Messages in this thread | | | From | Nikita Danilov <> | Date | Thu, 8 Nov 2001 15:15:43 +0300 | Subject | Re: Suspected bug - System slowdown under unexplained excessive disk I/O - 2.4.13 |
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Oktay Akbal writes: > I just did a quick retest with sql-bench on my machine and found that > reiserfs seems to be a source for that problem. > I did not reproduce the whole problem, since i stopped > test-create before the system was to unresponsive. > > But I started test-create on a partition with > reiserfs. After much files were created the system to very > long for bash command-completion or doing simple thing > free, top etc. this was even after test-create was stopped. > It took about 30 seconds till the system responded normally. > > Same test with ext2 on the same partition showed no problems. > > Reran the test with reiserfs and the system got unresponsive > again.
It doesn't seem that you have the same problem as Sasha. Reiserfs has known problem with dealing with large holes, so may be this explains situation. We'll try to reproduce your results.
> > Did you use reiserfs ? > > Oktay >
Nikita.
> > On Thu, 8 Nov 2001, Oktay Akbal wrote: > > > On Wed, 7 Nov 2001, Sasha Pachev wrote: > > > > > Summary: > > > > > > System slowdown under unexplained excessive disk I/O > > > > > > Full description: > > > > > > While running X, KDE, having a few windows open, I ran make -j4 on MySQL > > > source tree. I do this all the time and it usually works just fine - the > > > system is a little bit unresponsive. However, occasionally the system becomes > > > completely unresponsive - the disk goes crazy, the machine pings but neither > > > ssh or telnet work - connection to the port is established, but nothing > > > further than that. It does respond to magic SysRQ. I was able to get a memory > > > info dump + stack traces into syslog, included below. The filesystem is > > > ReiserFS. > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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