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From: Yasin CANER <yasin.caner@ulakhaberlesme.com.tr>
To: "users@dpdk.org" <users@dpdk.org>
Subject: RE: DPDK 22.11 - How to fix memory leak for KNI - How to debug
Thread-Topic: DPDK 22.11 - How to fix memory leak for KNI - How to debug
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Hello all,
I got issue, may be there is a missing solution in rte_kni.c or other parts=
.
There is not any function to free kni allocated bufs and rte_pktmbuf_free i=
s not enough to handle it. (kni_free_mbufs is not reachable.)
In default-testing kni application works as below
1. Call rte_kni_rx_burst function to get messages
2. Then push to other KNI interface via rte_kni_tx_burst. There is no me=
mory-leak because kni_free_mbufs is called and freed unused allocations.
On the other hand, in my scenario
1. Call rte_kni_rx_burst func to get messages, burst_size is 32 but 1 pa=
cket is received from Kernel
2. Then try to free all messages via rte_pktmbuf_free
3. Freed 1 unit and 31 unit is not freed. memory leak
Other scenario,
1. Call rte_kni_rx_burst func to get messages, burst_size is 32 but 1 p=
acket is received from Kernel
2. Push to ethernet_device via rte_eth_tx_burst
3. There is not any free operation by rte_eth_tx_burst
4. Try to free via rte_pktmbuf_free
5. 1 unit is freed 31 unit is left in memory. Still memory leak
What i am missing ? I think same issue happens in version 17.11 .
unsigned
rte_kni_tx_burst(struct rte_kni *kni, struct rte_mbuf **mbufs, unsigned int=
num)
{
num =3D RTE_MIN(kni_fifo_free_count(kni->rx_q), num);
void *phy_mbufs[num];
unsigned int ret;
unsigned int i;
for (i =3D 0; i < num; i++)
phy_mbufs[i] =3D va2pa_all(mbufs[i]);
ret =3D kni_fifo_put(kni->rx_q, phy_mbufs, num);
/* Get mbufs from free_q and then free them */
kni_free_mbufs(kni); <-------- Here is freeing unused alloca=
tions.
return ret;
}
unsigned
rte_kni_rx_burst(struct rte_kni *kni, struct rte_mbuf **mbufs, unsigned int=
num)
{
unsigned int ret =3D kni_fifo_get(kni->tx_q, (void **)mbufs, =
num);
/* If buffers removed, allocate mbufs and then put them into =
alloc_q */
if (ret)
kni_allocate_mbufs(kni);
return ret;
}
static void
kni_free_mbufs(struct rte_kni *kni)
{
int i, ret;
struct rte_mbuf *pkts[MAX_MBUF_BURST_NUM];
ret =3D kni_fifo_get(kni->free_q, (void **)pkts, MAX_MBUF_BUR=
ST_NUM); <<<--- to free all allocated memory needs to use this function. =
(kni->free_q)
if (likely(ret > 0)) {
for (i =3D 0; i < ret; i++)
rte_pktmbuf_free(pkts[i]);
}
}
Best Regards.
___
Yasin CANER
Lider M=FChendis
Ulak Haberle=FEme A.=DE. Ankara
From: Yasin CANER
Sent: Thursday, May 4, 2023 10:32 AM
To: users@dpdk.org
Subject: DPDK 22.11 - How to fix memory leak for KNI - How to debug
Hello all,
I think there is a memory leak for KNI.
Firstly, try to active trace mod=FCle to follow memory management but could=
not. =DDt doesn't create file and dont have any clue.
Run Command : -c dpdk_core_mask -d librte_net_virtio.so -d librte_mbuf.so -=
d librte_mempool.so -d librte_mempool_ring.so -d librte_mempool_stack.so -d=
librte_mempool_bucket.so -d librte_kni.so --log-level lib.kni:debug --log-=
level lib.eal:debug --log-level lib.ethdev:debug --trace=3Dkni --trace-dir=
=3D/tmp/
Secondly, I used followed functions.
``code
used_mpool =3D rte_mempool_in_use_count(rdpdk_cfg->mbuf_pool);
count_mpool =3D rte_mempool_avail_count(rdpdk_cfg->mbuf_pool);
``
After calling function rte_kni_rx_burst, 32 unit is allocated. Then i force=
to free message_buf (mbuf). It frees 1 unit. 31 units left in memory!
How to fix or understand this issue.
