<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Jay,<div><br></div><div>I can rapidly diagnose any problems in the code you have been messing with. Let me get a version on the head that "works" (at least for non-Windows) and then we can move on to see what other problems there may be in the WIndows part of the workd.</div><div><br></div><div>-- Tony</div><div><br><div> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; 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font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div><font class="Apple-style-span" color="#0000FF"><font class="Apple-style-span" face="Gill Sans"><span class="Apple-style-span" style="color: rgb(0, 0, 255); font-family: 'Gill Sans'; "><span class="Apple-style-span" style="color: rgb(0, 0, 255); font-family: 'Gill Sans'; ">Antony Hosking</span></span></font></font><font class="Apple-style-span" face="Gill Sans"><span class="Apple-style-span" style="font-family: 'Gill Sans'; "><span class="Apple-style-span" style="font-family: 'Gill Sans'; "><span class="Apple-converted-space"> </span>|<span class="Apple-converted-space"> </span></span></span><span class="Apple-style-span" style="font-family: 'Gill Sans'; "><span class="Apple-style-span" style="font-family: 'Gill Sans'; ">Associate Professor</span></span><span class="Apple-style-span" style="font-family: 'Gill Sans'; "><span class="Apple-style-span" style="font-family: 'Gill Sans'; "> | Computer Science | Purdue University</span></span></font></div><div><font class="Apple-style-span" face="GillSans-Light"><span class="Apple-style-span" style="font-family: GillSans-Light; ">305 N. University Street | West Lafayette | IN 47907 | USA</span></font></div><div><font class="Apple-style-span" color="#0000FF" face="Gill Sans"><span class="Apple-style-span" style="color: rgb(0, 0, 255); font-family: 'Gill Sans'; "><span class="Apple-style-span" style="color: rgb(0, 0, 255); font-family: 'Gill Sans'; ">Office</span></span></font><font class="Apple-style-span" face="GillSans-Light"><span class="Apple-style-span" style="font-family: GillSans-Light; "><span class="Apple-style-span" style="font-family: GillSans-Light; "> +1 765 494 6001 |<span class="Apple-converted-space"> </span></span></span></font><font class="Apple-style-span" color="#0000FF" face="Gill Sans"><span class="Apple-style-span" style="color: rgb(0, 0, 255); font-family: 'Gill Sans'; "><span class="Apple-style-span" style="color: rgb(0, 0, 255); font-family: 'Gill Sans'; ">Mobile</span></span></font><font class="Apple-style-span" face="GillSans-Light"><span class="Apple-style-span" style="font-family: GillSans-Light; "><span class="Apple-style-span" style="font-family: GillSans-Light; "><span class="Apple-converted-space"> </span>+1 765 427 5484</span></span></font></div><div><font class="Apple-style-span" face="GillSans-Light"><br class="khtml-block-placeholder"></font></div></span></span></span></span></span></span></span><br class="Apple-interchange-newline"></span></div></span></div></span><br class="Apple-interchange-newline"> </div><br><div><div>On 4 Sep 2009, at 10:40, Jay K wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div class="hmmessage" style="font-size: 10pt; font-family: Verdana; ">no..still unsolved..not sure if I misobserved or what..will have to backtrack..