEC_CONST_HANDLER (eb2fb468, 3b6bc0, 81df20,
3c14f0, 0, eb2fb540) + 228
 fe702950 execute  (819d80, 3b6bc0, 6a, 3c14f0, eb2fb540, fe70279c) + 1b4
 fe6e02d8 zend_execute_scripts (8, 3b6bc0, 0, 3, fe896bf8, eb2fbaf8) + 114
 fe68f020 php_execute_script (eb2fbaf8, 0, 6, 0, 924fb0, 0) + 2c8
 fe76e904 php_handler (924fb0, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (924fb0, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (924fb0, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (924fb0, 4, 924fb0, 924fb0, 925d78, 0) + 5c
 00051bb0 ap_process_http_connection (91d0e0, 91ce30, 91ce30, 18e, 0, 924fb0) +
58
 0004cc00 ap_run_process_connection (91d0e0, 91ce30, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (91d0e0, 91ce30, 91ce30, 18e, 91d0d8, 9204a0) +
68
 0005b704 process_socket (91cde8, 91ce30, 6, e, 9204a0, 18e) + 6c
 0005c074 worker_thread (13b038, 2e6058, 0, 0, 6, e) + 20c
 ff20fe10 dummy_worker (13b038, eb2fc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 18 / thread# 18  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (1155de8, 0, d9148, fe689e94, ff0303a8, 1b45) + 1c
 fe689c0c virtual_file_ex (11f51f8, eb1fb4f0, fe68917c, 2, 4da54cab, 8000) +
610
 fe689e94 virtual_chdir (eb1fb4f0, 3436d8, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (648508, fe689e54, 3436d8, d69980, 1, 0) + 80
 fe68f074 php_execute_script (eb1fbaf8, 3436d8, 6, 0, 647148, 0) + 31c
 fe76e904 php_handler (647148, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (647148, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (647148, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (647148, 4, 647148, 647148, 647f10, 0) + 5c
 00051bb0 ap_process_http_connection (63f208, 63ef58, 63ef58, 18f, 0, 647148) +
58
 0004cc00 ap_run_process_connection (63f208, 63ef58, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (63f208, 63ef58, 63ef58, 18f, 63f200, 641c40) +
68
 0005b704 process_socket (63ef10, 63ef58, 6, f, 641c40, 18f) + 6c
 0005c074 worker_thread (13b058, 2e6070, 0, 0, 6, f) + 20c
 ff20fe10 dummy_worker (13b058, eb1fc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 19 / thread# 19  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (e65ac8, 0, d9148, fe689e94, ff0303a8, 1791) + 1c
 fe689c0c virtual_file_ex (c39368, eb0fb4f0, fe68917c, 2, 4da54c9d, 8000) + 610
 fe689e94 virtual_chdir (eb0fb4f0, c2f100, ffffffff, 0, 73, 0) + 40
 fe689f2c virtual_chdir_file (1207720, fe689e54, c2f100, c39030, 1, 0) + 80
 fe68f074 php_execute_script (eb0fbaf8, c2f100, 6, 0, ad4f38, 0) + 31c
 fe76e904 php_handler (ad4f38, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (ad4f38, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (ad4f38, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (ad4f38, 4, ad4f38, ad4f38, ad5d00, 0) + 5c
 00051bb0 ap_process_http_connection (30d200, 30cf50, 30cf50, 190, 0, ad4f38) +
58
 0004cc00 ap_run_process_connection (30d200, 30cf50, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (30d200, 30cf50, 30cf50, 190, 30d1f8, 310f18) +
68
 0005b704 process_socket (30cf08, 30cf50, 6, 10, 310f18, 190) + 6c
 0005c074 worker_thread (13b078, 2e6058, 0, 0, 6, 10) + 20c
 ff20fe10 dummy_worker (13b078, eb0fc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 20 / thread# 20  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (c7f210, 0, d9148, fe689e94, ff0303a8, 14f8) + 1c
 fe689c0c virtual_file_ex (aedf70, eaffb4f0, fe68917c, 2, 4da54c91, 8000) + 610
 fe689e94 virtual_chdir (eaffb4f0, ada400, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (6f6cb8, fe689e54, ada400, aedc80, 1, 0) + 80
 fe68f074 php_execute_script (eaffbaf8, ada400, 6, 0, 6f5898, 0) + 31c
