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Date: Sun, 15 Oct 2017 17:03:30 +0200
From: Paweł Staszewski <pstaszewski@...are.pl>
To: Alexander Duyck <alexander.duyck@...il.com>
Cc: "Anders K. Pedersen | Cohaesio" <akp@...aesio.com>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
"alexander.h.duyck@...el.com" <alexander.h.duyck@...el.com>
Subject: Re: Linux 4.12+ memory leak on router with i40e NICs
Previously attached graphs was for:
4.14.0-rc4-next-20171012
from git:
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
In kernel drivers.
Just tested by replacing cards in server from 8x10G based on 82599 to
02:00.0 Ethernet controller: Intel Corporation Ethernet Controller X710
for 10GbE SFP+ (rev 01)
02:00.1 Ethernet controller: Intel Corporation Ethernet Controller X710
for 10GbE SFP+ (rev 01)
02:00.2 Ethernet controller: Intel Corporation Ethernet Controller X710
for 10GbE SFP+ (rev 01)
02:00.3 Ethernet controller: Intel Corporation Ethernet Controller X710
for 10GbE SFP+ (rev 01)
03:00.0 Ethernet controller: Intel Corporation Ethernet Controller X710
for 10GbE SFP+ (rev 02)
03:00.1 Ethernet controller: Intel Corporation Ethernet Controller X710
for 10GbE SFP+ (rev 02)
03:00.2 Ethernet controller: Intel Corporation Ethernet Controller X710
for 10GbE SFP+ (rev 02)
03:00.3 Ethernet controller: Intel Corporation Ethernet Controller X710
for 10GbE SFP+ (rev 02)
And with same configuration - have leaking memory somewhere - there is
no process that can
ps aux --sort -rss
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
root 5103 41.2 31.1 10357508 10242860 ? Sl Oct14 1010:33
/usr/local/sbin/bgpd -d -A 127.0.0.1 -u root -g root -I
--ignore_warnings -F /usr/local/etc/Quagga.conf -t
root 5094 0.0 0.8 295372 270868 ? Ss Oct14 1:26
/usr/local/sbin/zebra -d -A 127.0.0.1 -u root -g root -I
--ignore_warnings -F /usr/local/etc/Quagga.conf
root 4356 3.4 0.2 98780 75852 ? S Oct14 84:21
/usr/sbin/snmpd -p /var/run/snmpd.pid -Ln -I -smux
root 3448 0.0 0.0 32172 6204 ? Ss Oct14 0:00
/sbin/udevd --daemon
root 5385 0.0 0.0 61636 5044 ? Ss Oct14 0:00 sshd:
paol [priv]
root 4116 0.0 0.0 346312 4804 ? Ss Oct14 0:33
/usr/sbin/syslog-ng --persist-file /var/lib/syslog-ng/syslog-ng.persist
--cfgfile /etc/syslog-ng/syslog-ng.conf --pidfile /run/syslog-ng.pid
paol 5390 0.0 0.0 61636 3564 ? S Oct14 0:06 sshd:
paol@.../1
root 5403 0.0 0.0 709344 3520 ? Ssl Oct14 0:26
/opt/collectd/sbin/collectd
root 5397 0.0 0.0 18280 3288 pts/1 S Oct14 0:00 -su
root 4384 0.0 0.0 30472 3016 ? Ss Oct14 0:00
/usr/sbin/sshd
paol 5391 0.0 0.0 18180 2884 pts/1 Ss Oct14 0:00 -bash
root 5394 0.0 0.0 43988 2376 pts/1 S Oct14 0:00 su -
root 20815 0.0 0.0 17744 2312 pts/1 R+ 16:58 0:00 ps aux
--sort -rss
root 4438 0.0 0.0 28820 2256 ? S Oct14 0:00 teamd
-d -f /etc/teamd.conf
root 4030 0.0 0.0 6976 2024 ? Ss Oct14 0:00 mdadm
