[M3devel] garbage collection problem on LINUXLIBC6?

Wed May 28 04:10:05 CEST 2008

Dear developers:
I have finally understood that the issue was related with the terminal emulator from which I launched the M3 executables. All M3 executables are fine and working well.
Thanks for your attention.

--- 24/5/08, Daniel Alejandro Benavides D. <dabenavidesd at yahoo.es> wrote:
De: Daniel Alejandro Benavides D. <dabenavidesd at yahoo.es>
Asunto: Re: [M3devel] garbage collection problem on LINUXLIBC6?
Para: m3devel at elegosoft.com
Fecha: sábado, 24 mayo, 2008 12:29

Hi:
I recently have compiled the cm3 system with good results on a 2-core machine on LINUXLIBC6, kubuntu of 32 bits. It runs gui applications of cm3 with no problems at all.
I think maybe the issue is related with something about the operating system, or at least the machine, I didn't check this until now.

Thanks

--- 19/5/08, Daniel Alejandro Benavides D. <dabenavidesd at yahoo.es> wrote:
De: Daniel Alejandro Benavides D. <dabenavidesd at yahoo.es>
Asunto: Re: [M3devel] garbage collection problem on LINUXLIBC6?
Para: m3devel at elegosoft.com, "Randy Coleburn"
 <rcoleburn at scires.com>
Fecha: lunes, 19 mayo, 2008 12:02

Hi again:
and the process is using the cpu very much (using top command)

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 9758 daniel    20   0 33644 3836 2684 R 60.0  0.7   1:05.17 draw

Thanks in advance.

--- 19/5/08, Daniel Alejandro Benavides D. <dabenavidesd at yahoo.es> wrote:
De: Daniel Alejandro
 Benavides D. <dabenavidesd at yahoo.es>
Asunto: Re: [M3devel] garbage collection problem on LINUXLIBC6?
Para: m3devel at elegosoft.com, "Randy Coleburn" <rcoleburn at scires.com>
Fecha: lunes, 19 mayo, 2008 11:52

Hi Randy:
In my case, the program just doesn't start, maybe after some minutes yes, but obviously this is abnormal.
When I start mentor @M3tracelinker, I got after a lot of output the following lines and it just doesn't start after it:
  ../src/color/Color.i3(3)
  ../src/runtime/common/RTHooks.i3(3)
RunMainBody: exec: ../src/color/ColorNameTable.i3(3)
RunMainBody: exec: ../src/color/ColorNameF.i3(3)
RunMainBody: exec:
 ../src/color/ColorNa

But if I put @M3nogc @M3tracelinker the program starts and the output is:
RunMainBody: ../LINUXLIBC6/MentorBundle.m3(2)
  ../LINUXLIBC6/MentorBundle.i3(5)
  ../src/rw/TextWr.i3(3)
  ../src/rw/Wr.i3(3)

 ../src/thread/Common/Thread.i3(3)
  ../src/text/Text.i3(3)
  ../src/bundleintf/BundleRep.i3(3)
  ../src/bundleintf/Bundle.i3(3)

 ../src/runtime/common/RTHooks.i3(3)
RunMainBody: exec: ../LINUXLIBC6/MentorBundle.m3(3)
RunMainBody: exec: ../LINUXLIBC6/MentorBundle.i3(3)
RunMainBody: exec: ../src/Main.m3(3)

However when examining a simple gui program, the stdout shows the same  out for @M3tracelinker with or without garbage collection

  ../src/split/TextVBT.i3(5)
  ../src/runtime/common/RTHooks.i3(3)
RunMainBody: exec: ../src/split/TextVBTClass.i3(3)
RunMainBody: exec: ../src/split/TextVBT.m3(3)
RunMainBody: exec: ../src/split/TextVBT.i3(3)
RunMainBody: exec: ../src/Draw.m3(3)

If I run the program under m3gdb without parametres, breaking on RTLinker.RunMainBody, I got:
Breakpoint 3, RunMainBody (m=16_b7e108c0)
    at ../src/runtime/common/RTLinker.m3:349
349       VAR desc, desc2: InitPtr;  imp: RT0.ImportPtr;  m2:
 RT0.ModulePtr;
(m3gdb)
Continuando.

