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Re: (ITS#8988) Undefined Behavior in slapadd
by openldap-technical＠kolttonen.fi 03 Feb '20

03 Feb '20

This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463811718-1330329680-1580755187=:215607 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 8BIT Hello, On Mon, 3 Feb 2020, hyc(a)symas.com wrote: > No. The POSIX spec is *not* a part of the C spec - yet it is still valid. POSIX spec *is* a C standard that exists in addition to the ISO C standard. ISO C defines the so-called "basic language and features" of C if you can call it that. > Which simply proves the point that just because something is not defined > in the C spec does not make it invalid. The compiler guys are idiots for > taking this position. Like Jeff already said, wrongly aligned object access *is* defined by the ISO C specification. It is wrong and explicitly defined as Undefined Behaviour. Invoking UB is playing with fire, and calling compiler writers with offending names does not change that fact at all. Spending long time on comp.lang.c should be mandatory for all C programmers out there. It is shocking to invoke UB and not bother to fix it, instead blaming compiler writers and C standard writers. Best regards, Jokke Hämäläinen ---1463811718-1330329680-1580755187=:215607--

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Re: (ITS#9162) dbMaxSize property does not as expected
by quanah＠symas.com 03 Feb '20

03 Feb '20

--On Monday, February 3, 2020 9:49 AM +0000 pasumarthivijaykumar(a)gmail.com wrote: > Full_Name: Vijay Kumar > Version: 2.4.48 > OS: windows > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (103.204.96.6) Please stop filing ITSes, as you clearly are working with an already broken database. This ITS will be closed. --Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>

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Re: (ITS#8988) Undefined Behavior in slapadd
by hyc＠symas.com 03 Feb '20

03 Feb '20

openldap-technical(a)kolttonen.fi wrote: > This message is in MIME format. The first part should be readable text, > while the remaining parts are likely unreadable without MIME-aware tools. > > ---1463811718-806940296-1580670508=:196090 > Content-Type: text/plain; charset=ISO-8859-15 > Content-Transfer-Encoding: 8BIT > > > Hello, > > On Sat, 8 Jun 2019, hyc(a)symas.com wrote: > >> The gcc/clang folks have their heads up their asses. They've >> deliberately misinterpreted the spec claiming undefined behaviors are >> forbidden, supposedly to enable essential optimizations. Most of which >> only apply to obscure corner cases in compiler benchmark suites, that >> nobody in the real world ever benefits from. > > I realize this thread is very old, but Jeff and the C compiler folks are > right. All C programs that invoke undefined behavior are illegal C > programs and should be fixed. > > Posix threads are well-defined by Posix standards, so calling them > "undefined behaviour" is not a valid argument. No. The POSIX spec is *not* a part of the C spec - yet it is still valid. Which simply proves the point that just because something is not defined in the C spec does not make it invalid. The compiler guys are idiots for taking this position. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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(ITS#9162) dbMaxSize property does not as expected
by pasumarthivijaykumar＠gmail.com 03 Feb '20

