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In mi_check_index_tuple(), when rowid filter check returns
CHECK_OUT_OF_RANGE, set info->lastpos= HA_OFFSET_ERROR, like
it is done above for the ICP check.
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not needed
Check if we really need the mariadb.sys user
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commit 484931325e7bcecddc6daf1a55c008ddd67497e4 was a necessary
fix for the buffer pool resizing tests in 10.5 in
AddressSanitizer. However, that change would break the tests
innodb.innodb_buffer_pool_resize and
innodb.innodb_buffer_pool_resize_with_chunks
when run in MemorySanitizer, or presumably in Valgrind as well.
(Those tests run "forever" in Valgrind.)
buf_pool_resize(): Cancel the effect of MEM_NOACCESS() in Valgrind
and ASAN. In MSAN, MEM_NOACCESS() is a no-op, and hence we must do
nothing special here.
MEM_MAKE_ADDRESSABLE() would declare the memory contents undefined.
In this particular case, we must actually declare the contents
defined for Valgrind.
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https://github.com/codership/mariadb-server into 10.4-MDEV-22222
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state() == s_prepared || state() == s_must_abort || state() == s_aborting || state() == s_cert_failed || state() == s_must_replay' failed in wsrep::transaction::before_rollback
LOCK TABLE will do implicit commit, we need to properly handle transaction after commit.
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In AddressSanitizer, we only want memory poisoning to happen
in connection with custom memory allocation or freeing.
The primary use of MEM_UNDEFINED is for declaring memory uninitialized
in Valgrind or MemorySanitizer. We do not want MEM_UNDEFINED to
have the unwanted side effect that AddressSanitizer would no longer
be able to complain about accessing unallocated memory.
MEM_UNDEFINED(): Define as no-op for AddressSanitizer.
MEM_MAKE_ADDRESSABLE(): Define as MEM_UNDEFINED() or
ASAN_UNPOISON_MEMORY_REGION().
MEM_CHECK_ADDRESSABLE(): Wrap also __asan_region_is_poisoned().
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- Some of the bug fixes are backports from 10.5!
- The fix in innobase/fil/fil0fil.cc is just a backport to get less
error messages in mysqld.1.err when running with valgrind.
- Renamed HAVE_valgrind_or_MSAN to HAVE_valgrind
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When using field_conv(), which is called in case of field1=field2 copy in
fill_records(), full varstring's was copied, including unitialized bytes.
This caused valgrind to compilain about usage of unitialized bytes when
using Aria static length records.
Fixed by not using memcpy when copying varstrings but instead just copy
the real bytes.
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- Removed not needed bzero in void TABLE::initialize_quick_structures().
- Replaced bzero with TRASH_ALLOC() to have this change verfied with
memory checkers
- Added missing table->quick_keys.is_set in table_cond_selectivity()
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This reverts commit e0793d386517f4ff9c0267830d558f91c75263aa.
In idiomatic C++, accessor functions should not discard qualifiers.
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- service not using "--defaults-file" can have any name not just "MySQL"
- service with "--defaults-file", without datadir in them
use default datadir (install_root\data)
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and remove it on error
Disable existing non-empty datadir for mysql_install_db.exe
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MemorySanitizer (clang -fsanitize=memory) requires that all code
be compiled with instrumentation enabled. The only exception is the
C runtime library. Failure to use instrumented libraries will cause
bogus messages about memory being uninitialized.
In WITH_MSAN builds, we must avoid calling getservbyname(),
because even though it is a standard library function, it is
not instrumented, not even in clang 10.
Note: Before MariaDB Server 10.5, ./mtr will typically fail
due to the old PCRE library, which was updated in MDEV-14024.
The following cmake options were tested on 10.5
in commit 94d0bb4dbeb28a94d1f87fdd55f4297ff3df0157:
cmake \
-DCMAKE_C_FLAGS='-march=native -O2' \
-DCMAKE_CXX_FLAGS='-stdlib=libc++ -march=native -O2' \
-DWITH_EMBEDDED_SERVER=OFF -DWITH_UNIT_TESTS=OFF -DCMAKE_BUILD_TYPE=Debug \
-DWITH_INNODB_{BZIP2,LZ4,LZMA,LZO,SNAPPY}=OFF \
-DPLUGIN_{ARCHIVE,TOKUDB,MROONGA,OQGRAPH,ROCKSDB,CONNECT,SPIDER}=NO \
-DWITH_SAFEMALLOC=OFF \
-DWITH_{ZLIB,SSL,PCRE}=bundled \
-DHAVE_LIBAIO_H=0 \
-DWITH_MSAN=ON
MEM_MAKE_DEFINED(): An alias for VALGRIND_MAKE_MEM_DEFINED()
and __msan_unpoison().
MEM_GET_VBITS(), MEM_SET_VBITS(): Aliases for
VALGRIND_GET_VBITS(), VALGRIND_SET_VBITS(), __msan_copy_shadow().
InnoDB: Replace the UNIV_MEM_ macros with corresponding MEM_ macros.
ut_crc32_8_hw(), ut_crc32_64_low_hw(): Use the compiler built-in
functions instead of inline assembler when building WITH_MSAN.
This will require at least -msse4.2 when building for IA-32 or AMD64.
The inline assembler would not be instrumented, and would thus cause
bogus failures.
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mariabackup tries to allocate a buffer of page_size*page_size/4 size.
for 64k page it means 1Gb, which doesn't work very well on 32-bit builders.
Skip the 64k page test on 32bit.
