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I need help in determining how to fix the seg fault errors that Apache is
generating many times per day. I am running Apache/1.3.41 (Unix) on Centos
4.8. The kernel is 2.6.9-89.0.20.ELsmp #1 SMP i686 i686 i386 GNU/Linux.
The log files show this error several times per day:
[Wed Feb 10 14:24:25 2010] [notice] child pid 26635 exit signal Segmentation
fault (11), possible coredump in /hsphere/local/var/httpd/logs and core
And gdb of the dump files show the error as:
Program terminated with signal 11, Segmentation fault.
Cannot access memory at address 0xb7f8d000
#0 0x080686ad in ap_rflush ()
Researching ap_rflush(), I see it is a function that flushes the contents to
the client. I would greatly appreciate hearing back from anyone who has
resolved this kind of issue before.
Thank you.
-Gil Vidals
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<span class=3D"Apple-style-span" style=3D"font-family: 'Courier New'=
;; font-size: medium; "><div style=3D"margin-top: 0px; margin-bottom: 0px; =
"><span class=3D"Apple-style-span" style=3D"font-family: verdana, sans-seri=
f; font-size: small; ">I need help in determining how to fix the seg fault =
errors that Apache is generating many times per day. I am running Apache/1.=
3.41 (Unix) on Centos 4.8. The =A0kernel is 2.6.9-89.0.20.ELsmp #1 SMP i686=
i686 i386 GNU/Linux.</span></div>
<div style=3D"margin-top: 0px; margin-bottom: 0px; "><span class=3D"Apple-s=
tyle-span" style=3D"font-family: verdana, sans-serif; font-size: small; "><=
br></span></div><div style=3D"margin-top: 0px; margin-bottom: 0px; "><font =
class=3D"Apple-style-span" face=3D"verdana, sans-serif"><span class=3D"Appl=
e-style-span" style=3D"font-size: small;">The log files show this error sev=
eral times per day:</span></font></div>
<div style=3D"margin-top: 0px; margin-bottom: 0px; "><font class=3D"Apple-s=
tyle-span" face=3D"verdana, sans-serif"><span class=3D"Apple-style-span" st=
yle=3D"font-size: small;"><br></span></font></div><div style=3D"margin-top:=
0px; margin-bottom: 0px; ">
<font class=3D"Apple-style-span" face=3D"verdana, sans-serif"><span class=
=3D"Apple-style-span" style=3D"font-size: small;"><font class=3D"Apple-styl=
e-span" face=3D"'courier new', monospace">[Wed Feb 10 14:24:25 2010=
] [notice] child pid 26635 exit signal Segmentation fault (11), possible co=
redump in /hsphere/local/var/httpd/logs and core=A0</font></span></font></d=
iv>
<div style=3D"margin-top: 0px; margin-bottom: 0px; "><font class=3D"Apple-s=
tyle-span" face=3D"verdana, sans-serif"><span class=3D"Apple-style-span" st=
yle=3D"font-size: small;"><br></span></font></div><div style=3D"margin-top:=
0px; margin-bottom: 0px; ">
<font class=3D"Apple-style-span" face=3D"verdana, sans-serif"><span class=
=3D"Apple-style-span" style=3D"font-size: small;">And gdb of the dump files=
show the error as:</span></font></div><div style=3D"margin-top: 0px; margi=
n-bottom: 0px; ">
<font class=3D"Apple-style-span" face=3D"verdana, sans-serif"><span class=
=3D"Apple-style-span" style=3D"font-size: small;"><br></span></font></div><=
div style=3D"margin-top: 0px; margin-bottom: 0px; "><span class=3D"Apple-st=
yle-span" style=3D"font-size: small;">Program terminated with signal 11, Se=
gmentation fault.</span></div>
<div style=3D"margin-top: 0px; margin-bottom: 0px; "><span class=3D"Apple-s=
tyle-span" style=3D"font-size: small;">Cannot access memory at address 0xb7=
f8d000</span></div><div style=3D"margin-top: 0px; margin-bottom: 0px; "><sp=
an class=3D"Apple-style-span" style=3D"background-color: rgb(255, 255, 0); =
"><span class=3D"Apple-style-span" style=3D"font-size: small;">#0 =A00x0806=
86ad in ap_rflush ()</span></span></div>
<div style=3D"margin-top: 0px; margin-bottom: 0px; "><span class=3D"Apple-s=
tyle-span" style=3D"font-size: x-small; "><span class=3D"Apple-style-span" =
style=3D"background-color: rgb(255, 255, 0); "><br></span></span></div><div=
style=3D"margin-top: 0px; margin-bottom: 0px; ">
<font class=3D"Apple-style-span" face=3D"verdana, sans-serif"><span class=
=3D"Apple-style-span" style=3D"font-size: small;">Researching ap_rflush(), =
I see it is a function that flushes the contents to the client. I would gre=
atly appreciate hearing back from anyone who has resolved this kind of issu=
e before.</span></font></div>
<div style=3D"margin-top: 0px; margin-bottom: 0px; "><font class=3D"Apple-s=
tyle-span" face=3D"verdana, sans-serif"><span class=3D"Apple-style-span" st=
yle=3D"font-size: small;"><br></span></font></div><div style=3D"margin-top:=
0px; margin-bottom: 0px; ">
<font class=3D"Apple-style-span" face=3D"verdana, sans-serif"><span class=
=3D"Apple-style-span" style=3D"font-size: small;">Thank you.</span></font><=
/div><div style=3D"margin-top: 0px; margin-bottom: 0px; "><font class=3D"Ap=
ple-style-span" face=3D"verdana, sans-serif"><span class=3D"Apple-style-spa=
n" style=3D"font-size: small;"><br>
</span></font></div><div style=3D"margin-top: 0px; margin-bottom: 0px; "><f=
ont class=3D"Apple-style-span" face=3D"verdana, sans-serif"><span class=3D"=
Apple-style-span" style=3D"font-size: small;">-Gil Vidals=A0</span></font><=
/div><div style=3D"margin-top: 0px; margin-bottom: 0px; ">
<font class=3D"Apple-style-span" face=3D"verdana, sans-serif"><span class=
=3D"Apple-style-span" style=3D"font-size: small;"><br></span></font></div><=
/span>
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