[M3devel] crash in m3bundle on SPARC64_OPENBSD

[Jay K]

== package /dev2/cm3/m3-sys/cm3ide ==

 +++ /cm3/bin/cm3  -build -DROOT=/dev2/cm3 -DCM3_VERSION_TEXT=d5.8.2 -DCM3_VERSI
ON_NUMBER=050802 -DCM3_LAST_CHANGED=2009-07-15 +++
--- building in SPARC64_OPENBSD ---
ignoring ../src/m3overrides
/cm3/bin/m3bundle -name CM3_IDE_Bundle -F/tmp/qk

***
*** runtime error:
***    Segmentation violation - possible attempt to dereference NIL
***    pc = 0x134afc = NoteStackLocations + 0x2c in ../src/runtime/common/RTColl
ector.m3
***
Abort trap (core dumped)
new source -> compiling Buf.i3
 
$ cd /dev2/cm3/m3-sys/cm3ide
$ rm -rf SPARC64_OPENBSD/
$ /cm3/bin/m3bundle -name CM3_IDE_Bundle -F/tmp/qk
 

***
*** runtime error:
***    Segmentation violation - possible attempt to dereference NIL
***    pc = 0x134afc = NoteStackLocations + 0x2c in ../src/runtime/common/RTColl
ector.m3
***
Abort trap (core dumped)

$ gdb --args /cm3/bin/m3bundle -name CM3_IDE_Bundle -F/tmp/qk

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There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "sparc64-unknown-openbsd4.3"...
(gdb) run
Starting program: /cm3/bin/m3bundle -name CM3_IDE_Bundle -F/tmp/qk
Program received signal SIGSEGV, Segmentation fault.
0x0000000000134afc in RTCollector__NoteStackLocations (
    M3_AJWxb1_start=0xfffffffffffcbe, M3_AJWxb1_stop=0x61daebea047a30af)
    at ../src/runtime/common/RTCollector.m3:525
525           WITH page = AddressToPage(fp^) DO
(gdb) disas
Dump of assembler code for function RTCollector__NoteStackLocations:
0x0000000000134ad0 : save  %sp, -224, %sp
0x0000000000134ad4 : stx  %i0, [ %fp + 0x87f
]
0x0000000000134ad8 : stx  %i1, [ %fp + 0x887
]
0x0000000000134adc :        ldx  [ %fp + 0x8
7f ], %g1
0x0000000000134ae0 :        stx  %g1, [ %fp
+ 0x7df ]
0x0000000000134ae4 :        ldx  [ %fp + 0x8
87 ], %g1
0x0000000000134ae8 :        add  %g1, -8, %g
1
0x0000000000134aec :        stx  %g1, [ %fp
+ 0x887 ]
0x0000000000134af0 :        b  %xcc, 0x134ba
c 
0x0000000000134af4 :        nop
0x0000000000134af8 :        ldx  [ %fp + 0x7
df ], %g1
0x0000000000134afc :        ldx  [ %g1 ], %g    <<< here
1
0x0000000000134b00 :        mov  %g1, %o0
---Type  to continue, or q  to quit---q
Quit
(gdb) p $g1
$1 = 0   <<< null deref 
(gdb) bt
#0  0x0000000000134afc in RTCollector__NoteStackLocations (
    M3_AJWxb1_start=0xfffffffffffcbe, M3_AJWxb1_stop=0x61daebea047a30af)
    at ../src/runtime/common/RTCollector.m3:525
#1  0x000000000015a44c in ThreadPThread__ProcessMe (
    M3_CgoaiZ_me=0xd800000000000000, M3_Ad3xEV_p=0x58daebea047a3667)
    at ../src/thread/PTHREAD/ThreadPThread.m3:1014
#2  0x0000000000159e48 in ThreadF__ProcessStacks (
    M3_Ad3xEV_p=0x10000000004d8c29)
    at ../src/thread/PTHREAD/ThreadPThread.m3:938
#3  0x000000000013680c in RTCollector__CollectSomeInStateZero ()
    at ../src/runtime/common/RTCollector.m3:821
#4  0x0000000000135ee4 in RTCollector__CollectSome ()
    at ../src/runtime/common/RTCollector.m3:721
#5  0x0000000000135600 in RTCollector__CollectEnough (
    M3_AicXUJ_allocator=56 '8') at ../src/runtime/common/RTCollector.m3:653
#6  0x000000000013986c in RTCollector__LongAlloc (
    M3_Cwb5VA_dataSize=11889503016258108627,
    M3_Cwb5VA_dataAlignment=12754194144713243859,
    M3_D000bG_pool=0xc300000000000000)
    at ../src/runtime/common/RTCollector.m3:1438
#7  0x0000000000139644 in RTHeapRep__AllocTraced (M3_Cwb5VA_dataSize=0,
    M3_Cwb5VA_dataAlignment=0, M3_D000bG_pool=0x0)
    at ../src/runtime/common/RTCollector.m3:1400
#8  0x0000000000130578 in RTAllocator__GetTracedObj (M3_Eic7CK_def=0x0)
---Type  to continue, or q  to quit---
    at ../src/runtime/common/RTAllocator.m3:222
#9  0x000000000012fc50 in RTHooks__AllocateTracedObj (M3_AJWxb1_defn=0x0)
    at ../src/runtime/common/RTAllocator.m3:120
#10 0x0000000000156c8c in ThreadPThread__CreateT (M3_CgoaiZ_act=0x0)
    at ../src/thread/PTHREAD/ThreadPThread.m3:497
#11 0x000000000015bb5c in ThreadF__Init ()
    at ../src/thread/PTHREAD/ThreadPThread.m3:1377
#12 0x000000000014392c in RTLinker__InitRuntime (
    M3_AcxOUs_p_argc=7455543629306877523,
    M3_AJWxb1_p_argv=0x5f5253483d737368, M3_AJWxb1_p_envp=0x5353485f545459,
    M3_AJWxb1_p_instance=0x3d2f6465762f7474)
    at ../src/runtime/common/RTLinker.m3:59
#13 0x00000000001028e4 in main (argc=0, argv=0x0, envp=0x0) at _m3main.mc:3
 
 
It happens every time.
 
 
wild guess would be that..SPARC platforms without stack walker don't work?
No, SPARC32_LINUX does better.
 

That no SPARC64 platform works? Could be.
We'll see in SPARC64_SOLARIS, SPARC64_LINUX /eventually/.

 
I'll try to let this go for now, it being SPARC64_OPENBSD..
 
 
This is also two releases behind.
 
 
$ uname -a
OpenBSD jay-sun2.jkhome 4.3 GENERIC#1555 sparc64
 
 
current OpenBSD release is 4.5.
 

 - Jay