[M3devel] Mika's thread test, -tests read

[Dragiša Durić]

Yes. 
[New Thread 0x7ffff7fd1700 (LWP 24695)]
[New Thread 0x7ffff77d0700 (LWP 24696)]
[New Thread 0x7ffff6fcf700 (LWP 24697)]
done
running...printing oldest/median age/newest
.
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7ffff77d0700 (LWP 24696)]
0x00000000004374e5 in RTCollector__Move (self=<error reading variable>, cp=<error reading variable>)
    at ../src/runtime/common/RTCollector.m3:409
409	    IF hdr.typecode = RT0.TextLitTypecode THEN RETURN END;
(gdb) bt
...

I am using unchanged thread test from m3core/tests/thread with only -tests nxread as argument. On AMD64_LINUX, mostly, although I had breaks on AMD64_DARWIN too.

I'll print future breaks with C stacks.

dd

On Apr 27, 2012, at 11:03 PM, Antony Hosking wrote:

> Is this one a SIGSEGV?
> 
> On Apr 27, 2012, at 3:30 PM, Dragiša Durić wrote:
> 
>> Interesting one.. RTCollector.Move. Thread suspension went well, looks like all problem is with AllocTraced() trigerring a collection.
>> 
>> dd
>> ===
>> (gdb) bt
>> #0  0x00000000004374e5 in RTCollector__Move (self=<error reading variable>, cp=<error reading variable>)
>>   at ../src/runtime/common/RTCollector.m3:409
>> #1  0x000000000046c320 in RTHeapMap__Walk (x=<error reading variable>, pc=<error reading variable>, v=<error reading variable>)
>>   at ../src/runtime/common/RTHeapMap.m3:202
>> #2  0x000000000046b9b7 in RTHeapMap__DoWalkRef (t=<error reading variable>, a=<error reading variable>, v=<error reading variable>)
>>   at ../src/runtime/common/RTHeapMap.m3:62
>> #3  0x000000000046b979 in RTHeapMap__DoWalkRef (t=<error reading variable>, a=<error reading variable>, v=<error reading variable>)
>>   at ../src/runtime/common/RTHeapMap.m3:57
>> #4  0x000000000046b979 in RTHeapMap__DoWalkRef (t=<error reading variable>, a=<error reading variable>, v=<error reading variable>)
>>   at ../src/runtime/common/RTHeapMap.m3:57
>> #5  0x000000000046b90b in RTHeapMap__WalkRef (h=<error reading variable>, v=<error reading variable>) at ../src/runtime/common/RTHeapMap.m3:47
>> #6  0x0000000000439b8d in RTCollector__CleanBetween (h=<error reading variable>, he=<error reading variable>, clean=<error reading variable>)
>>   at ../src/runtime/common/RTCollector.m3:1091
>> #7  0x0000000000439995 in RTCollector__CleanPage (page=<error reading variable>) at ../src/runtime/common/RTCollector.m3:1064
>> #8  0x0000000000439065 in RTCollector__CollectSomeInStateZero () at ../src/runtime/common/RTCollector.m3:885
>> #9  0x000000000043875b in RTCollector__CollectSome () at ../src/runtime/common/RTCollector.m3:720
>> #10 0x0000000000438438 in RTHeapRep__CollectEnough () at ../src/runtime/common/RTCollector.m3:654
>> #11 0x00000000004355c7 in RTAllocator__AllocTraced (dataSize=<error reading variable>, dataAlignment=<error reading variable>, 
>>   thread=<error reading variable>) at ../src/runtime/common/RTAllocator.m3:367
>> #12 0x00000000004345f8 in RTAllocator__GetTracedObj (def=<error reading variable>) at ../src/runtime/common/RTAllocator.m3:224
>> #13 0x0000000000433efb in RTHooks__AllocateTracedObj (defn=<error reading variable>) at ../src/runtime/common/RTAllocator.m3:122
>> #14 0x000000000042a4eb in FilePosix__New (fd=<error reading variable>, ds=<error reading variable>) at ../src/os/POSIX/FilePosix.m3:63
>> #15 0x000000000042c286 in FS__OpenFileReadonly (pn=<error reading variable>) at ../src/os/POSIX/FSPosix.m3:182
>> #16 0x00000000004182f3 in FileRd__Open (p=<error reading variable>) at ../src/rw/FileRd.m3:16
>> #17 0x00000000004051c4 in Main__NApply (cl=<error reading variable>) at ../src/Main.m3:208
>> #18 0x0000000000451424 in ThreadPThread__RunThread (me=<error reading variable>) at ../src/thread/PTHREAD/ThreadPThread.m3:450
>> #19 0x00000000004510df in ThreadPThread__ThreadBase (param=<error reading variable>) at ../src/thread/PTHREAD/ThreadPThread.m3:422
>> #20 0x0000003bed807d90 in start_thread (arg=0x7ffff6fcf700) at pthread_create.c:309
>> #21 0x0000003bed4f0f5d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115
>> (gdb) info threads
>> Id   Target Id         Frame 
>> * 4    Thread 0x7ffff6fcf700 (LWP 24429) "threadtest" 0x00000000004374e5 in RTCollector__Move (self=<error reading variable>, 
>>   cp=<error reading variable>) at ../src/runtime/common/RTCollector.m3:409
>> 3    Thread 0x7ffff77d0700 (LWP 24428) "threadtest" 0x0000003bed436604 in do_sigsuspend (set=0xeb41a0)
>>   at ../sysdeps/unix/sysv/linux/sigsuspend.c:63
>> 2    Thread 0x7ffff7fd1700 (LWP 24427) "threadtest" 0x0000003bed436604 in do_sigsuspend (set=0xeb41a0)
>>   at ../sysdeps/unix/sysv/linux/sigsuspend.c:63
>> 1    Thread 0x7ffff7fd3700 (LWP 24423) "threadtest" 0x0000003bed436604 in do_sigsuspend (set=0xeb41a0)
>>   at ../sysdeps/unix/sysv/linux/sigsuspend.c:63
>> (gdb) thr 3
>> 
>