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Attachment might not gone after it was DELETEd FROM MON$ATTACHMENTS [CORE5819] #2190

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firebird-issue-importer opened this issue May 9, 2018 · 3 comments

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@firebird-issue-importer
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firebird-issue-importer commented May 9, 2018

Submitted by: @hvlad

It was reproduced using OLTP-EMUL test with 10 active connections.
Separate isql session issue DELETE FROM MON$ATTACHMENTS statement and not all attachments was finally detached, one was freeze at detach stage.

Stack traces

1. First thread run regular detach, hold blockingMutex and wait for zero at att_purge_tid :

engine12\.dll\!purge\_attachment\(0x0000000010bc14a0, 0x00000000154ef958, 3\) Line 6904	C\+\+
engine12\.dll\!Jrd::JAttachment::freeEngineData\(0x000007fee784ca32, 88\) Line 2935	C\+\+
engine12\.dll\!Firebird::IAttachmentBaseImpl<Jrd::JAttachment,Firebird::CheckStatusWrapper,Firebird::IReferenceCountedImpl<Jrd::JAttachment,Firebird::CheckStatusWrapper,Firebird::Inherit<Firebird::IVersionedImpl<Jrd::JAttachment,Firebird::CheckStatusWrapper,Firebird::Inherit<Firebird::IAttachment\> \> \> \> \>::cloopdetachDispatcher\(0x000000000863adc8, 0x00000000154ef958\) Line 8898	C\+\+
fbclient\.dll\!Why::YAttachment::detach\(0x00000000154ef958\) Line 5460	C\+\+
fbclient\.dll\!Firebird::IAttachmentBaseImpl<Why::YAttachment,Firebird::CheckStatusWrapper,Firebird::IReferenceCountedImpl<Why::YAttachment,Firebird::CheckStatusWrapper,Firebird::Inherit<Firebird::IVersionedImpl<Why::YAttachment,Firebird::CheckStatusWrapper,Firebird::Inherit<Firebird::IAttachment\> \> \> \> \>::cloopdetachDispatcher\(0x000000000e1c3640, 0x000000000de76cc0\) Line 8898	C\+\+
firebird\.exe\!rem\_port::disconnect\(0x000000000de76cc0, 0x000000000de76cc0\) Line 2866	C\+\+
firebird\.exe\!process\_packet\(0x000000000dd8f5c0, 0x000000000dd8f5c0, 0x0000000000000000, 0x0000000000000001\) Line 4568	C\+\+
firebird\.exe\!loopThread\(0x000000000000007a\) Line 5973	C\+\+
firebird\.exe\!threadStart\(0x0000000000000000\) Line 93	C\+\+

2. Second thread run asyncronous detach, set set att_purge_tid, cleanup assotiated EDS::InternalConnection and wait for blockingMutex:

ntdll\.dll\!NtWaitForSingleObject\(\)	Unknown
ntdll\.dll\!RtlpWaitOnCriticalSection\(\)	Unknown
ntdll\.dll\!RtlEnterCriticalSection\(\)	Unknown
engine12\.dll\!\`anonymous namespace'::AttachmentHolder::AttachmentHolder\(0x000007fee5503288, 0x000000000c96f100, 0, 0x000007fee5503288\) Line 675	C\+\+
engine12\.dll\!\`anonymous namespace'::EngineContextHolder::EngineContextHolder<Jrd::JStatement\>\(0x000000001564ecc0, 0x0000000000000000, 0x000000000002c78e, 0\) Line 753	C\+\+
engine12\.dll\!Jrd::JStatement::freeEngineData\(0x000000000b498b08\) Line 4943	C\+\+
engine12\.dll\!EDS::InternalStatement::doClose\(0x0000000000000000, 208\) Line 604	C\+\+
engine12\.dll\!EDS::Statement::deallocate\(0x000000000c96fcf0\) Line 1026	C\+\+
engine12\.dll\!EDS::Statement::deleteStatement\(0x0000000015643f98, 0x0000000000000000\) Line 845	C\+\+
engine12\.dll\!EDS::Connection::clearStatements\(0x0000000015648398\) Line 492	C\+\+
engine12\.dll\!EDS::Connection::detach\(0x0000000015648398\) Line 510	C\+\+
engine12\.dll\!EDS::Connection::deleteConnection\(0x0000000015648398, 0x0000000000000001\) Line 310	C\+\+
engine12\.dll\!EDS::Provider::releaseConnection\(0x0000000000000000, \{\.\.\.\}, 240\) Line 250	C\+\+
engine12\.dll\!EDS::Connection::deleteTransaction\(0x000000000c96fcf0, 0x0000000000000000\) Line 401	C\+\+
engine12\.dll\!EDS::Transaction::rollback\(0x000007fefc6811ac, 88\) Line 707	C\+\+
engine12\.dll\!EDS::Transaction::jrdTransactionEnd\(0x000000000c96fcf0, 0x0000000015642768, false, false, false\) Line 788	C\+\+
engine12\.dll\!TRA\_rollback\(0x000000000c96fcf0, 0x0000000021d43ff0, false, 208\) Line 1319	C\+\+
engine12\.dll\!purge\_transactions\(0x000000001039b140, 0x000000000b498ae0, false\) Line 6850	C\+\+
engine12\.dll\!purge\_attachment\(0x0000000011c23b40, 0x0000000011c23b40, 1\) Line 7024	C\+\+
engine12\.dll\!\`anonymous namespace'::shutdownAttachments\(0x0000000011c23b40, 224\) Line 7379	C\+\+
engine12\.dll\!\`anonymous namespace'::attachmentShutdownThread\(0x0000000011c23b40\) Line 7408	C\+\+
engine12\.dll\!threadStart\(0x0000000000000000\) Line 93	C\+\+

Commits: e8d3881 8c1e31f

@firebird-issue-importer
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firebird-issue-importer commented May 9, 2018

Modified by: @hvlad

assignee: Vlad Khorsun [ hvlad ]

@firebird-issue-importer
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firebird-issue-importer commented May 9, 2018

Modified by: @hvlad

summary: Attachment could not gone after it was DELETE'd FROM MON$ATTACHMENTS => Attachment might not gone after it was DELETEd FROM MON$ATTACHMENTS

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firebird-issue-importer commented May 9, 2018

Modified by: @hvlad

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

resolution: Fixed [ 1 ]

Fix Version: 4.0 Beta 1 [ 10750 ]

Fix Version: 3.0.4 [ 10863 ]

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