Breakpoint 3, RunMainBody (m=16_b7e10ba0)
    at ../src/runtime/common/RTLinker.m3:349
349       VAR desc, desc2: InitPtr;  imp: RT0.ImportPtr;  m2: RT0.ModulePtr;
(m3gdb)
Continuando.

Breakpoint 3, RunMainBody (m=16_b7e0b660)
    at ../src/runtime/common/RTLinker.m3:349
349       VAR desc, desc2: InitPtr;  imp: RT0.ImportPtr;  m2: RT0.ModulePtr;
(m3gdb)
Continuando.

[Nuevo Thread -1234015344 (LWP 9706)]
[Thread -1234015344 (LWP 9706) exited]

And the program hangs there.
And again the same situation on the stack trace when killing the process inside m3gdb (also got a segment violation on m3gdb):

(m3gdb) where
#0  0xb7fbf410 in __kernel_vsyscall ()
#1  0xb7108ae7 in pthread_kill () from
 /lib/tls/i686/cmov/libpthread.so.0
#2  0xb737c397 in SignalThread (act=16_08055d88, state=Stopping)
    at ../src/thread/PTHREAD/ThreadPThread.m3:1058
#3  0xb737c6dc in StopWorld () at ../src/thread/PTHREAD/ThreadPThread.m3:1142
#4  0xb737b9e7 in SuspendOthers ()
    at ../src/thread/PTHREAD/ThreadPThread.m3:905
#5  0xb7355244 in CollectSomeInStateZero ()
    at ../src/runtime/common/RTCollector.m3:755
#6  0xb7355203 in CollectSome () at ../src/runtime/common/RTCollector.m3:729
#7  0xb7354c24 in CollectEnough () at ../src/runtime/common/RTCollector.m3:656
#8  0xb73586c1 in AllocTraced (def=16_b7dfbfb4, dataSize=456, dataAlignment=4,
    initProc=Static link does not lead to a valid frame.
) at ../src/runtime/common/RTCollector.m3:1462
#9  0xb734af25 in GetTracedObj (def=16_b7dfbfb4)
    at
 ../src/runtime/common/RTAllocator.m3:206
#10 0xb734a9b0 in AllocateTracedObj (defn=16_b7dfbfb4)
    at ../src/runtime/common/RTAllocator.m3:131
#11 0xb7d63df5 in Connect (inst=NIL, trsl=NIL) at ../src/xvbt/XClientF.m3:495
#12 0xb7d66717 in DoConnect (self=16_b6f41d5c, inst=NIL, localOnly=FALSE,
    t=NIL) at ../src/xvbt/XClientF.m3:637
#13 0xb7d46c23 in DoConnect (self=16_b6f41d5c, inst=NIL, localOnly=FALSE,
    t=NIL) at ../src/xvbt/XClient.m3:1495
#14 0xb7d9962c in Connect (inst=NIL, localOnly=FALSE)
---Type <return> to continue, or q <return> to quit---
    at ../src/vbt/TrestleClass.m3:30
#15 0xb7df2117 in Default () at ../src/trestle/Trestle.m3:838
#16 0xb7ded789 in PreAttach (v=16_b6f41cf8, trsl=NIL)
    at ../src/trestle/Trestle.m3:264
#17 0xb7deb95b in Install (v=16_b6f41cf8, applName=NIL, inst=NIL,
Fallo de
 segmentación

Maybe could be some gcc backend issue?
I would like to know if others have the same problem.
Thanks.