Follow logs,
1. (59383) 6:55:10 lrtc():3212> [KNI]Picked up 1 packets from port 0=
[KNI:F000] --> 1 packet is received from Kernel that is allocate 32 unit
2. (59383) 6:55:10 print_mempool_tx():2511> [UseCount_mpool:468][avai=
l_mpool:9931]
3. (59383) 6:55:10 pkni():2536> [KNI] i:0/1
4. (59383) 6:55:10 pkni():2616> [KNI][EGR] P:[IPv6] P:[0] [fe80::f=
816:3eff:fe93:f5fd]->[ff02::2] --> Packet is a broadcast packet IPv6
5. (59383) 6:55:10 pkni():2620> [KNI][EGR][pkt-len:70]
6. (59383) 6:55:10 print_mempool_tx():2511> [UseCount_mpool:467][avai=
l_mpool:9932] --> mbuf is freed to understand mem-leak. =DDt is same happen=
s after calling rte_eth_tx_burst
7. (59383) 6:55:10 lrtc():3212> [KNI]Picked up 1 packets from port 1=
[KNI:F000] --> 1 packet is received from Kernel that is allocate 32 unit 9=
932 to 9900 then same process happens and 31 units is not freed.
8. (59383) 6:55:10 print_mempool_tx():2511> [UseCount_mpool:499][avai=
l_mpool:9900]
9. (59383) 6:55:10 pkni():2536> [KNI] i:0/1
10. (59383) 6:55:10 pkni():2616> [KNI][EGR] P:[IPv6] P:[1] [fe80:=
:f816:3eff:fed2:9101]->[ff02::2]
11. (59383) 6:55:10 pkni():2620> [KNI][EGR][pkt-len:70]
12. (59383) 6:55:10 print_mempool_tx():2511> [UseCount_mpool:498][avai=
l_mpool:9901]
Kernel : 5.4.0-146-generic #163-Ubuntu SMP Fri Mar 17 18:26:02 UTC 2023 x86=
_64 x86_64 x86_64 GNU/Linux
Ubuntu 20.04
DPDK dpdk-stable-22.11.1
=DDgb_uio is used.
Best regards.
___
Yasin CANER
Lider M=FChendis
Ulak Haberle=FEme A.=DE. Ankara
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<div class=3D"WordSection1">
<p class=3D"MsoNormal">Hello all,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I got issue, may be there is a missing solution in r=
te_kni.c or other parts.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">There is not any function to free kni allocated bufs=
and rte_pktmbuf_free is not enough to handle it. (kni_free_mbufs is not re=
achable.)<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">In default-testing kni application works as below<o:=
p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<ol style=3D"margin-top:0cm" start=3D"1" type=3D"1">
<li class=3D"MsoListParagraph" style=3D"margin-left:0cm;mso-list:l1 level1 =
lfo4">Call rte_kni_rx_burst function to get messages<o:p></o:p></li><li cla=
ss=3D"MsoListParagraph" style=3D"margin-left:0cm;mso-list:l1 level1 lfo4">T=
hen push to other KNI interface via rte_kni_tx_burst. There is no memory-le=
ak because kni_free_mbufs is called and freed unused allocations.<o:p=
></o:p></li></ol>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">On the other hand, in my scenario<span lang=3D"EN-US=
"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<ol style=3D"margin-top:0cm" start=3D"1" type=3D"1">
<li class=3D"MsoListParagraph" style=3D"margin-left:-8.0pt;mso-list:l2 leve=
l1 lfo5">Call rte_kni_rx_burst func to get messages, burst_size is 32 but 1=
packet is received from Kernel<o:p></o:p></li><li class=3D"MsoListParagrap=
h" style=3D"margin-left:-8.0pt;mso-list:l2 level1 lfo5">Then try to free al=
l messages via rte_pktmbuf_free<o:p></o:p></li><li class=3D"MsoListParagrap=
h" style=3D"margin-left:-8.0pt;mso-list:l2 level1 lfo5">Freed 1 unit and 31=
unit is not freed. memory leak<o:p></o:p></li></ol>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Other scenario,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<ol style=3D"margin-top:0cm" start=3D"1" type=3D"1">
<li class=3D"MsoListParagraph" style=3D"margin-left:-8.0pt;mso-list:l4 leve=
l1 lfo6">Call rte_kni_rx_burst func to get messages, burst_size is 32=
but 1 packet is received from Kernel<o:p></o:p></li><li class=3D"MsoListPa=
ragraph" style=3D"margin-left:-8.0pt;mso-list:l4 level1 lfo6">Push to ether=
net_device via rte_eth_tx_burst
<o:p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:-8.0pt;=
mso-list:l4 level1 lfo6">There is not any free operation by rte_eth_tx_burs=
