log_wait_commit problem.

Post #338,072 by static 1/4/11 6:36:16 PM Reply	log_wait_commit problem. My Google-fu seems to be weak on this. I run Opera at work on a Linux box (Ubuntu Lucid Lynx) for both web browsing and email (talks to an Exchange IMAP connector). It gets "stuck" from time-to-time on log_wait_commit. Any have any ideas why? Wade. Q:Is it proper to eat cheeseburgers with your fingers? A:No, the fingers should be eaten separately.
Post #338,073 by Another Scott 1/4/11 7:41:22 PM Reply	Something's not configured right? Does this help a little? http://www.irbs.net/...ix/0303/1464.html Good luck. Cheers, Scott.
Post #338,075 by static 1/4/11 8:18:11 PM Reply	I already found that one. It doesn't help. As far as I can tell, Opera works entirely within ~/.opera/ and that's already got the sync attribute turned off. :-/ Wade. Q:Is it proper to eat cheeseburgers with your fingers? A:No, the fingers should be eaten separately.
Post #338,074 by folkert 1/4/11 8:07:03 PM 1/4/11 8:08:58 PM Reply	Are you using EXT3 or EXT4? It could also be telling you a hard drive is failing. Are you running "smartd" and what is it saying? Have you checked /var/log/syslog\|messages for timeouts on the HD? Edited by folkert Jan. 4, 2011, 08:08:41 PM EST Edited by folkert Jan. 4, 2011, 08:08:58 PM EST Expand All History
Post #338,076 by static 1/4/11 8:25:05 PM Reply	It's ext3. It only happens to Opera and gets worse when it's working with a lot of email (I have some 8000 messages in my mailbox). Everything else is still responsive, although sometimes it happens when I'm doing a Java compile. I installed smartmontools and both drives are fine. /var/log/syslog and messages are silent on HD timeouts or anything else except the flashplugin occasionally barfing. Wade. Q:Is it proper to eat cheeseburgers with your fingers? A:No, the fingers should be eaten separately.
Post #338,080 by folkert 1/4/11 10:00:13 PM 1/4/11 10:09:34 PM Reply	Is this a laptop or a desktop machine? If its a Desktop, decrease you dirty_writeback_centisecs to 3 seconds (or less but not lower than 1 second) echo 300 > /proc/sys/vm/dirty_writeback_centisecs If its laptop... you want to only do that should you be plugged in. If its a laptop change it to 15 seconds when on battery. I know that Ubuntu has been playing with "standard" numbers on trying to be GREEN. You might have it up there already. My Debian installs all have it at 5 seconds (500 centisecs) Edited by folkert Jan. 4, 2011, 10:09:34 PM EST Expand All History
Post #338,082 by static 1/4/11 10:24:07 PM Reply	It's a desktop. There's always more information to give... :-) It's a Dell Optiplex 960. Intel Core 2 Quad CPU @ 2.83GHz. 8Gb of RAM but some is stolen for the onboard video. 2x 300Gb SATA HDDs. And uname-a returns "2.6.32-25-generic #45-Ubuntu SMP Sat Oct 16 19:52:42 UTC 2010 x86_64 GNU/Linux". All the developers have machines like that, except almost everyone runs Vista or Windows 7. I have Vista in a VirtualBox for corporate networking, but I only really need it for the Outlook calendar. The dirty_writeback_centisecs was 499, so I lowered it to 300. Wade. Q:Is it proper to eat cheeseburgers with your fingers? A:No, the fingers should be eaten separately.

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