--monitor --scan --daemonise --pid-file /var/run/mdadm.pid --syslog
root 4408 0.0 0.0 16768 1884 ? Ss Oct14 0:00
/usr/sbin/cron
root 5357 0.0 0.0 120532 1724 tty6 Ss+ Oct14 0:00
/sbin/agetty 38400 tty6 linux
root 5352 0.0 0.0 120532 1712 tty1 Ss+ Oct14 0:00
/sbin/agetty 38400 tty1 linux
root 5356 0.0 0.0 120532 1692 tty5 Ss+ Oct14 0:00
/sbin/agetty 38400 tty5 linux
root 5353 0.0 0.0 120532 1648 tty2 Ss+ Oct14 0:00
/sbin/agetty 38400 tty2 linux
root 5355 0.0 0.0 120532 1628 tty4 Ss+ Oct14 0:00
/sbin/agetty 38400 tty4 linux
root 5354 0.0 0.0 120532 1620 tty3 Ss+ Oct14 0:00
/sbin/agetty 38400 tty3 linux
root 1 0.0 0.0 4184 1420 ? Ss Oct14 0:02 init [3]
root 4115 0.0 0.0 34336 608 ? S Oct14 0:00
supervising syslog-ng
root 2 0.0 0.0 0 0 ? S Oct14 0:00 [kthreadd]
root 4 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/0:0H]
root 6 0.0 0.0 0 0 ? I< Oct14 0:00
[mm_percpu_wq]
root 7 0.8 0.0 0 0 ? S Oct14 22:01
[ksoftirqd/0]
root 8 0.0 0.0 0 0 ? I Oct14 1:36 [rcu_sched]
root 9 0.0 0.0 0 0 ? I Oct14 0:00 [rcu_bh]
root 10 0.0 0.0 0 0 ? S Oct14 0:00
[migration/0]
root 11 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/0]
root 12 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/1]
root 13 0.0 0.0 0 0 ? S Oct14 0:00
[migration/1]
root 14 0.8 0.0 0 0 ? S Oct14 21:39
[ksoftirqd/1]
root 16 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/1:0H]
root 17 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/2]
root 18 0.0 0.0 0 0 ? S Oct14 0:00
[migration/2]
root 19 0.8 0.0 0 0 ? S Oct14 20:48
[ksoftirqd/2]
root 21 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/2:0H]
root 22 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/3]
root 23 0.0 0.0 0 0 ? S Oct14 0:00
[migration/3]
root 24 1.0 0.0 0 0 ? S Oct14 24:36
[ksoftirqd/3]
root 26 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/3:0H]
root 27 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/4]
root 28 0.0 0.0 0 0 ? S Oct14 0:00
[migration/4]
root 29 0.8 0.0 0 0 ? S Oct14 20:14
[ksoftirqd/4]
root 31 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/4:0H]
root 32 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/5]
root 33 0.0 0.0 0 0 ? S Oct14 0:00
[migration/5]
root 34 0.8 0.0 0 0 ? S Oct14 20:22
[ksoftirqd/5]
root 36 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/5:0H]
root 37 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/6]
root 38 0.0 0.0 0 0 ? S Oct14 0:00
[migration/6]
root 39 0.8 0.0 0 0 ? S Oct14 20:43
[ksoftirqd/6]
root 41 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/6:0H]
root 42 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/7]
root 43 0.0 0.0 0 0 ? S Oct14 0:00
[migration/7]
root 44 0.8 0.0 0 0 ? S Oct14 21:51
[ksoftirqd/7]
root 46 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/7:0H]
root 47 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/8]
root 48 0.0 0.0 0 0 ? S Oct14 0:00
