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Date: Wed, 8 Sep 2010 19:39:58 +0530
From: Anand Raj Manickam <anandrm@...il.com>
To: Eric Dumazet <eric.dumazet@...il.com>
Cc: netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
shemminger@...tta.com
Subject: Re: Kernel Panic on OOM with 10 HTB rules
Please find the info below ... its a long list though
On Wed, Sep 8, 2010 at 6:12 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> Le mercredi 08 septembre 2010 à 16:22 +0530, Anand Raj Manickam a
> écrit :
>> Hi,
>>
>> I m struck with
>> Kernel Panic - Out of Memory Issue when traffic is more than 100k
>> pps and have around 10 tc rules.
>>
>> There is NO kernel panic with 1 tc rule .
>>
>> I using a 2.6.34.6 ( latest stable kernel) with SMP enabled
>>
>> The rules are simple -
>> 10 iptable rules :
>> iptables -t mangle -I FORWARD -s x.x.x.x -j CLASSIFY --set-class 0xz:0xy
>>
>> 10 tc rules :
>> tc class add dev imq0 parent 1:z classid 1:y htb rate 2kbit ceil 32768kbps
>>
>> I m using Intel Xeon Quad core x5570, 12GB RAM , with 8 e1000e , irq
>> affined ( 1 pair per core)
>>
>> There is NO issue / CRASH with multiple iptable rules marking to the
>> same tc rule/HTB class , i can sucessfully pass more than 200k pps /
>> 800Mbps traffic .
>>
>> But when each iptable rule is marking to seprate tc rule/HTB class and
>> when the traffic exceeds 100K pps / 20000 connections per second , we
>> hit this Out of Memory - Kernel panic condition .
>> Any help is appreciated . Do let me know if any more further
>> information is need.
>
> Hi Anand
>
> Could you give :
>
> 1) A complete stack trace / panic report
Sorry there was no stack trace :-(
e5570#Out of memory: kill process 10240 (apache2) score 58700 or a child
Killed process 10240 (apache2) vsz:234800kB, anon-rss:1576kB, file-rss:1212kB
Out of memory: kill process 10241 (apache2) score 58700 or a child
Killed process 10241 (apache2) vsz:234800kB, anon-rss:1576kB, file-rss:1232kB
Out of memory: kill process 16120 (java) score 19383 or a child
Killed process 16120 (java) vsz:1240516kB, anon-rss:161428kB, file-rss:7516kB
Out of memory: kill process 2185 (mysqld) score 16377 or a child
Killed process 2185 (mysqld) vsz:131020kB, anon-rss:15392kB, file-rss:5144kB
Out of memory: kill process 10238 (apache2) score 3630 or a child
Killed process 21304 (tcstat_total.cg) vsz:2848kB, anon-rss:192kB,
file-rss:1016kB
Out of memory: kill process 10238 (apache2) score 3273 or a child
Killed process 10238 (apache2) vsz:13092kB, anon-rss:1408kB, file-rss:624kB
Out of memory: kill process 21315 (tcstat_total.cg) score 712 or a child
Killed process 21315 (tcstat_total.cg) vsz:2848kB, anon-rss:192kB,
file-rss:196kB
Out of memory: kill process 1983 (rsyslogd) score 449 or a child
Killed process 1983 (rsyslogd) vsz:28744kB, anon-rss:784kB, file-rss:912kB
Out of memory: kill process 10236 (apache2) score 208 or a child
Killed process 10236 (apache2) vsz:13320kB, anon-rss:1412kB, file-rss:1332kB
Out of memory: kill process 4051 (login) score 77 or a child
Killed process 4831 (bash) vsz:4556kB, anon-rss:396kB, file-rss:1336kB
Out of memory: kill process 2728 (cron) score 58 or a child
Killed process 2728 (cron) vsz:3716kB, anon-rss:156kB, file-rss:628kB
Out of memory: kill process 2068 (mysqld_safe) score 45 or a child
Killed process 2068 (mysqld_safe) vsz:2904kB, anon-rss:248kB, file-rss:1084kB
Out of memory: kill process 4051 (login) score 41 or a child
Killed process 4051 (login) vsz:2680kB, anon-rss:252kB, file-rss:948kB
Out of memory: kill process 2313 (inetd) score 31 or a child
Killed process 2313 (inetd) vsz:2004kB, anon-rss:92kB, file-rss:496kB
Out of memory: kill process 4045 (getty) score 28 or a child
Killed process 4045 (getty) vsz:1816kB, anon-rss:68kB, file-rss:400kB
Out of memory: kill process 4046 (getty) score 28 or a child
Killed process 4046 (getty) vsz:1816kB, anon-rss:72kB, file-rss:400kB
Out of memory: kill process 4047 (getty) score 28 or a child
Killed process 4047 (getty) vsz:1816kB, anon-rss:72kB, file-rss:400kB
Out of memory: kill process 4048 (getty) score 28 or a child
Killed process 4048 (getty) vsz:1816kB, anon-rss:72kB, file-rss:400kB
Out of memory: kill process 4049 (getty) score 28 or a child
Killed process 4049 (getty) vsz:1816kB, anon-rss:68kB, file-rss:400kB
Out of memory: kill process 4050 (getty) score 28 or a child
Killed process 4050 (getty) vsz:1816kB, anon-rss:68kB, file-rss:400kB
Kernel panic - not syncing: Out of memory and no killable processes...
