lkml.org 
[lkml]   [2008]   [Aug]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: amd64 sata_nv (massive) memory corruption
    >>>>> "Linas" == Linas Vepstas <linasvepstas@gmail.com> writes:

    Linas> 2008/8/1 Alistair John Strachan <alistair@devzero.co.uk>:
    >> On Friday 01 August 2008 18:30:34 Linas Vepstas wrote:
    >>> Hi,
    >>>
    >>> I'm seeing strong, easily reproducible (and silent) corruption on a
    >>> sata-attached
    >>> disk drive on an amd64 board. It might be the disk itself, but I
    >>> doubt it; googling
    >>> suggests that its somehow iommu-related but I cannot confirm this.
    >>
    >> Nowhere do you explicitly say you have memtest86'ed the RAM.

    Linas> It passes memtest86+ just fine. The system has been in heavy
    Linas> use doing big science calculations on big datasets (multi-gigabyte)
    Linas> for months; these do not get corrupted when copied/moved around
    Linas> on the old parallel IDE disk, nor moving/copying on an NFS mount
    Linas> to a file server. Only the SATA disk is misbehaving.

    Can you post the output of dmesg after a boot, so we can see which
    driver is being used? I assume the new Libata stuff, but maybe you
    can also turn on debugging in there as well. Stuff like SCSI_DEBUG
    (in the SCSI menus) might show us more details here.

    Also, have you tried a new SATA cable by any chance? That's obviously
    the cheaper path than getting a new disk...

    Good luck,
    John



    \
     
     \ /
      Last update: 2008-08-02 22:11    [W:2.475 / U:0.044 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site