[migration/8]
root 49 0.7 0.0 0 0 ? S Oct14 18:49
[ksoftirqd/8]
root 51 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/8:0H]
root 52 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/9]
root 53 0.0 0.0 0 0 ? S Oct14 0:00
[migration/9]
root 54 0.8 0.0 0 0 ? S Oct14 20:48
[ksoftirqd/9]
root 56 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/9:0H]
root 57 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/10]
root 58 0.0 0.0 0 0 ? S Oct14 0:00
[migration/10]
root 59 0.7 0.0 0 0 ? S Oct14 19:07
[ksoftirqd/10]
root 61 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/10:0H]
root 62 0.0 0.0 0 0 ? S Oct14 0:00 [cpuhp/11]
root 63 0.0 0.0 0 0 ? S Oct14 0:00
[migration/11]
root 64 0.8 0.0 0 0 ? S Oct14 19:54
[ksoftirqd/11]
root 66 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/11:0H]
root 67 0.0 0.0 0 0 ? S Oct14 0:00 [kdevtmpfs]
root 70 0.0 0.0 0 0 ? S Oct14 0:00 [kauditd]
root 410 0.0 0.0 0 0 ? S Oct14 0:00
[khungtaskd]
root 411 0.0 0.0 0 0 ? S Oct14 0:00
[oom_reaper]
root 412 0.0 0.0 0 0 ? I< Oct14 0:00 [writeback]
root 414 0.0 0.0 0 0 ? S Oct14 0:00
[kcompactd0]
root 415 0.0 0.0 0 0 ? SN Oct14 0:00 [ksmd]
root 416 0.0 0.0 0 0 ? SN Oct14 0:00
[khugepaged]
root 417 0.0 0.0 0 0 ? I< Oct14 0:00 [crypto]
root 419 0.0 0.0 0 0 ? I< Oct14 0:00 [kblockd]
root 1314 0.0 0.0 0 0 ? I< Oct14 0:00 [ata_sff]
root 1329 0.0 0.0 0 0 ? I< Oct14 0:00 [md]
root 1425 0.0 0.0 0 0 ? I< Oct14 0:00 [rpciod]
root 1426 0.0 0.0 0 0 ? I< Oct14 0:00 [xprtiod]
root 1515 0.0 0.0 0 0 ? S Oct14 0:00 [kswapd0]
root 1614 0.0 0.0 0 0 ? I< Oct14 0:00 [nfsiod]
root 1684 0.0 0.0 0 0 ? I< Oct14 0:00
[acpi_thermal_pm]
root 1801 0.0 0.0 0 0 ? S Oct14 0:00 [scsi_eh_0]
root 1802 0.0 0.0 0 0 ? I< Oct14 0:00
[scsi_tmf_0]
root 1806 0.0 0.0 0 0 ? S Oct14 0:00 [scsi_eh_1]
root 1807 0.0 0.0 0 0 ? I< Oct14 0:00
[scsi_tmf_1]
root 1810 0.0 0.0 0 0 ? S Oct14 0:00 [scsi_eh_2]
root 1811 0.0 0.0 0 0 ? I< Oct14 0:00
[scsi_tmf_2]
root 1814 0.0 0.0 0 0 ? S Oct14 0:00 [scsi_eh_3]
root 1815 0.0 0.0 0 0 ? I< Oct14 0:00
[scsi_tmf_3]
root 1838 0.0 0.0 0 0 ? S Oct14 0:00 [scsi_eh_4]
root 1839 0.0 0.0 0 0 ? I< Oct14 0:00
[scsi_tmf_4]
root 1842 0.0 0.0 0 0 ? S Oct14 0:00 [scsi_eh_5]
root 1843 0.0 0.0 0 0 ? I< Oct14 0:00
[scsi_tmf_5]
root 1846 0.0 0.0 0 0 ? S Oct14 0:00 [scsi_eh_6]
root 1847 0.0 0.0 0 0 ? I< Oct14 0:00
[scsi_tmf_6]
root 1850 0.0 0.0 0 0 ? S Oct14 0:00 [scsi_eh_7]
root 1851 0.0 0.0 0 0 ? I< Oct14 0:00
[scsi_tmf_7]
root 1854 0.0 0.0 0 0 ? S Oct14 0:00 [scsi_eh_8]
root 1855 0.0 0.0 0 0 ? I< Oct14 0:00
[scsi_tmf_8]
root 1858 0.0 0.0 0 0 ? S Oct14 0:00 [scsi_eh_9]
root 1859 0.0 0.0 0 0 ? I< Oct14 0:00
[scsi_tmf_9]
root 1921 0.0 0.0 0 0 ? I< Oct14 0:00 [ixgbe]
root 1923 0.0 0.0 0 0 ? I< Oct14 0:00 [i40e]
root 3058 0.0 0.0 0 0 ? I< Oct14 0:00
[ipv6_addrconf]
root 3087 0.0 0.0 0 0 ? S Oct14 0:01 [md3_raid1]