--- 19/5/08, Randy Coleburn <rcoleburn at scires.com> wrote:
De: Randy Coleburn <rcoleburn at scires.com>
Asunto: Re: [M3devel] garbage collection problem on LINUXLIBC6?
Para: m3devel at elegosoft.com
Fecha: lunes, 19 mayo, 2008 10:08

Daniel, I have this same problem on GUI applications created on cm3 v4.1.  If I don't put "@M3novm" on the command line, the programs crash during startup.  It has something to do with the garbage collector.  In my testing of cm3 d5.7.0 on Windows XP, I have not run into the problem yet, so I think Tony has fixed it with his new garbage collector, at least on Windows.
Regards,
Randy

>>> "Daniel Alejandro Benavides D." <dabenavidesd at yahoo.es> 5/18/2008 6:39 PM >>>

Dear developers:
I'm running a new installed cm3 on an ubuntu 8.04 32 bits, and I can't run anything with gui if I don't use @M3nogc
The rest of the applications, the compiler, and m3browser seem to work without problems ¿?
I'm debugging mentor but I just got this until now:
Breakpoint 5, Init () at ../src/color/ColorName.m3:207
207           IF table.put (NormalizeName (Basic [i].name), i) THEN
(m3gdb) where
#0  Init () at ../src/color/ColorName.m3:207
#1  0xb7c7b7ff in ColorName (mode=1) at ../src/color/ColorName.m3:214
#2  0xb70e2389 in RunMainBody (m=16_b7ca2fa0) at ../src/runtime/common/RTLinker.m3:399
#3  0xb70e2055 in RunMainBody (m=16_b7d38100) at ../src/runtime/common/RTLinker.m3:379
#4  0xb70e2055 in RunMainBody (m=16_b7d2fe20) at ../src/runtime/common/RTLinker.m3:379
#5  0xb70e2055 in RunMainBody (m=16_b7d34480) at
 ../src/runtime/common/RTLinker.m3:379
#6  0xb70e2055 in RunMainBody (m=16_b7d30d60) at ../src/runtime/common/RTLinker.m3:379
#7  0xb70e2055 in RunMainBody (m=16_b7d4d620) at ../src/runtime/common/RTLinker.m3:379
#8  0xb70e2055 in RunMainBody (m=16_b7e31d80) at ../src/runtime/common/RTLinker.m3:379
#9  0xb70e2055 in RunMainBody (m=16_b7e33220) at ../src/runtime/common/RTLinker.m3:379
#10 0xb70e2055 in RunMainBody (m=16_b7e36d40) at ../src/runtime/common/RTLinker.m3:379
#11 0xb70e2055 in RunMainBody (m=16_b7e364e0) at ../src/runtime/common/RTLinker.m3:379
#12 0xb70e2055 in RunMainBody (m=16_b7e36ba0) at ../src/runtime/common/RTLinker.m3:379
#13 0xb70e2055 in RunMainBody (m=16_b7e32cc0) at ../src/runtime/common/RTLinker.m3:379
#14 0xb70e2055 in RunMainBody (m=16_b7e32900) at ../src/runtime/common/RTLinker.m3:379
#15 0xb70e2055 in RunMainBody (m=16_08255600) at ../src/runtime/common/RTLinker.m3:379
#16
 0xb70e2055 in RunMainBody (m=16_08256040) at ../src/runtime/common/RTLinker.m3:379
#17 0xb70e2055 in RunMainBody (m=16_08312aa0) at ../src/runtime/common/RTLinker.m3:379
#18 0xb70e0dff in AddUnitI (m=16_08312aa0) at ../src/runtime/common/RTLinker.m3:113
#19 0xb70e0e8d in AddUnit (b={"Main_M3", Declared at: ../src/Main.m3:164}) at ../src/runtime/common/RTLinker.m3:122
#20 0x0806df1e in main (argc=3, argv=0xbfa03774, envp=0xbfa03784) at _m3main.mc:4
#21 0xb6d44450 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#22 0x0806de71 in _start ()
(m3gdb) cont
Continuando.

Breakpoint 5, Init () at ../src/color/ColorName.m3:207
207           IF table.put (NormalizeName (Basic [i].name), i) THEN
(m3gdb) cont
and the process hangs there when debugging mentor.

