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August 21, 2017 at 22:54 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #12124Ophidian14Participant
Hello,
Thank you so much for posting this. I am continuing my testing but so far everything looks good. No crashes yet. Fingers crossed!
August 17, 2017 at 16:58 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #12097Ophidian14ParticipantI reduced my project to just one ClCompile entry containing the problematic file: crashed. Also replaced this file with a preprocessed version of itself (using the -E argument to clang++) — still crashed. In both cases, WinDbg reliably reports:
ID: [0n261] Type: [STACK_BUFFER_OVERRUN] Class: Addendum Scope: BUCKET_ID Name: Add Data: Omit PID: [Unspecified] TID: [0x3e70] Frame: [0] : CppEngineCore64!DumpSharedPCHIndex BUGCHECK_STR: APPLICATION_FAULT_STACK_BUFFER_OVERRUN_NOSOS_FTH_ACTIVE_BOGUSADDRESS_XMULTI_MISSING_GSFRAME DEFAULT_BUCKET_ID: STACK_BUFFER_OVERRUN_NOSOS_FTH_ACTIVE_BOGUSADDRESS_XMULTI_MISSING_GSFRAME ERROR_CODE: (NTSTATUS) 0xc0000409 - The system detected an overrun of a stack-based buffer in this application. This overrun could potentially allow a malicious user to gain control of this application.
Is any of this meaningful?
Meant to add: in all cases I deleted CodeDB, the .db file, etc.
- This reply was modified 7 years, 4 months ago by Ophidian14.
August 17, 2017 at 03:17 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #12090Ophidian14ParticipantHere’s what I can tell you as of right now:
- I don’t often use “go to definition” or “find all references”. It repro’s without using either of those.
- I haven’t tried making a solution with just those files yet.
- Before preview 5, I saw the crash about one second after opening the problematic file. In preview 5, I didn’t see it after the opening file, but after triggering an AutoComplete with “.” or “->”, all the suggestions would be nonsense (things like #defines, namespace aliases, and enum’s would just randomly appear). Then a few seconds after that, it would crash.
- I just downloaded preview 6 (build 1724) which was just released a few hours ago. Crash still occurs *but* typing “this->” doesn’t trigger it any more, I have to trigger off of function scoped variables. I will upload another mini dump just in case it helps.
- This reply was modified 7 years, 4 months ago by Ophidian14.
August 16, 2017 at 19:36 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #12066Ophidian14ParticipantAlso before the Intellisense engine crashed, all the popup suggestions were bogus, it looked like a raw dump of every symbol it knew (some namespace aliases we have set up, like “A”, “AA”, “AB”, “AC”, etc.)
August 16, 2017 at 19:26 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #12065Ophidian14ParticipantI submitted a minidump per the “normal” process if that helps.
August 16, 2017 at 19:24 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #12064Ophidian14ParticipantWhich I think is what happened, I accidentally downgraded to 5.2r9, thus I didn’t see the issue any more (or the option to go 64-bit). It’s definitely still present in 5.3.
August 16, 2017 at 19:22 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #12063Ophidian14ParticipantSorry to spam the forum but I realized the “Download” link on the main page gives you 5.2r9 (which doesn’t seem to have the crash) and 5.3 preview 5 comes from the “try it now link”.
August 16, 2017 at 19:09 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #12062Ophidian14ParticipantNo!! The crash remains on both the 32-bit and 64-bit versions!! I had to type an arrow-> operator to get it to happen, but it’s there.
August 16, 2017 at 19:03 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #12061Ophidian14ParticipantAlso amidst all of this I deleted my AppData VisualGDB folder contents, if that matters.
August 16, 2017 at 19:02 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #12060Ophidian14ParticipantOkay, hold on a second here. I had to recreate my project file (for other reasons), and realized I was back on the 32-bit CppEngineHost. I went back to turn it back on, and the setting you mentioned (in C++ Text Editor -> Other) was no longer visible?
Then I downloaded build 1716 from the link you gave that other guy, and now the setting is back again *and* it’s enabled??
Also when I downloaded the “official” Preview 5 it said “5.2 r9”, is that right?
The crash is still gone though, luckily, in the 64 bit version (FWIW).