> 2) cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3
0: 250 0 0 0 IO-APIC-edge timer
1: 0 0 0 2 IO-APIC-edge i8042
2: 0 0 0 0 XT-PIC-XT cascade
4: 0 0 0 226 IO-APIC-edge serial
8: 0 0 0 2 IO-APIC-edge rtc0
12: 0 0 0 3 IO-APIC-edge i8042
19: 0 10673 0 0 IO-APIC-fasteoi ata_piix
33: 0 0 0 0 PCI-MSI-edge pciehp
34: 0 0 0 0 PCI-MSI-edge pciehp
35: 0 0 0 1 PCI-MSI-edge pciehp
36: 1 0 0 0 PCI-MSI-edge pciehp
37: 1 0 0 0 PCI-MSI-edge pciehp
38: 0 1 0 0 PCI-MSI-edge pciehp
39: 94 0 0 0 PCI-MSI-edge eth0
40: 88 6 0 0 PCI-MSI-edge eth1
41: 0 88 6 0 PCI-MSI-edge eth2
42: 0 88 6 0 PCI-MSI-edge eth3
43: 0 0 92 0 PCI-MSI-edge eth4-rx-0
44: 0 0 0 0 PCI-MSI-edge eth4-tx-0
45: 3 0 0 0 PCI-MSI-edge eth4
46: 0 4 88 0 PCI-MSI-edge eth5-rx-0
47: 0 0 0 0 PCI-MSI-edge eth5-tx-0
48: 0 0 3 0 PCI-MSI-edge eth5
49: 0 0 4 88 PCI-MSI-edge eth6-rx-0
50: 0 0 0 0 PCI-MSI-edge eth6-tx-0
51: 0 0 0 3 PCI-MSI-edge eth6
52: 4 0 0 88 PCI-MSI-edge eth7-rx-0
53: 0 0 0 0 PCI-MSI-edge eth7-tx-0
54: 0 3 0 0 PCI-MSI-edge eth7
NMI: 0 0 0 0 Non-maskable interrupts
LOC: 196962 205933 209322 208530 Local timer interrupts
SPU: 0 0 0 0 Spurious interrupts
PMI: 0 0 0 0 Performance
monitoring interrupts
PND: 0 0 0 0 Performance pending work
RES: 4866 761 416 467 Rescheduling interrupts
CAL: 39 102 107 109 Function call interrupts
TLB: 6019 5481 4678 6759 TLB shootdowns
TRM: 0 0 0 0 Thermal event interrupts
THR: 0 0 0 0 Threshold APIC interrupts
MCE: 0 0 0 0 Machine check exceptions
MCP: 2 2 2 2 Machine check polls
ERR: 3
MIS: 0
> 3) ifconfig -a
br0 Link encap:Ethernet HWaddr 00:90:0b:14:ac:38
inet addr:192.168.164.222 Bcast:192.168.167.255 Mask:255.255.252.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:50 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2300 (2.2 KiB) TX bytes:0 (0.0 B)
eth0 Link encap:Ethernet HWaddr 00:90:0b:14:ac:38
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:10119 errors:0 dropped:0 overruns:0 frame:0
TX packets:20075 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6654384 (6.3 MiB) TX bytes:1427890 (1.3 MiB)
Memory:fb580000-fb5a0000
eth1 Link encap:Ethernet HWaddr 00:90:0b:14:ac:39
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:20039 errors:0 dropped:0 overruns:0 frame:0
TX packets:10155 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1495356 (1.4 MiB) TX bytes:6646438 (6.3 MiB)
Memory:fb5e0000-fb600000
eth2 Link encap:Ethernet HWaddr 00:90:0b:14:ac:3a
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:19190 errors:0 dropped:0 overruns:0 frame:0
TX packets:9727 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1432004 (1.3 MiB) TX bytes:6365028 (6.0 MiB)
Memory:fb680000-fb6a0000
eth3 Link encap:Ethernet HWaddr 00:90:0b:14:ac:3b
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:9689 errors:0 dropped:0 overruns:0 frame:0
TX packets:19228 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6372426 (6.0 MiB) TX bytes:1367600 (1.3 MiB)
Memory:fb6e0000-fb700000
eth4 Link encap:Ethernet HWaddr 00:90:0b:15:79:18
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:9252 errors:0 dropped:0 overruns:0 frame:0
TX packets:18354 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6085260 (5.8 MiB) TX bytes:1305576 (1.2 MiB)
Memory:fb8e0000-fb900000
eth5 Link encap:Ethernet HWaddr 00:90:0b:15:79:19
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:18316 errors:0 dropped:0 overruns:0 frame:0
TX packets:9290 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1366920 (1.3 MiB) TX bytes:6078300 (5.7 MiB)