t<o:p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:-8.0pt=
;mso-list:l4 level1 lfo6">Try to free via rte_pktmbuf_free<o:p></o:p></li><=
li class=3D"MsoListParagraph" style=3D"margin-left:-8.0pt;mso-list:l4 level=
1 lfo6">1 unit is freed 31 unit is left in memory. Still memory leak<o:p></=
o:p></li></ol>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">What i am missing ? I think same issue happens in ve=
rsion 17.11 .<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">unsigned<o:p></o:p></p>
<p class=3D"MsoNormal">rte_kni_tx_burst(struct rte_kni *kni, struct rte_mbu=
f **mbufs, unsigned int num)<o:p></o:p></p>
<p class=3D"MsoNormal">{<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; num =3D RTE_MIN(kni_fifo_free_count(kni->rx_q=
), num);<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; void *phy_mbufs[num];<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; unsigned int ret;<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; unsigned int i;<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; for (i =3D 0; i < num; i++)<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; &=
nbsp; phy_mbufs[i] =3D va2pa_all(mbufs[i]);<o=
:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; ret =3D kni_fifo_put(kni->rx_q, phy_mbufs, nu=
m);<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; /* Get mbufs from free_q and then free them */<o=
:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; kni_free_mbufs(kni); <span style=3D"font-f=
amily:Wingdings">
=DF</span>------ Here is freeing unused allocations. <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; return ret;<o:p></o:p></p>
<p class=3D"MsoNormal">}<o:p></o:p></p>
<p class=3D"MsoNormal">unsigned<o:p></o:p></p>
<p class=3D"MsoNormal">rte_kni_rx_burst(struct rte_kni *kni, struct rte_mbu=
f **mbufs, unsigned int num)<o:p></o:p></p>
<p class=3D"MsoNormal">{<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; unsigned int ret =3D kni_fifo_get(kni->tx_q, =
(void **)mbufs, num);<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; /* If buffers removed, allocate mbufs and then p=
ut them into alloc_q */<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; if (ret)<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; &=
nbsp; kni_allocate_mbufs(kni);<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; return ret;<o:p></o:p></p>
<p class=3D"MsoNormal">}<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">static void<o:p></o:p></p>
<p class=3D"MsoNormal">kni_free_mbufs(struct rte_kni *kni)<o:p></o:p></p>
<p class=3D"MsoNormal">{<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; int i, ret;<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; struct rte_mbuf *pkts[MAX_MBUF_BURST_NUM];<o:p><=
/o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; ret =3D kni_fifo_get(kni->free_q, (void **)pk=
ts, MAX_MBUF_BURST_NUM); <<<span style=3D"font-family:Win=
gdings">=DF</span>- to free all allocated memory needs to use this function=
. (kni->free_q)<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; if (likely(ret > 0)) {<o:p></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; &=
nbsp; for (i =3D 0; i < ret; i++)<o:p></o:=
p></p>
<p class=3D"MsoNormal"> &nbs=
p; &=
nbsp; &nbs=
p; rte_pktmbuf_free(pkts[i]);<o:p=
></o:p></p>
<p class=3D"MsoNormal"> &nbs=
p; }<o:p></o:p></p>
<p class=3D"MsoNormal">}<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Best Regards.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<div>
<p class=3D"MsoNormal"><span style=3D"mso-ligatures:none;mso-fareast-langua=
ge:TR">___<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-ligatures:none;mso-fareast-langua=
ge:TR">Yasin CANER<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-ligatures:none;mso-fareast-langua=
ge:TR">Lider M=FChendis<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-ligatures:none;mso-fareast-langua=
