[sheepdog] filesystem errors when using sheepdog

[Hitoshi Mitake]

At Fri, 17 Jul 2015 14:05:58 +0300,
Vasiliy Tolstov wrote:
> 
> 2015-07-17 8:58 GMT+03:00 Hitoshi Mitake <mitake.hitoshi at gmail.com>:
> > Vasiliy,
> >
> > https://github.com/sheepdog/qemu/tree/serialize-v3
> >
> > I updated the patch in the above branch. Could you test it?
> >
> > BTW, could you describe your way of reproducing the bug? We are also
> > trying to reproduce but reproducibility is not so good (we are using
> > fio). It seems that your testing method has a high reproducibility. If
> > you can share it, it is a great help.
> 
> 
> This patch works fine if i don't enable discards in qemu. I'm
> successful install 10 vm in the same time and nothing breaks.
> But then i enable in qemu discards=unmap i have errors. Does it
> possible to fix this too?

Thanks a lot for testing! How about this version for discard:
https://github.com/sheepdog/qemu/tree/serialize-v4

Thanks,
Hitoshi

> 
> sheep.log:
> 
> Jul 17 13:58:49  ERROR [gway 32830] wait_forward_request(440) fail
> cccdb100000117, No object found
> Jul 17 13:58:49  ERROR [io 32792] sd_remove_object(556) failed to
> remove object cccdb100000117, No object found
> Jul 17 13:58:49  ERROR [io 32792] update_obj_refcnt(600) fail, 2
> Jul 17 13:58:49  ERROR [gway 32796] wait_forward_request(440) fail
> cccdb10000011b, No object found
> Jul 17 13:58:49  ERROR [io 32791] sd_remove_object(556) failed to
> remove object cccdb10000011b, No object found
> Jul 17 13:58:49  ERROR [io 32791] local_discard_obj(969) failed to
> remove cccdb10000011b
> Jul 17 13:58:49  ERROR [gway 32757] wait_forward_request(440) fail
> cccdb100000116, No object found
> Jul 17 13:58:49  ERROR [io 32789] sd_remove_object(556) failed to
> remove object cccdb100000116, No object found
> Jul 17 13:58:49  ERROR [io 32789] local_discard_obj(969) failed to
> remove cccdb100000116
> Jul 17 13:58:50  ERROR [gway 32828] wait_forward_request(440) fail
> cccdb100000119, No object found
> Jul 17 13:58:50  ERROR [io 32790] sd_remove_object(556) failed to
> remove object cccdb100000119, No object found
> Jul 17 13:58:50  ERROR [io 32790] local_discard_obj(969) failed to
> remove cccdb100000119
> Jul 17 13:58:50  ERROR [gway 32803] wait_forward_request(440) fail
> cccdb10000011a, No object found
> Jul 17 13:58:50  ERROR [io 32795] sd_remove_object(556) failed to
> remove object cccdb10000011a, No object found
> Jul 17 13:58:50  ERROR [io 32795] local_discard_obj(969) failed to
> remove cccdb10000011a
> Jul 17 13:58:50  ERROR [gway 32823] wait_forward_request(440) fail
> cccdb100000118, No object found
> Jul 17 13:58:50  ERROR [io 32793] sd_remove_object(556) failed to
> remove object cccdb100000118, No object found
> Jul 17 13:58:50  ERROR [io 32793] update_obj_refcnt(600) fail, 2
> Jul 17 13:58:50  ERROR [gway 32800] wait_forward_request(440) fail
> cccdb100000114, No object found
> Jul 17 13:58:50  ERROR [io 32791] sd_remove_object(556) failed to
> remove object cccdb100000114, No object found
> Jul 17 13:58:50  ERROR [io 32791] update_obj_refcnt(600) fail, 2
> 
> 
> -- 
> Vasiliy Tolstov,
> e-mail: v.tolstov at selfip.ru