On 20.01.2021 15:35, Roger Pau Monné wrote: > On Wed, Jan 20, 2021 at 03:23:30PM +0100, Arthur Borsboom wrote: >> Hi Roger, >> >> I have set up a test environment based on Linux 5.11.0-rc4. >> The patch did not apply clean, so I copied/pasted the patch manually. >> >> Without the patch the call trace (as reported) is visible in dmesg. >> With the patch the call trace in dmesg is gone, but ... (there is always a >> but) ... >> >> Now the discard action returns the following. >> >> [arthur@test-arch ~]$ sudo fstrim -v / >> fstrim: /: the discard operation is not supported >> >> It might be correct, but of course I was hoping the Xen VM guest would pass >> on the discard request to the block device in the Xen VM host, which is a >> disk partition. >> Any suggestions? > > Hm, that's not what I did see on my testing, the operation worked OK, > and that's what I would expect to happen in your case also, since I > know the xenstore keys. Does discard work on partitions (and not just on entire disks)? It's been a while since I last had anything to do with this code, so I may well misremember. Jan
