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Message-Id: <1190656918.13955.7.camel@dyn9047017100.beaverton.ibm.com> Date: Mon, 24 Sep 2007 11:01:58 -0700 From: Badari Pulavarty <pbadari@...il.com> To: Andy Whitcroft <apw@...dowen.org> Cc: Linus Torvalds <torvalds@...ux-foundation.org>, sct@...hat.com, Andrew Morton <akpm@...ux-foundation.org>, adilger@...sterfs.com, ext4 <linux-ext4@...r.kernel.org>, lkml <linux-kernel@...r.kernel.org>, mel@....ul.ie Subject: Re: 2.6.23-rc6: hanging ext3 dbench tests Hi Andy, I managed to reproduce the dbench problem. (not sure if its the same thing or not - but symptoms are same). My problem has nothing to do with ext3. I can produce it on ext2, jfs also. Whats happening on my machine is .. dbench forks of 4 children and sends them a signal to start the work. 3 out of 4 children gets the signal and does the work. One of the child never gets the signal so, it waits forever in pause(). So, parent waits for a longtime to kill it. BTW, I was trying to find out when this problem started showing up. So far, I managed to track it to 2.6.23-rc4. (2.6.23-rc3 doesn't seem to have this problem). I am going to do bi-sect and find out which patch caused this. I am using dbench-2.0 which consistently reproduces the problem on my x86-64 box. Did you find anything new with your setup ? Thanks, Badari - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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