Re: [OE-core] [PATCH] image_types: preserve rootfs if mkext234fs() fails

[Tom Rini]

On Tue, Dec 19, 2017 at 01:19:09PM -0800, Andre McCurdy wrote:
> On Tue, Dec 19, 2017 at 12:54 PM, Tom Rini <tr...@konsulko.com> wrote:
> > On Tue, Dec 19, 2017 at 12:11:48PM -0800, Saul Wold wrote:
> >> We have seen more failures, but have not been able to directly reproduce
> >> it maybe svaing the rootfs and it contains some content that is tripping
> >> up the e2fsprogs mkfs.ext4 populate_rootfs() function
> >>
> >> Signed-off-by: Saul Wold <s...@linux.intel.com>
> >> ---
> >>  meta/classes/image_types.bbclass | 7 ++++++-
> >>  1 file changed, 6 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/meta/classes/image_types.bbclass 
> >> b/meta/classes/image_types.bbclass
> >> index 9188bed4197..6b4f39ed274 100644
> >> --- a/meta/classes/image_types.bbclass
> >> +++ b/meta/classes/image_types.bbclass
> >> @@ -86,9 +86,14 @@ oe_mkext234fs () {
> >>       bbdebug 1 Executing "dd if=/dev/zero 
> >> of=${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype 
> >> seek=$ROOTFS_SIZE count=$COUNT bs=1024"
> >>       dd if=/dev/zero 
> >> of=${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype 
> >> seek=$ROOTFS_SIZE count=$COUNT bs=1024
> >>       bbdebug 1 "Actual Rootfs size:  `du -s ${IMAGE_ROOTFS}`"
> >> -     bbdebug 1 "Actual Partion size: `ls -s 
> >> ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype`"
> >> +     bbdebug 1 "Actual Partion size: `ls -l 
> >> ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype`"
> >>       bbdebug 1 Executing "mkfs.$fstype -F $extra_imagecmd 
> >> ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype -d 
> >> ${IMAGE_ROOTFS}"
> >>       mkfs.$fstype -F $extra_imagecmd 
> >> ${IMGDEPLOYDIR}/${IMAGE_NAME}${IMAGE_NAME_SUFFIX}.$fstype -d 
> >> ${IMAGE_ROOTFS}
> >> +     if [ $? -ne 0 ]; then
> >> +             tmp_saved_rootfs=`mktemp -d -p /tmp saved_rootfs.XXXXX`
> >> +             cp -r ${IMAGE_ROOTFS} $tmp_saved_rootfs
> >> +     fi
> >
> > Wouldn't it be better to just fail on error here, rather than dump stuff
> > to /tmp ?
> 
> It already does fail with an error. Saving the state is temporary
> additional debug to help understand why.
> 
> https://bugzilla.yoctoproject.org/show_bug.cgi?id=12304

So the problem is with the autobuilder where everything else gets blown
away.  That's fine, this is an autobuilder specific work-around, not a
general purpose patch and shouldn't be in mainline, would be my point.

-- 
Tom

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