Re: kern/56737: WDCTL_RST errors in 9.99.92 and 9.99.93

[Robert Nestor <rnestor%mac.com@localhost>]

On Jan 5, 2023, at 8:05 AM, Manuel Bouyer <bouyer%antioche.eu.org@localhost> wrote:

> On Thu, Jan 05, 2023 at 01:50:01PM +0000, Martin Husemann wrote:
>> The following reply was made to PR kern/56737; it has been noted by GNATS.
>> 
>> From: Martin Husemann <martin%duskware.de@localhost>
>> To: gnats-bugs%netbsd.org@localhost
>> Cc: 
>> Subject: Re: kern/56737: WDCTL_RST errors in 9.99.92 and 9.99.93
>> Date: Thu, 5 Jan 2023 14:49:07 +0100
>> 
>> Could you try a kernel with the patch below?
>> 
>> Martin
>> 
>> 
>> Index: ahcisata_pci.c
>> ===================================================================
>> RCS file: /cvsroot/src/sys/dev/pci/ahcisata_pci.c,v
>> retrieving revision 1.68
>> diff -u -p -r1.68 ahcisata_pci.c
>> --- ahcisata_pci.c	12 Oct 2022 12:50:02 -0000	1.68
>> +++ ahcisata_pci.c	5 Jan 2023 13:46:28 -0000
>> @@ -206,6 +206,8 @@ static const struct ahci_pci_quirk ahci_
>>  	    AHCI_QUIRK_BADPMP },
>> 
>>      /* extra delay */
>> +	{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_6SERIES_AHCI_1,
>> +	    AHCI_QUIRK_EXTRA_DELAY },
>>  	{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_C600_AHCI,
>>  	    AHCI_QUIRK_EXTRA_DELAY },
>>  	{ PCI_VENDOR_INTEL, PCI_PRODUCT_INTEL_7SER_MO_SATA_AHCI,
> 
> Actually I wonder it these quirks (AHCI_QUIRK_EXTRA_DELAY) is right.
> The extra delay may depend on the drive connected to the adapter,
> not the adapter itself.
> 
> -- 
> Manuel Bouyer <bouyer%antioche.eu.org@localhost>
>     NetBSD: 26 ans d'experience feront toujours la difference

In my case it appears that the problem is drive related, not controller related.  Slow drives fail to boot while faster drives succeed using the same controller.  The good news though is that with Martin’s patch installed I was able to successfully boot one of my slower drives a dozen times without a single failure.  I used a mix of BIOS and UEFI boot to when testing the patch.

Thanks to Martin for the quick patch/fix!
-bob