Text archives Help

---

I introduced the segfault but was hoping to get it fixed before anyone noticed... The problem is that the BVH build now uses an AtomicCounter which I (recently?) updated to hopefully work in more places (now works on ICC according to Thiago) but apparently I broke the linux build. To see the problem run:

bin/atomic_counter 4 100

AtomicCounter::set(int) is the culprit, but again only on Linux GCC (Thiago tested 4.1.2). I would really appreciate it if someone would be willing to setup a cron job on some linux box somewhere to run the nightly Manta tests. The SSE tests on Steve's machine take 6 minutes to compile and 1.2 minutes to run:

http://dashboard.sci.utah.edu:8081/Manta/Dashboard/

I'll try to fixup the AtomicCounter::set implementation now. I'd like to reiterate that compilers are awful, awful things when you write your own assembly (mostly compilers only pay lip service to volatile).

Solomon

On Feb 15, 2008, at 11:24 AM, Li-Ta Lo wrote:

Hi,

There is something wrong with the modification to DynBVH in r2053. It
causes seg fault in release build. The seg fault does not show up
with debug build.

(gdb) bt
#0 0x000000338600d310 in __read_nocancel () from /lib64/ libpthread.so.0
#1  0x00002ad63f66d3b7 in Manta::Thread::niceAbort (
context=<value optimized out>) at /tmp/Manta/Core/Thread/ Thread.cc:308
#2  0x00002ad63f672bc6 in handle_abort_signals (sig=11, ctx=
{r8 = 0, r9 = 0, r10 = 0, r11 = 18410715272395620354, r12 = 0, r13 = 140735009527560, r14 = 179, r15 = 2, rdi = 2874, rsi = 179, rbp = 140735009528976, rbx = 6597488, rdx = 4294967295, rax = 6597488, rcx = 140735009528976, rsp = 178, rip = 46912501188080, eflags = 178, cs = 65535, gs = 65535, fs = 0, __pad0 = 0, err = 179, trapno = 140735009527552, oldmask = 47099666422575, cr2 = 66118, fpstate = 0xc28c000000000033, __reserved1 = {6, 14, 0, 46912501188104, 140735009526912, 9187343237679939583, 18410715274534715391, 18410715276682199039}})
    at /tmp/Manta/Core/Thread/Thread_pthreads.cc:681
#3  <signal handler called>
#4  Manta::DynBVH::build (this=0x64ab70, context=@0x7fff6c401c90,
    nodeID=<value optimized out>, objectBegin=178, objectEnd=179)
    at /tmp/Manta/Model/Groups/DynBVH.h:43
#5  0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=178,
    objectEnd=180) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#6  0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=178,
    objectEnd=183) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#7  0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=178,
    objectEnd=189) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#8  0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=178,
    objectEnd=200) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#9  0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=178,
    objectEnd=222) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#10 0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=178,
    objectEnd=267) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#11 0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=178,
    objectEnd=356) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#12 0x00002ad63ee2db20 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=0,
    objectEnd=356) at /tmp/Manta/Model/Groups/DynBVH.cc:1334
#13 0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=0,
    objectEnd=588) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#14 0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=0,
    objectEnd=1176) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#15 0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=0,
    objectEnd=1459) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#16 0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=0,
    objectEnd=2924) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#17 0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=0,
    objectEnd=4062) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#18 0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=0,
    objectEnd=4336) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#19 0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=0,
    objectEnd=4643) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#20 0x00002ad63ee2db09 in Manta::DynBVH::build (this=0x64ab70,
context=@0x7fff6c401c90, nodeID=<value optimized out>, objectBegin=0,
    objectEnd=11035) at /tmp/Manta/Model/Groups/DynBVH.cc:1333
#21 0x00002ad63ee2e204 in Manta::DynBVH::rebuild (this=0x64ab70,
    proc=<value optimized out>, numProcs=<value optimized out>)
    at /tmp/Manta/Model/Groups/DynBVH.cc:1279
#22 0x00002aaaaab22f20 in make_scene (args=<value optimized out>)
    at /tmp/Manta/scenes/triangleSceneViewer.cc:178
#23 0x00002ad63e6b8740 in Manta::Factory::readMOScene (this=0x6487a0,
    name=@0x7fff6c4022d0, args=@0x7fff6c402290,
    printErrors=<value optimized out>)
    at /tmp/Manta/Engine/Factory/Factory.cc:497
#24 0x00002ad63e6b9270 in Manta::Factory::readScene (this=0x6487a0,
spec=<value optimized out>) at /tmp/Manta/Engine/Factory/ Factory.cc:386
#25 0x000000000041424f in main (argc=<value optimized out>,
    argv=<value optimized out>) at /tmp/Manta/StandAlone/manta.cc:386
(gdb)

---

• [Manta] Seg fault in r2053 release build, Li-Ta Lo, 02/15/2008
  • Re: [Manta] Seg fault in r2053 release build, Solomon Boulos, 02/15/2008
    • Re: [Manta] Seg fault in r2053 release build, Austin Robison, 02/15/2008

---

Archive powered by MHonArc 2.6.16.