search for: kswapd0

Hi all I have a box with Centos 4 and qmail with all pathches. since Last month i have had twice the same problem. The process kswapd0 uses all my resources of CPU and RAM memory and the consequence is that my local queue grow up and the box go slow too. The first time i guess the problem was the version of the kernel, so i did an upgrade form kernel.i686 2.6.9-5.0.3.EL to kernel.i686 2.6.9-5.0.5.EL apparently the problem was so...

...mod usbhid hid sd_mod sr_mod cdrom crc_t10dif ata_generic thermal tg3 firewire_ohci thermal_sys ahci libahci ata_piix sdhci_pci sdhci mmc_core uhci_hcd libphy firewire_core crc_itu_t libata ehci_hcd scsi_mod usbcore usb_common [last unloaded: iwl3945] [34736.234950] [34736.234966] Pid: 23, comm: kswapd0 Not tainted 3.4.0 #2 Dell Inc. XPS M1330 /0N6705 [34736.235036] RIP: 0010:[<ffffffffa01ec2a8>] [<ffffffffa01ec2a8>] btrfs_release_extent_buffer_page.constprop.37+0x49/0xc5 [btrfs] [34736.235156] RSP: 0018:ffff880116fff9e0 EFLAGS: 00010286 [34736.235194] RAX: ff...

...0] 4 root SW< [khelper] 9 root SW< [kthread] 32 root SW< [kblockd/0] 45 root SW [khubd] 84 root SW [pdflush] 85 root SW [pdflush] 87 root SW< [aio/0] 86 root DW [kswapd0] 645 root SW [mtdblockd] 646 root SW [ftld] 647 root SW [nftld] 677 root SWN [jffs2_gcd_mtd4] 765 root 328 S /sbin/syslogd -m 0 -s 40 -b 0 830 root 1820 S /sbin/smbd 891 root 836 S /bin/sh 971 root...

Hi I have a trouble with centOS 4 The process kswapd0 eat almost all my memory space, and also this process get almost 100 percent of cpu, and the box go slow I have read that this problem is fix when the kernel is upgrade but I do not know hot to update my kernel. when I type yum list \kernel* I get the following list: [xxx at xxxxxx]# yum list \k...

...snd_hda_codec_generic r8169 mii i2c_i801 snd_hda_intel snd_hda_codec snd_hda_core snd_pcm snd_timer acpi_cpufreq snd lpc_ich soundcore mfd_core processor sch_fq_codel sd_mod hid_generic usbhid hid ahci libahci ehci_pci libata ehci_hcd usbcore scsi_mod usb_common [ 319.363895] CPU: 0 PID: 45 Comm: kswapd0 Not tainted 4.7.0-rc3-next-20160615-dbg-00004-g550dc8a-dirty #490 [ 319.363950] task: ffff8800bfb93d80 ti: ffff880112200000 task.ti: ffff880112200000 [ 319.363968] RIP: 0010:[<ffffffffa03ce408>] [<ffffffffa03ce408>] zs_compact+0x2bd/0xf22 [zsmalloc] [ 319.364000] RSP: 0018:ffff88011...

...p 1; dmesg -c; done | perl /usr/local/bin/iodump ^C# Caught SIGINT. TASK PID TOTAL READ WRITE DIRTY DEVICES btrfs-submit-0 8321 28040 0 28040 0 sdb ceph-osd 8514 158 0 158 0 sda7 kswapd0 46 81 0 81 0 sda1 bash 10709 35 35 0 0 sda1 flush-8:0 962 12 0 12 0 sda5 kworker/0:1 8897 6 0 6 0 sdb kwor...

...d will hang. I suspect kjournald because of the following ps output: PID PPID WCHAN:20 PCPU %MEM PSR COMM 8847 99 start_this_handle 1.1 0.0 28 pdflush 8853 99 schedule_timeout 0.2 0.0 7 pdflush 188 1 kswapd 0.0 0.0 19 kswapd0 8051 1 mtd_blktrans_thread 0.0 0.0 22 mtdblockd 8243 1 kjournald 0.0 0.0 0 kjournald 8305 1 schedule_timeout 0.0 0.0 2 udevd 8378 1 kjournald 0.0 0.0 0 kjournald 8379 1 journal_commit_trans 16.6 0.0 0 kj...

