Re: [sqlite] Bug in sqlite3.c
I tried "INSERT INTO ft(ft) VALUES('integrity-check')" and it also did not
give any error. But the rebuild command helped solve my problem as the
crashes stopped, otherwise my application was crashing at every commit
operation (thanks a lot for that).
Is there any command/API which can bypass FTS5 when the db itself has been
instructed to use the FTS5 extension ?
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Re: [sqlite] Bug in sqlite3.c
On 4/6/62 12:11, bhandari_nikhil wrote:
Thanks Dan. I had checked the database integrity using the following command:
sqlite3 myfile.db "PRAGMA integrity_check;"
Try "INSERT INTO ft(ft) VALUES('integrity-check')", where "ft" is the
name of the fts5 table.
And it had reported ok. I will see if I can share the database file here.
Can you let me know how to check the db file (in case I am not able to share
the db file here) ? And how the fts5 can get corrupted ?
The easiest explanation is that the fts5 tables were modified directly,
bypassing fts5. Or there could be a bug in fts5 - a bug that may or may not
still be present; there have been fixes since 3.14. A memory related bug in the
application could also cause this.
To run the rebuild command, the ft refers to the db name ?
The fts5 table name.
Dan.
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Re: [sqlite] Bug in sqlite3.c
Thanks Dan. I had checked the database integrity using the following command: sqlite3 myfile.db "PRAGMA integrity_check;" And it had reported ok. I will see if I can share the database file here. Can you let me know how to check the db file (in case I am not able to share the db file here) ? And how the fts5 can get corrupted ? To run the rebuild command, the ft refers to the db name ? BTW, I just looked at the code, not used the latest version. -- Sent from: http://sqlite.1065341.n5.nabble.com/ ___ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Bug in sqlite3.c
On 3/6/62 12:51, bhandari_nikhil wrote: I am facing a crash in sqlite3fts5BufferAppendBlob. Following is the backtrace: #0 sqlite3Fts5BufferAppendBlob (pRc=pRc@entry=0xf54139c8, pBuf=pBuf@entry=0xf5afeb90, nData=4294967295, pData=0xf49fff76 "90246ture") at sqlite3.c:180474 #1 0xf717b6f8 in fts5WriteAppendTerm (p=p@entry=0xf54139a8, pWriter=pWriter@entry=0xf5afeb84, nTerm=5, pTerm=0xf49fff70 "06280290246ture") at sqlite3.c:188868 #2 0xf717bf29 in fts5IndexMergeLevel (p=p@entry=0xf54139a8, ppStruct=ppStruct@entry=0xf5afec3c, iLvl=3, pnRem=0xf5afec38) at sqlite3.c:189176 There is an apparent bug in sqlite3fts5BufferAppendBlob where it is asserting for check on nData < 0 but nData is actually u32. The nData should be int, not u32. I am using version 3.14.0.100 but the bug is present in the latest version as well. Also, if you notice in frame #0, the nData passed is 0x which is -1. It was calculated to be -1 in frame #1 where it did nTerm - nPrefix. The nPrefix value came out to be 6 and nTerm was 5. I want to know when this nPrefix becomes > nTerm ? Thanks for reporting this. I think that can only happen if the FTS5 records stored in the database are corrupt. If you are able to share the database I can check for you. You can probably repair the index using the following: https://sqlite.org/fts5.html#the_rebuild_command Also, I would have thought this crash would have been fixed by this change, which is in 3.28.0: https://sqlite.org/src/info/673a7dd698 Have you demonstrated the crash with the latest version, or just eyeballed the code? Cheers then, Dan. Regards Nikhil Bhandari -- Sent from: http://sqlite.1065341.n5.nabble.com/ ___ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users ___ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
[sqlite] Bug in sqlite3.c
I am facing a crash in sqlite3fts5BufferAppendBlob. Following is the backtrace: #0 sqlite3Fts5BufferAppendBlob (pRc=pRc@entry=0xf54139c8, pBuf=pBuf@entry=0xf5afeb90, nData=4294967295, pData=0xf49fff76 "90246ture") at sqlite3.c:180474 #1 0xf717b6f8 in fts5WriteAppendTerm (p=p@entry=0xf54139a8, pWriter=pWriter@entry=0xf5afeb84, nTerm=5, pTerm=0xf49fff70 "06280290246ture") at sqlite3.c:188868 #2 0xf717bf29 in fts5IndexMergeLevel (p=p@entry=0xf54139a8, ppStruct=ppStruct@entry=0xf5afec3c, iLvl=3, pnRem=0xf5afec38) at sqlite3.c:189176 There is an apparent bug in sqlite3fts5BufferAppendBlob where it is asserting for check on nData < 0 but nData is actually u32. The nData should be int, not u32. I am using version 3.14.0.100 but the bug is present in the latest version as well. Also, if you notice in frame #0, the nData passed is 0x which is -1. It was calculated to be -1 in frame #1 where it did nTerm - nPrefix. The nPrefix value came out to be 6 and nTerm was 5. I want to know when this nPrefix becomes > nTerm ? Regards Nikhil Bhandari -- Sent from: http://sqlite.1065341.n5.nabble.com/ ___ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