03 Feb '20

Full_Name: Vijay Kumar Version: 2.4.48 OS: windows URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (103.204.96.6) if i try to set the value from property, i dont understand from where the value 1406945XXXXXX and getting set. Please check the details mentioned. 1) olcDbMaxSize: 10485760 >mdb_stat.exe -rne "C:\testMaxSize2\mdb\data.mdb" Environment Info Map address: 0000000000000000 Map size: 140694549168128 Page size: 4096 Max pages: 34349255168 Number of pages used: 2 Last transaction ID: 0 Max readers: 126 Number of readers used: 0 Reader Table Status (no active readers) >slapd.exe -T add -F ..\slapd.d -l backupContent.ldif 5e37a371 mdb_db_open: database "o=abc.net" cannot be opened: ⁿ (87). Restore from backup! 5e37a371 backend_startup_one (type=mdb, suffix="o=abc.net"): bi_db_open failed! (87) slap_startup failed 2) olcDbMaxSize: 1048576 >slapd.exe -T add -F ..\slapd.d -l backupContent.ldif 5e37a5ef mdb_db_open: database "o=abc.net" cannot be opened: ⁿ (87). Restore from backup! 5e37a5ef backend_startup_one (type=mdb, suffix="o=abc.net"): bi_db_open failed! (87) slap_startup failed >mdb_stat.exe -rne "C:\testMaxSize2\mdb\data.mdb" Environment Info Map address: 0000000000000000 Map size: 140694539730944 Page size: 4096 Max pages: 34349252864 Number of pages used: 2 Last transaction ID: 0 Max readers: 126 Number of readers used: 0 Reader Table Status (no active readers) 3) olcDbMaxSize: 1024 >slapd.exe -T add -F ..\slapd.d -l backupContent.ldif 5e37a7fd mdb_db_open: database "o=abc.net" cannot be opened: ⁿ (87). Restore from backup! 5e37a7fd backend_startup_one (type=mdb, suffix="o=abc.net"): bi_db_open failed! (87) slap_startup failed >mdb_stat.exe -rne "C:\testMaxSize2\mdb\data.mdb" Environment Info Map address: 0000000000000000 Map size: 140694538683392 Page size: 4096 Max pages: 34349252608 Number of pages used: 2 Last transaction ID: 0 Max readers: 126 Number of readers used: 0 Reader Table Status (no active readers) 5) olcDbMaxSize 10 >slapd.exe -T add -F ..\slapd.d -l backupContent.ldif 5e37a92b mdb_db_open: database "o=abc.net" cannot be opened: ⁿ (87). Restore from backup! 5e37a92b backend_startup_one (type=mdb, suffix="o=abc.net"): bi_db_open failed! (87) slap_startup failed >mdb_stat.exe -rne "C:\testMaxSize2\mdb\data.mdb" Environment Info Map address: 0000000000000000 Map size: 140694538682378 Page size: 4096 Max pages: 34349252608 Number of pages used: 2 Last transaction ID: 0 Max readers: 126 Number of readers used: 0 Reader Table Status (no active readers) 6) olcDbMaxSize 1 >slapd.exe -T add -F ..\slapd.d -l backupContent.ldif 5e37a92b mdb_db_open: database "o=abc.net" cannot be opened: ⁿ (87). Restore from backup! 5e37a92b backend_startup_one (type=mdb, suffix="o=abc.net"): bi_db_open failed! (87) slap_startup failed >mdb_stat.exe -rne "C:\testMaxSize2\mdb\data.mdb" Environment Info Map address: 0000000000000000 Map size: 140694538682369 Page size: 4096 Max pages: 34349252608 Number of pages used: 2 Last transaction ID: 0 Max readers: 126 Number of readers used: 0 Reader Table Status (no active readers) 7) olcDbMaxSize not set >mdb_stat.exe -rne "C:\testMaxSize2\mdb\data.mdb" Environment Info Map address: 0000000000000000 Map size: 1048576 Page size: 4096 Max pages: 256 Number of pages used: 254 Last transaction ID: 104 Max readers: 126 Number of readers used: 0 Reader Table Status (no active readers)

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Re: (ITS#8988) Undefined Behavior in slapadd
by openldap-technical＠kolttonen.fi 02 Feb '20

02 Feb '20

This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463811718-326687762-1580674674=:196994 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 8BIT On Sun, 2 Feb 2020, openldap-technical(a)kolttonen.fi wrote: > I realize this thread is very old, but Jeff and the C compiler folks are > right. All C programs that invoke undefined behavior are illegal C > programs and should be fixed. > > Posix threads are well-defined by Posix standards, so calling them > "undefined behaviour" is not a valid argument. To make it clear that UB in C programs is horrible, let me provide a real world example of UB: Cyrus IMAPD had an unnoticed dormant strcpy() related UB bug for several years. You see, the manual page of strcpy() says that the src and dst strings must not overlap, or else the C program invokes UB. For many years, Cyrus operated correctly even though the src and dst strings *did* overlap in one part of their database code. UB of course allows this behaviour too. The reason was because GNU libc folks had written their strcpy() implementation in such a way that breaking the contract of having non-overlapping strings did not cause any problems. Then, years later, GNU libc folks deciced to optimize (or otherwise change) their strcpy() implementation. Now the new implementation punished all UB invokers, and we saw our Cyrus mailbox database slowly but surely getting corrupted. It is indeed shocking to hear that LMDB implementation invokes UB. GCC and Clang could change their behaviour tomorrow, and LMDB could get corrupted, crash or whatever. And certainly the blame would be on LMDB code, not the compiler writers. Best Regards, Jokke Hämäläinen ---1463811718-326687762-1580674674=:196994--

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Re: (ITS#8988) Undefined Behavior in slapadd
by openldap-technical＠kolttonen.fi 02 Feb '20