ge:TR">Ulak Haberle=FEme A.=DE. Ankara<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"mso-ligatures:none;mso-fareast-lan=
guage:TR">From:</span></b><span style=3D"mso-ligatures:none;mso-fareast-lan=
guage:TR"> Yasin CANER
<br>
<b>Sent:</b> Thursday, May 4, 2023 10:32 AM<br>
<b>To:</b> users@dpdk.org<br>
<b>Subject:</b> DPDK 22.11 - How to fix memory leak for KNI - How to debug<=
o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Hello all,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I think there is a memory leak for KNI. <o:p></o:p><=
/p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Firstly, try to active trace mod=FCle to follow memo=
ry management but could not. =DDt doesn’t create file and dont have a=
ny clue.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Run Command : -c dpdk_core_mask -d librte_net_virtio=
.so -d librte_mbuf.so -d librte_mempool.so -d librte_mempool_ring.so -d lib=
rte_mempool_stack.so -d librte_mempool_bucket.so -d librte_kni.so --log-lev=
el lib.kni:debug --log-level lib.eal:debug
--log-level lib.ethdev:debug --trace=3Dkni --trace-dir=3D/tmp/<o:p></o:p><=
/p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Secondly, I used followed functions.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">``code<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"line-height:14.25pt;background:#1E1E1E"><sp=
an style=3D"font-size:10.5pt;font-family:Consolas;color:#D4D4D4;mso-ligatur=
es:none;mso-fareast-language:TR"> </span><span style=3D"font-siz=
e:10.5pt;font-family:Consolas;color:#9CDCFE;mso-ligatures:none;mso-fareast-=
language:TR">used_mpool</span><span style=3D"font-size:10.5pt;font-family:C=
onsolas;color:#D4D4D4;mso-ligatures:none;mso-fareast-language:TR"> &nb=
sp;=3D </span><span style=3D"font-size:10.5pt;font-family:Consolas;col=
or:#DCDCAA;mso-ligatures:none;mso-fareast-language:TR">rte_mempool_in_use_c=
ount</span><span style=3D"font-size:10.5pt;font-family:Consolas;color:#D4D4=
D4;mso-ligatures:none;mso-fareast-language:TR">(</span><span style=3D"font-=
size:10.5pt;font-family:Consolas;color:#9CDCFE;mso-ligatures:none;mso-farea=
st-language:TR">rdpdk_cfg</span><span style=3D"font-size:10.5pt;font-family=
:Consolas;color:#D4D4D4;mso-ligatures:none;mso-fareast-language:TR">-></=
span><span style=3D"font-size:10.5pt;font-family:Consolas;color:#9CDCFE;mso=
-ligatures:none;mso-fareast-language:TR">mbuf_pool</span><span style=3D"fon=
t-size:10.5pt;font-family:Consolas;color:#D4D4D4;mso-ligatures:none;mso-far=
east-language:TR">);<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"line-height:14.25pt;background:#1E1E1E"><sp=
an style=3D"font-size:10.5pt;font-family:Consolas;color:#D4D4D4;mso-ligatur=
es:none;mso-fareast-language:TR"> </span><span style=3D"font-siz=
e:10.5pt;font-family:Consolas;color:#9CDCFE;mso-ligatures:none;mso-fareast-=
language:TR">count_mpool</span><span style=3D"font-size:10.5pt;font-family:=
Consolas;color:#D4D4D4;mso-ligatures:none;mso-fareast-language:TR"> =
=3D </span><span style=3D"font-size:10.5pt;font-family:Consolas;color:=
#DCDCAA;mso-ligatures:none;mso-fareast-language:TR">rte_mempool_avail_count=
</span><span style=3D"font-size:10.5pt;font-family:Consolas;color:#D4D4D4;m=
so-ligatures:none;mso-fareast-language:TR">(</span><span style=3D"font-size=
:10.5pt;font-family:Consolas;color:#9CDCFE;mso-ligatures:none;mso-fareast-l=
anguage:TR">rdpdk_cfg</span><span style=3D"font-size:10.5pt;font-family:Con=
solas;color:#D4D4D4;mso-ligatures:none;mso-fareast-language:TR">-></span=
><span style=3D"font-size:10.5pt;font-family:Consolas;color:#9CDCFE;mso-lig=
atures:none;mso-fareast-language:TR">mbuf_pool</span><span style=3D"font-si=
ze:10.5pt;font-family:Consolas;color:#D4D4D4;mso-ligatures:none;mso-fareast=
-language:TR">);<o:p></o:p></span></p>
<p class=3D"MsoNormal">``<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">After calling function rte_kni_rx_burst, 32 unit is =
