64bit segfaults on debian [long]
Hi,
In whole 2009 I was managing something about 20-30 servers and about
15-20% of those were 32bit and rest was on 64bit Debian.
For quite some time (1-2 years) I was not quite sure about this fact
but now is the time to ask...
After fully switching to 64bit (Debian mainly) I started to find this
messages in logfiles . Those segfaults are affecting random
applications - as well mencoder and imagemagick [1] on encoding
mediaservers on Etch as typical lamp servers with php and mysql [2]
also on Etch. When upgraded to Lenny , messages occured to have
another format [3] . What's interesting those segfaults messages (from
dmesg) have following properties :
- are only occuring on 64bit systems (while completely THE SAME 32bit
mirror server with the same load and even filesystem does not leave
those messages in dmesg)
- occur not randomly - certain actions like opening specified URL
cause the segfault
- are not disturbing the operation of given application ( the process
doesn't die )
- are affecting random applications - mainly every userspace application
The hardware that I use is 50% of HP DL380's and Intel Servers. So my
question is : is it normal ? am I experiencing something weird because
all of my applications work but show fake errors , and last but not
least - what are those messages ;) ?
Regards,
Wojtek
[1]
mencoder[15010]: segfault at 0000000000000008 rip 00000000005edc4c rsp
00007fff531199d0
[2]
php5-cgi[3913] general protection rip:2acafe536be9 rsp:7fffac575c40 error:
sbox[4030]: segfault at 000000000001d3a0 rip 00002aaacc1fa050 rsp
00007fffdeb41dd8 error 4
[3]
php-cgi[3852]: segfault at 7f3089288a10 ip 00007f3089288a10 sp
00007fff97174408 error 4 in libpthread-2.3.6.so[7f308b687000+10000]
apache2[3658]: segfault at 7fff3f74cef8 ip 7f3837b9d2f7 sp
7fff3f74ce00 error 6 in libpcre.so.3.12.0[7f3837b8e000+25000]
--
Wojciech Ziniewicz
http://www.rfc-editor.org/rfc/rfc2324.txt
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