Bug#765572: Please provide a better upgrade process
On Thu, Oct 16, 2014 at 12:35 PM, Klaus Ethgen kl...@ethgen.de wrote: The new eatmydata put the .so file to another location so while upgrading the system, there will be many of the following error messages when apt is run with eatmydata: I feel you are doing something really wrong in using apt with eatmydata. I hope you will not blame someone different to yourself if some bad things occur to your system. ERROR: ld.so: object '/usr/lib/libeatmydata/libeatmydata.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored. The upgrade process should put a link in the old location and remove it only if LD_PRELOAD is populated with the new location. Well, this would mean change the content of LD_PRELOAD of a running process (apt and children), not something wise to do. Actually the content of LD_PRELOAD is changed once you restart apt, not before. I could drop a symlink, but when I'm going to remove it? I can't think of anything sane to do here. A better thing to do wuold be change the eatmydata script in wheezy to do something more clever (e.g. by using the script currently in experimental) so even the libeatmydata library path change in the middle of the upgrade ld would know where to find it. Either way, I'd be for just ignore the warning and go ahead. I'll think it better, but currently I'm overload. -- regards, Mattia Rizzolo GPG Key: 4096R/B9444540 http://goo.gl/I8TMB more about me: http://mapreri.org Launchpad User: https://launchpad.net/~mapreri Ubuntu Wiki page: https://wiki.ubuntu.com/MattiaRizzolo signature.asc Description: GooPG digital signature
Bug#765572: Please provide a better upgrade process
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Hi, Am Mo den 24. Nov 2014 um 14:03 schrieb Mattia Rizzolo: On Thu, Oct 16, 2014 at 12:35 PM, Klaus Ethgen kl...@ethgen.de wrote: The new eatmydata put the .so file to another location so while upgrading the system, there will be many of the following error messages when apt is run with eatmydata: I feel you are doing something really wrong in using apt with eatmydata. I hope you will not blame someone different to yourself if some bad things occur to your system. Well, I would like to do it without eatmydata. Unfortunately is apt (or dpkg) does a to aggressive sync orgy. In my setup (not to slow disks but no SSD) a a bit bigger upgrade takes far over 30 minutes where it take only 1 or 2 minutes with eatmydata. The risk that something goes wrong in 30 minutes is much higher than in 1 minute. I also like more the kernel to know about what should be written to disk. I read somewhere about an idea to have a command line switch to apt and/or dpkg to not sync that aggressive while an upgrade. That would be a real good idea. Finally, what do you think, eatmydata was originally the reason for? It was exactly the complete crazy sync orgies in apt. (That is what I heard about.) ERROR: ld.so: object '/usr/lib/libeatmydata/libeatmydata.