August 15, 2017 at 17:14 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #12035Ophidian14ParticipantI am using Preview 5 and the crash seems to be gone. Also, the performance seems faster as well.
July 27, 2017 at 15:02 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #11849Ophidian14ParticipantI’m trying. I’m almost certain it has to do with our usage of boost::variant (and boost::make_recursive_variant), and I’ve made several reduced test programs with boost::variant, but they don’t trigger the issue. I’ll keep looking at it.
July 26, 2017 at 20:15 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #11837Ophidian14ParticipantI found a small enough file that the decode will finish with the Debug build. Unfortunately it doesn’t reproduce with the Debug build. I open the file with the Release version of CppEngineHost64.dll and I get the crash window within one second. If I close Visual Studio, swap out to the Debug CppEngineHost64.dll and open that same file, I get about a 3-4 second pause and then the parse completes (I can tell because the syntax highlighting changes in a subtle way, and the Diagnostic window says so).
I got another crash dump that basically says in WinDbg:
BUGCHECK_STR: STACK_BUFFER_OVERRUN_STACK_BUFFER_OVERRUN_NOSOS_MISSING_GSFRAME DEFAULT_BUCKET_ID: STACK_BUFFER_OVERRUN_STACK_BUFFER_OVERRUN_NOSOS_MISSING_GSFRAME PRIMARY_PROBLEM_CLASS: STACK_BUFFER_OVERRUN IP_ON_HEAP: 3a74736f6f62202c The fault address in not in any loaded module, please check your build's rebase log at <releasedir>\bin\build_logs\timebuild\ntrebase.log for module which may contain the address if it were loaded. FRAME_ONE_INVALID: 1 LAST_CONTROL_TRANSFER: from 3a74736f6f62202c to 000007feb9539a54 STACK_TEXT: 00000000
1d2ad010 3a74736f
6f62202c : 3a6c69617465643a 746e6169
7261763a 2c5f64696f763a3a 3a3a7473
6f6f6220 : CppEngineCore64!LookupGlobalName+0x23e24Now, below this is a bunch of hex output that basically looked like ASCII text to me so I decoded it. I got this:
deta il:: boo st:: ::vo'id_, :var'iant vari ant: deta il:: boo'st:: ::vo'id_, :voi d_, vari ant: deta'il:: boo'st:: boos t::d :voi d_, vari'ant: deta'il:: etai l::v boos t::d :voi'd_, vari'ant: aria nt:: etai l::v boos't::d :voi'd_, void _, b aria nt:: etai'l::v boos't::d oost ::de void _, b aria'nt:: etai'l::v tail ::va oost ::de void'_, b aria'nt:: rian t::v tail ::va oost'::de void'_, b oid_ , bo rian t::v tail'::va oost'::de ost: :det oid_ , bo rian't::v tail'::va ail: :var ost: :det oid_', bo rian't::v iant ::vo ail: :var ost:':det oid_', bo id_, boo iant ::vo ail:':var ost:':det st:: deta id_, boo iant'::vo ail:':var il:: vari st:: deta id_,' boo iant'::vo ant: :voi il:: vari st::'deta id_,' boo d_, boos ant: :voi il::'vari st::'deta t::d etai d_, boos ant:':voi il::'vari l::v aria t::d etai d_, 'boos ant:':voi nt:: void l::v aria t::d'etai d_, 'boos _, b oost nt:: void l::v'aria t::d'etai ::de tail _, b oost nt::'void l::v'aria ::va rian ::de tail _, b'oost nt::'void t::v oid_ ::va rian ::de'tail _, b'oost , bo ost: t::v oid_ ::va'rian ::de'tail :det ail: , bo ost: t::v'oid_ ::va'rian :var iant :det ail: , bo'ost: t::v'oid_ ::vo id_> :var iant :det'ail: , bo'ost: >, std: ::vo id_> :var'iant :det'ail: :all ocat >, std: ::vo'id_> :var'iant or<s td:: :all ocat >, 'std: ::vo'id_> pair <std or<s td:: :all'ocat >, 'std: ::st ring pair <std or<s'td:: :all'ocat , bo ost: ::st