Re: [regression] failed command: READ FPDMA QUEUED after boot for INTEL SSDSC2KG480G8, XCV10120 after 9b8b84879d4a ("block: Increase BLK_DEF_MAX_SECTORS_CAP")

[Niklas Cassel <cassel@kernel.org>]

Hello Salvatore,

On Wed, Jan 14, 2026 at 12:47:45PM +0100, Salvatore Bonaccorso wrote:
> A user reported a regression affecting his devices after 9b8b84879d4a
> ("block: Increase BLK_DEF_MAX_SECTORS_CAP") which maybe needs a
> similar quirk like 2e9832713631 ("ata: libata-core: Quirk DELLBOSS VD
> max_sectors").

The drive:
> Dec 10 18:56:03 kernel: ata1.00: Model 'INTEL SSDSC2KG480G8', rev 'XCV10120', applying quirks: zeroaftertrim
> Dec 10 18:56:03 kernel: ata1.00: ATA-10: INTEL SSDSC2KG480G8, XCV10120, max UDMA/133

The SATA controller:
00:17.0 SATA controller [0106]: Intel Corporation Cannon Lake Mobile PCH SATA AHCI Controller [8086:a353] (rev 10) (prog-if 01 [AHCI 1.0])
	DeviceName: Onboard - SATA
	Subsystem: Dell Device [1028:0924]


Perhaps the user could run:
https://github.com/floatious/max-sectors-quirk/blob/master/find-max-sectors.sh

So we could find which max sectors value we should quirk the device with,
since while the drive obviously chokes on a command of size 4 MiB / 8192
sectors, it might be able to handle something larger than 1280 KiB / 2560
sectors.


Kind regard,
Niklas