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Date: Wed, 15 Sep 2021 17:37:33 +0300 From: Martin Zaharinov <micron10@...il.com> To: Florian Westphal <fw@...len.de> Cc: Guillaume Nault <gnault@...hat.com>, netdev <netdev@...r.kernel.org> Subject: Re: Urgent Bug report: PPPoE ioctl(PPPIOCCONNECT): Transport endpoint is not connected and this : PerfTop: 26378 irqs/sec kernel:61.4% exact: 100.0% lost: 0/0 drop: 0/0 [4000Hz cycles], (all, 12 CPUs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 5.65% libfrr.so.0.0.0 [.] 0x00000000000ce970 5.56% [kernel] [k] osq_lock 5.22% [kernel] [k] mutex_spin_on_owner 3.66% [pppoe] [k] pppoe_flush_dev 3.01% libfrr.so.0.0.0 [.] 0x00000000000ce94e 1.98% libc.so.6 [.] 0x00000000000965a2 1.84% libc.so.6 [.] 0x0000000000186afa 1.55% libc.so.6 [.] 0x0000000000186e57 1.54% zebra [.] 0x00000000000b9271 1.46% zebra [.] 0x00000000000b91f1 1.46% libteam.so.5.6.1 [.] 0x0000000000006470 1.44% libc.so.6 [.] 0x00000000000965a0 1.30% libteam.so.5.6.1 [.] 0x0000000000009e7d 1.08% [kernel] [k] fib_table_flush 1.02% libc.so.6 [.] 0x0000000000186eac 0.93% [kernel] [k] do_poll.constprop.0 0.85% libc.so.6 [.] 0x0000000000186afe 0.80% dtvbras [.] 0x0000000000014be8 0.78% [kernel] [k] queued_read_lock_slowpath 0.72% [kernel] [k] next_uptodate_page 0.64% [kernel] [k] zap_pte_range 0.64% bgpd [.] 0x0000000000070a46 0.61% [kernel] [k] fib_table_insert > On 15 Sep 2021, at 17:25, Martin Zaharinov <micron10@...il.com> wrote: > > Hey Florian > > make test in lab and look much better that before. > > see this perf > > PerfTop: 6551 irqs/sec kernel:77.8% exact: 100.0% lost: 0/0 drop: 0/0 [4000Hz cycles], (all, 12 CPUs) > --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- > > 15.70% [ixgbe] [k] ixgbe_read_reg > 13.33% [kernel] [k] mutex_spin_on_owner > 7.65% [kernel] [k] osq_lock > 2.85% libfrr.so.0.0.0 [.] 0x00000000000ce970 > 1.94% libfrr.so.0.0.0 [.] 0x00000000000ce94e > 1.19% libc.so.6 [.] 0x0000000000186afa > 1.15% [kernel] [k] do_poll.constprop.0 > 0.99% [kernel] [k] inet_dump_ifaddr > 0.94% libteam.so.5.6.1 [.] 0x0000000000006470 > 0.79% libc.so.6 [.] 0x0000000000186e57 > 0.71% [ixgbe] [k] ixgbe_update_mc_addr_list_generic > 0.65% [kernel] [k] __fget_files > 0.61% [kernel] [k] sock_poll > 0.57% libteam.so.5.6.1 [.] 0x0000000000009e7d > 0.51% perf [.] 0x00000000000bc7b3 > 0.51% libteam.so.5.6.1 [.] 0x0000000000006501 > 0.48% [kernel] [k] next_uptodate_page > 0.46% [kernel] [k] _raw_read_lock_bh > 0.43% libc.so.6 [.] 0x0000000000186eac > 0.42% bgpd [.] 0x0000000000070a46 > 0.41% [pppoe] [k] pppoe_flush_dev > 0.39% [kernel] [k] zap_pte_range > > > This happened when remove and add new interface on time of drop and reconnect users. > > > now : ip a command work fine ! > > > Martin > > >> On 14 Sep 2021, at 14:00, Florian Westphal <fw@...len.de> wrote: >> >> Martin Zaharinov <micron10@...il.com> wrote: >> >> [ Trimming CC list ] >> >>> Florian: >>> >>> If you make patch send to test please. >> >> Attached. No idea if it helps, but 'ip' should stay responsive >> even when masquerade processes netdevice events. >> <defer_masq_work.diff> >
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