* [dm-crypt] luks, swap and crash @ 2011-05-02 9:50 François Chenais 2011-05-02 15:21 ` Heinz Diehl 2011-05-02 15:59 ` Arno Wagner 0 siblings, 2 replies; 12+ messages in thread From: François Chenais @ 2011-05-02 9:50 UTC (permalink / raw) To: dm-crypt [-- Attachment #1: Type: text/plain, Size: 281 bytes --] Hello, I have some computers crashing while using crypted swap partition. The system doesn't crash if I remove the swap. The system crash again if I use a swap file on a crypted filesystem. Is this a known issue ? Thanks in advance for your "lights" François [-- Attachment #2: Type: text/html, Size: 346 bytes --] ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [dm-crypt] luks, swap and crash 2011-05-02 9:50 [dm-crypt] luks, swap and crash François Chenais @ 2011-05-02 15:21 ` Heinz Diehl 2011-05-02 15:59 ` Arno Wagner 1 sibling, 0 replies; 12+ messages in thread From: Heinz Diehl @ 2011-05-02 15:21 UTC (permalink / raw) To: dm-crypt On 02.05.2011, François Chenais wrote: > The system doesn't crash if I remove the swap. > The system crash again if I use a swap file on a crypted filesystem. > Is this a known issue ? On my machines, LUKS/dmcrypt encrypted swap works flawlessly. Could you please provide some more information on what's going on on your machine when this happens? ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [dm-crypt] luks, swap and crash 2011-05-02 9:50 [dm-crypt] luks, swap and crash François Chenais 2011-05-02 15:21 ` Heinz Diehl @ 2011-05-02 15:59 ` Arno Wagner 2011-05-02 19:21 ` François Chenais 1 sibling, 1 reply; 12+ messages in thread From: Arno Wagner @ 2011-05-02 15:59 UTC (permalink / raw) To: dm-crypt What do you mean by "crash"? Arno On Mon, May 02, 2011 at 11:50:25AM +0200, Fran?ois Chenais wrote: > Hello, > > I have some computers crashing while using crypted swap partition. > > The system doesn't crash if I remove the swap. > The system crash again if I use a swap file on a crypted filesystem. > > Is this a known issue ? > > > Thanks in advance for your "lights" > > Fran?ois > _______________________________________________ > dm-crypt mailing list > dm-crypt@saout.de > http://www.saout.de/mailman/listinfo/dm-crypt -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [dm-crypt] luks, swap and crash 2011-05-02 15:59 ` Arno Wagner @ 2011-05-02 19:21 ` François Chenais 2011-05-03 4:37 ` Arno Wagner 0 siblings, 1 reply; 12+ messages in thread From: François Chenais @ 2011-05-02 19:21 UTC (permalink / raw) To: dm-crypt [-- Attachment #1: Type: text/plain, Size: 1772 bytes --] 2011/5/2 Arno Wagner <arno@wagner.name> > What do you mean by "crash"? > > Crash = the computer is frozen, nothing happens. The only way to bring it back to life is to power off/on. I knew U'll ask me some logs but ... :) Actually, I have no logs because log files are written on encrypted file system and the file system is encrypted at boot time; each time with at new unknown random key ; so I have NO file, NO LOG, Nothing, as in a black hole !:P I don't have change anything because it's a production server. I need to take time to reproduce the crash on a test machine. ... but I'm interested about the list feedback about same experience. The system is CentOS 5.5. > Arno > > On Mon, May 02, 2011 at 11:50:25AM +0200, Fran?ois Chenais wrote: > > Hello, > > > > I have some computers crashing while using crypted swap partition. > > > > The system doesn't crash if I remove the swap. > > The system crash again if I use a swap file on a crypted filesystem. > > > > Is this a known issue ? > > > > > > Thanks in advance for your "lights" > > > > Fran?ois > > > _______________________________________________ > > dm-crypt mailing list > > dm-crypt@saout.de > > http://www.saout.de/mailman/listinfo/dm-crypt > > > -- > Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: > arno@wagner.name > GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 > 338F > ---- > Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans > > If it's in the news, don't worry about it. The very definition of > "news" is "something that hardly ever happens." -- Bruce Schneier > _______________________________________________ > dm-crypt mailing list > dm-crypt@saout.de > http://www.saout.de/mailman/listinfo/dm-crypt > [-- Attachment #2: Type: text/html, Size: 2870 bytes --] ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [dm-crypt] luks, swap and crash 2011-05-02 19:21 ` François Chenais @ 2011-05-03 4:37 ` Arno Wagner 2011-05-03 7:28 ` François Chenais 0 siblings, 1 reply; 12+ messages in thread From: Arno Wagner @ 2011-05-03 4:37 UTC (permalink / raw) To: dm-crypt Ok, hard freeze is not good. One thing you could try is a serial console. This needs only a boot option to the kernel. CentOS 5.5 is also pretty recent. Unless Milan knows what is going on here, a recreation in a test machine would probably be the best next step. Hmm, do you by any chance encrypt swap _twice_? BTW, pretty peculiar setup. I take it this machine installs itself from an image to the encrypted filesystem (with random key) on boot? JUst out of curiosity, how long does that take? Arno On Mon, May 02, 2011 at 09:21:41PM +0200, Fran?ois Chenais wrote: > 2011/5/2 Arno Wagner <arno@wagner.name> > > > What do you mean by "crash"? > > > > > Crash = the computer is frozen, nothing happens. The only way to bring it > back to life is to power off/on. > > > I knew U'll ask me some logs but ... :) > > Actually, I have no logs because log files are written on encrypted file > system and the file system > is encrypted at boot time; each time with at new unknown random key ; so I > have NO file, NO LOG, Nothing, > as in a black hole !:P > > I don't have change anything because it's a production server. > I need to take time to reproduce the crash on a test machine. > > ... but I'm interested about the list feedback about same experience. > > > The system is CentOS 5.5. > > > > > > Arno > > > > On Mon, May 02, 2011 at 11:50:25AM +0200, Fran?ois Chenais wrote: > > > Hello, > > > > > > I have some computers crashing while using crypted swap partition. > > > > > > The system doesn't crash if I remove the swap. > > > The system crash again if I use a swap file on a crypted filesystem. > > > > > > Is this a known issue ? > > > > > > > > > Thanks in advance for your "lights" > > > > > > Fran?ois > > > > > _______________________________________________ > > > dm-crypt mailing list > > > dm-crypt@saout.de > > > http://www.saout.de/mailman/listinfo/dm-crypt > > > > > > -- > > Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: > > arno@wagner.name > > GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 > > 338F > > ---- > > Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans > > > > If it's in the news, don't worry about it. The very definition of > > "news" is "something that hardly ever happens." -- Bruce Schneier > > _______________________________________________ > > dm-crypt mailing list > > dm-crypt@saout.de > > http://www.saout.de/mailman/listinfo/dm-crypt > > > _______________________________________________ > dm-crypt mailing list > dm-crypt@saout.de > http://www.saout.de/mailman/listinfo/dm-crypt -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [dm-crypt] luks, swap and crash 2011-05-03 4:37 ` Arno Wagner @ 2011-05-03 7:28 ` François Chenais 2011-05-03 7:59 ` Milan Broz 2011-05-03 8:19 ` Arno Wagner 0 siblings, 2 replies; 12+ messages in thread From: François Chenais @ 2011-05-03 7:28 UTC (permalink / raw) To: dm-crypt [-- Attachment #1: Type: text/plain, Size: 3787 bytes --] 2011/5/3 Arno Wagner <arno@wagner.name> > Ok, hard freeze is not good. > > One thing you could try is a serial console. This needs only > a boot option to the kernel. > > CentOS 5.5 is also pretty recent. > > Even if the kernel is patched, the version 2.6.18 is not so recent :P The system used version 1.0.3 of cryptsetup :/ Unless Milan knows what is going on here, a recreation in > a test machine would probably be the best next step. > > Hmm, do you by any chance encrypt swap _twice_? > > Hmmm, why _twice_ and what for ? BTW, pretty peculiar setup. I take it this machine installs > itself from an image to the encrypted filesystem (with random > key) on boot? JUst out of curiosity, how long does that > take? > > Just temporary FS are encrypted. So the time spent depends of the size of the FS. But sure, it's not user friendly :D François > Arno > > > On Mon, May 02, 2011 at 09:21:41PM +0200, Fran?ois Chenais wrote: > > 2011/5/2 