| Message ID | 20180731135000.6114-1-eric.desrochers@canonical.com |
|---|---|
| Headers | show |
| Series | BUG: scheduling while atomic on VMware 6.0 and late. | expand |
On 31.07.2018 15:49, Eric Desrochers wrote: > A "BUG: scheduling while atomic" situation randomly occur when VMware guess is running Ubuntu kernel 3.13 series and hosted on VMware 6.0 and later, > with VMCI (Virtual Machine Communication Interface) turned on. > > Upstream discussion confirms the need of the 3 upstream commits : https://patchwork.kernel.org/patch/9948741/ > The VMware author of the patch suggested a backport from upstream of 3 patches he made. > > The patches has been tested for more than 3 weeks now with a user affected by this situation, without any problem on both VMware < & > than VMware 6.0, and it run smootly for both with no new occurence ofthe bug. No regression found for Vmware < 6.0 and no occurence of a crash for VMware > 6.0 > > BugLink: https://bugs.launchpad.net/bugs/1780470 > > Eric Desrochers (1): > VSOCK: Detach QP check should filter out non matching QPs. > > Jorgen Hansen (2): > VSOCK: sock_put wasn't safe to call in interrupt context > VSOCK: Fix lockdep issue. > > net/vmw_vsock/vmci_transport.c | 173 ++++++++++++++++----------------- > net/vmw_vsock/vmci_transport.h | 4 +- > 2 files changed, 86 insertions(+), 91 deletions(-) > Based on successful testing and limited risk due to changes being made only to a very specific driver. Acked-by: Stefan Bader <stefan.bader@canonical.com>
On 07/31/18 15:49, Eric Desrochers wrote: > A "BUG: scheduling while atomic" situation randomly occur when VMware guess is running Ubuntu kernel 3.13 series and hosted on VMware 6.0 and later, > with VMCI (Virtual Machine Communication Interface) turned on. > > Upstream discussion confirms the need of the 3 upstream commits : https://patchwork.kernel.org/patch/9948741/ > The VMware author of the patch suggested a backport from upstream of 3 patches he made. > > The patches has been tested for more than 3 weeks now with a user affected by this situation, without any problem on both VMware < & > than VMware 6.0, and it run smootly for both with no new occurence ofthe bug. No regression found for Vmware < 6.0 and no occurence of a crash for VMware > 6.0 > > BugLink: https://bugs.launchpad.net/bugs/1780470 > > Eric Desrochers (1): > VSOCK: Detach QP check should filter out non matching QPs. > > Jorgen Hansen (2): > VSOCK: sock_put wasn't safe to call in interrupt context > VSOCK: Fix lockdep issue. > > net/vmw_vsock/vmci_transport.c | 173 ++++++++++++++++----------------- > net/vmw_vsock/vmci_transport.h | 4 +- > 2 files changed, 86 insertions(+), 91 deletions(-) > With the "backported from ..." fix for patch 3/3: Acked-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
On 07/31/18 15:49, Eric Desrochers wrote: > A "BUG: scheduling while atomic" situation randomly occur when VMware guess is running Ubuntu kernel 3.13 series and hosted on VMware 6.0 and later, > with VMCI (Virtual Machine Communication Interface) turned on. > > Upstream discussion confirms the need of the 3 upstream commits : https://patchwork.kernel.org/patch/9948741/ > The VMware author of the patch suggested a backport from upstream of 3 patches he made. > > The patches has been tested for more than 3 weeks now with a user affected by this situation, without any problem on both VMware < & > than VMware 6.0, and it run smootly for both with no new occurence ofthe bug. No regression found for Vmware < 6.0 and no occurence of a crash for VMware > 6.0 > > BugLink: https://bugs.launchpad.net/bugs/1780470 > > Eric Desrochers (1): > VSOCK: Detach QP check should filter out non matching QPs. > > Jorgen Hansen (2): > VSOCK: sock_put wasn't safe to call in interrupt context > VSOCK: Fix lockdep issue. > > net/vmw_vsock/vmci_transport.c | 173 ++++++++++++++++----------------- > net/vmw_vsock/vmci_transport.h | 4 +- > 2 files changed, 86 insertions(+), 91 deletions(-) > Applied to trusty/master-next branch, with the authorship and "backported from ... " fixes on patch 3/3. Thanks, Kleber