On Thu, Mar 28, 2013 at 10:22:52PM +0300, Vyacheslav Dubeyko wrote: > Thank you for additional details. Unfortunately, your sysrq-trigger > output is not complete. So, I can't make conclusion about what > operation was a reason of issue on your side. Could you send to me the > full log of sysrq-trigger output? How to generete more verbose log? Btw looking at ps aux output it seems, that this flush is hanging there almost from first boot: root 937 88.2 0.0 0 0 ? S Feb17 50160:39 [flush-8:0] And an uptime: 08:25:18 up 39 days, 10:57, 4 users, load average: 0.72, 0.89, 0.98 Also I don't know if this isn't some kind of regression. I'm using nilfs for, well, some time now (looking at fs creation date Aug 2011) and didn't noticed any strange behaviour before. I think I won't be able to check this, but before that last boot I used (95% sure) vanilla kernel 3.4.4 and it was not flushing things or I didn't noticed. I could go to some older LTS kernel on other machine and check that. > I can easily reproduce the issue by big file (100 - 500 GB) deletion > or truncation. Please, find description in: > http://www.mail-archive.com/linux-nilfs@xxxxxxxxxxxxxxx/msg01504.html. If this brings something new - I'm not using huge files like that (this flush above is a 3.7G device). But if this reproduces the issue, it could be related. (: Piotr Szymaniak. -- Ogólnie rzecz biorąc, chodzi o różnice w objętości i spiczastości. Kiedy oglądam zdjęcia w "National Geographic", widzę, że cycki kobiet niewiele się różnią od tego, co ma koza czy krowa - tyle że są trochę bardziej niewygodne. -- William Wharton, "Birdy"
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