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From bugzi...@apache.org
Subject DO NOT REPLY [Bug 20421] New: - child pid $PID exit signal Segmentation fault (11)
Date Mon, 02 Jun 2003 15:24:31 GMT
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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=20421

child pid $PID exit signal Segmentation fault (11)

           Summary: child pid $PID exit signal Segmentation fault (11)
           Product: Apache httpd-2.0
           Version: 2.0.46
          Platform: PC
        OS/Version: Other
            Status: UNCONFIRMED
          Severity: Normal
          Priority: Other
         Component: Core
        AssignedTo: bugs@httpd.apache.org
        ReportedBy: jp@2fast.nl


On a heavy loaded webserver apache 1.3.27 performs well even better with apache
2.0.46 but the httpd-processes suddenly get killed by a segfault as seen below
in the error_log:

[Mon Jun 02 17:10:54 2003] [notice] child pid 17306 exit signal Segmentation
fault (11)
[Mon Jun 02 17:10:54 2003] [notice] child pid 17305 exit signal Segmentation
fault (11)
[Mon Jun 02 17:10:54 2003] [notice] child pid 17266 exit signal Segmentation
fault (11)
[Mon Jun 02 17:10:54 2003] [notice] child pid 16839 exit signal Segmentation
fault (11)
[Mon Jun 02 17:10:56 2003] [notice] child pid 17381 exit signal Segmentation
fault (11)
[Mon Jun 02 17:11:03 2003] [notice] child pid 17479 exit signal Segmentation
fault (11)
[Mon Jun 02 17:11:06 2003] [notice] child pid 17485 exit signal Segmentation
fault (11)
[Mon Jun 02 17:11:06 2003] [notice] child pid 17477 exit signal Segmentation
fault (11)


Below the strace output from a proces died by a sigfault, the "sigreturn()" till
the "<... rt_sigsuspend resumed>" line are repeated very often but i neglected
to paste the whole log in here:

sigreturn()                             = ? (mask now [INT QUIT USR1 ALRM TERM
STKFLT CHLD CONT TSTP TTIN TTOU URG XCPU XFSZ VTALRM PROF WINCH IO PWR RTMIN])
accept(3, {sa_family=AF_INET, sin_port=htons(2120),
sin_addr=inet_addr("213.46.18.75")}, [16]) = 18
kill(7377, SIGRTMIN)                    = 0
kill(7377, SIGRTMIN)                    = 0
rt_sigprocmask(SIG_SETMASK, NULL, ~[HUP ILL TRAP ABRT BUS FPE KILL SEGV USR2
PIPE STOP SYS 33], 8) = 0
rt_sigsuspend(~[HUP ILL TRAP ABRT BUS FPE KILL SEGV USR2 PIPE STOP SYS RTMIN 33]
<unfinished ...>
--- SIGRTMIN (Real-time signal 0) @ 0 (0) ---
<... rt_sigsuspend resumed> )           = -1 EINTR (Interrupted system call)
sigreturn()                             = ? (mask now [INT QUIT USR1 ALRM TERM
STKFLT CHLD CONT TSTP TTIN TTOU URG XCPU XFSZ VTALRM PROF WINCH IO PWR RTMIN])
accept(3, {sa_family=AF_INET, sin_port=htons(34311),
sin_addr=inet_addr("80.60.121.216")}, [16]) = 18
kill(7377, SIGRTMIN)                    = 0
kill(7377, SIGRTMIN)                    = 0
rt_sigprocmask(SIG_SETMASK, NULL, ~[HUP ILL TRAP ABRT BUS FPE KILL SEGV USR2
PIPE STOP SYS 33], 8) = 0
rt_sigsuspend(~[HUP ILL TRAP ABRT BUS FPE KILL SEGV USR2 PIPE STOP SYS RTMIN 33]
<unfinished ...>
--- SIGRTMIN (Real-time signal 0) @ 0 (0) ---
<... rt_sigsuspend resumed> )           = -1 EINTR (Interrupted system call)
sigreturn()                             = ? (mask now [INT QUIT USR1 ALRM TERM
STKFLT CHLD CONT TSTP TTIN TTOU URG XCPU XFSZ VTALRM PROF WINCH IO PWR RTMIN])
accept(3, {sa_family=AF_INET, sin_port=htons(4693),
sin_addr=inet_addr("62.163.33.51")}, [16]) = 18
kill(7377, SIGRTMIN)                    = 0
kill(7377, SIGRTMIN)                    = 0
rt_sigprocmask(SIG_SETMASK, NULL, ~[HUP ILL TRAP ABRT BUS FPE KILL SEGV USR2
PIPE STOP SYS 33], 8) = 0
rt_sigsuspend(~[HUP ILL TRAP ABRT BUS FPE KILL SEGV USR2 PIPE STOP SYS RTMIN 33]
<unfinished ...>
--- SIGSEGV (Segmentation fault) @ 0 (0) ---

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