<br> <br> <br> - Jay<br> <br><hr id="stopSpelling">From:<span class="Apple-converted-space"> </span><a href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</a><br>To:<span class="Apple-converted-space"> </span><a href="mailto:m3devel@elegosoft.com">m3devel@elegosoft.com</a>;<span class="Apple-converted-space"> </span><a href="mailto:hosking@cs.purdue.edu">hosking@cs.purdue.edu</a><br>Subject: RE: [M3devel] Juno on NT (presumably canary for other problems)<br>Date: Fri, 4 Sep 2009 14:07:46 +0000<br><br>(Well, duh, it wasn't ProcessPools(SuspendPool), that just has assertions)<br> <br> - Jay <br><hr id="EC_stopSpelling">From:<span class="Apple-converted-space"> </span><a href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</a><br>To:<span class="Apple-converted-space"> </span><a href="mailto:m3devel@elegosoft.com">m3devel@elegosoft.com</a>;<span class="Apple-converted-space"> </span><a href="mailto:hosking@cs.purdue.edu">hosking@cs.purdue.edu</a><br>Subject: RE: [M3devel] Juno on NT (presumably canary for other problems)<br>Date: Fri, 4 Sep 2009 14:06:08 +0000<br><br>Restoring the:<br> ThreadF.ProcessPools(ClosePool);<br><br>fixes it. I think that was it. One of the ProcessPools uses. I have to retest it anyway -- applying the change to head instead of 2009-02-16 02:00Z.<br> <br> - Jay<br> <br><hr id="EC_EC_stopSpelling">From:<span class="Apple-converted-space"> </span><a href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</a><br>To:<span class="Apple-converted-space"> </span><a href="mailto:m3devel@elegosoft.com">m3devel@elegosoft.com</a>;<span class="Apple-converted-space"> </span><a href="mailto:hosking@cs.purdue.edu">hosking@cs.purdue.edu</a><br>Subject: RE: [M3devel] Juno on NT (presumably canary for other problems)<br>Date: Fri, 4 Sep 2009 11:52:28 +0000<br><br>I have narrowed it way down to between "2009-02-16 02:00Z" and -D "2009-02-16 02:30Z".<br>So please review this change.<br>I have reviewed it and tried to partly undo it, without luck yet.<br>There is a semantic change in BroadcastHeap where the broadcast used to happen upon the next unlock<br>and now I think happens right away. I tried restoring that, but again, no luck for me.<br> <br>Thanks,<br> - Jay<br> <br><hr id="EC_EC_EC_stopSpelling">From:<span class="Apple-converted-space"> </span><a href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</a><br>To:<span class="Apple-converted-space"> </span><a href="mailto:m3devel@elegosoft.com">m3devel@elegosoft.com</a>;<span class="Apple-converted-space"> </span><a href="mailto:hosking@cs.purdue.edu">hosking@cs.purdue.edu</a><br>Subject: RE: [M3devel] Juno on NT (presumably canary for other problems)<br>Date: Fri, 4 Sep 2009 09:12:23 +0000<br><br>I have narrowed it down further to between 2/15/2009 and 2/18/2009.<br>Next I will try old text code in head to see if it is that.<br> <br>Tony, can you double check this stuff:<br> <br>2009-02-16 02:20 hosking<br><br> * m3-libs/m3core/src/: Csupport/VAX/dtoa.c, Csupport/big-endian/dtoa.c,<br> Csupport/little-endian/dtoa.c, convert/CConvert.i3,<br> convert/CConvert.m3, runtime/I386_DARWIN/RTThread.m3,<br> runtime/common/RTCollector.m3, runtime/common/RTHeapRep.i3,<br> runtime/common/RTOS.i3, thread/POSIX/ThreadPosix.m3,<br> thread/PTHREAD/ThreadF.i3, thread/PTHREAD/ThreadPThread.m3,<br> thread/PTHREAD/ThreadPThreadC.c, thread/PTHREAD/ThreadPThreadC.i3,<br> thread/WIN32/ThreadWin32.m3:<br><br> Clean up RTOS.LockHeap/RTOS.UnlockHeap implementations to better match underlying pthread semantics.