Re: [gentoo-user] Re: Heads-up: Several kernel versions have severe EXT4 data corruption bug
Am Donnerstag, 25. Oktober 2012, 22:04:12 schrieb Kerin Millar: Grant Edwards wrote: On 2012-10-25, Kerin Millarkerfra...@fastmail.co.uk wrote: The comment you linked to was fairly bereft of technical content, That comment was from _Ted_Ts'o_ for pete's sake. I don't care it was from the heavens upon high. The only remark that was meaningful in a technical sense was the thoroughly inconclusive Update, suggesting (but not establishing) that it might be related to certain combinations of mount options. The rest was just hand-waving about how it couldn't be a big deal because, if it was, lots of people would have been complaining, which is denying the antecedent. Let's separate two fundamental issues here. One issue is that of data corruption, which is a big deal. I'm sure most of us would agree on that point. That such an issue is going to generate news - and no small degree of discussion - is a given. People will want to know what the problem is and what they can do about it in order to be safe. What did Ted expect? The second issue is that of the scope of the bug. This is where I took issue with the comment. The overall meaning of his comment could be interpreted as Your collective concerns are overblown because the scope of this bug is minimal. Oh, and I think it may have something to do with these mount options which, being esoteric, nobody in their right mind would be using anyway so, hey, big deal. The fact of the matter is that the investigation, even as I write this, is ongoing and no patch has been produced. Consider that for a moment. It doesn't matter how brilliant Ted is, or that you have seen fit to sample his mucus. Telling us all that we should be unconcerned because the scope is minimal *before* he and his peers have completed their investigation and a line been drawn under the affair was simply premature. That the bug reporter has since demonstrated that the corruption can occur in kernel versions that don't include commit eeecef0af5 - kernels which we were previously told were not affected - only serves to demonstrate this point. and that ONLY two people who did some REALLY stupid stuff to stumble over that bug are hit by it, should tell you something. For fucks sake, if you had read the thread, even google uses ext4 and they did not hit it. So much about its likelyhood. Bugs happen. And this bug is so not a problem. -- #163933
Re: [gentoo-user] Re: Heads-up: Several kernel versions have severe EXT4 data corruption bug
On Sat, Oct 27, 2012 at 1:19 PM, Volker Armin Hemmann volkerar...@googlemail.com wrote: [snip] and that ONLY two people who did some REALLY stupid stuff to stumble over that bug are hit by it, should tell you something. Actually, it seems only *one* person can reliably reproduce this bug: https://plus.google.com/u/0/117091380454742934025/posts/f5a1eHxUzSh The problem is no one other than one person who is using non-standard mount options (which I should have disabled by default, because they are known to be problematic) has been able to reliably reproduce the problem. But there is a lot of news sites who'll never miss a chance to scream that the sky is falling. I don't think we'll see this last update from Ted neither on Slashdot nor in Phoronix. Regards. -- Canek Peláez Valdés Posgrado en Ciencia e Ingeniería de la Computación Universidad Nacional Autónoma de México
[gentoo-user] Re: Heads-up: Several kernel versions have severe EXT4 data corruption bug
On 2012-10-25, Kerin Millar kerfra...@fastmail.co.uk wrote: The comment you linked to was fairly bereft of technical content, That comment was from _Ted_Ts'o_ for pete's sake. When Ted T'so blows his nose, it's full of technical content. -- Grant Edwards grant.b.edwardsYow! ... If I had heart at failure right now, gmail.comI couldn't be a more fortunate man!!
[gentoo-user] Re: Heads-up: Several kernel versions have severe EXT4 data corruption bug
Grant Edwards wrote: That comment was from _Ted_Ts'o_ for pete's sake. When Ted T'so blows his nose, it's full of technical content. That just made my day. Thanks :) -- Remy signature.asc Description: OpenPGP digital signature
Re: [gentoo-user] Re: Heads-up: Several kernel versions have severe EXT4 data corruption bug
Grant Edwards wrote: On 2012-10-25, Kerin Millarkerfra...@fastmail.co.uk wrote: The comment you linked to was fairly bereft of technical content, That comment was from _Ted_Ts'o_ for pete's sake. I don't care it was from the heavens upon high. The only remark that was meaningful in a technical sense was the thoroughly inconclusive Update, suggesting (but not establishing) that it might be related to certain combinations of mount options. The rest was just hand-waving about how it couldn't be a big deal because, if it was, lots of people would have been complaining, which is denying the antecedent. Let's separate two fundamental issues here. One issue is that of data corruption, which is a big deal. I'm sure most of us would agree on that point. That such an issue is going to generate news - and no small degree of discussion - is a given. People will want to know what the problem is and what they can do about it in order to be safe. What did Ted expect? The second issue is that of the scope of the bug. This is where I took issue with the comment. The overall meaning of his comment could be interpreted as Your collective concerns are overblown because the scope of this bug is minimal. Oh, and I think it may have something to do with these mount options which, being esoteric, nobody in their right mind would be using anyway so, hey, big deal. The fact of the matter is that the investigation, even as I write this, is ongoing and no patch has been produced. Consider that for a moment. It doesn't matter how brilliant Ted is, or that you have seen fit to sample his mucus. Telling us all that we should be unconcerned because the scope is minimal *before* he and his peers have completed their investigation and a line been drawn under the affair was simply premature. That the bug reporter has since demonstrated that the corruption can occur in kernel versions that don't include commit eeecef0af5 - kernels which we were previously told were not affected - only serves to demonstrate this point. --Kerin
[gentoo-user] Re: Heads-up: Several kernel versions have severe EXT4 data corruption bug
On 25/10/12 06:04, Canek Peláez Valdés wrote: On Wed, Oct 24, 2012 at 9:51 PM, Kerin Millar kerfra...@fastmail.co.uk wrote: [snip] On my part, I will continue to be concerned until the investigation has fully run its course. That is, of course, your prerogative. I just posted a comment from someone that (IMHO) actually knows what he's talking about. What anyone in this list does with that information, it's their problem. What people here are doing is being careful exactly because they don't know what's happening. Being careful does not equal panicking. Not being careful when there's possible danger is just as bad as panicking.
