> On Dec 8, 2021, at 12:24, Martin Pieuchot wrote:
>
> On 06/12/21(Mon) 14:58, Scott Cheloha wrote:
>> On Mon, Dec 06, 2021 at 08:35:15PM +0100, Mark Kettenis wrote:
Date: Sun, 5 Dec 2021 18:01:04 -0600
From: Scott Cheloha
Two things in sys_kbind() need an explicit kernel l
On 06/12/21(Mon) 14:58, Scott Cheloha wrote:
> On Mon, Dec 06, 2021 at 08:35:15PM +0100, Mark Kettenis wrote:
> > > Date: Sun, 5 Dec 2021 18:01:04 -0600
> > > From: Scott Cheloha
> > >
> > > Two things in sys_kbind() need an explicit kernel lock. First,
> > > sigexit(). Second, uvm_map_extract(
On Mon, Dec 06, 2021 at 08:35:15PM +0100, Mark Kettenis wrote:
> > Date: Sun, 5 Dec 2021 18:01:04 -0600
> > From: Scott Cheloha
> >
> > Two things in sys_kbind() need an explicit kernel lock. First,
> > sigexit(). Second, uvm_map_extract(), because the following call
> > chain panics without it
> Date: Sun, 5 Dec 2021 18:01:04 -0600
> From: Scott Cheloha
>
> Two things in sys_kbind() need an explicit kernel lock. First,
> sigexit(). Second, uvm_map_extract(), because the following call
> chain panics without it:
>
> panic
> assert
> uvn_reference
> uvm_mapent_clone
> uum_map_extract
Two things in sys_kbind() need an explicit kernel lock. First,
sigexit(). Second, uvm_map_extract(), because the following call
chain panics without it:
panic
assert
uvn_reference
uvm_mapent_clone
uum_map_extract
sys_kbind
syscall
Xsyscall
uvn_reference() does KERNEL_ASSERT_LOCKED().
These
