On Mon, Oct 28, 2013 at 8:05 PM, Josef Bacik <jba...@fusionio.com> wrote: > On Sun, Oct 27, 2013 at 09:50:37AM +0100, Igor M wrote: >> On Sun, Oct 27, 2013 at 2:00 AM, Tomasz Chmielewski <t...@virtall.com> wrote: >> >> Still no messages. Parameter seems to be active as >> >> /sys/module/printk/parameters/ignore_loglevel is Y, but there are no >> >> messages in log files or dmesg. Maybe I need to turn on some kernel >> >> debugging option and recompile kernel ? >> >> Also I should mention that cca 230G+ data was copied before this error >> >> started to occur. >> > >> > I think I saw a similar issue before. >> > >> > Can you try using rsync with "--bwlimit XY" option to copy the files? >> > >> > The option will limit the speed, in kB, at which the file is being >> > copied; it will work even when source and destination files are on a >> > local machine. >> > >> >> Also I run strace cp -a .. >> ... >> read(3, "350348f07$0$24520$c3e8da3$fb4835"..., 65536) = 65536 >> write(4, "350348f07$0$24520$c3e8da3$fb4835"..., 65536) = 65536 >> read(3, "62.76C52BF412E849CB86D4FF3898B94"..., 65536) = 65536 >> write(4, "62.76C52BF412E849CB86D4FF3898B94"..., 65536) = -1 ENOSPC (No >> space left on device) >> >> Last two write calls take a lot more time, and then last one returns >> ENOSPC. But if this write is retryed, then it succeeds. >> I tried with midnight commander and when error occurs, if I Retry >> operation then it finishes copying this file until error occurs again >> at next file. >> >> With --bwlimit it seems to be better, lower the speed later the error >> occurs, and if it's slow enough copy is successfull. >> But now I'm not sure anymore. I copied a few files with bwlimit, and >> now sudenly error doesn't occur anymore, even with no bwlimit. >> I'll do some more tests. > > I just sent a patch to the list > > [PATCH] Btrfs: make sure the delalloc workers actually flush compressed writes > > Can you run this patch and see if it makes a difference for your test? > Thanks, > > Josef
I'll try with this patch. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
