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Date: Wed, 16 Sep 2009 08:32:12 -0400 From: Clemens Eisserer <linuxhippy@...il.com> To: linux-kernel@...r.kernel.org Subject: Re: Howto switch off ext4's delayed allocation? Hi, Just happend again to me. After the intel driver crashed my system, the source-file I was working on was empty. Fourtunatly eclipse has a history-log. Isn't there a way to switch off the more "dangerous" optimizations in ext4? I already searched howto do this, but from what I've seen there was only discussion about providing a switch for disabling delayed allocation, but it was never done? Thanks, Clemens 2009/9/9 Clemens Eisserer <linuxhippy@...il.com>: > Hi, > > Every since switching to ext4, I suffer fromt he empty files problem > after crashes. > Since GEM/KMS was included, as well as the changes to the usb-serial > subsystem I experience crashes from time to time. > > As far as I understand this is caused by delayed allocation. > I really enjoy the performance benefits of ext4, and I know > applications should be fixed - but having this problem seen with so > many apps I doubt it will ever happen. (Kwrite, bash itself, umtsmon, > ...). > > Is there any way to disable delayed allocation? (running 2.6.31rc8) > > Thank you in advance, Clemens > -- 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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