From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: raid5 hang on get_active_stripe Date: Tue, 13 Jun 2006 14:53:08 -0400 Message-ID: <448F0994.6050704@tmr.com> References: <5d96567b0603060346r768a0ee1i8d8170cf9ba4bac1@mail.gmail.com> <17429.64926.100005.904328@cse.unsw.edu.au> <17522.29813.189944.397154@cse.unsw.edu.au> <17527.38282.35857.117651@cse.unsw.edu.au> <17529.37347.782285.77442@cse.unsw.edu.au> <17531.35050.632471.433333@cse.unsw.edu.au> <17532.59212.364233.765155@cse.unsw.edu.au> <17532.62343.933852.982391@cse.unsw.edu.au> <17534.22056.981033.686846@cse.unsw.edu.au> <17535.59496.431182.785563@cse.unsw.edu.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <17535.59496.431182.785563@cse.unsw.edu.au> Sender: linux-raid-owner@vger.kernel.org To: Neil Brown Cc: dean gaudet , Patrik Jonsson , linux-raid@vger.kernel.org List-Id: linux-raid.ids Neil Brown wrote: >On Friday June 2, dean@arctic.org wrote: > > >>On Thu, 1 Jun 2006, Neil Brown wrote: >> >> >> >>>I've got one more long-shot I would like to try first. If you could >>>backout that change to ll_rw_block, and apply this patch instead. >>>Then when it hangs, just cat the stripe_cache_active file and see if >>>that unplugs things or not (cat it a few times). >>> >>> >>nope that didn't unstick it... i had to raise stripe_cache_size (from 256 >>to 768... 512 wasn't enough)... >> >>-dean >> >> > >Ok, thanks. >I still don't know what is really going on, but I'm 99.9863% sure this >will fix it, and is a reasonable thing to do. >(Yes, I lose a ';'. That is deliberate). > >Please let me know what this proves, and thanks again for your >patience. > >NeilBrown > [...snip...] Will that fix be in 2.6.17? -- bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979