Re: kern/54790 (9.0_RC1 kernel crash in ata_recovery_resume() (in NCQ support?))

[Andreas Gustafsson <gson%NetBSD.org@localhost>]

The following reply was made to PR kern/54790; it has been noted by GNATS.

From: Andreas Gustafsson <gson%NetBSD.org@localhost>
To: Izumi Tsutsui <tsutsui%ceres.dti.ne.jp@localhost>
Cc: gnats-bugs%netbsd.org@localhost, jdolecek%netbsd.org@localhost
Subject: Re: kern/54790 (9.0_RC1 kernel crash in ata_recovery_resume() (in NCQ
	 support?))
Date: Fri, 4 Feb 2022 13:14:15 +0200

 Izumi Tsutsui wrote:
 > On my environment (ATI SB600) this problem was workaround by
 > AHCI_QUIRK_BADNCQ quirk:
 >  https://mail-index.netbsd.org/source-changes/2020/01/18/msg112983.html
 > so it was not trivial to test the later fix. (sorry for a late feedback)
 
 It's possible we have been suffering from two separate bugs that both
 cause device timeouts, and in both cases the timeouts were triggering
 the same third bug causing panics during recovery.
 
 Since my PR 56479 was specifically about the panics, I have now filed
 a separate PR 56686 about the timeouts.  If your timeout problem was
 indeed specific to AMD chipsets, mine must be unrelated because my
 machine has an Intel chipset.
 -- 
 Andreas Gustafsson, gson%NetBSD.org@localhost