Hello,
On Thu, May 20, 2021 at 11:28:19AM +0200, Claudio Jeker wrote:
>
> One way to reduce the problems with copyout(9) is to use uvm_vslock() to
> lock the pages. This is what sysctl does but it comes with its own set of
> issues.
>
using uvm_vslock() did not come to my mind, when I was
Am Thu, May 20, 2021 at 11:28:19AM +0200 schrieb Claudio Jeker:
> On Thu, May 20, 2021 at 09:37:38AM +0200, Martin Pieuchot wrote:
> > On 20/05/21(Thu) 03:23, Alexandr Nedvedicky wrote:
> > > Hrvoje gave a try to experimental diff, which trades rw-locks in pf(4)
> > > for mutexes [1]. Hrvoje soon
On Thu, May 20, 2021 at 09:37:38AM +0200, Martin Pieuchot wrote:
> On 20/05/21(Thu) 03:23, Alexandr Nedvedicky wrote:
> > Hrvoje gave a try to experimental diff, which trades rw-locks in pf(4)
> > for mutexes [1]. Hrvoje soon discovered machine panics, when doing 'pfctl
> > -ss'
> > The callstack
Hello,
>
>
> with this diff i can't reproduce panic as before. i tried pf with
> routing, veb, tpmr and bridge.
>
> Do you want me to test this diff with parallel diff?
>
I think it makes no sense to test the change around copyout() with parallel
diff as mpi@ points out rwlocks don't
On 20.5.2021. 3:23, Alexandr Nedvedicky wrote:
> Hello,
>
> Hrvoje gave a try to experimental diff, which trades rw-locks in pf(4)
> for mutexes [1]. Hrvoje soon discovered machine panics, when doing 'pfctl -ss'
> The callstack looks as follows:
>
> panic: acquiring blockable sleep lock with
On 20/05/21(Thu) 03:23, Alexandr Nedvedicky wrote:
> Hrvoje gave a try to experimental diff, which trades rw-locks in pf(4)
> for mutexes [1]. Hrvoje soon discovered machine panics, when doing 'pfctl -ss'
> The callstack looks as follows:
>
> [...]
> specific to experimental diff [1]. However this
Hello,
Hrvoje gave a try to experimental diff, which trades rw-locks in pf(4)
for mutexes [1]. Hrvoje soon discovered machine panics, when doing 'pfctl -ss'
The callstack looks as follows:
panic: acquiring blockable sleep lock with spinlock or critical section
held (rwlock) vmmaplk
Stopped at