Hi, after a while of playing around with winedbg i have a lot of these: bash-2.05b# ps -A 559 pts/0 00:00:01 wine-kthread <defunct> 558 pts/0 00:00:04 wine-kthread <defunct> 607 pts/0 00:00:01 wine-kthread <defunct> 606 pts/0 00:00:04 wine-kthread <defunct> i tried differend variations on kill, and killall, but they don't go away. Any ideas? Regards,

...0:00 \_ [pdflush] 27 ? S 0:00 \_ [pdflush] 29 ? S< 0:00 \_ [aio/0] 1055 ? S< 0:00 \_ [kauditd] 1095 ? S< 0:00 \_ [kmirrord] 1096 ? S< 0:00 \_ [kmir_mon] 17 ? S 0:00 [khubd] 28 ? S 0:00 [kswapd0] 103 ? S 0:00 [kseriod] 178 ? S 0:00 [kjournald] 980 ? S<s 0:00 udevd 1115 ? S 0:00 [kjournald] 1743 ? Ss 0:00 syslogd -m 0 1747 ? Ss 0:00 klogd -x 1774 ? Ss 0:00 portmap 1793 ? Ss 0:00 rpc.statd...

...0 0 S 0.0 0.0 0:00.25 pdflush 35 root 15 0 0 0 0 S 0.0 0.0 0:00.00 khubd 47 root 13 -10 0 0 0 S 0.0 0.0 0:00.00 aio/0 48 root 9 -10 0 0 0 S 0.0 0.0 0:00.00 aio/1 46 root 25 0 0 0 0 S 0.0 0.0 0:00.00 kswapd0 122 root 25 0 0 0 0 S 0.0 0.0 0:00.00 kseriod 192 root 5 -10 0 0 0 S 0.0 0.0 0:00.00 ata/0 193 root 7 -10 0 0 0 S 0.0 0.0 0:00.00 ata/1 195 root 20 0 0 0 0 S 0.0 0.0 0:00.00 scsi_eh_0 196 root 19 0...

Hi All I have xeon server with 16 Gb Ram and no Swap memory.I am running cassandra server on two node in cluster.When there is high load on server kswapd0 kicks inn and take 100% cpu and make machine very slow and we need to restart out cassandra server.I have latest kernel 2.6.18-238.9.1.el5.Please let me know how can i fix this issue .Its hurting us badly this our production server any quick help will be appreciated. -- S.Ali Ahsan

...S 0 0.0 0:00.00 kblockd/0 10 root 5 -10 0 0 0 S 0 0.0 0:00.00 kblockd/1 11 root 15 0 0 0 0 S 0 0.0 0:00.00 khubd 66 root 15 0 0 0 0 S 0 0.0 0:16.14 pdflush 67 root 15 0 0 0 0 S 0 0.0 2:30.44 kswapd0 68 root 15 -10 0 0 0 S 0 0.0 0:00.00 aio/0 69 root 5 -10 0 0 0 S 0 0.0 0:00.00 aio/1 213 root 22 0 0 0 0 S 0 0.0 0:00.00 kseriod 450 root 5 -10 0 0 0 S 0 0.0 0:00.00 ata/0 451 root 5 -10 0...

...ughput: *cp (no direct I/O):* PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 23356 root 20 0 10740 676 584 D 74 0.0 0:16.48 cp 23344 root 20 0 0 0 0 D 9 0.0 0:04.80 flush-8:64 639 root 20 0 0 0 0 R 9 0.0 0:12.28 kswapd0 root at dekabutsu: 05:54 AM :/data2# time cp -avf /data/winxp.img /data2/ `/data/winxp.img' -> `/data2/winxp.img' real 1m10.767s user 0m0.692s sys 0m47.401s *Rsync (no direct I/O):* PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 23397 root 20...

...t iput+0x25/0x61 Sep 3 04:03:10 qu015 kernel: eax: 00000040 ebx: f3a85b74 ecx: f8c7bbb9 edx: f3a85b74 Sep 3 04:03:10 qu015 kernel: esi: f222b89c edi: f222b8a4 ebp: 0000006b esp: f7ceeeec Sep 3 04:03:10 qu015 kernel: ds: 007b es: 007b ss: 0068 Sep 3 04:03:10 qu015 kernel: Process kswapd0 (pid: 43, threadinfo=f7cee000 task=f7d1b7b0) Sep 3 04:03:10 qu015 kernel: Stack: f3a85b74 c016a1d8 00000000 00000092 00000000 f7ffe9e0 c016a553 c0144e2c Sep 3 04:03:10 qu015 kernel: 00d70a00 00000000 00000061 00000000 00023313 000000d0 00000020 c031ad80 Sep 3 04:03:10 qu015 kernel:...

