Netdev Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Martin Zaharinov <micron10@gmail.com>
To: Florian Westphal <fw@strlen.de>
Cc: "Guillaume Nault" <gnault@redhat.com>,
	"Pali Rohár" <pali@kernel.org>,
	"Greg KH" <gregkh@linuxfoundation.org>,
	netdev <netdev@vger.kernel.org>,
	"Eric Dumazet" <eric.dumazet@gmail.com>
Subject: Re: Urgent  Bug report: PPPoE ioctl(PPPIOCCONNECT): Transport endpoint is not connected
Date: Tue, 14 Sep 2021 13:53:20 +0300	[thread overview]
Message-ID: <504E1119-3631-4A2A-BD0C-F74AEE2BDBF5@gmail.com> (raw)
In-Reply-To: <20210914095015.GA9076@breakpoint.cc>

Florian Hi 
One more 

please see i try to remove nf_nat and xt_MASQUERADE 

and on time of problem need 50-80 sec to remove and overload system .

see perf from this moment: 




 PerfTop:    1738 irqs/sec  kernel:85.0%  exact: 100.0% lost: 0/0 drop: 0/0 [4000Hz cycles],  (all, 12 CPUs)
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

    40.63%  [nf_conntrack]    [k] nf_ct_iterate_cleanup
    21.23%  [kernel]          [k] __local_bh_enable_ip
    10.93%  [kernel]          [k] __cond_resched
     9.20%  [kernel]          [k] _raw_spin_lock
     8.91%  [kernel]          [k] rcu_all_qs
     5.83%  [nf_conntrack]    [k] nf_conntrack_lock
     0.10%  [kernel]          [k] mutex_spin_on_owner
     0.08%  telegraf          [.] 0x0000000000021bf0
     0.06%  [kernel]          [k] osq_lock
     0.06%  [kernel]          [k] kallsyms_expand_symbol.constprop.0
     0.05%  [kernel]          [k] format_decode
     0.04%  [kernel]          [k] rtnl_fill_ifinfo.constprop.0.isra.0
     0.04%  perf              [.] 0x00000000000bc7b3
     0.04%  [kernel]          [k] memcpy_erms
     0.03%  [kernel]          [k] string
     0.03%  [kernel]          [k] menu_select
     0.03%  [kernel]          [k] nla_put
     0.03%  [kernel]          [k] vsnprintf



Martin

> On 14 Sep 2021, at 12:50, Florian Westphal <fw@strlen.de> wrote:
> 
> Guillaume Nault <gnault@redhat.com> wrote:
>>> And on time of problem when try to write : ip a 
>>> to list interface wait 15-20 sec i finaly have options to simulate but users is angry when down internet.
>> 
>> Probably some contention on the rtnl lock.
> 
> Yes, I'll create a patch.


      parent reply	other threads:[~2021-09-14 10:53 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-05 20:53 Martin Zaharinov
2021-08-06  4:40 ` Greg KH
2021-08-06  5:40   ` Martin Zaharinov
2021-08-08 15:14   ` Martin Zaharinov
2021-08-08 15:23     ` Pali Rohár
2021-08-08 15:29       ` Martin Zaharinov
2021-08-09 15:15         ` Pali Rohár
2021-08-10 18:27           ` Martin Zaharinov
2021-08-11 16:40             ` Guillaume Nault
2021-08-11 11:10           ` Martin Zaharinov
2021-08-11 16:48             ` Guillaume Nault
2021-09-07  6:16               ` Martin Zaharinov
2021-09-07  6:42                 ` Martin Zaharinov
2021-09-11  6:26                   ` Martin Zaharinov
2021-09-14  6:16                     ` Martin Zaharinov
2021-09-14  8:02                       ` Guillaume Nault
2021-09-14  9:50                         ` Florian Westphal
2021-09-14 10:01                           ` Martin Zaharinov
2021-09-14 11:00                             ` Florian Westphal
2021-09-15 14:25                               ` Martin Zaharinov
2021-09-15 14:37                                 ` Martin Zaharinov
2021-09-16 20:00                               ` Martin Zaharinov
2021-09-14 10:53                           ` Martin Zaharinov [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=504E1119-3631-4A2A-BD0C-F74AEE2BDBF5@gmail.com \
    --to=micron10@gmail.com \
    --cc=eric.dumazet@gmail.com \
    --cc=fw@strlen.de \
    --cc=gnault@redhat.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=netdev@vger.kernel.org \
    --cc=pali@kernel.org \
    --subject='Re: Urgent  Bug report: PPPoE ioctl(PPPIOCCONNECT): Transport endpoint is not connected' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).