On Wed, Dec 09, 2020 at 04:47:52PM +0200, Martin Zaharinov wrote:
> Hi All
>
> I have problem with latest kernel release
> And the problem is base on this late problem :
>
>
> https://www.mail-archive.com/search?l=net...@vger.kernel.org&q=subject:%22Re%5C%3A+ppp%5C%2Fpppoe%2C+still+panic+4.15.3+in+ppp_push%22&o=newest&f=1
>
> I have same problem in kernel 5.6 > now I use kernel 5.9.13 and have same
> problem.
>
>
> In kernel 5.9.13 now don’t have any crashes in dimes but in one moment accel
> service stop with defunct and in log have many of this line :
>
>
> error: vlan608: ioctl(PPPIOCCONNECT): Transport endpoint is not connected
> error: vlan617: ioctl(PPPIOCCONNECT): Transport endpoint is not connected
> error: vlan679: ioctl(PPPIOCCONNECT): Transport endpoint is not connected
>
> In one moment connected user bump double or triple and after that service
> defunct and need wait to drop all session to start .
>
> I talk with accel-ppp team and they said this is kernel related problem and
> to back to kernel 4.14 there is not this problem.
>
> Problem is come after kernel 4.15 > and not have solution to this moment.
I'm sorry, I don't understand.
Do you mean that v4.14 worked fine (no crash, no ioctl() error)?
Did the problem start appearing in v4.15? Or did v4.15 work and the
problem appeared in v4.16?
> Please help to find the problem.
>
> Last time in link I see is make changes in ppp_generic.c
>
> ppp_lock(ppp);
> spin_lock_bh(&pch->downl);
> if (!pch->chan) {
> /* Don't connect unregistered channels */
> spin_unlock_bh(&pch->downl);
> ppp_unlock(ppp);
> ret = -ENOTCONN;
> goto outl;
> }
> spin_unlock_bh(&pch->downl);
>
>
> But this fix only to don’t display error and freeze system
> The problem is stay and is to big.
Do you use accel-ppp's unit-cache option? Does the problem go away if
you stop using it?
>
> Please help to fix.
>
>
>