<br> This means that RTOS.WaitHeap must be called while RTOS.LockHeap is held.<br> RTOS.BroadcastHeap can be called whether RTOS.LockHeap is held or not.<br><br><br>Remember this is on NT so a lot of stuff isn't relevant, e.g. all the signal stuff (not sure how we pause world there, I'll check, I don't think it is actually possible..).<br> <br> <br> - Jay<br><br> <br><hr id="EC_EC_EC_EC_stopSpelling">From:<span class="Apple-converted-space"> </span><a href="mailto:jay.krell@cornell.edu">jay.krell@cornell.edu</a><br>To:<span class="Apple-converted-space"> </span><a href="mailto:m3devel@elegosoft.com">m3devel@elegosoft.com</a><br>Date: Fri, 4 Sep 2009 08:54:54 +0000<br>Subject: [M3devel] Juno on NT (presumably canary for other problems)<br><br>short story:<br><br> <br>I narrowed it down to between 2/15/2009 and 2/20/2009.<br>I will keep digging.<br> <br>There are actually a lot of changes in that brief period.<br>I will narrow it further.<br> <br> <br>long story:<br> <br>Juno on NT, as canary for other problems.<br>Juno on NT has three behaviors.<br> <br> <br>Behavior #1<br> <br> <br>The most common historical behavior, an assertion failure:<br>C:\cm3.2009-02-20>\bin\x86\cdb \cm3.2009-02-01\bin\Juno.exe<br><br>***<br>*** runtime error:<br>*** <*ASSERT*> failed.<br>*** file "..\src\winvbt\WinContext.m3", line 165<br>***<br>Stack trace:<br> FP PC Procedure<br>--------- --------- -------------------------------<br>0x1b3f830 0xf61c9a PushPixmap + 0x43c in ..\src\winvbt\WinContext.m3<br>0x1b3f8f8 0xf6fdcc PixmapCom + 0x932 in ..\src\winvbt\WinPaint.m3<br>0x1b3fd54 0xf6dcf5 PaintBatch + 0x225 in ..\src\winvbt\WinPaint.m3<br>0x1b3fdbc 0xf685be PaintBatchVBT + 0x12d in ..\src\winvbt\WinTrestle.m3<br>0x1b3fe04 0xf66ebd WindowProc + 0x699 in ..\src\winvbt\WinTrestle.m3<br>0x1b3fe30 0x7e418734 <???><br>0x1b3fe98 0x7e418816 <???><br>0x1b3fef8 0x7e4189cd <???><br>0x1b3ff08 0x7e4196c7 <???><br>0x1b3ff50 0xf6bc99 MessengerApply + 0x21f in ..\src\winvbt\WinTrestle.m3<br>......... ......... ... more frames ...<br>(1860.1d80): Break instruction exception - code 80000003 (first chance)<br>eax=00000001 ebx=000000a5 ecx=00001e2f edx=7c90e514 esi=01b3f5d8 edi=005d526b<br>eip=7c90120e esp=01b3f5c0 ebp=01b3f5d8 iopl=0 nv up ei pl nz na po nc<br>cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000202<br>ntdll!DbgBreakPoint:<br>7c90120e cc int 3<br>0:003> .lines<br>Line number information will be loaded<br>0:003> k999<br>ChildEBP RetAddr<br>01b3f5bc 005d52b7 ntdll!DbgBreakPoint<br>01b3f5d8 005cbd9e m3core!RTOS__Crash+0x4c [..\src\runtime\WIN32\RTOS.m3 @ 29]<br>01b3f5f0 005c9b0e m3core!RTProcess__Crash+0x68 [..\src\runtime\common\RTProcess.<br>m3 @ 66]<br>01b3f608 005c9822 m3core!RTError__EndError+0x37 [..\src\runtime\common\RTError.m<br>3 @ 118]<br>01b3f620 005ca0c3 m3core!RTError__MsgS+0x8d [..\src\runtime\common\RTError.m3 @<br>40]<br>01b3f668 005c9e61 m3core!RTException__Crash+0x1d0 [..\src\runtime\common\RTExcep<br>tion.m3 @ 79]<br>01b3f6a0 005c9dc1 m3core!RTException__DefaultBackstop+0x6f [..\src\runtime\commo<br>n\RTException.m3 @ 39]<br>01b3f6bc 005d6df3 m3core!RTException__InvokeBackstop+0x28 [..\src\runtime\common<br>\RTException.m3 @ 25]<br>01b3f6e8 005c9eeb m3core!RTException__Raise+0x63 [..