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Message-ID: <20140131030028.GB7118@thunk.org> Date: Thu, 30 Jan 2014 22:00:28 -0500 From: Theodore Ts'o <tytso@....edu> To: Luca Ognibene <luca.ognibene@...il.com> Cc: linux-kernel@...r.kernel.org, linux-ext4@...r.kernel.org Subject: Re: same ext4 file system corruption on different machines On Thu, Jan 30, 2014 at 08:59:09AM +0100, Luca Ognibene wrote: > Yes it's indeed very strange.. i tend to rule out application errors > because i don't write directly to the device so i don't think i can > break a filesystem from userspace. I've checked previous and next blocks > and they seem ok, only the block 524320 is getting corrupted. Any idea > on what should i look for now? Are you willing to try 3.12.9 or 3.13.1 upstream kernel? Let's see if changing the kernel makes any difference. I don't recall any ext4 problems like this, but maybe it's device driver problem. The other thing I'd ask is whether you can swap out the hard drive interface --- can you use a USB 3.0 attached drive, or something like that? One final thing that you could try doing, depending on how easily/quickly you can reproduce the problem, is to use blktrace and see if you can catch who or what is writing to that specific block which is getting corrupted. - Ted -- 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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