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored. The upgrade process should put a link in the old location and remove it only if LD_PRELOAD is populated with the new location. Well, this would mean change the content of LD_PRELOAD of a running process (apt and children), not something wise to do. Actually the content of LD_PRELOAD is changed once you restart apt, not before. I could drop a symlink, but when I'm going to remove it? I can't think of anything sane to do here. Well, doesn't matter if the content changes as the process will have the old (now deleted) file still opened. The problem are new spawned processes who cannot find the libraries in LD_PRELOAD. A symlink is great here. It is even easy to check if that path is still in LD_PRELOAD. If not, that can be deleted safely. Either way, I'd be for just ignore the warning and go ahead. I'll think it better, but currently I'm overload. That might be ok for me too. It is only scarring first seeing that error. Regards Klaus - -- Klaus Ethgen http://www.ethgen.ch/ pub 4096R/4E20AF1C 2011-05-16 Klaus Ethgen kl...@ethgen.de Fingerprint: 85D4 CA42 952C 949B 1753 62B3 79D0 B06F 4E20 AF1C -BEGIN PGP SIGNATURE- Version: GnuPG v1 iQGcBAEBCgAGBQJUcz07AAoJEKZ8CrGAGfasxzUL/RDz9nbYaxRHbkevblfzZprG OXQdRNFPqmpZ/dFbxGbOTY2y3NyVNZqo0buLf+oQa57uvb/gd+bjXHEsQY5b3zXb E8/9BZvPvg1P9Sm7ruy/hityugSZtIdJ8fnQsgQJPlqX/PX3O+1RTM1PIjcVFVM9 13163fmVeOKS4F5SZVkjffsa6rmRSkz0Ag1mTWIKnp1MKNvUlW+n7ov0NzRH5/RK OTguTH/Jfsd8lyHIVTWwE165iVBXylP/1rdh91uvDVJ7R0FCcRuvwSZGm/NktGpc BXd2qBBzcSLzxOhP3HEf8XPykGTCVfhssnOghuokFlSJVEzv1fjDvf0k7AR5Lu27 j0w25oNko9aNkml6C+mCdWXriagm+QPIjFEMyTqv0fAcV8LMSgM/9LMDrw7IF6SR KHEzNlLkCV5U8J6GkFRVQsFP3STKbTLOjCMgf96liNW2q0E1vcEgsNq5Zlqfjm5l LMI83o4IoTa3RT6bLh6jWsEqcYF8k/dnihLzBfTBSQ== =5B7l -END PGP SIGNATURE- -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#765572: Please provide a better upgrade process
On Mon, Nov 24, 2014 at 3:14 PM, Klaus Ethgen kl...@ethgen.de wrote: I read somewhere about an idea to have a command line switch to apt and/or dpkg to not sync that aggressive while an upgrade. That would be a real good idea. dpkg --force-unsafe-io added on Thu, 25 Nov 2010 07:10:48 +0100 with the 1.15.8.6 upload. Actually it doesn't remove all the sync calls, but a lot of them for sure. -- regards, Mattia Rizzolo GPG Key: 4096R/B9444540 http://goo.gl/I8TMB more about me: http://mapreri.org Launchpad User: https://launchpad.net/~mapreri Ubuntu Wiki page: https://wiki.ubuntu.com/MattiaRizzolo -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#765572: Please provide a better upgrade process
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Hi, Am Mo den 24. Nov 2014 um 15:27 schrieb Mattia Rizzolo: On Mon, Nov 24, 2014 at 3:14 PM, Klaus Ethgen kl...@ethgen.de wrote: I read somewhere about an idea to have a command line switch to apt and/or dpkg to not sync that aggressive while an upgrade. That would be a real good idea. dpkg --force-unsafe-io added on Thu, 25 Nov 2010 07:10:48 +0100 with the 1.15.8.6 upload. Actually it doesn't remove all the sync calls, but a lot of them for sure. Yes, thanks, that is what I read about. There was somewhere a bit thread about that. I was not aware that it is in the current version. Hopefully there is a comparable config option as I do not think that I can add it for how apt uses dpkg. Regards Klaus - -- Klaus Ethgen http://www.ethgen.ch/ pub 4096R/4E20AF1C 2011-05-16 Klaus Ethgen kl...