allocated. Then i force to free message_buf (mbuf). It frees 1 unit. 31 uni=
ts left in memory!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">How to fix or understand this issue.<o:p></o:p></p>
<p class=3D"MsoNormal">Follow logs,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<ol style=3D"margin-top:0cm" start=3D"1" type=3D"1">
<li class=3D"MsoListParagraph" style=3D"margin-left:-15.5pt;mso-list:l0 lev=
el1 lfo3">
(59383) 6:55:10 lrtc():3212> [KNI]Picked up 1 pa=
ckets from port 0 [KNI:F000]
<span style=3D"font-family:Wingdings">=E0</span> 1 packet is received from =
Kernel that is allocate 32 unit<o:p></o:p></li><li class=3D"MsoListParagrap=
h" style=3D"margin-left:-15.5pt;mso-list:l0 level1 lfo3">
(59383) 6:55:10 print_mempool_tx():2511> [UseCount_mpo=
ol:468][avail_mpool:9931]<o:p></o:p></li><li class=3D"MsoListParagraph" sty=
le=3D"margin-left:-15.5pt;mso-list:l0 level1 lfo3">
(59383) 6:55:10 pkni():2536> [KNI] i:0/1<o:p></o=
:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:-15.5pt;mso-lis=
t:l0 level1 lfo3">
(59383) 6:55:10 pkni():2616> [KNI][EGR] P:=
[IPv6] P:[0] [fe80::f816:3eff:fe93:f5fd]->[ff02::2]
<span style=3D"font-family:Wingdings">=E0</span> Packet is a broadcast pack=
et IPv6<o:p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:=
-15.5pt;mso-list:l0 level1 lfo3">
(59383) 6:55:10 pkni():2620> [KNI][EGR][pkt-len:=
70]<o:p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:-15.=
5pt;mso-list:l0 level1 lfo3">
(59383) 6:55:10 print_mempool_tx():2511> [UseCount_mpo=
ol:467][avail_mpool:9932]
<span style=3D"font-family:Wingdings">=E0</span> mbuf is freed to understan=
d mem-leak. =DDt is same happens after calling rte_eth_tx_burst<o:p></o:p><=
/li><li class=3D"MsoListParagraph" style=3D"margin-left:-15.5pt;mso-list:l0=
level1 lfo3">
(59383) 6:55:10 lrtc():3212> [KNI]Picked up 1 pa=
ckets from port 1 [KNI:F000] <span style=3D"font-family:Wingdings">
=E0</span> 1 packet is received from Kernel that is allocate 32 unit 9932 t=
o 9900 then same process happens and 31 units is not freed.<o:p></o:p></li>=
<li class=3D"MsoListParagraph" style=3D"margin-left:-15.5pt;mso-list:l0 lev=
el1 lfo3">
(59383) 6:55:10 print_mempool_tx():2511> [UseCount_mpo=
ol:499][avail_mpool:9900]<o:p></o:p></li><li class=3D"MsoListParagraph" sty=
le=3D"margin-left:-15.5pt;mso-list:l0 level1 lfo3">
(59383) 6:55:10 pkni():2536> [KNI] i:0/1<o:p></o=
:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:-15.5pt;mso-lis=
t:l0 level1 lfo3">
(59383) 6:55:10 pkni():2616> [KNI][EGR] P:=
[IPv6] P:[1] [fe80::f816:3eff:fed2:9101]->[ff02::2]<o:=
p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:-15.5pt;ms=
o-list:l0 level1 lfo3">
(59383) 6:55:10 pkni():2620> [KNI][EGR][pkt-len:=
70]<o:p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:-15.=
5pt;mso-list:l0 level1 lfo3">
(59383) 6:55:10 print_mempool_tx():2511> [UseCount_mpo=
ol:498][avail_mpool:9901]<o:p></o:p></li></ol>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Kernel : 5.4.0-146-generic #163-Ubuntu SMP Fri Mar 1=
7 18:26:02 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux<o:p></o:p></p>
<p class=3D"MsoNormal">Ubuntu 20.04<o:p></o:p></p>
<p class=3D"MsoNormal">DPDK dpdk-stable-22.11.1<o:p></o:p></p>
<p class=3D"MsoNormal">=DDgb_uio is used.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Best regards.<o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"mso-ligatures:none;mso-fareast-langua=
ge:TR">___<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-ligatures:none;mso-fareast-langua=
ge:TR">Yasin CANER<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-ligatures:none;mso-fareast-langua=
ge:TR">Lider M=FChendis<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-ligatures:none;mso-fareast-langua=
ge:TR">Ulak Haberle=FEme A.=DE. Ankara<o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
</div>
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