[gentoo-user] Re: Emerge --sync source

[Grant Edwards]

On 2019-03-07, Mick <michaelkintzios@×××××.com> wrote:

> I can think of 3 things, but more learned M/L contributors may add to these:
>
> 1. The SATA connection has come loose.  With time and movement it can come
> (slightly) adrift.  Pushing it back in fully fixes this problem - also see No.
> 2 below.
>
> 2. The physical connector's contacts are beginning to oxidise.  Reseat the
> SATA cable connectors both on the drive and any ribbons on the MoBo.  This
> usualy cleans any oxidisation.
>
> 3. The AHCI driver is deploying energy saving measures (aka. Aggressive Link
> Power Management - ALPM).  Check the output of:
>
>  cat /sys/class/scsi_host/host*/link_power_management_policy
>
> If it doesn't say 'max_performance' you'll need to revisit your BIOS settings
> and also PCIEASPM settings in the kernel.
>
> 4. Finally, there is a chance the PSU is playing up.

Perhaps it's already been mentioned, but failing RAM can cause all
sorts failures that might appear to be failing disks, failing network
cards, failing video cards whatever.  I'd run memtest86 for at least
12 hours just to make sure...

-- 
Grant Edwards               grant.b.edwards        Yow! Well, O.K.
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                                                   EXISTENTIAL DESPAIR!