02 Feb '20

This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---1463811718-806940296-1580670508=:196090 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 8BIT Hello, On Sat, 8 Jun 2019, hyc(a)symas.com wrote: > The gcc/clang folks have their heads up their asses. They've > deliberately misinterpreted the spec claiming undefined behaviors are > forbidden, supposedly to enable essential optimizations. Most of which > only apply to obscure corner cases in compiler benchmark suites, that > nobody in the real world ever benefits from. I realize this thread is very old, but Jeff and the C compiler folks are right. All C programs that invoke undefined behavior are illegal C programs and should be fixed. Posix threads are well-defined by Posix standards, so calling them "undefined behaviour" is not a valid argument. Best regards, Jokke Hämäläinen ---1463811718-806940296-1580670508=:196090--

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Re: (ITS#9161) Codespell report for "OpenLDAP" (on fossies.org)
by quanah＠symas.com 30 Jan '20

30 Jan '20

--On Thursday, January 30, 2020 8:48 PM +0000 Jens.Schleusener(a)fossies.org wrote: > Full_Name: Jens Schleusener > Version: 2.4.49 > OS: (irrelevant) > URL: https://fossies.org/linux/misc/openldap/codespell.html > Submission from: (NULL) (2003:cf:71a:5655:2905:9b7a:fef1:ab74) > > > The FOSS server fossies.org - also supporting "OpenLDAP" - offers a new > feature "Source code misspelling reports": This is very nice, thank you. Definitely some items in here that need fixing. Regards, Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>

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(ITS#9161) Codespell report for "OpenLDAP" (on fossies.org)
by Jens.Schleusener＠fossies.org 30 Jan '20

30 Jan '20

Full_Name: Jens Schleusener Version: 2.4.49 OS: (irrelevant) URL: https://fossies.org/linux/misc/openldap/codespell.html Submission from: (NULL) (2003:cf:71a:5655:2905:9b7a:fef1:ab74) The FOSS server fossies.org - also supporting "OpenLDAP" - offers a new feature "Source code misspelling reports": https://fossies.org/features.html#codespell Such reports are normally only generated on request, but as Fossies administrator I have just created (for testing purposes) an analysis for the new "OpenLDAP" release 2.4.49: https://fossies.org/linux/misc/openldap/codespell.html That version-independent (not linked) URL should redirect always to the last report (if available), so currently to https://fossies.org/linux/misc/openldap-2.4.49.tgz/codespell.html Although after a first review some obviously wrong matches ("false positives") are already filtered out (ignored) please inform me if you find more of them so that I can force a new improved check if applicable. Just for information there are also two supplemental pages https://fossies.org/linux/misc/openldap/codespell_conf.html showing some used "codespell" configurations and https://fossies.org/linux/misc/openldap/codespell_fps.html showing all resulting obvious "false positives". If appropriate, additional reports for the current or also future development versions (these in a special "test" folder) could be willingly created.

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Re: (ITS#9159) mdb_put failed: MDB_MAP_FULL: Environment mapsize limit reached(-30792)
by quanah＠symas.com 30 Jan '20

30 Jan '20

--On Thursday, January 30, 2020 2:38 PM +0530 Vijay Kumar <pasumarthivijaykumar(a)gmail.com> wrote: > > > Thank you Quanah, > > I am not familiar about your process of subscribing to lists. > I have gone though the documentation to understand the mdb size for > windows. Can you please share me the documentation you might referring? The information on the mailing lists and how to subscribe is directly accessible from the main page for the OpenLDAP project: <https://www.openldap.org/> Click on the link that says "Mailing lists" Click on the link that says "OpenLDAP-technical" to get to: <https://www.openldap.org/lists/mm/listinfo/openldap-technical> The man page for slapd-mdb(5) has all of the documentation: <https://www.openldap.org/software/man.cgi?query=slapd-mdb&apropos=0&sektion…> Again, the default MAXIMUM size for an MDB database is 10MB if the maxsize parameter is not set. You *must* set this value to something larger. Regards, Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>

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Re: (ITS#9159) mdb_put failed: MDB_MAP_FULL: Environment mapsize limit reached(-30792)
by pasumarthivijaykumar＠gmail.com 30 Jan '20

