Re: svwsata: lost/missing interrupt

["Jonathan A. Kollasch" <jakllsch%netbsd.org@localhost>]

On Mon, Feb 17, 2025 at 06:12:34PM +0100, Edgar Fuß wrote:
> After updating two identical servers from -8 to -10, I regularily get
> 
> autoconfiguration error: svwsata0:2:0: lost interrupt
>          type: ata tc_bcount: 8192 tc_skip: 0
> autoconfiguration error: svwsata0:2:0: bus-master DMA error: missing interrupt, status=0x20
> wd2a: DMA error writing fsbn 921744 of 921744-921759 (wd2 bn 921807; cn 914 tn 7 sn 54), xfer 38, retry 0
> wd2: soft error (corrected) xfer 38
> 
> on both of them (for varying values of device, fsbn etc) on both discs. 
> I didn't get them under -8.
> 
> The only relevant dmesg diff I can find wrt. an identical server still 
> running -8 (though some of the discs are not 100% identical since some of them 
> failed and were replaced) are
> 
> -wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
> +wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133), NCQ (32 tags) w/PRIO
> 
> and
> 
> -wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133)
> -wd1(svwsata0:1:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using DMA)
> +wd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 6 (Ultra/133), WRITE DMA FUA, NCQ (32 tags)
> +wd1(svwsata0:2:0): using PIO mode 4, Ultra-DMA mode 6 (Ultra/133) (using DMA), WRITE DMA FUA EXT
> 
> Any hints?

Could you give
https://mail-index.netbsd.org/source-changes/2025/02/17/msg155557.html
 or
-r1.171 src/sys/dev/ata/ata.c
-r1.33 src/sys/dev/ata/files.ata
a try?