Arno Wagner <arno@wagner.name> > > > > > What do you mean by "crash"? > > > > > > > > Crash = the computer is frozen, nothing happens. The only way to bring it > > back to life is to power off/on. > > > > > > I knew U'll ask me some logs but ... :) > > > > Actually, I have no logs because log files are written on encrypted > file > > system and the file system > > is encrypted at boot time; each time with at new unknown random key ; > so I > > have NO file, NO LOG, Nothing, > > as in a black hole !:P > > > > I don't have change anything because it's a production server. > > I need to take time to reproduce the crash on a test machine. > > > > ... but I'm interested about the list feedback about same experience. > > > > > > The system is CentOS 5.5. > > > > > > > > > > > Arno > > > > > > On Mon, May 02, 2011 at 11:50:25AM +0200, Fran?ois Chenais wrote: > > > > Hello, > > > > > > > > I have some computers crashing while using crypted swap partition. > > > > > > > > The system doesn't crash if I remove the swap. > > > > The system crash again if I use a swap file on a crypted filesystem. > > > > > > > > Is this a known issue ? > > > > > > > > > > > > Thanks in advance for your "lights" > > > > > > > > Fran?ois > > > > > > > _______________________________________________ > > > > dm-crypt mailing list > > > > dm-crypt@saout.de > > > > http://www.saout.de/mailman/listinfo/dm-crypt > > > > > > > > > -- > > > Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: > > > arno@wagner.name > > > GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 > > > 338F > > > ---- > > > Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans > > > > > > If it's in the news, don't worry about it. The very definition of > > > "news" is "something that hardly ever happens." -- Bruce Schneier > > > _______________________________________________ > > > dm-crypt mailing list > > > dm-crypt@saout.de > > > http://www.saout.de/mailman/listinfo/dm-crypt > > > > > > _______________________________________________ > > dm-crypt mailing list > > dm-crypt@saout.de > > http://www.saout.de/mailman/listinfo/dm-crypt > > > -- > Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: > arno@wagner.name > GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 > 338F > ---- > Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans > > If it's in the news, don't worry about it. The very definition of > "news" is "something that hardly ever happens." -- Bruce Schneier > _______________________________________________ > dm-crypt mailing list > dm-crypt@saout.de > http://www.saout.de/mailman/listinfo/dm-crypt > [-- Attachment #2: Type: text/html, Size: 5927 bytes --] ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [dm-crypt] luks, swap and crash 2011-05-03 7:28 ` François Chenais @ 2011-05-03 7:59 ` Milan Broz 2011-05-03 8:19 ` Arno Wagner 1 sibling, 0 replies; 12+ messages in thread From: Milan Broz @ 2011-05-03 7:59 UTC (permalink / raw) To: dm-crypt On 05/03/2011 09:28 AM, François Chenais wrote: > CentOS 5.5 is also pretty recent. > > > Even if the kernel is patched, the version 2.6.18 is not so recent :P > The system used version 1.0.3 of cryptsetup :/ If it crashes or freezes during some operation the userspace is not related here at all. There is no known problem with kernel and encrypted swap in RHEL5.6. You need at least process state when this happens - setup some console and run alt-sysrq + t and post it somewhere. For userspace - yes, cryptsetup 1.0.3 in RHEL 5.5 is old and buggy, and there will update in 5.7. The worst issue I know about is the cryptsetup 1.0.3 crashes with large keys (>256bit) (because of lacking support in kernel for XTS mode, it is not big issue) https://bugzilla.redhat.com/show_bug.cgi?id=678011 Milan ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [dm-crypt] luks, swap and crash 2011-05-03 7:28 ` François Chenais 2011-05-03 7:59 ` Milan Broz @ 2011-05-03 8:19 ` Arno Wagner 2011-05-03 9:24 ` Francois Chenais 2011-05-03 9:56 ` Milan Broz 1 sibling, 2 replies; 12+ messages in thread From: Arno Wagner @ 2011-05-03 8:19 UTC (permalink / raw) To: dm-crypt On Tue, May 03, 2011 at 09:28:31AM +0200, Fran?ois Chenais wrote: > 2011/5/3 Arno Wagner <arno@wagner.name> > > > Ok, hard freeze is not good. > > > > One thing you could try is a serial console. This needs only > > a boot option to the kernel. > > > > CentOS 5.5 is also pretty recent. > > > > > Even if the kernel is patched, the version 2.6.18 is not so recent :P > The system used version 1.0.3 of cryptsetup :/ Oops, seems my version lookup-fu is badly broken. 