Re: Core dumps

On May 7, 2009, at 4:21 PM, Scott Haneda wrote:

> What can a core dump tell me to help trace this issue down and solve
> it?  Named is going deaf/dead for some reason, perhaps related, I need
> it to keep up.


I just had two more happen.  This is not even a production server as  
of yet, it is being readied for that though.  There should be very  
little hitting named-sdb at this point...

(gdb) backtrace
#0  0x00002af5a089fdfb in ?? () from /usr/lib64/mysql/ 
libmysqlclient.so.15
#1  0x00002af5a08a0179 in my_net_read () from /usr/lib64/mysql/ 
libmysqlclient.so.15
#2  0x00002af5a0899922 in cli_safe_read () from /usr/lib64/mysql/ 
libmysqlclient.so.15
#3  0x00002af5a089a9f9 in ?? () from /usr/lib64/mysql/ 
libmysqlclient.so.15
#4  0x00002af5a0898f9e in mysql_real_query ()
   from /usr/lib64/mysql/libmysqlclient.so.15
#5  0x00002af59f09c67a in mysql_get_resultset (zone=0x4542f960  
"ns1.*****.com",
    record=<value optimized out>, client=0x0, query=4,  
dbdata=0x2af59f3391e0,
    rs=0x4542f918) at ../../contrib/dlz/drivers/dlz_mysql_driver.c:324
#6  0x00002af59f09c80b in mysql_findzone (driverarg=<value optimized  
out>,
    dbdata=0x2af59f3391e0, name=0x4542f960 "ns1.******.com")
    at ../../contrib/dlz/drivers/dlz_mysql_driver.c:515
#7  0x00002af59f7c8353 in dns_sdlzfindzone (driverarg=0x2af59f2fc410,
    dbdata=0x2af59f3391e0, mctx=0x2af59f2ea6c0, rdclass=1,  
name=0x4542fdf0,
    dbp=0x45430058) at sdlz.c:1461
#8  0x00002af59f72cf22 in dns_dlzfindzone (view=0x2af59f3d8d20,  
name=0x2aaaaafda090,
    minlabels=3, dbp=0x45430058) at dlz.c:294
#9  0x00002af59f06add4 in query_getdb (client=0x2aaaaafd1b20,  
name=0x2aaaaafda090,
    qtype=<value optimized out>, options=0, zonep=0x45431050,  
dbp=0x454310b8,
    versionp=0x45431058, is_zonep=0x454310cc) at query.c:925
#10 0x00002af59f06fe92 in query_find (client=0x2aaaaafd1b20,  
event=0x0, qtype=1)
    at query.c:3805
#11 0x00002af59f0735cd in ns_query_start (client=0x2aaaaafd1b20) at  
query.c:5095
#12 0x00002af59f06026d in client_request (task=<value optimized out>,
    event=<value optimized out>) at client.c:1898
#13 0x00002af5a0629e2c in run (uap=<value optimized out>) at task.c:862
#14 0x00002af5a1ae2367 in start_thread () from /lib64/libpthread.so.0
#15 0x00002af5a259f0ad in clone () from /lib64/libc.so.6
-- 
Scott * If you contact me off list replace talklists@ with scott@ *


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