Problem with MSQL

Sergey Tikhonov tsv at solvo.ru
Tue Jul 12 06:14:53 UTC 2005


Samad, Alex wrote:

> Hi
>
> I am using mysql
>
> # rpm -qa | grep mysql
>
> php-mysql-5.0.4-10
>
> mysql-4.1.11-2
>
> mysql-server-4.1.11-2
>
> And I am getting these in my dmesg should I be worried or are they 
> more warnings that have been handled?
>
Are those packets from "development" tree?
Those messages are not critical - just information that the program does 
unaligned access to data and Alpha doesn't like that. That exception is 
handled by the kernel and slow down the progam. The real slow down 
depends on how many unaligned access do you have. If many - yes you need 
worry, some - well it is up to you. :) The problem right now is new gcc 
4.x compiler and the user code as well. Some issues with the compiler 
itself (it generated the code that generated that exceptions) were 
resolved. I have not had time yet to look at this exception... It might 
be incorrect usage of pointers in mysql itself. If you have ev56 alpha 
you might (if you want) rebuild the mysql package for alphaev56 arch 
that have byte access instructions and those warning will be gone.

I am trying to build "eclipse" package right now and take so long .... 
after that I could take a look at mysql.

> mysqldump(8246): unaligned trap at 000002000005ff5c: 00000001200207bd 28 1
>
> mysqldump(8246): unaligned trap at 000002000005ff68: 00000001200207bd 2c 2
>
> mysqldump(8246): unaligned trap at 000002000005ff5c: 00000001200207bd 28 1
>
> mysqldump(8246): unaligned trap at 000002000005ff68: 00000001200207bd 2c 2
>
> mysqldump(8260): unaligned trap at 000002000005ff5c: 00000001200207bd 28 1
>
> mysqldump(8260): unaligned trap at 000002000005ff68: 00000001200207bd 2c 2
>
> mysqldump(8260): unaligned trap at 000002000005ff5c: 00000001200207bd 28 1
>
> mysqldump(8260): unaligned trap at 000002000005ff68: 00000001200207bd 2c 2
>
> mysqldump(8271): unaligned trap at 000002000005ff5c: 00000001200207bd 28 1
>
> mysqldump(8271): unaligned trap at 000002000005ff68: 00000001200207bd 2c 2
>
> mysqldump(8271): unaligned trap at 000002000005ff5c: 00000001200207bd 28 1
>
> mysqldump(8271): unaligned trap at 000002000005ff68: 00000001200207bd 2c 2
>
> mysqldump(8279): unaligned trap at 000002000005ff5c: 00000001200207bd 28 1
>
> mysqldump(8279): unaligned trap at 000002000005ff68: 00000001200207bd 2c 2
>
> mysqldump(8279): unaligned trap at 000002000005ff5c: 00000001200207bd 28 1
>
> mysqldump(8279): unaligned trap at 000002000005ff68: 00000001200207bd 2c 2
>
> mysqldump(8287): unaligned trap at 000002000005ff5c: 00000001200207bd 28 1
>
> mysqldump(8287): unaligned trap at 000002000005ff68: 00000001200207bd 2c 2
>
> mysqldump(8287): unaligned trap at 000002000005ff5c: 00000001200207bd 28 1
>
> mysqldump(8287): unaligned trap at 000002000005ff68: 00000001200207bd 2c 2
>
>
Regards,

-- 
Sergey Tikhonov
Solvo Ltd.
tsv at solvo.ru




More information about the axp-list mailing list