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

Marc Hartmayer posted 6 patches 5 years, 10 months ago
Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/libvirt tags/patchew/20180703113738.3425-1-mhartmay@linux.ibm.com
Test syntax-check passed
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(-)
[libvirt] [PATCH v2 0/6] Fixes for segfault and deadlock
Posted by Marc Hartmayer 5 years, 10 months ago
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

--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list
Re: [libvirt] [PATCH v2 0/6] Fixes for segfault and deadlock
Posted by Marc Hartmayer 5 years, 9 months ago
On Tue, Jul 03, 2018 at 01:37 PM +0200, Marc Hartmayer <mhartmay@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
>
> --
> libvir-list mailing list
> libvir-list@redhat.com
> https://www.redhat.com/mailman/listinfo/libvir-list

Polite ping (and added Daniel on CC since he had comments on v1).

--
Beste Grüße / Kind regards
   Marc Hartmayer

IBM Deutschland Research & Development GmbH
Vorsitzende des Aufsichtsrats: Martina Koederitz
Geschäftsführung: Dirk Wittkopp
Sitz der Gesellschaft: Böblingen
Registergericht: Amtsgericht Stuttgart, HRB 243294


--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list