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Message-ID: <20130311191753.GA439@x4> Date: Mon, 11 Mar 2013 20:17:53 +0100 From: Markus Trippelsdorf <markus@...ppelsdorf.de> To: linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: torrent hash failures since 3.9.0-rc1 On 2013.03.11 at 18:18 +0100, Markus Trippelsdorf wrote: > I get hash failures on "completed" torrents since 3.9.0-rc1 (Linux 3.8 > seems to be fine). What happens is that the torrents apparently complete > successfully. After reboot however the hash check fails and there are > missing (or corrupted) chunks. I've tested this with two different > clients (rtorrent and aria2c) and both are affected. So I think this > might be a filesystem issue. > > /dev/sda ext4 1.4T 666G 640G 51% /var > /dev/sda on /var type ext4 (rw,noatime,data=ordered) > > I use ECC memory (and there is nothing in the logs). To reproduce this issue just do the following: % wget http://torrents.linuxmint.com/torrents/linuxmint-12-gnome-cd-nocodecs-64bit.iso.torrent % rtorrent linuxmint-12-gnome-cd-nocodecs-64bit.iso.torrent (Wait until the torrent finishes) % sudo echo 3 > /proc/sys/vm/drop_caches (Rehash the torrent (Ctrl-R)) The torrent doesn't rehash successfully and a few hunks are missing/corrupted and need to be downloaded again. -- Markus -- 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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