root 3092 0.0 0.0 0 0 ? S Oct14 0:00 [md2_raid1]
root 3097 0.0 0.0 0 0 ? S Oct14 0:00 [md1_raid1]
root 3099 0.0 0.0 0 0 ? I< Oct14 0:00
[reiserfs/md2]
root 3100 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/0:1H]
root 3124 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/6:1H]
root 3155 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/1:1H]
root 3244 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/11:1H]
root 3351 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/5:1H]
root 3467 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/8:1H]
root 3502 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/9:1H]
root 3503 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/2:1H]
root 3521 0.0 0.0 0 0 ? SN Oct14 0:00 [kipmi0]
root 3757 0.0 0.0 0 0 ? I< Oct14 0:00
[reiserfs/md3]
root 5096 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/10:1H]
root 5280 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/7:1H]
root 5447 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/3:1H]
root 6573 0.0 0.0 0 0 ? I 16:10 0:00
[kworker/3:0]
root 6584 0.0 0.0 0 0 ? I 16:11 0:00
[kworker/6:0]
root 6660 0.0 0.0 0 0 ? I< Oct14 0:00
[kworker/4:1H]
root 6967 0.0 0.0 0 0 ? I 16:15 0:00
[kworker/5:2]
root 6976 0.0 0.0 0 0 ? I 16:17 0:00
[kworker/10:1]
root 7036 0.0 0.0 0 0 ? I 06:19 0:02
[kworker/0:4]
root 7750 0.0 0.0 0 0 ? I 16:22 0:00
[kworker/4:2]
root 9555 0.0 0.0 0 0 ? I 16:25 0:00
[kworker/2:2]
root 9557 0.0 0.0 0 0 ? I 16:26 0:00
[kworker/6:2]
root 10146 0.0 0.0 0 0 ? I 16:27 0:00
[kworker/8:2]
root 10148 0.0 0.0 0 0 ? I 16:27 0:00
[kworker/1:2]
root 13804 0.0 0.0 0 0 ? I 13:42 0:00
[kworker/0:1]
root 16109 0.0 0.0 0 0 ? I 16:33 0:00
[kworker/9:2]
root 16156 0.0 0.0 0 0 ? I 16:39 0:00
[kworker/4:0]
root 16422 0.0 0.0 0 0 ? I 16:39 0:00
[kworker/5:1]
root 16423 0.0 0.0 0 0 ? I 16:39 0:00
[kworker/9:0]
root 17118 0.0 0.0 0 0 ? I 16:40 0:00
[kworker/11:2]
root 17250 0.0 0.0 0 0 ? I 16:42 0:00
[kworker/3:1]
root 17620 0.0 0.0 0 0 ? I 16:43 0:00
[kworker/0:0]
root 17629 0.0 0.0 0 0 ? I 16:45 0:00
[kworker/2:1]
root 17639 0.0 0.0 0 0 ? I 16:47 0:00
[kworker/u24:0]
root 17640 0.0 0.0 0 0 ? I 16:47 0:00
[kworker/10:0]
root 17642 0.0 0.0 0 0 ? I 16:48 0:00
[kworker/0:5]
root 19577 0.0 0.0 0 0 ? I 16:49 0:00
[kworker/8:1]
root 19578 0.0 0.0 0 0 ? I 16:49 0:00
[kworker/8:3]
root 19819 0.0 0.0 0 0 ? I 16:49 0:00
[kworker/1:1]
root 19820 0.0 0.0 0 0 ? I 16:49 0:00
[kworker/1:3]
root 19972 0.0 0.0 0 0 ? I 16:52 0:00
[kworker/7:1]
root 19973 0.0 0.0 0 0 ? I 16:52 0:00
[kworker/7:3]
root 19974 0.0 0.0 0 0 ? I 16:52 0:00
[kworker/11:1]
root 19976 0.0 0.0 0 0 ? I 16:52 0:00
[kworker/u24:1]
root 20106 0.0 0.0 0 0 ? I 16:53 0:00
[kworker/4:1]
root 20107 0.0 0.0 0 0 ? I 16:53 0:00
[kworker/4:3]
root 20108 0.0 0.0 0 0 ? I 16:54 0:00
[kworker/3:2]
root 20109 0.0 0.0 0 0 ? I 16:54 0:00
[kworker/3:3]
