[PVFS-users] IOD unaligned access to XXXXXXXX

[Nathan Poznick]

Thus spake Martin Margo:
> Hi, I am running pvfs 1.6.0 on my 128 nodes cluster. The cluster is a 
> dual procesor IA-64 linux running SuSE sles8 , with SP3 and running 
> kernel 2.4.21
> 
> I have been seeing these kind of errors in my syslog
> =============
> Feb 11 05:41:09 tg-c134 kernel: iod(261): unaligned access to 
> 0x60000fffffffbc5c, ip=0xe0000000044b7990
> Feb 11 05:41:12 tg-c136 kernel: iod(261): unaligned access to 
> 0x60000fffffffbc5c, ip=0xe0000000044b7880
> 
> =============
> 
> does anyone know what does it mean and how to fix it? Is it serious or 
> just a warning? Thanks in advance

There will be a slight performance hit due to the kernel having to
translate the unaligned access into an aligned one to send to the
processor, but it shouldn't hurt anything.  If the unaligned accesses
can be found, they can be fixed - but it's not absolutely necessary.


-- 
Nathan Poznick <poznick at conwaycorp.net>

This above all: to thine own self be true, And it must follow, as the
night the day, Thou canst not then be false to any man. - William
Shakespeare

-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Digital signature
Url : http://www.beowulf-underground.org/pipermail/pvfs-users/attachments/20040212/824166e3/attachment.bin