2.6.18 is indeed mostly of historic interest and 1.0.3 is also pretty old. > Unless Milan knows what is going on here, a recreation in > > a test machine would probably be the best next step. > > > > Hmm, do you by any chance encrypt swap _twice_? > > > > > Hmmm, why _twice_ and what for ? The idea was that maybe there is a full-disk encryptiopn and then a partition encryption on top. Arno > BTW, pretty peculiar setup. I take it this machine installs > > itself from an image to the encrypted filesystem (with random > > key) on boot? JUst out of curiosity, how long does that > > take? > > > > > Just temporary FS are encrypted. So the time spent depends of the size of > the > FS. But sure, it's not user friendly :D > > > Fran?ois > > > > > > Arno > > > > > > On Mon, May 02, 2011 at 09:21:41PM +0200, Fran?ois Chenais wrote: > > > 2011/5/2 Arno Wagner <arno@wagner.name> > > > > > > > What do you mean by "crash"? > > > > > > > > > > > Crash = the computer is frozen, nothing happens. The only way to bring it > > > back to life is to power off/on. > > > > > > > > > I knew U'll ask me some logs but ... :) > > > > > > Actually, I have no logs because log files are written on encrypted > > file > > > system and the file system > > > is encrypted at boot time; each time with at new unknown random key ; > > so I > > > have NO file, NO LOG, Nothing, > > > as in a black hole !:P > > > > > > I don't have change anything because it's a production server. > > > I need to take time to reproduce the crash on a test machine. > > > > > > ... but I'm interested about the list feedback about same experience. > > > > > > > > > The system is CentOS 5.5. > > > > > > > > > > > > > > > > Arno > > > > > > > > On Mon, May 02, 2011 at 11:50:25AM +0200, Fran?ois Chenais wrote: > > > > > Hello, > > > > > > > > > > I have some computers crashing while using crypted swap partition. > > > > > > > > > > The system doesn't crash if I remove the swap. > > > > > The system crash again if I use a swap file on a crypted filesystem. > > > > > > > > > > Is this a known issue ? > > > > > > > > > > > > > > > Thanks in advance for your "lights" > > > > > > > > > > Fran?ois > > > > > > > > > _______________________________________________ > > > > > dm-crypt mailing list > > > > > dm-crypt@saout.de > > > > > http://www.saout.de/mailman/listinfo/dm-crypt > > > > > > > > > > > > -- > > > > Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: > > > > arno@wagner.name > > > > GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 > > > > 338F > > > > ---- > > > > Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans > > > > > > > > If it's in the news, don't worry about it. The very definition of > > > > "news" is "something that hardly ever happens." -- Bruce Schneier > > > > _______________________________________________ > > > > dm-crypt mailing list > > > > dm-crypt@saout.de > > > > http://www.saout.de/mailman/listinfo/dm-crypt > > > > > > > > > _______________________________________________ > > > dm-crypt mailing list > > > dm-crypt@saout.de > > > http://www.saout.de/mailman/listinfo/dm-crypt > > > > > > -- > > Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: > > arno@wagner.name > > GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 > > 338F > > ---- > > Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans > > > > If it's in the news, don't worry about it. The very definition of > > "news" is "something that hardly ever happens." -- Bruce Schneier > > _______________________________________________ > > dm-crypt mailing list > > dm-crypt@saout.de > > http://www.saout.de/mailman/listinfo/dm-crypt > > > _______________________________________________ > dm-crypt mailing list > dm-crypt@saout.de > http://www.saout.de/mailman/listinfo/dm-crypt -- Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F ---- Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans If it's in the news, don't