ring pair'<std or<s'td:: :var iant , bo ost: ::st'ring pair'<std <int , do :var iant , bo'ost: ::st'ring uble , bo <int , do :var'iant , bo'ost: ol, std: uble , bo <int', do :var'iant :str ing, ol, std: uble', bo <int', do boo st:: :str ing, ol, 'std: uble', bo deta il:: boo st:: :str'ing, ol, 'std: vari ant: deta il:: boo'st:: :str'ing, :voi d_, vari ant: deta'il:: boo'st:: boos t::d :voi d_, vari'ant: deta'il:: etai l::v boos t::d :voi'd_, vari'ant: aria nt:: etai l::v boos't::d :voi'd_, void _, b aria nt:: etai'l::v boos't::d oost ::de void _, b aria'nt:: etai'l::v tail ::va oost ::de void'_, b aria'nt:: rian t::v tail ::va oost'::de void'_, b oid_ , bo rian t::v tail'::va oost'::de ost: :det oid_ , bo rian't::v tail'::va ail: :var ost: :det oid_', bo rian't::v iant ::vo ail: :var ost:':det oid_', bo id_, boo iant ::vo ail:':var ost:':det st:: deta id_, boo iant'::vo ail:':var il:: vari st:: deta id_,' boo iant'::vo ant: :voi il:: vari st::'deta id_,' boo d_, boos ant: :voi il::'vari st::'deta t::d etai d_, boos ant:':voi il::'vari l::v aria t::d etai d_, 'boos ant:':voi nt:: void l::v aria t::d'etai d_, 'boos _, b oost nt:: void l::v'aria t::d'etai ::de tail _, b oost nt::'void l::v'aria ::va rian ::de tail _, b'oost nt::'void t::v oid_ ::va rian ::de'tail _, b'oost , bo ost: t::v oid_ ::va'rian ::de'tail :det ail: , bo ost: t::v'oid_ ::va'rian :var iant :det ail: , bo'ost: t::v'oid_ ::vo id_, :var iant :det'ail: , bo'ost: boo st:: ::vo id_, :var'iant :det'ail: deta il:: boo st:: ::vo'id_, :var'iant vari ant: deta il:: boo'st:: ::vo'id_, :voi d_, vari ant: deta'il:: boo'st:: boos t::d :voi d_, vari'ant: deta'il:: etai l::v boos t::d :voi'd_, vari'ant: aria nt:: etai l::v boos't::d :voi'd_, void _, b aria nt:: etai'l::v boos't::d oost ::de void _, b aria'nt:: etai'l::v tail ::va oost ::de void'_, b aria'nt:: rian t::v tail ::va oost'::de void'_, b oid_ , bo rian t::v tail'::va oost'::de ost: :det oid_ , bo rian't::v tail'::va ail: :var ost: :det oid_', bo rian't::v iant ::vo ail: :var ost:':det oid_', bo id_, boo iant ::vo ail:':var ost:':det st:: deta id_, boo iant'::vo ail:':var il:: vari st:: deta id_,' boo iant'::vo ant: :voi il:: vari st::'deta id_,' boo
Any ideas?
July 20, 2017 at 20:42 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #11776Ophidian14ParticipantOkay but did you see my earlier post about how the 5.3 debug build basically just runs forever and never completes. I can’t get any crash dumps from it.
July 19, 2017 at 19:24 in reply to: How do you enable the 64-bit version of CppEngineHost.exe in Preview 2? #11764Ophidian14ParticipantThe problem is that with this build, the performance collapses and I can’t reproduce anything because the parse never finishes. I saw this just now after killing CppEngineHost in Task Manager after I came back from lunch. Any other ideas?
[+1:36:16.708] Operation completed: Reparsing \\10.10.161.129\xxx\yyy\Main.cpp [4912406 msec] [+1:36:16.707] at System.Runtime.Remoting.Channels.SocketHandler.ReadAndMatchFourBytes(Byte[] buffer) [+1:36:16.707] at System.Runtime.Remoting.Channels.Tcp.TcpSocketHandler.ReadAndMatchPreamble() [+1:36:16.707] at System.Runtime.Remoting.Channels.Tcp.TcpSocketHandler.ReadVersionAndOperation(UInt16& operation) [+1:36:16.707] at System.Runtime.Remoting.Channels.Ipc.IpcClientHandler.ReadHeaders() [.....]
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