This request was evaluated by Red Hat Product Management for
inclusion in the current release of Red Hat Enterprise Linux.
Because the affected component is not scheduled to be updated in the
current release, Red Hat is unfortunately unable to address this
request at this time. Red Hat invites you to ask your support
representative to propose this request, if appropriate and relevant,
in the next release of Red Hat Enterprise Linux.

I just tried this on a rhel 5.7 box from beaker (dell-gx240-01):

-rw-r--r-- 1 root root 33826940 Feb  6 23:42 log_0
-rw-r--r-- 1 root root 38960117 Feb  6 23:44 log_1
-rw-r--r-- 1 root root 31107582 Feb  6 23:44 log_10
-rw-r--r-- 1 root root 38486707 Feb  6 23:44 log_11
-rw-r--r-- 1 root root 38476828 Feb  6 23:44 log_12
-rw-r--r-- 1 root root 37482439 Feb  6 23:44 log_13
-rw-r--r-- 1 root root 30730818 Feb  6 23:44 log_14
-rw-r--r-- 1 root root 30280918 Feb  6 23:44 log_15
-rw-r--r-- 1 root root 28881107 Feb  6 23:44 log_16
-rw-r--r-- 1 root root 26469780 Feb  6 23:44 log_17
-rw-r--r-- 1 root root 26234460 Feb  6 23:44 log_18
-rw-r--r-- 1 root root 35504413 Feb  6 23:44 log_19
-rw-r--r-- 1 root root 38952079 Feb  6 23:44 log_2
-rw-r--r-- 1 root root 38254677 Feb  6 23:44 log_3
-rw-r--r-- 1 root root 38775506 Feb  6 23:44 log_4
-rw-r--r-- 1 root root 37023708 Feb  6 23:44 log_5
-rw-r--r-- 1 root root 38754559 Feb  6 23:44 log_6
-rw-r--r-- 1 root root 38503353 Feb  6 23:44 log_7
-rw-r--r-- 1 root root 34097807 Feb  6 23:44 log_8
-rw-r--r-- 1 root root 31036943 Feb  6 23:44 log_9

From those logs it doesn't appear that any of the processes/threads stopped.  It's possible this was fixed by one of the many strace and/or pthread fixes that have gone into rhel 5.x.  I'm closing.  Feel free to repoen if you can get it to trigger.