[libvirt] [PATCH v2 0/6] Fixes for segfault and deadlock

Marc Hartmayer mhartmay at linux.ibm.com
Wed Jul 11 14:30:52 UTC 2018


On Tue, Jul 03, 2018 at 01:37 PM +0200, Marc Hartmayer <mhartmay at linux.ibm.com> wrote:
> One way to reproduce the bugs is to set admin_max_workers=0 in
> libvirtd.conf, restart libvirtd, and then call:
>
>  $ virt-admin server-threadpool-info admin
>
> Changelog:
>  v1->v2:
>   - Worked in Daniel Berrangé's comments that:
>     1. max_workers=0 should not be allowed for the libvirtd (patch 3)
>     2. it shouldn't be allowed to switch between zero and non-zero
>        max_workers (patch 4)
>   - Changed the deadlock fix (patch 1)
>   - Added two small fixes (patch 5 and 6)
>
> Marc Hartmayer (6):
>   rpc: Fix deadlock if there is no worker pool available
>   rpc: Initialize a worker pool for max_workers=0 as well
>   virThreadPool: Prevent switching between zero and non-zero maxWorkers
>   daemon: Raise an error if 'max_workers' < 1 in libvirtd.conf
>   virt-admin: Fix two error messages
>   rpc: Fix name of include guard
>
>  src/libvirt_private.syms          |  4 ++
>  src/remote/remote_daemon_config.c |  5 +++
>  src/rpc/virnetserver.c            | 28 ++++++++------
>  src/rpc/virnetserverprogram.h     |  4 +-
>  src/util/virthreadpool.c          | 81 ++++++++++++++++++++++++++++++---------
>  src/util/virthreadpool.h          |  8 ++++
>  tools/virt-admin.c                |  5 ++-
>  7 files changed, 101 insertions(+), 34 deletions(-)
>
> --
> 2.13.4
>
> --
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Polite ping (and added Daniel on CC since he had comments on v1).

--
Beste Grüße / Kind regards
   Marc Hartmayer

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