Hi Sergey, On Wed, Jun 15, 2016 at 04:59:09PM +0900, Sergey Senozhatsky wrote: > Hello Minchan, > > -next 4.7.0-rc3-next-20160614 > > > [ 315.146533] kasan: CONFIG_KASAN_INLINE enabled > [ 315.146538] kasan: GPF could be caused by NULL-ptr deref or user memory access > [ 315.146546] general protection fault: 0000 [#1] PREEMPT SMP KASAN > [ 315.146576] Modules

Hi Sergey, On Wed, Jun 15, 2016 at 04:59:09PM +0900, Sergey Senozhatsky wrote: > Hello Minchan, > > -next 4.7.0-rc3-next-20160614 > > > [ 315.146533] kasan: CONFIG_KASAN_INLINE enabled > [ 315.146538] kasan: GPF could be caused by NULL-ptr deref or user memory access > [ 315.146546] general protection fault: 0000 [#1] PREEMPT SMP KASAN > [ 315.146576] Modules

...0.0 0.1 2:29.08 irqbalance 6 root 10 -5 0 0 0 S 0.0 0.0 2:04.54 events/0 89 root 15 0 0 0 0 S 0.0 0.0 0:35.13 pdflush 90 root 15 0 0 0 0 S 0.0 0.0 0:23.78 pdflush 91 root 15 0 0 0 0 S 0.0 0.0 0:20.49 kswapd0 1958 root 16 0 2084 488 416 S 0.0 0.1 0:16.08 xcs 333 root 15 0 0 0 0 S 0.0 0.0 0:14.95 kjournald 1271 root 16 0 4340 1644 1356 S 0.0 0.5 0:06.49 sshd 1 root 16 0 3252 556 484 S 0.0 0.2 0:05.63 init 8203 root 16 0 7724 22...

...0 0:00.00 [cqueue/0] 91 root 17 -5 0 0 0 S 0.0 0.0 0:00.00 [cqueue/1] 94 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 [khubd] 96 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 [kseriod] 160 root 23 0 0 0 0 S 0.0 0.0 0:00.00 [pdflush] 161 root 15 0 0 0 0 S 0.0 0.0 0:02.79 [pdflush] 162 root 10 -5 0 0 0 S 0.0 0.0 0:01.03 [kswapd0] 163 root 19 -5 0 0 0 S 0.0 0.0 0:00.00 [aio/0] 164 root 20 -5 0 0 0 S 0.0 0.0 0:00.00 [aio/1] 316 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 [kpsmoused] 346 root 12 -5 0 0 0 S 0.0 0.0 0:00.00 [ata/0] 347 root 12 -5 0 0 0 S 0.0 0.0 0:00.00 [ata/1] Best Regards, Melinda Odom Design Hosting, Inc. Web Design...

...0.0  0.0   0:00.01 events/0     4 root       5 -10     0    0    0 S  0.0  0.0   0:00.42 khelper    15 root       5 -10     0    0    0 S  0.0  0.0   0:06.93 kblockd/0    72 root      15 -10     0    0    0 S  0.0  0.0   0:00.00 aio/0    71 root      15   0     0    0    0 S  0.0  0.0   0:32.39 kswapd0   655 root      25   0     0    0    0 S  0.0  0.0   0:00.00 kseriod   698 root      15   0     0    0    0 S  0.0  0.0   0:21.67 xenblkd   714 root      15   0     0    0    0 S  0.0  0.0   0:12.01 kjournald  1035 root      16   0  1560  588  492 S  0.0  0.5   0:04.13 syslogd  1038 root      ...

...0:00 [aio/1] root 65 0.0 0.0 0 0 ? S< 17:39 0:00 [aio/2] root 66 0.0 0.0 0 0 ? S< 17:39 0:00 [aio/3] root 51 0.0 0.0 0 0 ? S 17:39 0:00 [khubd] root 62 0.0 0.0 0 0 ? S 17:39 0:00 [kswapd0] root 139 0.0 0.0 0 0 ? S 17:39 0:00 [kseriod] root 204 0.0 0.0 0 0 ? S 17:39 0:00 [scsi_eh_0] root 205 0.0 0.0 0 0 ? S 17:39 0:00 [aacraid] root 217 0.0 0.0 0 0 ? S< 17:39 0:00 [kmirro...