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instead PROCESS privilege
Fix a typo in a source code. Now real required privileges corresponds
to a ones mentions in documentation.
Documentation states that this table requires PROCESS privilege:
https://mariadb.com/kb/en/information-schema-innodb_tablespaces_encryption-table/
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The issue here was that the left expr and right expr of the ANY subquery
had different character sets, so we were converting the left expr to utf8 character set.
So when this conversion was happening we were actually converting the item inside the cache,
it looked like <cache>(convert(t1.l1 using utf8)), which is incorrect.
To fix this problem we are going to store the reference of the left expr and convert that
to utf8 character set, it would look like convert(<cache>(`test`.`t1`.`l1`) using utf8)
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rpl_parallel_conflicts.test
Problem:
========
Relay_log_info::flush reports following MSAN issue.
==17820==WARNING: MemorySanitizer: use-of-uninitialized-value is reported
#5 0x00005584f0981441 in my_write (Filedes=22,
Buffer=0x72500003e818 "5\n./slave-relay-bin.000003\n21385\n
master-bin.000001\n21643\n0\n", '\245' <repeats 141 times>..., Count=118,
MyFlags=532) at /home/sujatha/bug_repo/test-10.5-msan/mysys/my_write.c:49
Analysis:
=========
In parallel replication at the end of each statement execution the worker execution
status is updated in 'relay-log.info' file. When two workers try to flush
the status at the same time, since the write to cache is not serialized both
workers write to the same address simultaneously and increment the
length twice. Because of this the length of buffer is more than actual data.
When flush code tries to read the buffer beyond valid data length MSAN
reports uninitialized values error.
Fix:
===
Serialize the relay log flush operation using "rli->data_lock".
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https://github.com/codership/mariadb-server into 10.1-MDEV-22763
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Backported the support for aborting and replaying stored procedure and fix for trigger
key assigments from 10.4 version.
Backported also two mtr tests: wsrep_sp_bf_abort and MDEV-20225
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Deadlock in DbugParse, on Linux.
In 10.1, DBUG recursive mutex was improperly implemented.
CODE_STATE::locked counter was never updated.
Copy the code around LockMutex/UnlockMutex from 10.2
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Analysis:
========
When "Profiling" is enabled, server collects the resource usage of each
statement that gets executed in current session. Profiling doesn't support
nested statements. In order to ensure this behavior when profiling is enabled
for a statement, there should not be any other active query which is being
profiled. This active query information is stored in 'current' variable. When
a nested query arrives it finds 'current' being not NULL and server aborts.
When 'init_connect' and 'init_slave' system variables are set they contain a
set of statements to be executed. "execute_init_command" is the function call
which invokes "dispatch_command" for each statement provided in
'init_connect', 'init_slave' system variables. "execute_init_command" invokes
"start_new_query" and it passes the statement list to "dispatch_command". This
"dispatch_command" intern invokes "start_new_query" which leads to nesting of
queries. Hence '!current' assert is triggered.
Fix:
===
Remove profiling from "execute_init_command" as it will be done within
"dispatch_command" execution.
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changes.
This requires Galera commit 065e484144c5999709ae8fd19844da72bb785073
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On FreeBSD, perl isn't in /usr/bin, its in /usr/local/bin or
elsewhere in the path.
Like storage/{maria/unittest/,}ma_test_* , we use /usr/bin/env to
find perl and run it.
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Apparently, in Win10, dtrace is avaialable, but it does not work with
MariaDB user probes
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FreeState() zeros init_settings.out_file, which another thread can be using
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Dynamic_array<st_mysql_const_lex_string*>::at
The code in fill_schema_schemata() did not take into account that
make_db_list() can leave empty db_names if the requested database
name was too long, so the call for db_names.at(0) crashed on assert.
- Moving the code testing if the database directory exists
into a separate function verify_database_directory_exists()
- Modifying the test to check if db_names is not empty
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Problem:
=======
The "Start binlog_dump" message hasn't been updated to include the slave's
requested GTID position:
20:05:05 139836760311552 [Note] Start binlog_dump to slave_server(2), pos(, 4)
For diagnostic purposes, it would be helpful if the GTID position were
included.
Fix:
===
Imporve "Start binlog_dump" print message to include "using_gtid" and
"GTID position" requested by slave.
Ex:
[Note] Start binlog_dump to slave_server(2), pos(, 4), using_gtid(1),
gtid('1-1-201,2-2-100')
[Note] Start binlog_dump to slave_server(3), pos('mariadb-bin.004142',
507988273), using_gtid(0), gtid('')
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Use krb5_xfree if available, otherwise default to
krb5_free_unparsed_name.
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The issue here is for a DEPENDENT subquery that has an aggregate function in the ORDER BY clause,
is wrapped inside an Item_aggregate_ref. For computation of ORDER BY we need to refer to the
temp table field corresponding to this item. But in the function make_sortorder, we were
explicitly casting Item_aggrgate_ref to Item_sum, which leads to us not getting the temp
table field corresponding to the item.
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functions
Window function is not allowed as arguments to window functions according to the standard.
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This function is very common in a debug build. I can even see it in
profiler.
This patch reduces execution time of fil_validate() from
8948ns
8367ns
8650ns
8906ns
8448ns
to
260ns
232ns
403ns
275ns
169ns
in my environment.
The trick is a faster fil_space_t iteration. Hash table
is typically initialized with a size of 50,000. And looping through
it is slow. Slower, than iterating an exact amount of fil_space_t
which is typically less than ten.
Only debug builds are affected.
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