root 20110 0.0 0.0 0 0 ? I 16:54 0:00
[kworker/0:6]
root 20217 0.0 0.0 0 0 ? I 16:55 0:00
[kworker/1:0]
root 20219 0.0 0.0 0 0 ? I 16:56 0:00
[kworker/9:1]
root 20222 0.0 0.0 0 0 ? I 16:56 0:00
[kworker/9:3]
root 20354 0.0 0.0 0 0 ? I 16:57 0:00
[kworker/5:0]
root 20355 0.0 0.0 0 0 ? I 16:57 0:00
[kworker/5:3]
root 20814 0.0 0.0 0 0 ? I 16:57 0:00
[kworker/u24:2]
root 26845 0.0 0.0 0 0 ? I 15:40 0:00
[kworker/7:2]
root 26979 0.0 0.0 0 0 ? I 15:43 0:00
[kworker/0:3]
root 27375 0.0 0.0 0 0 ? I 15:48 0:00
[kworker/0:2]
but free -m
free -m
total used free shared buff/cache
available
Mem: 32113 18345 13598 0 169 13419
Swap: 3911 0 3911
less and less about 0.5MB per hour
it looks like this commit:
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/drivers/net/ethernet/intel/i40e/i40e_txrx.c?id=2b9478ffc550f17c6cd8c69057234e91150f5972
Is not included in:
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
Ok will upgrade tomorrow - and will check with that fix.
W dniu 2017-10-15 o 02:58, Alexander Duyck pisze:
> Hi Pawel,
>
> To clarify is that Dave Miller's tree or Linus's that you are talking
> about? If it is Dave's tree how long ago was it you pulled it since I
> think the fix was just pushed by Jeff Kirsher a few days ago.
>
> The issue should be fixed in the following commit:
> https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/drivers/net/ethernet/intel/i40e/i40e_txrx.c?id=2b9478ffc550f17c6cd8c69057234e91150f5972
>
> Thanks.
>
> - Alex
>
> On Sat, Oct 14, 2017 at 3:03 PM, Paweł Staszewski <pstaszewski@...are.pl> wrote:
>> Forgot to add - this graphs are tested with Kernel 4.14-rc4-next
>>
>>
>> W dniu 2017-10-15 o 00:00, Paweł Staszewski pisze:
>>
>> Same problem here
>>
>> Also only difference is change 82599 intel to x710 and have memleak
>>
>> mem with ixgbe driver over time - same config saame kernel
>>
>>
>>
>> changed NIC's to x710 i40e driver (this is the only change)
>>
>> And mem over time:
>>
>>
>>
>> There is no process that is eating memory - looks like there is some problem
>> with i40e driver - but it not a surprise :) this driver is really buggy -
>> with many things - most tickets on e1000e sourceforge that i openned have no
>> reply for year or more - or if somebody reply after year they are closing
>> ticket after 1 day with info about no activity :)
>>
>>
>>
>> W dniu 2017-10-05 o 07:19, Anders K. Pedersen | Cohaesio pisze:
>>
>> On ons, 2017-10-04 at 08:32 -0700, Alexander Duyck wrote:
>>
>> On Wed, Oct 4, 2017 at 5:56 AM, Anders K. Pedersen | Cohaesio
>> <akp@...aesio.com> wrote:
>>
>> Hello,
>>
>> After updating one of our Linux based routers to kernel 4.13 it
>> began
>> leaking memory quite fast (about 1 GB every half hour). To narrow
>> we
>> tried various kernel versions and found that 4.11.12 is okay, while
>> 4.12 also leaks, so we did a bisection between 4.11 and 4.12.