Memory:fb9e0000-fba00000
eth6 Link encap:Ethernet HWaddr 00:90:0b:15:79:1a
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:18709 errors:0 dropped:0 overruns:0 frame:0
TX packets:9484 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1396126 (1.3 MiB) TX bytes:6204656 (5.9 MiB)
Memory:fbae0000-fbb00000
eth7 Link encap:Ethernet HWaddr 00:90:0b:15:79:1b
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:9446 errors:0 dropped:0 overruns:0 frame:0
TX packets:18746 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:6211812 (5.9 MiB) TX bytes:1333280 (1.2 MiB)
Memory:fbbe0000-fbc00000
imq0 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP RUNNING NOARP MTU:16000 Metric:1
RX packets:129112 errors:0 dropped:0 overruns:0 frame:0
TX packets:129114 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:11000
RX bytes:31060964 (29.6 MiB) TX bytes:31062207 (29.6 MiB)
imq1 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:16000 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:11000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
imq2 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:16000 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:11000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
imq3 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:16000 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:11000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
imq4 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:16000 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:11000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
imq5 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:16000 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:11000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
imq6 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:16000 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:11000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
imq7 Link encap:UNSPEC HWaddr
00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
NOARP MTU:16000 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:11000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:14454 errors:0 dropped:0 overruns:0 frame:0
TX packets:14454 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1962561 (1.8 MiB) TX bytes:1962561 (1.8 MiB)
> 4) cat /proc/sys/vm/min_free_kbytes
3806
> 5) cat /proc/meminfo
MemTotal: 12462064 kB
MemFree: 12265628 kB
Buffers: 29672 kB
Cached: 64800 kB
SwapCached: 0 kB
Active: 87748 kB
Inactive: 75756 kB
Active(anon): 69040 kB
Inactive(anon): 288 kB
Active(file): 18708 kB
Inactive(file): 75468 kB
Unevictable: 0 kB
Mlocked: 0 kB
HighTotal: 11660872 kB
HighFree: 11515792 kB
LowTotal: 801192 kB
LowFree: 749836 kB
SwapTotal: 27226684 kB
SwapFree: 27226684 kB
Dirty: 120 kB
Writeback: 0 kB
AnonPages: 69032 kB
Mapped: 14508 kB
Shmem: 296 kB
Slab: 15728 kB
SReclaimable: 6044 kB
SUnreclaim: 9684 kB
KernelStack: 1376 kB
PageTables: 996 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 33457716 kB
Committed_AS: 848336 kB
VmallocTotal: 122880 kB
VmallocUsed: 9468 kB
VmallocChunk: 106708 kB
DirectMap4k: 6136 kB
DirectMap2M: 907264 kB
> for each eth*
> ethtool -g eth*
e5570#ethtool -g eth0 - eth7 ( have the same config)
Ring parameters for eth0:
Pre-set maximums:
RX: 4096
RX Mini: 0
RX Jumbo: 0
TX: 4096
Current hardware settings:
RX: 256
RX Mini: 0
RX Jumbo: 0
TX: 256
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