 fe76e904 php_handler (6f5898, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (6f5898, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (6f5898, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (6f5898, 4, 6f5898, 6f5898, 6f6660, 0) + 5c
 00051bb0 ap_process_http_connection (6edea0, 6edbf0, 6edbf0, 191, 0, 6f5898) +
58
 0004cc00 ap_run_process_connection (6edea0, 6edbf0, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (6edea0, 6edbf0, 6edbf0, 191, 6ede98, 6f0a68) +
68
 0005b704 process_socket (6edba8, 6edbf0, 6, 11, 6f0a68, 191) + 6c
 0005c074 worker_thread (13b098, 2e6070, 0, 0, 6, 11) + 20c
 ff20fe10 dummy_worker (13b098, eaffc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 21 / thread# 21  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef57274 free     (11c41f0, 0, d9148, fe689e94, ff0303a8, 34dd) + 1c
 fe689c0c virtual_file_ex (3171b0, eaefb4f0, fe68917c, 2, 4da54cfa, 8000) + 610
 fe689e94 virtual_chdir (eaefb4f0, 2e6070, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (40ccb0, fe689e54, 2e6070, 316f30, 1, 0) + 80
 fe68f074 php_execute_script (eaefbaf8, 2e6070, 6, 0, 40b730, 0) + 31c
 fe76e904 php_handler (40b730, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (40b730, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (40b730, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (40b730, 4, 40b730, 40b730, 40c4f8, 0) + 5c
 00051bb0 ap_process_http_connection (301160, 300eb0, 300eb0, 192, 0, 40b730) +
58
 0004cc00 ap_run_process_connection (301160, 300eb0, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (301160, 300eb0, 300eb0, 192, 301158, 304e78) +
68
 0005b704 process_socket (300e68, 300eb0, 6, 12, 304e78, 192) + 6c
 0005c074 worker_thread (13b0b8, 2e6058, 0, 0, 6, 12) + 20c
 ff20fe10 dummy_worker (13b0b8, eaefc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 22 / thread# 22  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fef5640c malloc   (52, 1, d9fd8, fe689e94, ff0303a8, ff03a518) + 44
 fe689b7c virtual_file_ex (45dbf8, eadfb4f0, fe68917c, 2, 4da54c77, 8000) + 580
 fe689e94 virtual_chdir (eadfb4f0, 454b48, ffffffff, 0, 6e, 0) + 40
 fe689f2c virtual_chdir_file (fa6850, fe689e54, 454b48, 45d998, 1, 0) + 80
 fe68f074 php_execute_script (eadfbaf8, 454b48, 6, 0, fa5480, 0) + 31c
 fe76e904 php_handler (fa5480, 0, 1270e0, 165680, ffffffff, 0) + 338
 00043968 ap_run_handler (fa5480, 3b3b3b3b, 70687000, 166030, ff00, 2) + 50
 000442cc ap_invoke_handler (fa5480, 0, 1270e0, 165680, 1270e0, 0) + 124
 0005523c ap_process_request (fa5480, 4, fa5480, fa5480, fa6248, 0) + 5c
 00051bb0 ap_process_http_connection (dd4528, dd4278, dd4278, 193, 0, fa5480) +
58
 0004cc00 ap_run_process_connection (dd4528, dd4278, 6, 1663c8, fffffffe, 0) +
50
 0004d100 ap_process_connection (dd4528, dd4278, dd4278, 193, dd4520, dd7ff0) +
68
 0005b704 process_socket (dd4230, dd4278, 6, 13, dd7ff0, 193) + 6c
 0005c074 worker_thread (13b0d8, 2e6070, 0, 0, 6, 13) + 20c
 ff20fe10 dummy_worker (13b0d8, eadfc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)
-----------------  lwp# 23 / thread# 23  --------------------
 fefc8ac0 lwp_park (0, 0, 0)
 fefc2ad4 cond_wait_queue (13adf8, 13adc8, 0, 0, 1c00, 0) + 4c
 fefc301c cond_wait (13adf8, 13adc8, 1, 6, 96d00, 0) + 10
 fefc3058 pthread_cond_wait (13adf8, 13adc8, 3a8a10, 0, 0, 0) + 8
 ff1fb6b0 apr_thread_cond_wait (13adf0, 13adc0, 1, 6, 96d00, 0) + 18
 0005ede4 ap_queue_info_wait_for_idler (13ada8, eacfbf20, 3a8a10, 0, 0, 0) + 54
 0005b928 listener_thread (13b0f8, 2e6058, 1, 6, 96d00, 0) + 120
 ff20fe10 dummy_worker (13b0f8, eacfc000, 0, 0, ff20fdf8, 1) + 18
 fefc8a20 _lwp_start (0, 0, 0, 0, 0, 0)

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