[Kernel-packages] [Bug 1766543] Re: instance deletion takes a while and blocks nova-compute

2018-07-26 Thread Junien Fridrick
apport information ** Tags added: apport-collected uec-images xenial ** Description changed: Hi, I have a cloud running xenial/mitaka (with 18.02 charms). Sometimes, an instance will take minutes to delete. I tracked down the time taken to be file deletion : Apr 23 07:23:00

[Kernel-packages] [Bug 1766543] Re: instance deletion takes a while and blocks nova-compute

2018-07-26 Thread Junien Fridrick
By the way the task blocks on the following : ==> /proc/54255/task/54255/stack <== [] wakeup_preempt_entity.isra.6+0x7c/0x90 [] __switch_to+0x1f8/0x350 [] get_request+0x29c/0x910 [] blk_queue_bio+0x164/0x500 [] generic_make_request+0x154/0x310 [] submit_bio+0xd4/0x1f0 [] ext4_io_submit+0x7c/0xb0

[Kernel-packages] [Bug 1766543] Re: instance deletion takes a while and blocks nova-compute

2018-07-26 Thread James Page
Raising a task for the kernel for an opinion on how to triage this problem further; Marking the nova task as Medium but leaving as New for now until we figure out what's going on - this is not a show stopped but is a pain. ** Also affects: linux (Ubuntu) Importance: Undecided Status: