Messages in this thread |  | | Date | Mon, 5 Aug 2002 21:48:31 +0200 (CEST) | From | Roland Kuhn <> | Subject | Re: reiserfs blocks long on getdents64() during concurrent write |
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Hi!
sorry, I read this mail after Oleg's, so disregard my previous post.
On 5 Aug 2002, Chris Mason wrote:
> On Mon, 2002-08-05 at 14:30, Oleg Drokin wrote: > > Hello! > > > > On Mon, Aug 05, 2002 at 08:19:05PM +0200, Roland Kuhn wrote: > > > > > > ftp://ftp.suse.com/pub/people/mason/patches/data-logging/02-commit_super-8-relocation.diff.gz > > > >From there I get 'permission denied', but I got it somewhere else (google > > > is great). > > > However, it does not apply cleanly to 2.4.19. It is already partly in, as > > > it seems, but there are some rejects that are not obvious to fix for me. > > > If this patch still makes sense, it would be great if someone with more > > > knowledge/experience than me could have a look... > > The stack traces you sent earlier show a few procs stuck waiting for the > transaction to begin, but they don't show which process is currently in > a transaction (this is who they are waiting on). > The ShowTasks output is attached (it's a RedHat patched klogd which resolves symbols on the fly). To me it looks like kupdated is indeed inside do_journal_end().
> Oleg is right, they are probably waiting on kupdated, since the FS might > get marked dirty faster than it can clear it. > > Another possibility is ctime/mtime updates during write. > In our application there are always at least one writer and one reader active in one directory of the partition, both with data rates up to 10MB/s. The reader uses a block size of 128kB, but I don't know about the writer.
> So, on ftp.suse.com/pub/people/mason/patches/data-logging > > Apply: > 01-relocation-4.diff > 02-commit_super-8.diff # this is the one you want, but it depends on 01. > Okay, will try.
> And try again. If that doesn't do it, try 04-write_times.diff (which > doesn't depend on anything). > Is there a documentation about what this patch does as a whole?
Ciao, Roland
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