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Bugcheсk 300 (can't find shared latch) [CORE3034] #3415

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firebird-issue-importer opened this issue Jun 8, 2010 · 10 comments
Closed

Bugcheсk 300 (can't find shared latch) [CORE3034] #3415

firebird-issue-importer opened this issue Jun 8, 2010 · 10 comments

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@firebird-issue-importer
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@firebird-issue-importer firebird-issue-importer commented Jun 8, 2010

Submitted by: @hvlad

Is related to CORE1257
Relate to CORE4004

When some request while inserting key into expression index is cancelled (due to database shutdown or by user request) it could lead to bugcheck 300.

The reason is that IDX_store() holds lock for IRT page when calls BTR_key() and call chain could contain JRD_reschedule() which will throw exception and call CCH_unwind() if attachment (or transaction) was cancelled.
CCH_unwind() will release all page locks and latches and when IDX_store() will try to release IRT page it will trigger bugcheck 300 in CCH\release_bdb().

The sample call stack when JRD_reschedule() is called :

> fb_inet_server.exe!JRD_reschedule(Jrd::thread_db * tdbb=0x0331f510, long quantum=0, bool punt=true) Line 4070 C++
fb_inet_server.exe!EVL_expr(Jrd::thread_db * tdbb=0x0331f510, Jrd::jrd_nod * const node=0x0419c468) Line 824 + 0xd bytes C++
fb_inet_server.exe!BTR_eval_expression(Jrd::thread_db * tdbb=0x0331f510, Jrd::index_desc * idx=0x0331dc80, Jrd::Record * record=0x041c30f8, bool & notNull=true) Line 526 + 0x10 bytes C++
fb_inet_server.exe!BTR_key(Jrd::thread_db * tdbb=0x0331f510, Jrd::jrd_rel * relation=0x04062110, Jrd::Record * record=0x041c30f8, Jrd::index_desc * idx=0x0331dc80, Jrd::temporary_key * key=0x0331dd3c, Jrd::idx_null_state * null_state=0x00000000, const bool fuzzy=false) Line 1212 + 0x18 bytes C++
fb_inet_server.exe!IDX_store(Jrd::thread_db * tdbb=0x0331f510, Jrd::record_param * rpb=0x040dc390, Jrd::jrd_tra * transaction=0x040c5fcc, Jrd::jrd_rel * * bad_relation=0x0331ed84, unsigned short * bad_index=0x0331ed90) Line 986 + 0x29 bytes C++

The main bug is that JRD_reschedule() should not be called if thread holds any LM's lock ! So, bug exists al long as expression indices was enabled.

Commits: 7012311 543b507 f0a965e 8783fe1

====== Test Details ======

Could not reproduce on 2.1.3 Classic (and could not find 2.5 Alpha 1, 2.5 Beta 1, 2.5 Beta 2, 2.5 RC1, 2.5 RC2 snapshots).

DDL:

SQL> recreate table test(x int, y int, z int);
SQL> create index test_sum on test computed by(x+y-z);
SQL> commit;

Then:

window #⁠1

C:\MIX\firebird\QA\fbt-repo\tmp>C:\MIX\firebird\oldfb213\bin\isql localhost/3213:e21
Database: localhost/3213:e21
SQL> insert into test select rand()*100, rand()*100, rand()*100 from rdb$types,rdb$types,rdb$types;

window #⁠2

gfix -shut full -force 0 localhost/3213:e21

window #⁠1
Statement failed, SQLSTATE = -902
Unable to complete network request to host "localhost".
-Error writing data to the connection.

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@firebird-issue-importer firebird-issue-importer commented Jun 8, 2010

Modified by: @hvlad

assignee: Vlad Khorsun [ hvlad ]

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@firebird-issue-importer firebird-issue-importer commented Jun 10, 2010

Commented by: Kuznetsov Eugene (eugene)

> Affects Versions: 2.5 RC2, 2.5 RC1, 2.5 Beta 2, 2.5 Beta 1, 2.5 Alpha 1
> ....
> So, bug exists al long as expression indices was enabled.

And 2.0.x and 2.1.x are also affected (CORE1257)
Won't it be backported into 2.1.4 ?

Thanks!
--
Best regards, Eugene

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@firebird-issue-importer firebird-issue-importer commented Jun 10, 2010

Modified by: @dyemanov

Link: This issue is related to CORE1257 [ CORE1257 ]

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@firebird-issue-importer firebird-issue-importer commented Jun 10, 2010

Commented by: @hvlad

> Won't it be backported into 2.1.4 ?

Sooner of all - yes. But fix is still not ready.

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@firebird-issue-importer firebird-issue-importer commented Jun 25, 2010

Modified by: @dyemanov

Fix Version: 2.5 RC3 [ 10381 ]

summary: Bugchek 300 (can't find shared latch) => Bugcheсk 300 (can't find shared latch)

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@firebird-issue-importer firebird-issue-importer commented Jul 2, 2010

Modified by: @hvlad

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 2.1.4 [ 10361 ]

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@firebird-issue-importer firebird-issue-importer commented Feb 4, 2011

Modified by: @pcisar

status: Resolved [ 5 ] => Closed [ 6 ]

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@firebird-issue-importer firebird-issue-importer commented Dec 3, 2012

Modified by: @dyemanov

Link: This issue relate to CORE4004 [ CORE4004 ]

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@firebird-issue-importer firebird-issue-importer commented Jan 18, 2016

Modified by: @pavel-zotov

QA Status: No test

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@firebird-issue-importer firebird-issue-importer commented Sep 5, 2016

Modified by: @pavel-zotov

status: Closed [ 6 ] => Closed [ 6 ]

QA Status: No test => Not enough information

Test Details: Could not reproduce on 2.1.3 Classic (and could not find 2.5 Alpha 1, 2.5 Beta 1, 2.5 Beta 2, 2.5 RC1, 2.5 RC2 snapshots).

DDL:

SQL> recreate table test(x int, y int, z int);
SQL> create index test_sum on test computed by(x+y-z);
SQL> commit;

Then:

window #⁠1

C:\MIX\firebird\QA\fbt-repo\tmp>C:\MIX\firebird\oldfb213\bin\isql localhost/3213:e21
Database: localhost/3213:e21
SQL> insert into test select rand()*100, rand()*100, rand()*100 from rdb$types,rdb$types,rdb$types;

window #⁠2

gfix -shut full -force 0 localhost/3213:e21

window #⁠1
Statement failed, SQLSTATE = -902
Unable to complete network request to host "localhost".
-Error writing data to the connection.

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