30 Jan '20

--0000000000008f08ba059d57cdcc Content-Type: text/plain; charset="UTF-8" Thank you Quanah, I am not familiar about your process of subscribing to lists. I have gone though the documentation to understand the mdb size for windows. Can you please share me the documentation you might referring? Thank you. Regards, Vijay Kumar On Thu, Jan 30, 2020 at 12:46 PM Quanah Gibson-Mount <quanah(a)symas.com> wrote: > > > --On Thursday, January 30, 2020 6:09 AM +0000 > pasumarthivijaykumar(a)gmail.com wrote: > > > --00000000000025b743059d554b79 > > Content-Type: text/plain; charset="UTF-8" > > Content-Transfer-Encoding: quoted-printable > > > > Thanks for your reply I do know that info for windows also is it the > > same.? I am unable to use stats tool also. > > As I already stated, the maxsize parameter specifies the maximum size the > database can reach. > > > As I don=E2=80=99t see any reply from our many mails to > > openldap-technical(a)openldap.org I have created this case to clarify. > > > The openldap-technical list is only open to subscribers, if you want to > post to it you must subscribe first. > > > > Why don=E2=80=99t you forward the query to the concerned team instead > > closi= ng. > > Your query would not be forwarded because you failed to read and/or > understand the documentation. This system is for bug reports only. > > > No reply to us.! > > I did reply. This is clearly shown in the ITS. > > > Please let us know answer to solve a issue.! > > > I already provided you the answer in my earlier response. Set an > approprate maxsize setting, the default of 10MB is clearly too low. > > Regards, > Quanah > > > -- > > Quanah Gibson-Mount > Product Architect > Symas Corporation > Packaged, certified, and supported LDAP solutions powered by OpenLDAP: > <http://www.symas.com> > -- Thanks & Regards, Vijay Kumar *+91-94944 44009* --0000000000008f08ba059d57cdcc Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div>Thank you Quanah,</div><div><br></div>I am not famili= ar about your process of subscribing to lists.<div>I have gone though the d= ocumentation to understand the mdb size for windows. Can you please share m= e the documentation you might referring?</div><div><br></div><div>Thank you= .</div><div><br></div><div>Regards,</div><div>Vijay Kumar<br><div><br></div= ></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail= _attr">On Thu, Jan 30, 2020 at 12:46 PM Quanah Gibson-Mount <<a href=3D"= mailto:quanah@symas.com">quanah(a)symas.com</a>> wrote:<br></div><blockquo= te class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px = solid rgb(204,204,204);padding-left:1ex"><br> <br> --On Thursday, January 30, 2020 6:09 AM +0000 <br> <a href=3D"mailto:pasumarthivijaykumar@gmail.com" target=3D"_blank">pasumar= thivijaykumar(a)gmail.com</a> wrote:<br> <br> > --00000000000025b743059d554b79<br> > Content-Type: text/plain; charset=3D"UTF-8"<br> > Content-Transfer-Encoding: quoted-printable<br> ><br> > Thanks for your reply I do know that info for windows also is it the<b= r> > same.? I am unable to use stats tool also.<br> <br> As I already stated, the maxsize parameter specifies the maximum size the <= br> database can reach.<br> <br> > As I don=3DE2=3D80=3D99t see any reply from our many mails to<br> > <a href=3D"mailto:openldap-technical@openldap.org" target=3D"_blank">o= penldap-technical(a)openldap.org</a> I have created this case to clarify.<br> <br> <br> The openldap-technical list is only open to subscribers, if you want to <br= > post to it you must subscribe first.<br> <br> <br> > Why don=3DE2=3D80=3D99t you forward the query to the concerned team in= stead<br> > closi=3D ng.<br> <br> Your query would not be forwarded because you failed to read and/or <br> understand the documentation.=C2=A0 This system is for bug reports only.<br= > <br> > No reply to us.!<br> <br> I did reply.=C2=A0 This is clearly shown in the ITS.<br> <br> > Please let us know answer to solve a issue.!<br> <br> <br> I already provided you the answer in my earlier response.=C2=A0 Set an <br> approprate maxsize setting, the default of 10MB is clearly too low.<br> <br> Regards,<br> Quanah<br> <br> <br> --<br> <br> Quanah Gibson-Mount<br> Product Architect<br> Symas Corporation<br> Packaged, certified, and supported LDAP solutions powered by OpenLDAP:<br> <<a href=3D"http://www.symas.com" rel=3D"noreferrer" target=3D"_blank">h= ttp://www.symas.com</a>><br> </blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr"= class=3D"gmail_signature"><div dir=3D"ltr"><div><div><font color=3D"#00006= 6">Thanks & Regards,</font></div> <div>=C2=A0</div> <div><font face=3D"arial black,sans-serif">Vijay Kumar</font></div> <div><strong>+91-94944 44009</strong></div></div></div></div> --0000000000008f08ba059d57cdcc--

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