Re: [GIT PULL] bcachefs

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On Tue, Jun 27, 2023 at 04:15:24PM -0400, Kent Overstreet wrote:
> On Tue, Jun 27, 2023 at 11:16:01AM -0600, Jens Axboe wrote:
> > On 6/26/23 8:59?PM, Jens Axboe wrote:
> > > On 6/26/23 8:05?PM, Kent Overstreet wrote:
> > >> On Mon, Jun 26, 2023 at 07:13:54PM -0600, Jens Axboe wrote:
> > >>> Doesn't reproduce for me with XFS. The above ktest doesn't work for me
> > >>> either:
> > >>
> > >> It just popped for me on xfs, but it took half an hour or so of looping
> > >> vs. 30 seconds on bcachefs.
> > > 
> > > OK, I'll try and leave it running overnight and see if I can get it to
> > > trigger.
> > 
> > I did manage to reproduce it, and also managed to get bcachefs to run
> > the test. But I had to add:
> > 
> > diff --git a/check b/check
> > index 5f9f1a6bec88..6d74bd4933bd 100755
> > --- a/check
> > +++ b/check
> > @@ -283,7 +283,7 @@ while [ $# -gt 0 ]; do
> >  	case "$1" in
> >  	-\? | -h | --help) usage ;;
> >  
> > -	-nfs|-afs|-glusterfs|-cifs|-9p|-fuse|-virtiofs|-pvfs2|-tmpfs|-ubifs)
> > +	-nfs|-afs|-glusterfs|-cifs|-9p|-fuse|-virtiofs|-pvfs2|-tmpfs|-ubifs|-bcachefs)
> >  		FSTYP="${1:1}"
> >  		;;
> >  	-overlay)
> 
> I wonder if this is due to an upstream fstests change I haven't seen
> yet, I'll have a look.

Run mkfs.bcachefs on the testdir first. fstests tries to probe the
filesystem type to test if $FSTYP is not set. If it doesn't find a
filesystem or it is unsupported, it will use the default (i.e. XFS).
There should be no reason to need to specify the filesystem type for
filesystems that blkid recognises. from common/config:

        # Autodetect fs type based on what's on $TEST_DEV unless it's been set
        # externally
        if [ -z "$FSTYP" ] && [ ! -z "$TEST_DEV" ]; then
                FSTYP=`blkid -c /dev/null -s TYPE -o value $TEST_DEV`
        fi
        FSTYP=${FSTYP:=xfs}
        export FSTYP

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx



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