@ethgen.de Fingerprint: 85D4 CA42 952C 949B 1753 62B3 79D0 B06F 4E20 AF1C -BEGIN PGP SIGNATURE- Version: GnuPG v1 iQGcBAEBCgAGBQJUc0LcAAoJEKZ8CrGAGfasgxIL/0rApSYTp4Kg/+apn/z27fUd CtfYIbPVGSx2irqaAS+AIkpZXJg1gQg4cF53psE9sgCS03PofHPewXFfSSeewqJ9 AEY4Jbe7mBp6z20twLAfxzumwc78nCSDqW554YKmWNzG9fXDjM4wLT9+loSn+rxY jqIafb9B6HmmYWjwiIHr21pclMCTteHawYRu3F8SabxvK7nVl3iPef1ukOawFTYk QwIsnEMGpYUimZeUZ5vqUjHq+flsGB+G4FQZWfY+FC0qb1AYQQ+MqUPBcG5Vuyyr Aa/tyGM9Z77DztlgmS129bgtKdzoj/y2tJ6K4x3BhH6zJ+7wqmRHuXbwxh3/Io6q XIDdBSyvtx2ATuX4cFKYhzREQSzV9tgHku1Y3ezXxWhX5yqnQu1ZsPtddYl2WwDD bVL+daq5j6bIGDe65n3gmNmmHcaEkoxEo6X/z5VbrdUBCFNTgCOZsrSOeFyL3JYa PdHOgq7EfPQXuPRrrbFYeDyjyys+9/coNNa/RnZjJQ== =yTSe -END PGP SIGNATURE- -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#765572: Please provide a better upgrade process
On Mon Nov 24 2014 at 3:38:25 PM Klaus Ethgen kl...@ethgen.de wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Hi, Am Mo den 24. Nov 2014 um 15:27 schrieb Mattia Rizzolo: On Mon, Nov 24, 2014 at 3:14 PM, Klaus Ethgen kl...@ethgen.de wrote: I read somewhere about an idea to have a command line switch to apt and/or dpkg to not sync that aggressive while an upgrade. That would be a real good idea. dpkg --force-unsafe-io added on Thu, 25 Nov 2010 07:10:48 +0100 with the 1.15.8.6 upload. Actually it doesn't remove all the sync calls, but a lot of them for sure. Yes, thanks, that is what I read about. There was somewhere a bit thread about that. I was not aware that it is in the current version. Hopefully there is a comparable config option as I do not think that I can add it for how apt uses dpkg. the option: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=584254#67 The bug I was talking about: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=613428
Bug#765572: Please provide a better upgrade process
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Package: eatmydata Version: 82-2 Severity: normal The new eatmydata put the .so file to another location so while upgrading the system, there will be many of the following error messages when apt is run with eatmydata: ERROR: ld.so: object '/usr/lib/libeatmydata/libeatmydata.so' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored. The upgrade process should put a link in the old location and remove it only if LD_PRELOAD is populated with the new location. - -- System Information: Debian Release: jessie/sid APT prefers unstable APT policy: (800, 'unstable'), (110, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 3.15.10 (SMP w/8 CPU cores) Locale: LANG=de_DE, LC_CTYPE=de_DE (charmap=ISO-8859-1) (ignored: LC_ALL set to de_DE) Shell: /bin/sh linked to /bin/dash Versions of packages eatmydata depends on: ii libc6 2.19-11 eatmydata recommends no packages. eatmydata suggests no packages. - -- no debconf information - -- Klaus Ethgen http://www.ethgen.ch/ pub 4096R/4E20AF1C 2011-05-16 Klaus Ethgen kl...@ethgen.de Fingerprint: 85D4 CA42 952C 949B 1753 62B3 79D0 B06F 4E20 AF1C -BEGIN PGP SIGNATURE- Version: GnuPG v1 iQGcBAEBCgAGBQJUP59nAAoJEKZ8CrGAGfasT5EL/0cuAah8dcklInthJGAkDp0D nCOLhKoG8l1U8l86Ga3FM8UMY3SGaUTkiHk2z8wVnA6u3CcsoFY3anlPPihDTmNt 1esDjFRHoMBbKfy76mgfZZyQZetIbT7rDKJo//xRoEzNRc+hiyja8WeMo2IRbilX gW6J7XOKynAs4XXdt49SHYDPLOfG3rC2Apku6YSHLa3b0atOEua2Sj1qbXIgrcwp aiz3YF3BwISEcGZT1pH7l1Z52ESNCr62FPNiq0XbL3CaCrowedkyMU6rQIa20nyd Cm8A6/J5yP/1FxxzMPdbXv/EQPE2/vXR4Q6WUEmsGJy2efXTkOMg37XaMpAWPZkq 1TfT110Tkfvx+CgmnOf/lJntcT///cFjKEqBsBmM4JgzNcQeLxcaJA0MXOGITTex duQUi+n304f9CxwUrxskddThAQ+VvOpcqad2s5LumD+JbXHEaajaq4bnQwMW4AgQ hp8prLBErPb3hPnL2pWmqulIJpqin+6xWPzYyaa96Q== =jbIN -END PGP SIGNATURE- -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
