Re: SOLVED Re: Disk corruption and performance issue.

[Tim Woodall <debianuser@woodall.me.uk>]

On Mon, 26 Feb 2024, Andy Smith wrote:

> Hi,
>
> On Mon, Feb 26, 2024 at 06:25:53PM +0000, Tim Woodall wrote:
> > Feb 17 17:01:49 xen17 vmunix: [    3.802581] ata1.00: disabling queued TRIM support
> > Feb 17 17:01:49 xen17 vmunix: [    3.805074] ata1.00: disabling queued TRIM support
> >
> >
> > from libata-core.c
> >
> >  { "Samsung SSD 870*",  NULL, ATA_HORKAGE_NO_NCQ_TRIM |
> >       ATA_HORKAGE_ZERO_AFTER_TRIM |
> >       ATA_HORKAGE_NO_NCQ_ON_ATI },
> >
> > This fixed the disk corruption errors at the cost of dramatically
> > reducing performance. (I'm not sure why because manual fstrim didn't
> > improve things)
>
> That's interesting. I have quite a few of these drives and haven't
> noticed any problems. What kernel version introduced the above
> workarounds?
>
> $ sudo lsblk -do NAME,MODEL
> NAME MODEL
> sda  SAMSUNG_MZ7KM1T9HAJM-00005
> sdb  SAMSUNG_MZ7KM1T9HAJM-00005
> sdc  Samsung_SSD_870_EVO_4TB
> sdd  Samsung_SSD_870_EVO_4TB
> sde  ST4000LM016-1N2170
> sdf  ST4000LM016-1N2170
> sdg  SuperMicro_SSD
> sdh  SuperMicro_SSD
>
> Thanks,
> Andy
Looks like the fix was brand new around sept 2021
https://www.neowin.net/news/linux-patch-disables-trim-and-ncq-on-samsung-860870-ssds-in-intel-and-amd-systems/

I was still seeing corruption in August 2022 but it's possible the fix
wasn't backported to whatever release I was running.

Tim.