Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when FS is under heavy write load (massive starvation) | KernelTrap

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when FS is under heavy write load (massive starvation)

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From: Linus Torvalds <torvalds@...>

To: Matthias Andree <matthias.andree@...>

Cc: Andrew Morton <akpm@...>, Mike Galbraith <efault@...>, LKML <linux-kernel@...>, Jens Axboe <jens.axboe@...>

Subject: Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comatose when FS is under heavy write load (massive starvation)

Date: Saturday, April 28, 2007 - 12:30 pm

On Sat, 28 Apr 2007, Matthias Andree wrote:
quoted text> 
> Another thing that is rather unpleasant (haven't yet tried fiddling with
> the dirty limits) is UDF to DVD-RAM - try rsyncing /home to a DVD-RAM,
> that's going to leave you with tons of dirty buffers that clear slowly
> -- "watch -n 1 grep -i dirty /proc/meminfo" is boring, but elucidating...

Now *this* is actually really really nasty.

There are worse examples. Try connecting some flash disk over USB-1, and 
untar to it. Ugh.

I'd love to have some per-device dirty limit, but it's harder than it 
should be.

		Linus
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Messages in current thread:

[ext3][kernels >= 2.6.20.7 at least] KDE going comatose w..., Mike Galbraith, (Fri Apr 27, 3:59 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Linus Torvalds, (Fri Apr 27, 11:18 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Jens Axboe, (Wed May 2, 2:53 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mike Galbraith, (Wed May 2, 3:36 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mikulas Patocka, (Sat Apr 28, 2:32 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Linus Torvalds, (Sat Apr 28, 12:05 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Jens Axboe, (Mon Apr 30, 2:56 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mikulas Patocka, (Sat Apr 28, 1:55 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Ingo Molnar, (Sat Apr 28, 12:37 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mikulas Patocka, (Sat Apr 28, 1:11 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Jens Axboe, (Mon Apr 30, 2:57 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Jan Engelhardt, (Fri Apr 27, 4:06 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Linus Torvalds, (Fri Apr 27, 5:22 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., John Anthony Kazos Jr., (Fri Apr 27, 11:41 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Linus Torvalds, (Fri Apr 27, 11:54 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Marko Macek, (Fri Apr 27, 3:43 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Chuck Ebbert, (Fri Apr 27, 12:24 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Andrew Morton, (Fri Apr 27, 2:31 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Matthias Andree, (Sat Apr 28, 4:51 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Linus Torvalds, (Sat Apr 28, 12:30 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Paolo Ornati, (Sat Apr 28, 12:56 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Andrew Morton, (Sat Apr 28, 4:59 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mike Galbraith, (Fri Apr 27, 3:27 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Zan Lynx, (Fri Apr 27, 3:09 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Andrew Morton, (Fri Apr 27, 6:07 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mike Galbraith, (Sat Apr 28, 12:25 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mike Galbraith, (Sat Apr 28, 2:32 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Andrew Morton, (Sat Apr 28, 3:01 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mike Galbraith, (Sat Apr 28, 3:12 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mike Galbraith, (Fri Apr 27, 3:28 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Andrew Morton, (Fri Apr 27, 4:33 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mikulas Patocka, (Sat Apr 28, 4:46 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Lee Revell, (Sat Apr 28, 5:12 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mikulas Patocka, (Sun Apr 29, 5:17 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mark Lord, (Sun Apr 29, 4:49 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Marat Buharov, (Fri Apr 27, 7:59 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Linus Torvalds, (Fri Apr 27, 11:30 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Matthias Andree, (Sat Apr 28, 4:44 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Andreas Dilger, (Fri Apr 27, 3:31 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Linus Torvalds, (Fri Apr 27, 3:50 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Matthias Andree, (Sat Apr 28, 4:45 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Miquel van Smoorenburg, (Fri Apr 27, 4:12 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Manoj Joseph, (Fri Apr 27, 4:54 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Stephen Clark, (Fri Apr 27, 4:45 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Gabriel C, (Fri Apr 27, 4:29 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Bill Huey, (Fri Apr 27, 4:12 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mikulas Patocka, (Sat Apr 28, 1:37 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Bill Huey, (Sat Apr 28, 5:57 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mikulas Patocka, (Sat Apr 28, 6:38 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mikulas Patocka, (Sat Apr 28, 1:45 am)

RE: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Hua Zhong, (Fri Apr 27, 4:05 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Andrew Morton, (Fri Apr 27, 6:18 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Alex Tomas, (Thu May 3, 1:38 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Andrew Morton, (Thu May 3, 7:54 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Alex Tomas, (Fri May 4, 2:18 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Andrew Morton, (Fri May 4, 2:38 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Alex Tomas, (Fri May 4, 2:57 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Andrew Morton, (Fri May 4, 3:18 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Alex Tomas, (Fri May 4, 3:39 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Andrew Morton, (Fri May 4, 4:02 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mike Galbraith, (Fri Apr 27, 3:44 pm)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Manoj Joseph, (Fri Apr 27, 8:39 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Peter Zijlstra, (Fri Apr 27, 8:30 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mark Lord, (Fri Apr 27, 9:50 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mike Galbraith, (Fri Apr 27, 6:17 am)

Re: [ext3][kernels >= 2.6.20.7 at least] KDE going comato..., Mike Galbraith, (Fri Apr 27, 5:23 am)

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