Re: kern/56329: nvme(4) takes long time to umount

["J. Hannken-Illjes" <hannken%mailbox.org@localhost>]

The following reply was made to PR kern/56329; it has been noted by GNATS.

From: "J. Hannken-Illjes" <hannken%mailbox.org@localhost>
To: NetBSD GNATS <gnats-bugs%netbsd.org@localhost>
Cc: 
Subject: Re: kern/56329: nvme(4) takes long time to umount
Date: Sat, 23 Apr 2022 11:11:38 +0200

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 > On 22. Apr 2022, at 16:20, Paul Goyette <paul%whooppee.com@localhost> wrote:
 <snip>
 > OK, I tried a 9.99.96 kernel with both DEBUG and DIAGNOSTIC turned
 > off.
 <snip>
 > So, the unmount did not complete, but it still took a long time
 > to fail.
 
 So it is independent of DIAGNOSTIC and DEBUG -- good.
 
 Next time you run a bulk build please do the unmount with the
 script attached as "sh do_unmount.sh | tee do_unmount.log" and
 send the files do_unmount.log, pre-null.log and pre-build.log
 off list to hannken%mailbox.org@localhost
 
 --
 J. Hannken-Illjes - hannken%mailbox.org@localhost
 
 
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 #! /bin/sh
 
 do_unmount(){
 
 	iostat -I -x ld0
 	date "+=== %T unmount ${1}"
 	umount ${1}
 	date "+=== %T"
 	iostat -I -x ld0
 }
 
 pstat -v > pre-null.log
 
 do_unmount /build/netbsd-local/src
 do_unmount /build/netbsd-local/xsrc
 do_unmount /build/netbsd-current/src
 
 pstat -v > pre-build.log
 
 do_unmount /build
 
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