Re: kern/53183: System stops servicing I/O requests and eventually deadlocks

[Jaromír Doleček <jaromir.dolecek%gmail.com@localhost>]

The following reply was made to PR kern/53183; it has been noted by GNATS.

From: =?UTF-8?B?SmFyb23DrXIgRG9sZcSNZWs=?= <jaromir.dolecek%gmail.com@localhost>
To: "gnats-bugs%NetBSD.org@localhost" <gnats-bugs%netbsd.org@localhost>
Cc: 
Subject: Re: kern/53183: System stops servicing I/O requests and eventually deadlocks
Date: Tue, 17 Apr 2018 00:42:07 +0200

 Thanks, yours is AHCI, so different case.
 
 Can you try this patch?
 
 http://www.netbsd.org/~jdolecek/wd_flush_lock.diff
 
 This is what I discovered by code inspection for changes of wd(4) for
 dksubr conversion. I don't really expect this to change anything, but
 worth try.
 
 Next step would be trying with following two files downgraded to
 revision before the dksubr changes, i.e.:
 sys/dev/ata/wd.c rev. 1.433
 sys/dev/ata/wdvar.h rev. 1.44
 
 Jaromir