I have checked  Juno under m3gdb after have killed it and got:

(m3gdb) where
#0 
 0xb7fb0410 in __kernel_vsyscall ()
#1  0xb7018ae7 in pthread_kill () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb728c397 in SignalThread (act=16_0813c120, state=Stopping) at ../src/thread/PTHREAD/ThreadPThread.m3:1058
#3  0xb728c55e in StopWorld () at ../src/thread/PTHREAD/ThreadPThread.m3:1116
#4  0xb728b9e7 in SuspendOthers () at ../src/thread/PTHREAD/ThreadPThread.m3:905
#5  0xb7265244 in CollectSomeInStateZero () at ../src/runtime/common/RTCollector.m3:755
#6  0xb7265203 in CollectSome () at ../src/runtime/common/RTCollector.m3:729
#7  0xb7264c24 in CollectEnough () at ../src/runtime/common/RTCollector.m3:656
#8  0xb72686c1 in AllocTraced (def=16_b7be1400, dataSize=12, dataAlignment=4, initProc=NIL)
    at ../src/runtime/common/RTCollector.m3:1462
#9  0xb725ad8f in GetTracedRef (def=16_b7be1400) at ../src/runtime/common/RTAllocator.m3:191
#10 0xb725a987
 in AllocateTracedRef (defn=16_b7be1400) at ../src/runtime/common/RTAllocator.m3:126
#11 0xb7b5d8fb in Put (tbl=16_b6e50438, key=8047, val=244) at ../LINUXLIBC6/IntIntTbl.m3 => ../src/table/Table.mg:127
#12 0xb7dd4e2c in Set (a='>', b='o', c=244, bothCases=FALSE, reversed=TRUE) at ../src/etext/KeyFilter.m3:288
#13 0xb7dd521c in Set (a='o', b='>', c=244, bothCases=FALSE, reversed=FALSE) at ../src/etext/KeyFilter.m3:304
#14 0xb7dd5882 in KeyFilter (mode=1) at ../src/etext/KeyFilter.m3:437
#15 0xb7273389 in RunMainBody (m=16_b7e51da0) at ../src/runtime/common/RTLinker.m3:399
#16 0xb7273055 in RunMainBody (m=16_b7e547e0) at ../src/runtime/common/RTLinker.m3:379
#17 0xb7273055 in RunMainBody (m=16_b7e56c00) at ../src/runtime/common/RTLinker.m3:379
#18 0xb7273055 in RunMainBody (m=16_b7e54240) at ../src/runtime/common/RTLinker.m3:379
#19 0xb7273055 in RunMainBody (m=16_b7e537e0) at
 ../src/runtime/common/RTLinker.m3:379
#20 0xb7273055 in RunMainBody (m=16_080b85a0) at ../src/runtime/common/RTLinker.m3:379
#21 0xb7271dff in AddUnitI (m=16_080b85a0) at ../src/runtime/common/RTLinker.m3:113
#22 0xb7271e8d in AddUnit (b={"Juno_M3", Declared at: ../src/Juno.m3:1974}) at ../src/runtime/common/RTLinker.m3:122
#23 0x0805120e in main (argc=1, argv=0xbf96ff14, envp=0xbf96ff1c) at _m3main.mc:4
#24 0xb6ed5450 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#25 0x08051161 in _start ()

