On Tue, Jun 16, 2020 at 11:30 PM Michel Lespinasse wrote:
>
> On Tue, Jun 16, 2020 at 11:07 PM Stafford Horne wrote:
> > On Wed, Jun 17, 2020 at 02:35:39PM +0900, Stafford Horne wrote:
> > > On Tue, Jun 16, 2020 at 01:47:24PM -0700, Michel Lespinasse wrote:
> > > > This makes me wonder actually -
On Tue, Jun 16, 2020 at 11:07 PM Stafford Horne wrote:
> On Wed, Jun 17, 2020 at 02:35:39PM +0900, Stafford Horne wrote:
> > On Tue, Jun 16, 2020 at 01:47:24PM -0700, Michel Lespinasse wrote:
> > > This makes me wonder actually - maybe there is a latent bug that got
> > > exposed after my change a
On Wed, Jun 17, 2020 at 02:35:39PM +0900, Stafford Horne wrote:
> On Tue, Jun 16, 2020 at 01:47:24PM -0700, Michel Lespinasse wrote:
> > This makes me wonder actually - maybe there is a latent bug that got
> > exposed after my change added the rwsem_is_locked assertion to the
> > lockdep_assert_hel
On Tue, Jun 16, 2020 at 01:47:24PM -0700, Michel Lespinasse wrote:
> This makes me wonder actually - maybe there is a latent bug that got
> exposed after my change added the rwsem_is_locked assertion to the
> lockdep_assert_held one. If that is the case, it may be helpful to
> bisect when that issu
This makes me wonder actually - maybe there is a latent bug that got
exposed after my change added the rwsem_is_locked assertion to the
lockdep_assert_held one. If that is the case, it may be helpful to
bisect when that issue first appeared, by testing before my patchset
with VM_BUG_ON(!rwsem_is_lo
On Tue, Jun 16, 2020 at 12:19 PM Stafford Horne wrote:
>
> On Tue, Jun 16, 2020 at 03:44:49AM -0700, Michel Lespinasse wrote:
> > I am also unable to reproduce the issue so far.
> >
> > I wanted to point to a few things in case this helps:
> > - Commit 42fc541404f2 was bisected as the cause. This
On Tue, Jun 16, 2020 at 03:44:49AM -0700, Michel Lespinasse wrote:
> I am also unable to reproduce the issue so far.
>
> I wanted to point to a few things in case this helps:
> - Commit 42fc541404f2 was bisected as the cause. This commit changes
> walk_page_range_novma() to use mmap_assert_locked(
Le 6/16/20 à 2:07 PM, Palmer Dabbelt a écrit :
On Tue, 16 Jun 2020 10:54:51 PDT (-0700), ati...@atishpatra.org wrote:
On Tue, Jun 16, 2020 at 3:45 AM Michel Lespinasse
wrote:
I am also unable to reproduce the issue so far.
I wanted to point to a few things in case this helps:
- Commit 42fc54
On Tue, Jun 16, 2020 at 11:15 AM Palmer Dabbelt wrote:
>
> On Tue, 16 Jun 2020 11:08:55 PDT (-0700), ati...@atishpatra.org wrote:
> > On Tue, Jun 16, 2020 at 11:07 AM Palmer Dabbelt wrote:
> >>
> >> On Tue, 16 Jun 2020 10:54:51 PDT (-0700), ati...@atishpatra.org wrote:
> >> > On Tue, Jun 16, 2020
On Tue, 16 Jun 2020 11:08:55 PDT (-0700), ati...@atishpatra.org wrote:
On Tue, Jun 16, 2020 at 11:07 AM Palmer Dabbelt wrote:
On Tue, 16 Jun 2020 10:54:51 PDT (-0700), ati...@atishpatra.org wrote:
> On Tue, Jun 16, 2020 at 3:45 AM Michel Lespinasse wrote:
>>
>> I am also unable to reproduce t
On Tue, Jun 16, 2020 at 11:07 AM Palmer Dabbelt wrote:
>
> On Tue, 16 Jun 2020 10:54:51 PDT (-0700), ati...@atishpatra.org wrote:
> > On Tue, Jun 16, 2020 at 3:45 AM Michel Lespinasse wrote:
> >>
> >> I am also unable to reproduce the issue so far.
> >>
> >> I wanted to point to a few things in c
On Tue, 16 Jun 2020 10:54:51 PDT (-0700), ati...@atishpatra.org wrote:
On Tue, Jun 16, 2020 at 3:45 AM Michel Lespinasse wrote:
I am also unable to reproduce the issue so far.
I wanted to point to a few things in case this helps:
- Commit 42fc541404f2 was bisected as the cause. This commit ch
On Tue, Jun 16, 2020 at 3:45 AM Michel Lespinasse wrote:
>
> I am also unable to reproduce the issue so far.
>
> I wanted to point to a few things in case this helps:
> - Commit 42fc541404f2 was bisected as the cause. This commit changes
> walk_page_range_novma() to use mmap_assert_locked() instea
I am also unable to reproduce the issue so far.
I wanted to point to a few things in case this helps:
- Commit 42fc541404f2 was bisected as the cause. This commit changes
walk_page_range_novma() to use mmap_assert_locked() instead of
lockdep_assert_held()
- mmap_assert_locked() checks lockdep_asse
On Mon, 15 Jun 2020 21:51:08 PDT (-0700), sho...@gmail.com wrote:
On Tue, Jun 16, 2020 at 06:57:47AM +0900, Stafford Horne wrote:
On Mon, Jun 15, 2020 at 12:28:11AM -0700, Atish Patra wrote:
> Hi,
> I encountered the following issue while booting 5.8-rc1 on Qemu for RV64.
> I added additional du
On Tue, Jun 16, 2020 at 06:57:47AM +0900, Stafford Horne wrote:
> On Mon, Jun 15, 2020 at 12:28:11AM -0700, Atish Patra wrote:
> > Hi,
> > I encountered the following issue while booting 5.8-rc1 on Qemu for RV64.
> > I added additional dump_stack and observed that it's happening in bpf free
> > pa
On Mon, Jun 15, 2020 at 12:28:11AM -0700, Atish Patra wrote:
> Hi,
> I encountered the following issue while booting 5.8-rc1 on Qemu for RV64.
> I added additional dump_stack and observed that it's happening in bpf free
> path.
> It happens always if CONFIG_DEBUG_VM is enabled. VM_BUG_ON_MM is
> c
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