[sqlite] [Sqlite3] segfault in sqlite3_step()
You give no indication of the schema you are using or the statement that went
wrong.
If you can reproduce the error using the sqlite3 shell, then it is probably
within sqlite3. If not, then it is most probably your own program which is
causing the fault, maybe by passing incorrect (stale or dangling) pointers to
the prepare, bind or step interfaces.
-Original Message-
From: sqlite-users-bounces at mailinglists.sqlite.org
[mailto:sqlite-users-boun...@mailinglists.sqlite.org] On Behalf Of ???
Sent: Dienstag, 01. Dezember 2015 01:29
To: sqlite-users at mailinglists.sqlite.org
Subject: [sqlite] [Sqlite3] segfault in sqlite3_step()
hi.
My program received signal SIGSEGV during performed to sqlite_step().
It was occurs only one time still.. but I should know cause. so I need help
you. please.
*Code:*
*// Already prepared statement using sqlite3_prepare_v2(db, QUERY, -1, ,
NULL).*
*{*
*sqlite3 *db;*
*sqlite3_stmt *stmt;*
*...*
*RETRY:*
* sqlite3_reset(stmt);*
* sqlite3_bind_int(stmt, 1, dir);*
* while((ret = sqlite3_step(stmt)) == SQLITE_ROW)*
* {*
* id = sqlite3_column_int(stmt, 0);*
* name = (char*)sqlite3_column_text(stmt, 1);*
* ...*
* }*
* if(ret == SQLITE_BUSY)*
* {*
* msleep(50);*
* goto RETRY;*
* }*
* else if( ret != SQLITE_DONE)*
* {*
* sqlite3_errcode(db);*
* goto ERROR;*
* }*
* sqlite3_reset(stmt);*
* return SUCCESS;*
*ERROR:*
* sqlite3_reset(stmt);*
* return FAILURE;*
*}*
It was debugging result..
line "while((ret = sqlite3_step(stmt)) == SQLITE_ROW)"
and sqlite3 library debugging result..
$ addr2line -e libsqlite3.so.0 0x5b81a
./sqlite3.c:64118
line " while( (rc = sqlite3Step(v))==SQLITE_SCHEMA
&& cnt++ < SQLITE_MAX_SCHEMA_RETRY
&& (rc2 = rc = sqlite3Reprepare(v))==SQLITE_OK )"
sqlite3 version is 3.7.13.
I think perhaps..
By some reason was error code returns in sqlite3_step()
and then sqlite3_reset() is returning an invalid pointer.
But I don't know why received signal SIGSEGV.
In any case I want to know what occurs segfault in sqlite3_step().
help me, please.
thank you.
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[sqlite] [Sqlite3] segfault in sqlite3_step()
hi.
My program received signal SIGSEGV during performed to sqlite_step().
It was occurs only one time still.. but I should know cause. so I need help
you. please.
*Code:*
*// Already prepared statement using sqlite3_prepare_v2(db, QUERY, -1,
, NULL).*
*{*
*sqlite3 *db;*
*sqlite3_stmt *stmt;*
*...*
*RETRY:*
* sqlite3_reset(stmt);*
* sqlite3_bind_int(stmt, 1, dir);*
* while((ret = sqlite3_step(stmt)) == SQLITE_ROW)*
* {*
* id = sqlite3_column_int(stmt, 0);*
* name = (char*)sqlite3_column_text(stmt, 1);*
* ...*
* }*
* if(ret == SQLITE_BUSY)*
* {*
* msleep(50);*
* goto RETRY;*
* }*
* else if( ret != SQLITE_DONE)*
* {*
* sqlite3_errcode(db);*
* goto ERROR;*
* }*
* sqlite3_reset(stmt);*
* return SUCCESS;*
*ERROR:*
* sqlite3_reset(stmt);*
* return FAILURE;*
*}*
It was debugging result..
line "while((ret = sqlite3_step(stmt)) == SQLITE_ROW)"
and sqlite3 library debugging result..
$ addr2line -e libsqlite3.so.0 0x5b81a
./sqlite3.c:64118
line " while( (rc = sqlite3Step(v))==SQLITE_SCHEMA
&& cnt++ < SQLITE_MAX_SCHEMA_RETRY
&& (rc2 = rc = sqlite3Reprepare(v))==SQLITE_OK )"
sqlite3 version is 3.7.13.
I think perhaps..
By some reason was error code returns in sqlite3_step()
and then sqlite3_reset() is returning an invalid pointer.
But I don't know why received signal SIGSEGV.
In any case I want to know what occurs segfault in sqlite3_step().
help me, please.
thank you.
[sqlite] [Sqlite3] segfault in sqlite3_step()
hi.
My program received signal SIGSEGV during performed to sqlite_step().
It was occurs only one time still.. but I should know cause. so I need help
you. please.
*Code:*
*// Already prepared statement using sqlite3_prepare_v2(db, QUERY, -1,
, NULL).*
*{*
*sqlite3 *db;*
*sqlite3_stmt *stmt;*
*...*
*RETRY:*
* sqlite3_reset(stmt);*
* sqlite3_bind_int(stmt, 1, dir);*
* while((ret = sqlite3_step(stmt)) == SQLITE_ROW)*
* {*
* id = sqlite3_column_int(stmt, 0);*
* name = (char*)sqlite3_column_text(stmt, 1);*
* ...*
* found++;*
* }*
* if(ret == SQLITE_BUSY && !found)*
* {*
* msleep(50);*
* goto RETRY;*
* }*
* else if( ret != SQLITE_DONE && ret != SQLITE_ROW)*
* {*
* sqlite3_errcode(db);*
* goto ERROR;*
* }*
* sqlite3_reset(stmt);*
* return SUCCESS;*
*ERROR:*
* sqlite3_reset(stmt);*
* return FAILURE;*
*}*
It was debugging result..
line "while((ret = sqlite3_step(stmt)) == SQLITE_ROW)"
and sqlite3 library debugging result..
$ addr2line -e libsqlite3.so.0 0x5b81a
./sqlite3.c:64118
line " while( (rc = sqlite3Step(v))==SQLITE_SCHEMA
&& cnt++ < SQLITE_MAX_SCHEMA_RETRY
&& (rc2 = rc = sqlite3Reprepare(v))==SQLITE_OK )"
sqlite3 version is 3.7.13.
I think perhaps..
By some reason was error code returns in sqlite3_step()
and then sqlite3_reset() is returning an invalid pointer.
But I don't know why received signal SIGSEGV.
In any case I want to know what occurs segfault in sqlite3_step().
help me, please.
thank you.
[sqlite] [Sqlite3] segfault in sqlite3_step()
On 11/25/2015 4:26 AM, ??? wrote: > My program received signal SIGSEGV during performed to sqlite_step(). The most likely cause is, your application corrupts the heap elsewhere (possibly much earlier and in a seemingly unrelated part), and sqlite_step just happens to be the first to hit the corrupted data structures when it tries to allocate memory. Heap corruption is nasty this way. -- Igor Tandetnik
