On 10/9/20 7:54 PM, Eric van Gyzen wrote:
On 10/9/20 6:27 PM, Ryan Moeller wrote:
On 10/9/20 6:22 PM, Alan Somers wrote:
This sounds like it might be a regression introduced by the OpenZFS
merge.
Have you compared vdev_geom.c in OpenZFS vs the old version?
-Alan
I don't think vdev_geom.c is involved, we're taking a wrong path in
zvol_os.c because
it seems the volume is created using the default volmode and later
changed to volmode=dev.
Yes, you're on the right track. I tried this several times on a VM and
it eventually hit the window:
# zfs create -s -V 20G -o primarycache=none -o volmode=dev
head_root/testvol
zvol_create_minor_impl:1250[1]: Creating ZVOL head_root/testvol...
zvol_create_minor_impl:1371[1]: ZVOL head_root/testvol created.
Fatal trap 12: page fault while in kernel mode
Let's track this in
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=250297
Eric
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