\src\runtime\ex_frame\RTExFr<br>ame.m3 @ 29]<br>01b3f718 005c9dc1 m3core!RTException__DefaultBackstop+0xf9 [..\src\runtime\commo<br>n\RTException.m3 @ 47]<br>01b3f734 005d6df3 m3core!RTException__InvokeBackstop+0x28 [..\src\runtime\common<br>\RTException.m3 @ 25]<br>01b3f760 005b5669 m3core!RTException__Raise+0x63 [..\src\runtime\ex_frame\RTExFr<br>ame.m3 @ 29]<br>01b3f7a4 00f62a39 m3core!RTHooks__ReportFault+0x93 [..\src\runtime\common\RTHook<br>s.m3 @ 110]<br>01b3f7b4 00f61c9a m3ui!MM_WinContext_CRASH+0x11 [..\src\winvbt\WinContext.m3 @ 1<br>7]<br>01b3f830 00f6fdcc m3ui!WinContext__PushPixmap+0x43c [..\src\winvbt\WinContext.m3<br> @ 167]<br>01b3f8f8 00f6dcf5 m3ui!WinPaint__PixmapCom+0x932 [..\src\winvbt\WinPaint.m3 @ 71<br>2]<br>01b3fd54 00f685be m3ui!WinPaint__PaintBatch+0x225 [..\src\winvbt\WinPaint.m3 @ 5<br>1]<br>01b3fdbc 00f66ebd m3ui!WinTrestle__PaintBatchVBT+0x12d [..\src\winvbt\WinTrestle<br>.m3 @ 1574]<br>01b3fe04 7e418734 m3ui!WinTrestle__WindowProc+0x699 [..\src\winvbt\WinTrestle.m3<br> @ 1163]<br>01b3fe30 7e418816 USER32!InternalCallWinProc+0x28<br>01b3fe98 7e4189cd USER32!UserCallWinProcCheckWow+0x150<br>01b3fef8 7e4196c7 USER32!DispatchMessageWorker+0x306<br>01b3ff08 00f6bc99 USER32!DispatchMessageA+0xf<br>01b3ff50 005d9e8a m3ui!WinTrestle__MessengerApply+0x21f [..\src\winvbt\WinTrestl<br>e.m3 @ 2450]<br>01b3ff88 005d9c23 m3core!ThreadWin32__RunThread+0x1f6 [..\src\thread\WIN32\Threa<br>dWin32.m3 @ 579]<br>01b3ffb4 7c80b729 m3core!ThreadWin32__ThreadBase+0x3a [..\src\thread\WIN32\Threa<br>dWin32.m3 @ 548]<br>01b3ffec 00000000 kernel32!BaseThreadStart+0x37<br>0:003><br> <br> <br>This we shall blame on Trestle not fully being ported to Win32, I guess.<br>At the very least, it seems to the behavior going back a while.<br>You can occasionally see this in head, but usually you see #3.<br> <br><br>Behavior #2<br><br>Sometimes, rarely, Juno hangs in startup on NT.<br>I believe I have seen this both with fairly old and current versions.<br>This occurs very rarely. I might look into it more after #3 is solved.<br> <br> <br>Behavior #3<br><br> <br>An access violation (SIGSEGV to Unix folks) during startup.<br>This is the most common behavior with current source, going back a few months.<br>It is almost always accessing address 00200000 and the instruction pointer is very<br>often in Thread__Join, but neither are always true.<br>Sometimes it accesses 00200000 elsewhere. Sometimes it accesses NULL.<br> <br><br>C:\cm3.2009-02-20>\bin\x86\cdb -g \cm3.2009-03-01\bin\Juno.exe<br>(1ac4.1e9c): Access violation - code c0000005 (first chance)<br>First chance exceptions are reported before any exception handling.<br>This exception may be expected and handled.<br>eax=00000001 ebx=00200000 ecx=00000004 edx=0060b150 esi=021a6600 edi=02812974<br>eip=005dac96 esp=0012f97c ebp=0012f9a0 iopl=0 nv up ei pl nz na pe nc<br>cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00010206<br>m3core!Thread__Join+0x13f:<br>005dac96 8b53fc mov edx,dword ptr [ebx-4] ds:0023:001ffffc=????????<br>0:000> r ebx<br>ebx=00200000<br>0:000> .lines<br>Line number information will be loaded<br>0:000> k<br>ChildEBP RetAddr<br>0012f9a0 1000e263 m3core!Thread__Join+0x13f [..\src\thread\WIN32\ThreadWin32.m3<br>@ 710]<br>0012f9e4 0041c7b7 juno_compiler!JunoCompile__ProcDecl+0x1f9 [..\src\JunoCompile.<br>m3 @ 256]<br>0012fa1c 0041d195 Juno!Editor__Pass2+0x1a5 [..