This seems to happen on pepe because of the speed of the backing store and timeout value is probably too low. The error occurs in nbd_xmit_timeout(), this issues the timeout error message, then nbd can't provide the backing store fs/buffer.c reports a bug in submit_bh_wbc():
BUG_ON(!buffer_mapped(bh)); ..and hence the crash report. I'm going to bump the timeout in the test and see if this helps. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1828546 Title: ubuntu_nbd_smoke_test failed with kernel warning on B-hwe-edge i386 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1828546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs