PHP :: Bug #17672 :: infinite loop in php_request

Bug #17672

infinite loop in php_request_shutdown?

Submitted:

2002-06-09 22:17 UTC

Modified:

2002-07-24 05:00 UTC

Votes:	1
Avg. Score:	3.0 ± 0.0
Reproduced:	1 of 1 (100.0%)
Same Version:	1 (100.0%)
Same OS:	1 (100.0%)

From:

chris-php at bolt dot cx

Assigned:

Status:

Closed

Package:

Scripting Engine problem

PHP Version:

4.2.1

OS:

Linux 2.4.19-pre4 SMP

Private report:

CVE-ID:

None

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From:	chris-php at bolt dot cx
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New Comment:

[2002-06-09 22:17 UTC] chris-php at bolt dot cx

I think I'm experiencing bug 11346 ( http://bugs.php.net/bug.php?id=11346 ) except with PHP 4.2.1:

Top, sorted by CPU time used:

 4208 nobody    18   0  5388 5388  4020 R     3.3  0.2  20:04 httpd
 4241 nobody    18   0  5252 5252  4028 R     3.3  0.2  19:55 httpd
 4293 nobody    14   0  5368 5368  4060 R     3.1  0.2  19:37 httpd
 4588 nobody    20   0  5156 5156  3972 R     4.1  0.2  18:41 httpd
 4324 nobody    14   0  5932 5932  4112 R     2.3  0.2  18:41 httpd
 4482 nobody    15   0  5580 5580  4076 R     2.7  0.2  18:30 httpd
 4857 nobody    16   0  5372 5372  4024 R     2.7  0.2  17:55 httpd
 4871 nobody    20   0  5452 5452  4116 R     4.3  0.2  17:50 httpd
 5612 nobody    16   0  6064 6064  4120 R     3.3  0.2  14:23 httpd

(they would be using more CPU, but we have a really busy server)

PHP error log:

[09-Jun-2002 18:53:19] PHP Fatal error:  Maximum execution time of 30 seconds exceeded in Unknown on line 0
[09-Jun-2002 18:56:21] PHP Fatal error:  Maximum execution time of 30 seconds exceeded in Unknown on line 0
[09-Jun-2002 19:07:35] PHP Fatal error:  Maximum execution time of 30 seconds exceeded in Unknown on line 0
[09-Jun-2002 19:10:26] PHP Fatal error:  Maximum execution time of 30 seconds exceeded in Unknown on line 0

Backtrace of one of the processes:

(gdb) bt
#0  0x4010d2fa in chunk_free () from /lib/libc.so.6
#1  0x4010d064 in free () from /lib/libc.so.6
#2  0x401e606c in shutdown_memory_manager (silent=1, clean_cache=0)
    at zend_alloc.c:468
#3  0x4020c6c5 in php_request_shutdown (dummy=0x0) at main.c:794
#4  0x402091a3 in apache_php_module_main (r=0x81913fc, display_source_mode=0)
    at sapi_apache.c:96
#5  0x40209d0f in send_php (r=0x81913fc, display_source_mode=0, filename=0x0)
    at mod_php4.c:575
#6  0x40209d73 in send_parsed_php (r=0x81913fc) at mod_php4.c:590
#7  0x080a1189 in ap_invoke_handler ()
#8  0x080b788f in ap_some_auth_required ()
#9  0x080b7902 in ap_process_request ()
#10 0x080ae1a6 in ap_child_terminate ()
#11 0x080ae44a in ap_child_terminate ()
#12 0x080ae7f8 in ap_child_terminate ()
#13 0x080aedcc in ap_child_terminate ()
#14 0x080af42c in main ()
#15 0x400b5c6f in __libc_start_main () from /lib/libc.so.6

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[2002-06-15 22:41 UTC] sniper@php.net

Are you able to provide some short script which can
be used to reproduce this?

And do you load any extensions in php.ini?

--Jani

[2002-06-16 00:40 UTC] chris-php at bolt dot cx

No, it doesn't seem to happen on any specific script on the site. And we're not using register_shutdown_function() anywhere.

We're not loading any extensions.

[2002-06-16 00:48 UTC] sniper@php.net

If possible, please try this snapshot:

http://snaps.php.net/php4-latest.tar.gz

(no guarantees it will solve this problem..but just in case)

[2002-06-19 08:26 UTC] sniper@php.net

just a note: Someone else reported similar problem been
solved with the latest snapshot..

[2002-07-24 04:59 UTC] chris-php at bolt dot cx

Haven't seen this since I upgraded to 4.2.2

[2002-07-24 05:00 UTC] chris-php at bolt dot cx

Closing...

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