When killing mentor under m3gdb it shows like the same back trace:
(m3gdb) where
#0  0xb70fb39a in SignalThread (act=16_0834ff08, state=Stopping) at ../src/thread/PTHREAD/ThreadPThread.m3:1058
#1  0xb70fb6dc in StopWorld () at ../src/thread/PTHREAD/ThreadPThread.m3:1142
#2  0xb70fa9e7 in SuspendOthers () at ../src/thread/PTHREAD/ThreadPThread.m3:905
#3  0xb70d4244 in CollectSomeInStateZero
 () at ../src/runtime/common/RTCollector.m3:755
#4  0xb70d4203 in CollectSome () at ../src/runtime/common/RTCollector.m3:729
#5  0xb70d3c24 in CollectEnough () at ../src/runtime/common/RTCollector.m3:656
#6  0xb70d76c1 in AllocTraced (def=16_b712d934, dataSize=24, dataAlignment=4, initProc=Static link does not lead to a valid frame.
)
    at ../src/runtime/common/RTCollector.m3:1462
#7  0xb70c9f25 in GetTracedObj (def=16_b712d934) at ../src/runtime/common/RTAllocator.m3:206
#8  0xb70c99b0 in AllocateTracedObj (defn=16_b712d934) at ../src/runtime/common/RTAllocator.m3:131
#9  0xb710d586 in New (a={'a','z','u','r','e','4'}) at ../src/text/Text8Short.m3:16
#10 0xb710ce87 in New (a={'a','z','u','r','e','4'}) at ../src/text/Text8.m3:18
#11 0xb710ba9d in FromChars (a={'a','z','u','r','e','4'}) at ../src/text/Text.m3:206
#12 0xb7c7a62f in NormalizeName (a=16_b7ca378c) at
 ../src/color/ColorName.m3:83
#13 0xb7c7b789 in Init () at ../src/color/ColorName.m3:207
#14 0xb7c7b7ff in ColorName (mode=1) at ../src/color/ColorName.m3:214
#15 0xb70e2389 in RunMainBody (m=16_b7ca2fa0) at ../src/runtime/common/RTLinker.m3:399
#16 0xb70e2055 in RunMainBody (m=16_b7d38100) at ../src/runtime/common/RTLinker.m3:379
#17 0xb70e2055 in RunMainBody (m=16_b7d2fe20) at ../src/runtime/common/RTLinker.m3:379
#18 0xb70e2055 in RunMainBody (m=16_b7d34480) at ../src/runtime/common/RTLinker.m3:379
#19 0xb70e2055 in RunMainBody (m=16_b7d30d60) at ../src/runtime/common/RTLinker.m3:379
#20 0xb70e2055 in RunMainBody (m=16_b7d4d620) at ../src/runtime/common/RTLinker.m3:379
#21 0xb70e2055 in RunMainBody (m=16_b7e31d80) at ../src/runtime/common/RTLinker.m3:379
#22 0xb70e2055 in RunMainBody (m=16_b7e33220) at ../src/runtime/common/RTLinker.m3:379
#23 0xb70e2055 in RunMainBody (m=16_b7e36d40) at
 ../src/runtime/common/RTLinker.m3:379
#24 0xb70e2055 in RunMainBody (m=16_b7e364e0) at ../src/runtime/common/RTLinker.m3:379
#25 0xb70e2055 in RunMainBody (m=16_b7e36ba0) at ../src/runtime/common/RTLinker.m3:379
#26 0xb70e2055 in RunMainBody (m=16_b7e32cc0) at ../src/runtime/common/RTLinker.m3:379
#27 0xb70e2055 in RunMainBody (m=16_b7e32900) at ../src/runtime/common/RTLinker.m3:379
#28 0xb70e2055 in RunMainBody (m=16_08255600) at ../src/runtime/common/RTLinker.m3:379
#29 0xb70e2055 in RunMainBody (m=16_08256040) at ../src/runtime/common/RTLinker.m3:379
#30 0xb70e2055 in RunMainBody (m=16_08312aa0) at ../src/runtime/common/RTLinker.m3:379
#31 0xb70e0dff in AddUnitI (m=16_08312aa0) at ../src/runtime/common/RTLinker.m3:113
#32 0xb70e0e8d in AddUnit (b={"Main_M3", Declared at: ../src/Main.m3:164}) at ../src/runtime/common/RTLinker.m3:122
#33 0x0806df1e in main (argc=3, argv=0xbfa03774, envp=0xbfa03784) at _m3main.mc:4
#34
 0xb6d44450 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#35 0x0806de71 in _start ()

Thanks in advance

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