When hypercalls is used for sending IPIs, kexec will fail with a kernel
panic like this:
kexec_core: Starting new kernel
BUG: unable to handle kernel NULL pointer dereference at
PGD 800057995067 P4D 800057995067 PUD 57990067 PMD 0
Oops: 0002 [#1] SMP PTI
CPU: 0 PID: 1016 C
Kairui Song writes:
> When hypercalls is used for sending IPIs, kexec will fail with a kernel
> panic like this:
>
> kexec_core: Starting new kernel
> BUG: unable to handle kernel NULL pointer dereference at
> PGD 800057995067 P4D 800057995067 PUD 57990067 PMD 0
> Oops: 0
On Tue, Feb 26, 2019 at 11:56:15PM +0800, Kairui Song wrote:
> arch/x86/hyperv/hv_init.c | 4
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
> index 7abb09e2eeb8..92291c18d716 100644
> --- a/arch/x86/hyperv/hv_init.c
> +++ b/arch/x86/
On Wed, Feb 27, 2019 at 8:02 PM Peter Zijlstra wrote:
>
> On Tue, Feb 26, 2019 at 11:56:15PM +0800, Kairui Song wrote:
> > arch/x86/hyperv/hv_init.c | 4
> > 1 file changed, 4 insertions(+)
> >
> > diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
> > index 7abb09e2eeb8..922
On Wed, Feb 27, 2019 at 10:55:46PM +0800, Kairui Song wrote:
> On Wed, Feb 27, 2019 at 8:02 PM Peter Zijlstra wrote:
> >
> > On Tue, Feb 26, 2019 at 11:56:15PM +0800, Kairui Song wrote:
> > > arch/x86/hyperv/hv_init.c | 4
> > > 1 file changed, 4 insertions(+)
> > >
> > > diff --git a/arch/x
On Tue, Mar 5, 2019 at 8:28 PM Peter Zijlstra wrote:
>
> On Wed, Feb 27, 2019 at 10:55:46PM +0800, Kairui Song wrote:
> > On Wed, Feb 27, 2019 at 8:02 PM Peter Zijlstra wrote:
> > >
> > > On Tue, Feb 26, 2019 at 11:56:15PM +0800, Kairui Song wrote:
> > > > arch/x86/hyperv/hv_init.c | 4
> >