>>
>> The first bisection ended at
>> "[6964e53f55837b0c49ed60d36656d2e0ee4fc27b] i40e: fix handling of
>> HW
>> ATR eviction", which fixes some flag handling that was broken by
>> 47994c119a36 "i40e: remove hw_disabled_flags in favor of using
>> separate
>> flag bits", so I did a second bisection, where I added 6964e53f5583
>> "i40e: fix handling of HW ATR eviction" to the steps that had
>> 47994c119a36 "i40e: remove hw_disabled_flags in favor of using
>> separate
>> flag bits" in them.
>>
>> The second bisection ended at
>> "[0e626ff7ccbfc43c6cc4aeea611c40b899682382] i40e: Fix support for
>> flow
>> director programming status", where I don't see any obvious
>> problems,
>> so I'm hoping for some assistance.
>>
>> The router is a PowerEdge R730 server (Haswell based) with three
>> Intel
>> NICs (all using the i40e driver):
>>
>> X710 quad port 10 GbE SFP+: eth0 eth1 eth2 eth3
>> X710 quad port 10 GbE SFP+: eth4 eth5 eth6 eth7
>> XL710 dual port 40 GbE QSFP+: eth8 eth9
>>
>> The NICs are aggregated with LACP with the team driver:
>>
>> team0: eth9 (40 GbE selected primary), and eth3, eth7 (10 GbE non-
>> selected backups)
>> team1: eth0, eth1, eth4, eth5 (all 10 GbE selected)
>>
>> team0 is used for internal networks and has one untagged and four
>> tagged VLAN interfaces, while team1 has an external uplink
>> connection
>> without any VLANs.
>>
>> The router runs an eBGP session on team1 to one of our uplinks, and
>> iBGP via team0 to our other border routers. It also runs OSPF on
>> the
>> internal VLANs on team0. One thing I've noticed is that when OSPF
>> is
>> not announcing a default gateway to the internal networks, so there
>> is
>> almost no traffic coming in on team0 and out on team1, but still
>> plenty
>> of traffic coming in on team1 and out via team0, there's no memory
>> leak
>> (or at least it is so small that we haven't detected it). But as
>> soon
>> as we configure OSPF to announce a default gateway to the internal
>> VLANs, so we get traffic from team0 to team1 the leaking begins.
>> Stopping the OSPF default gateway announcement again also stops the
>> leaking, but does not release already leaked memory.
>>
>> So this leads to me suspect that the leaking is related to RX on
>> team0
>> (where XL710 eth9 is normally the only active interface) or TX on
>> team1
>> (X710 eth0, eth1, eth4, eth5). The first bad commit is related to
>> RX
>> cleaning, which suggests RX on team0. Since we're only seeing the
>> leak
>> for our outbound traffic, I suspect either a difference between the
>> X710 vs. XL710 NICs, or that the inbound traffic is for relatively
>> few
>> destination addresses (only our own systems) while the outbound
>> traffic
>> is for many different addresses on the internet. But I'm just
>> guessing
>> here.
>>
>> I've tried kmemleak, but it only found a few kB of suspected memory
>> leaks (several of which disappeared again after a while).
>>
>> Below I've included more details - git bisect logs, ethtool -i,
>> dmesg,
>> Kernel .config, and various memory related /proc files. Any help or
>> suggestions would be much appreciated, and please let me know if
>> more
>> information is needed or there's something I should try.
>>
>> Regards,
>> Anders K. Pedersen
>>
>> Hi Anders,
>>
>> I think I see the problem and should have a patch submitted shortly
>> to
>> address it. From what I can tell it looks like the issue is that we
>> weren't properly recycling the pages associated with descriptors that
>> contained an Rx programming status. For now the workaround would be
>> to
>> try disabling ATR via the "ethtool --set-priv-flags" command. I
>> should
>> have a patch out in the next hour or so that you can try testing to
>> verify if it addresses the issue.
>>
>> Thanks.
>>
>> - Alex
>>
>> Thanks Alex,
>>
>> I will test the patch in our next service window on Tuesday morning.
>>
>> Regards,
>> Anders
>>
>>
>>
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