\src\Editor.m3 @ 730]<br>0012fac8 0041d04e Juno!Editor__Compile2+0x137 [..\src\Editor.m3 @ 813]<br>0012fafc 0043d555 Juno!Editor__Compile+0x53 [..\src\Editor.m3 @ 793]<br>0012fb3c 0043d74e Juno!Juno__CompileEditor+0x2c [..\src\Juno.m3 @ 140]<br>0012fbd8 0043e079 Juno!Juno__CompileModule+0x12c [..\src\Juno.m3 @ 174]<br>0012fd80 0044b6a5 Juno!Juno__CompileModules+0x2d1 [..\src\Juno.m3 @ 263]<br>0012fee0 005c8e14 Juno!Juno_M3+0x1fa1 [..\src\Juno.m3 @ 2134]<br>0012ff24 005c83ec m3core!RTLinker__RunMainBody+0x25a [..\src\runtime\common\RTLi<br>nker.m3 @ 399]<br>0012ff3c 005c8495 m3core!RTLinker__AddUnitI+0xf7 [..\src\runtime\common\RTLinker<br>.m3 @ 113]<br>0012ff60 00401038 m3core!RTLinker__AddUnit+0xa1 [..\src\runtime\common\RTLinker.<br>m3 @ 122]<br>0012ff7c 004b0d84 Juno!main+0x38 [_m3main.mc @ 4]<br>0012ffc0 7c817077 Juno!__tmainCRTStartup+0x10f [f:\dd\vctools\crt_bld\self_x86\c<br>rt\src\crtexe.c @ 582]<br>0012fff0 00000000 kernel32!BaseProcessStart+0x23<br>0:000><br> <br>#4 sometimes other, for example:<br>***<br>*** runtime error:<br>*** <*ASSERT*> failed.<br>*** file "..\src\runtime\common\RTCollector.m3", line 411<br>***<br>Stack trace:<br> FP PC Procedure<br>--------- --------- -------------------------------<br> 0x12f710 0x5bf033 Move + 0xcc in ..\src\runtime\common\RTCollector.m3<br> 0x12f754 0x5bae91 Walk + 0x467 in ..\src\runtime\common\RTHeapMap.m3<br> 0x12f778 0x5ba76a DoWalkRef + 0x62 in ..\src\runtime\common\RTHeapMap.m3<br> 0x12f7a4 0x5ba700 WalkRef + 0x100 in ..\src\runtime\common\RTHeapMap.m3<br> 0x12f7cc 0x5c0bb0 CleanBetween + 0xe1 in ..\src\runtime\common\RTCollector.m<br>3<br> 0x12f7f8 0x5c0a20 CleanPage + 0x5b in ..\src\runtime\common\RTCollector.m3<br> 0x12f84c 0x5c0312 CollectSomeInStateZero + 0x5b2 in ..\src\runtime\common\RT<br>Collector.m3<br> 0x12f860 0x5bfd24 CollectSome + 0x6e in ..\src\runtime\common\RTCollector.m3<br> 0x12f890 0x5bfa23 CollectEnough + 0x90 in ..\src\runtime\common\RTCollector.<br>m3<br> 0x12f8f0 0x5c18c0 AllocTraced + 0xef in ..\src\runtime\common\RTCollector.m3<br>......... ......... ... more frames ...<br>(14b0.121c): Break instruction exception - code 80000003 (first chance)<br><br>for example:<br>***<br>*** runtime error:<br>*** An array subscript was out of range.<br>*** file "..\src\vbt\VBTRep.m3", line 644<br>***<br>Stack trace:<br> FP PC Procedure<br>--------- --------- -------------------------------<br>0x260fee8 0xf92ae9 Redisplay + 0x38d in ..\src\vbt\VBTRep.m3<br>0x260ff10 0xf926a8 UncoverRedisplay + 0xd2 in ..\src\vbt\VBTRep.m3<br>0x260ff38 0xf9272a RdApply + 0x7d in ..\src\vbt\VBTRep.m3<br>0x260ff88 0x5da3ab RunThread + 0x207 in ..\src\thread\WIN32\ThreadWin32.m3<br>0x260ffb4 0x5da133 ThreadBase + 0x3a in ..\src\thread\WIN32\ThreadWin32.m3<br>......... ......... ... more frames ...<br>(1c3c.e3c): Break instruction exception - code 80000003 (first chance)<br> <br>I figure these are just a variation of #3.<br><br>Now, I finally learned how to give CVS a date to checkout or update.<br>And NT builds very fast due to the integrated backend.<br>So I have been building various dates.<br><br>The change between #3 and #1 happened around mid February 2009.<br>Specifically, ignoring the rare #2, 2009/02/15 always fails an assert,<br>#4 above is from 2009/02/20.<br>And 2009/02/20 also access violates on 00200000 often.<br> <br><br> - Jay<br><br></div></span></blockquote></div><br></div></body></html>