worry about it. The very definition of "news" is "something that hardly ever happens." -- Bruce Schneier ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [dm-crypt] luks, swap and crash 2011-05-03 8:19 ` Arno Wagner @ 2011-05-03 9:24 ` Francois Chenais 2011-05-03 9:56 ` Milan Broz 1 sibling, 0 replies; 12+ messages in thread From: Francois Chenais @ 2011-05-03 9:24 UTC (permalink / raw) To: Arno Wagner; +Cc: dm-crypt@saout.de -- f c Le 3 mai 2011 à 10:19, Arno Wagner <arno@wagner.name> a écrit : > On Tue, May 03, 2011 at 09:28:31AM +0200, Fran?ois Chenais wrote: >> 2011/5/3 Arno Wagner <arno@wagner.name> >> >>> Ok, hard freeze is not good. >>> >>> One thing you could try is a serial console. This needs only >>> a boot option to the kernel. >>> >>> CentOS 5.5 is also pretty recent. >>> >>> >> Even if the kernel is patched, the version 2.6.18 is not so recent :P >> The system used version 1.0.3 of cryptsetup :/ > > Oops, seems my version lookup-fu is badly broken. 2.6.18 is indeed > mostly of historic interest and 1.0.3 is also pretty old. > >> Unless Milan knows what is going on here, a recreation in >>> a test machine would probably be the best next step. >>> >>> Hmm, do you by any chance encrypt swap _twice_? >>> >>> >> Hmmm, why _twice_ and what for ? > > The idea was that maybe there is a full-disk encryptiopn > and then a partition encryption on top. > Oki. But in this case, the swap is on a dedicated partition. No double encryption. > Arno > > >> BTW, pretty peculiar setup. I take it this machine installs >>> itself from an image to the encrypted filesystem (with random >>> key) on boot? JUst out of curiosity, how long does that >>> take? >>> >>> >> Just temporary FS are encrypted. So the time spent depends of the size of >> the >> FS. But sure, it's not user friendly :D >> >> >> Fran?ois >> >> >> >> >>> Arno >>> >>> >>> On Mon, May 02, 2011 at 09:21:41PM +0200, Fran?ois Chenais wrote: >>>> 2011/5/2 Arno Wagner <arno@wagner.name> >>>> >>>>> What do you mean by "crash"? >>>>> >>>>> >>>> Crash = the computer is frozen, nothing happens. The only way to bring it >>>> back to life is to power off/on. >>>> >>>> >>>> I knew U'll ask me some logs but ... :) >>>> >>>> Actually, I have no logs because log files are written on encrypted >>> file >>>> system and the file system >>>> is encrypted at boot time; each time with at new unknown random key ; >>> so I >>>> have NO file, NO LOG, Nothing, >>>> as in a black hole !:P >>>> >>>> I don't have change anything because it's a production server. >>>> I need to take time to reproduce the crash on a test machine. >>>> >>>> ... but I'm interested about the list feedback about same experience. >>>> >>>> >>>> The system is CentOS 5.5. >>>> >>>> >>>> >>>> >>>>> Arno >>>>> >>>>> On Mon, May 02, 2011 at 11:50:25AM +0200, Fran?ois Chenais wrote: >>>>>> Hello, >>>>>> >>>>>> I have some computers crashing while using crypted swap partition. >>>>>> >>>>>> The system doesn't crash if I remove the swap. >>>>>> The system crash again if I use a swap file on a crypted filesystem. >>>>>> >>>>>> Is this a known issue ? >>>>>> >>>>>> >>>>>> Thanks in advance for your "lights" >>>>>> >>>>>> Fran?ois >>>>> >>>>>> _______________________________________________ >>>>>> dm-crypt mailing list >>>>>> dm-crypt@saout.de >>>>>> http://www.saout.de/mailman/listinfo/dm-crypt >>>>> >>>>> >>>>> -- >>>>> Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: >>>>> arno@wagner.name >>>>> GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 >>>>> 338F >>>>> ---- >>>>> Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans >>>>> >>>>> If it's in the news, don't worry about it. The very definition of >>>>> "news" is "something that hardly ever happens." -- Bruce Schneier >>>>> _______________________________________________ >>>>> dm-crypt mailing list >>>>> dm-crypt@saout.de >>>>> http://www.saout.de/mailman/listinfo/dm-crypt >>>>> >>> >>>> _______________________________________________ >>>> dm-crypt mailing list >>>> dm-crypt@saout.de >>>> http://www.saout.de/mailman/listinfo/dm-crypt >>> >>> >>> -- >>> Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: >>> arno@wagner.name >>> GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 >>> 338F >>> ---- >>> Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans >>> >>> If it's in the news, don't worry about it. The very definition of >>> "news" is "something that hardly ever happens." -- Bruce Schneier >>> _______________________________________________ >>> dm-crypt mailing list >>> dm-crypt@saout.de >>> http://www.saout.de/mailman/listinfo/dm-crypt >>> > >> _______________________________________________ >> dm-crypt mailing list >> dm-crypt@saout.de >> http://www.saout.de/mailman/listinfo/dm-crypt > > > -- > Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name > GnuPG: ID: 1E25338F FP: 0C30 5782 9D93 F785 E79C 0296 797F 6B50 1E25 338F > ---- > Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans > > If it's in the news, don't worry about it. The very definition of > "news" is "something that hardly ever happens." -- Bruce Schneier > _______________________________________________ > dm-crypt mailing list > dm-crypt@saout.de > http://www.saout.de/mailman/listinfo/dm-crypt ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [dm-crypt] luks, swap and crash 2011-05-03 8:19 ` Arno Wagner 2011-05-03 9:24 ` Francois Chenais @ 2011-05-03 9:56 ` Milan Broz 2011-05-05 20:04 ` Francois Chenais 1 sibling, 1 reply; 12+ messages in thread From: Milan Broz @ 2011-05-03 9:56 UTC (permalink / raw) To: dm-crypt On 05/03/2011 10:19 AM, Arno Wagner wrote: > Oops, seems my version lookup-fu is badly broken. 2.6.18 is indeed > mostly of historic interest and 1.0.3 is also pretty old. Just note: in RHEL/CentOS the base kernel version means almost nothing, there is many backports. We try to keep device-mapper as close upstream as possible but for some changes is is no longer possible (because RHEL kernel keeps ABI compatible calls). Milan ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [dm-crypt] luks, swap and crash 2011-05-03 9:56 ` Milan Broz @ 2011-05-05 20:04 ` Francois Chenais 2011-05-06 15:09 ` Milan Broz 0 siblings, 1 reply; 12+ messages in thread From: Francois Chenais @ 2011-05-05 20:04 UTC (permalink / raw) To: Milan Broz; +Cc: dm-crypt@saout.de -- f c Le 3 mai 2011 à 11:56, Milan Broz <mbroz@redhat.com> a écrit : > On 05/03/2011 10:19 AM, Arno Wagner wrote: > >> Oops, seems my version lookup-fu is badly broken. 2.6.18 is indeed >> mostly of historic interest and 1.0.3 is also pretty old. > > Just note: in RHEL/CentOS the base kernel version means almost nothing, > there is many backports. > > We try to keep device-mapper as close upstream as possible but > for some changes is is no longer possible (because RHEL kernel keeps > ABI compatible calls). Here is a link about something similar on gentoo system. http://forums.gentoo.org/viewtopic-t-852353-start-0.html > Milan > _______________________________________________ > dm-crypt mailing list > dm-crypt@saout.de > http://www.saout.de/mailman/listinfo/dm-crypt ^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [dm-crypt] luks, swap and crash 2011-05-05 20:04 ` Francois Chenais @ 2011-05-06 15:09 ` Milan Broz 0 siblings, 0 replies; 12+ messages in thread From: Milan Broz @ 2011-05-06 15:09 UTC (permalink / raw) To: Francois Chenais; +Cc: dm-crypt@saout.de > Here is a link about something similar on gentoo system. > http://forums.gentoo.org/viewtopic-t-852353-start-0.html Thanks, nice test... I was able to lock up older kernel with that but 2.6.38.5 (and 2.6.39-rc) works without problems for me (at least for this short test). So I hope the problem was fixed upstream... (There was big changes both in dmcrypt and workqueue subsystem.) Please let me know if you can still lock the system this way (with upstream kernel). Milan ^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2011-05-06 15:09 UTC | newest] Thread overview: 12+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2011-05-02 9:50 [dm-crypt] luks, swap and crash François Chenais 2011-05-02 15:21 ` Heinz Diehl 2011-05-02 15:59 ` Arno Wagner 2011-05-02 19:21 ` François Chenais 2011-05-03 4:37 ` Arno Wagner 2011-05-03 7:28 ` François Chenais 2011-05-03 7:59 ` Milan Broz 2011-05-03 8:19 ` Arno Wagner 2011-05-03 9:24 ` Francois Chenais 2011-05-03 9:56 ` Milan Broz 2011-05-05 20:04 ` Francois Chenais 2011-05-06 15:09 ` Milan Broz
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