Hi,
When fuzzing arm64 with Syzkaller, I'm seeing some splats where
this_cpu_ptr() is used in the bowels of idr_alloc(), by way of
radix_tree_node_alloc(), in a preemptible context:
| BUG: using smp_processor_id() in preemptible [] code:
syz-executor.1/32582
| caller is debug_smp_process
On Tue, Jan 26, 2021 at 10:47:34AM +, Mark Rutland wrote:
> Hi,
>
> When fuzzing arm64 with Syzkaller, I'm seeing some splats where
> this_cpu_ptr() is used in the bowels of idr_alloc(), by way of
> radix_tree_node_alloc(), in a preemptible context:
I sent a patch to fix this last June. The
On Tue, Jan 26, 2021 at 02:58:33PM +, Matthew Wilcox wrote:
> On Tue, Jan 26, 2021 at 10:47:34AM +, Mark Rutland wrote:
> > Hi,
> >
> > When fuzzing arm64 with Syzkaller, I'm seeing some splats where
> > this_cpu_ptr() is used in the bowels of idr_alloc(), by way of
> > radix_tree_node_all
On Tue, Jan 26, 2021 at 11:00:05AM -0600, Bjorn Andersson wrote:
> On Tue 26 Jan 10:21 CST 2021, Mark Rutland wrote:
>
> > On Tue, Jan 26, 2021 at 02:58:33PM +, Matthew Wilcox wrote:
> > > On Tue, Jan 26, 2021 at 10:47:34AM +, Mark Rutland wrote:
> > > > Hi,
> > > >
> > > > When fuzzing a
On Tue, Jan 26, 2021 at 06:36:02PM +, Mark Rutland wrote:
> On Tue, Jan 26, 2021 at 11:00:05AM -0600, Bjorn Andersson wrote:
> > On Tue 26 Jan 10:21 CST 2021, Mark Rutland wrote:
> >
> > > On Tue, Jan 26, 2021 at 02:58:33PM +, Matthew Wilcox wrote:
> > > > On Tue, Jan 26, 2021 at 10:47:34A
On Tue 26 Jan 10:21 CST 2021, Mark Rutland wrote:
> On Tue, Jan 26, 2021 at 02:58:33PM +, Matthew Wilcox wrote:
> > On Tue, Jan 26, 2021 at 10:47:34AM +, Mark Rutland wrote:
> > > Hi,
> > >
> > > When fuzzing arm64 with Syzkaller, I'm seeing some splats where
> > > this_cpu_ptr() is used
