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CentOS server high load and server freezes

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http://serverfault.com – My server seems to get sudden high loads within second and when I run dmesg, following logs appear: INFO: task auditd:2185 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. auditd D 0000012D 2216 2185 1 2216 2184 (NOTLB) f7fcaed0 00000086 eb3e3159 0000012d 0000012c 0000000e 00000000 00000007 c35e3550 eb3e396f 0000012d 00000816 00000002 c35e365c c3420788 f7897200 c36d0468 00000000 00000000 f7fcaecc c041f0c8 00000000 00000000 00000003 Call Trace: [<c041f0c8>] __wake_up+0x2a/0x3d [& (HowTos)

dayu's picture
Submitted by dayu on 01/25/2013

Stories similar to CentOS server high load and server freezes

Consider the following program targeting Linux x86_64:

inf.s:

.global _start .text _start: jmp _start

Which is basically an infinite loop.

If I link and strip this I get an ELF executable:

$ gcc -nostdlib inf.s

$ ./a.out &

[1] 15862

$ cat /proc/15862/maps

00400000-00401000 r-xp 00000000 fc:00 11404632 a.out 7fffacdb8000-7fffacdd9000 rwxp 00000000 00:00 0

I just wonder about the usage of non-readable vma chunk.

Here is the virtual memory mapping information of 'vi' process from /proc/${PID}/maps

00400000-005b7000 r-xp 00000000 08:01 267175 /usr/bin/vim.basic 007b6000-007b7000 r--p 001b6000 08:01 267175 /usr/bin/vim.basic 007b7000-007cc000 rw-p 001b7000 08:01 267175

Hi Guys

I have a text file that contains the message like this

Code:

/var/log/messages.all-20120401: Mar 26 12:12:23 brent kernel: NVRM: Xid (0003:00): 43, 0005 00009097 00000000 00000000 00001b0c 1000f010 /var/log/messages.all-20120401: Mar 27 20:42:40 brent kernel: NVRM: Xid (0003:00): 43, 0004 00009097 00000000 00000000 00001b0c 1000f010 how can i would like a way to count up the num

wine and plants vs. zombies 33 weeks 22 hours ago

hey, im new to ubuntu and i love it so far, but im having an issue. i want to port my plants vs. zombies game to ubuntu but wine wont open it.

I am using an iscsi volume on an Open-E storage system for several virtual machines running on a XenServer host.

server was unresponsive for an hour so i rebooted it and checked /var/log/messages

and found this.

I am trying to start a bridge connection and force it to use IGMPV3.

The following command will explain my issue better :

The below is the output of force_igmp_version before issuing brctl commands

/ # cat /proc/sys/net/ipv4/conf/br/force_igmp_version 3 / # cat /proc/net/igmp Idx Device : Count Querier Group Users Timer Reporter 1 lo : 1 V3

My basic question is why is the VSIZE for a 64 bit process so much larger than that of the exact same program compiled for 32 bit?

The following is the output of the /proc/<pid>/maps file for the 32 bit process.

00148000-00149000 r-xp 00000000 00:00 0 [vdso] 00149000-002d2000 r-xp 00000000 fd:02 8914142 /lib/libc-2.12.so 002d2000-002d3000 ---p 00189000 fd:02 8914142

0xb7641e75 __strcasestr_sse42_nonascii+0x55 in libc.so.6: movq 0x10(%esp),%mm1 Modules:

wine: Unhandled page fault on read access to 0xffffffff at address 0xb7641e75 (thread 003a), starting debugger... Unhandled exception: page fault on read access to 0xffffffff in 32-bit code (0xb7641e75). Register dump: CS:0073 SS:007b DS:007b ES:007b FS:0033 GS:003b EIP:b7641e75 ESP:0033e1dc EBP:b750f6c0 EFL