search for: pdflush

From: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> The pdflush thread is long gone, so this patch removes references to pdflush from btrfs comments. Cc: Chris Mason <chris.mason@fusionio.com> Cc: linux-btrfs@vger.kernel.org Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> --- I expect this patch to be merged via Al Viro''...

...nds, and it shows flush-8:16 where before it said flush-253:0. 8 is scsi disk driver. So it's not an LVM thing... maybe a kernel thing? I suggested he try Fedora 14 beta, as it has a newer kernel. Maybe this kernel thing is fixed in the newer kernel. He also tried CentOS 5.5, and saw a "pdflush" process popping up with the same frequency, and resulting in a similar glitch. Any other suggestions? Best, -at

Greetings All, Without going into the specific reasons why I need to do so, is anyone aware of a method (or tool) of watching real-time, human-readable (or system call print) of ext3 filesystem operations on a mounted, active filesystem? Excuse me if this is a duplicate question but I was unable to find any similar ones in the archives. Thanks in advance! Kevin Strong Criminal Information

...d_mixer_oss ide_cd_mod cdrom snd_pcm snd_timer snd button soundcore sky2 snd_page_alloc serio_raw i2c_i801 i2c_core ohci1394 iTCO_wdt pcspkr iTCO_vendor_support floppy dm_snapshot dm_zero dm_mirror dm_mod ahci ata_piix libata dock sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd Pid: 213, comm: pdflush Not tainted (2.6.25-rc7 #3) EIP: 0060:[<f8b936b3>] EFLAGS: 00010286 CPU: 1 EIP is at btrfs_alloc_extent+0xba/0x328 [btrfs] EAX: ffffffe4 EBX: f2455730 ECX: c2017c88 EDX: 00000000 ESI: f3da7130 EDI: 00000000 EBP: f7945c64 ESP: f7945c20 DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 Process pdfl...

...doing this test, I eventually see the copying stop, and any attempts to access /tmp fail - if I even do ls /tmp the command 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...

...d 1 root 520 S ini 2 root SWN [ksoftirqd/0] 3 root SW< [events/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/s...

I got a samba server(Linux) to store some data in my PC(windows) frequently. And last night I found that samba can't work. After logined to samba server and found that there's 91 smbd processes with status "D" totally. # ps 169 root 0 SW [pdflush] 170 root 0 DW [pdflush] .... 29534 simon 20608 D /sbin/smbd -D 29548 root 2792 D /bin/sync 30160 simon 20608 D /sbin/smbd -D 30474 simon 20608 D /sbin/smbd -D 30496 simon 18676 D /sbin/smbd -D 30673 simon 20504 D /sbin/smbd -D 30810 simon 20504 D...

Has anyone hit this bug yet? I just hit it yesterday. https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=150653 -- Computer House Calls, Networks, Security, Web Design: http://www.emmanuelcomputerconsulting.com What businesses are in Brunswick, Maryland? Check Brunswick First! http://www.checkbrunswickfirst.com My "Foundation" verse: Isa 54:17 No weapon that is formed against thee

Hi I was wondering if you ever got better performance out of your Gigabit/IDE/Fc2? I am facing a similar situation. I am running FC2 with Samba 3.x My problem lies in not that I am limited to 10 MBytes per second sustained. I think it's related to this pdflush and how it's buffers are setup. (I have been doing some research and before 2.6 kernels bdflush was the method that was used and it was tweakable. Have yet to find anything on HOW to tweak pdflush. My issue is that I can copy over the network at 15+ MBytes per second but then after a few minu...

...ighly revealing as to what the kernel is doing and why. However, I am now getting this odd content in the trace log (dmesg), and I cannot figure out what it is or why it is there. If anyone recognizes this situation, I invite comment and suggestions on how to eliminate or decipher it: 4296757675 pdflush(80): do_writepages: map>ops>wrtpgs ffffffffa0195ff5 4296757675 pdflush(80): mpage_writepages w/b index 49728 pages 256000 <7><7><7><7><7><7><7><7><7><7><7><7><7><7><7><7><7><7><7>...

...0 0:03.28 [kblockd/1] 17 root 17 -5 0 0 0 S 0.0 0.0 0:00.00 [kacpid] 90 root 16 -5 0 0 0 S 0.0 0.0 0:00.00 [cqueue/0] 91 root 16 -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 15 0 0 0 0 S 0.0 0.0 0:12.92 [pdflush] 161 root 15 0 0 0 0 S 0.0 0.0 0:21.17 [pdflush] I don't have watchdog installed either. It seems my load has also gone up How would I fix this so there are not duplicates running? Best Regards, Melinda Odom Design Hosting, Inc. Web Design, Web Hosting, & Ecommerce Solutions 479-471-089...

Hello everyone, Btrfs v0.16 is available for download, please see http://btrfs.wiki.kernel.org/ for download links and project information. v0.16 has a shiny new disk format, and is not compatible with filesystems created by older Btrfs releases. But, it should be the fastest Btrfs yet, with a wide variety of scalability fixes and new features. There were quite a few contributors this time

Hi, Since upgrading to "2.6.18-194" I am getting odd messages in the logs. Such as; sraid3 kernel INFO task pdflush 259 blocked for more than 120 seconds. The output from > grep '120 seconds' /var/log/messages | tr : ' ' | awk '{print $10}' | sort | uniq -c 6 nfsd 4 pdflush This is from an NFS server that since the upgrade has been flakey. I have an identical server...

...1 ? S 0:00 init [3] 2 ? SN 0:00 [ksoftirqd/0] 3 ? S< 0:00 [events/0] 4 ? S< 0:00 \_ [khelper] 5 ? S< 0:00 \_ [kacpid] 16 ? S< 0:00 \_ [kblockd/0] 26 ? S 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 ?...

...0.0 0.0 0:00.00 khelper 9 root 15 -10 0 0 0 S 0.0 0.0 0:00.00 kacpid 33 root 5 -10 0 0 0 S 0.0 0.0 0:00.00 kblockd/0 34 root 5 -10 0 0 0 S 0.0 0.0 0:00.00 kblockd/1 44 root 20 0 0 0 0 S 0.0 0.0 0:00.00 pdflush 45 root 15 0 0 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...

...xample, I can write a 4 gigabyte file in about 16 seconds with no snapshots in place, but the same file either takes about 4 minutes to write, or my systems seems to hang when a snapshot exists. The top and iostat commands seem to show very high iowait times and very low actual I/O throuhput, and pdflush seems to be quite busy doing something. Removing the snapshot immediately brought performance back to normal. Are LVM snapshots not recommended with Centos, or are there recommended ways to tune it for better performance? Thanks for any input!

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,

...8 S 0.0 0.2 3:45.44 nifd 1960 root 16 0 15680 9136 2564 S 0.0 2.6 3:42.15 python 1207 root 16 0 1788 476 404 S 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 4...

...0 0:00.47 [kblockd/1] 17 root 16 -5 0 0 0 S 0.0 0.0 0:00.00 [kacpid] 90 root 16 -5 0 0 0 S 0.0 0.0 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...

I use fedora 7 and the last stable version of samba 3.0.25a-3 on an embedded linux system as a server and a windows xp. I 'am using truecrypt and sharing de mount directory with the XP machine via samba. Selniux is disabled. Everything works well such as connection or small files transfers but we have a huge problem when we try to transfer a big file (~100 MB) from the client (Windows) to the