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LCG-ROLLOUT  April 2007

LCG-ROLLOUT April 2007

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Subject:

Segmentation fault of workload_manager on LCG-RB

From:

Christoph Wissing <[log in to unmask]>

Reply-To:

LHC Computer Grid - Rollout <[log in to unmask]>

Date:

Mon, 30 Apr 2007 10:59:18 +0200

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (114 lines)

Dear *,

on one of our LCG-RBs we have the problem that the workload_manager
process keeps producing segmentation faults. It might be related to the
problems observed last week with crashing network server, but I do not
know.

Running the orkload_manager in gdb I end with:
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 37665712 (LWP 1808)]
0x08116029 in std::_Construct<classad::ExprTree*, classad::ExprTree*> ()

The RB is on the most recent update level of gLite/LCG. Three other RBs
at DESY with same software run fine. So it might be that a user found a
JDL that crashes the box. I put the backtrace for experts at the very
end of this mail.

Any help is welcome!

Best regards,
Christoph

The backtrace reads as follows:
(gdb) backtrace
#0  0x08116029 in std::_Construct<classad::ExprTree*,
#classad::ExprTree*> () 1  0x08115d80 in std::vector<classad::ExprTree*,
#std::allocator<classad::ExprTree*> >::push_back () 2  0x081a43ec in
#classad::ExprList::GetComponents () 3  0x00469333 in
#edg::workload::planning::plugin::doMatch ()
   from /opt/edg/lib/libedg_wl_classad_plugin.so
#4  0x081aa9f3 in classad::FunctionCall::_Evaluate ()
#5  0x081a54a6 in classad::ExprTree::Evaluate ()
#6  0x081b61b0 in classad::Operation::_Evaluate ()
#7  0x081a54a6 in classad::ExprTree::Evaluate ()
#8  0x081b6140 in classad::Operation::_Evaluate ()
#9  0x081a54a6 in classad::ExprTree::Evaluate ()
#10 0x081b6140 in classad::Operation::_Evaluate ()
#11 0x081a54a6 in classad::ExprTree::Evaluate ()
#12 0x0819da1e in classad::AttributeReference::_Evaluate ()
#13 0x081a54a6 in classad::ExprTree::Evaluate ()
#14 0x081a14e4 in classad::ClassAd::EvaluateAttr ()
#15 0x081a1b0d in classad::ClassAd::EvaluateAttrBool ()
#16 0x00ec3667 in edg::workload::common::utilities::match ()
   from /opt/edg/lib/libedg_wl_util.so.0
#17 0x00ec3702 in edg::workload::common::utilities::left_matches_right
#()
   from /opt/edg/lib/libedg_wl_util.so.0
#18 0x00d54cad in
#edg::workload::planning::broker::matchmaking::matchmakerGlueIm---Type
#<return> to continue, or q <return> to quit---
pl::checkRequirement () from
/opt/edg/lib/libedg_wl_helper_broker_prefetch.so.0
#19 0x00d39fd8 in
#edg::workload::planning::broker::matchmaking::MatchMaker<edg::workload
#::planning::broker::matchmaking::matchmakerGlueImpl>::checkRequirement
    () from /opt/edg/lib/libedg_wl_helper_broker_prefetch.so.0
#20 0x00d3efd1 in
#edg::workload::planning::broker::RBSimpleImpl::findSuitableCEs () from
#/opt/edg/lib/libedg_wl_helper_broker_prefetch.so.0 21 0x00d34ec4 in
#edg::workload::planning::broker::ResourceBroker::findSuitableCEs ()
#from /opt/edg/lib/libedg_wl_helper_broker_prefetch.so.0 22 0x00d2a517
#in edg::workload::planning::broker::(anonymous namespace)::f_resolve_mm
#() from /opt/edg/lib/libedg_wl_helper_broker_prefetch.so.0 23
#0x00d2cbd8 in edg::workload::planning::broker::Helper::resolve ()
   from /opt/edg/lib/libedg_wl_helper_broker_prefetch.so.0
#24 0x001d4d41 in edg::workload::planning::helper::Helper::resolve ()
   from /opt/edg/lib/libedg_wl_helper.so.0
#25 0x001dfef6 in
#edg::workload::planning::helper::RequestStateMachine::next_step () from
#/opt/edg/lib/libedg_wl_helper.so.0 26 0x001de5c0 in
#edg::workload::planning::helper::Request::Impl::resolve ()
   from /opt/edg/lib/libedg_wl_helper.so.0
#27 0x001debee in edg::workload::planning::helper::Request::resolve ()
   from /opt/edg/lib/libedg_wl_helper.so.0
#28 0x00f978f1 in
#edg::workload::planning::manager::RequestPlanningPolicy::Plan
    () from /opt/edg/lib/libedg_wl_manager_server.so.0
#29 0x00f80a61 in
#edg::workload::planning::manager::WMReal<edg::workload::planni---Type
#<return> to continue, or q <return> to quit---
ng::manager::RequestPlanningPolicy,
edg::workload::planning::manager::JCDeliveryPolicy,
edg::workload::planning::manager::JCCancellingPolicy>::submit ()
   from /opt/edg/lib/libedg_wl_manager_server.so.0
#30 0x00c9592d in
#edg::workload::planning::manager::WorkloadManager::submit ()
   from /opt/edg/lib/libedg_wl_manager_common.so.0
#31 0x00f7aae1 in
#edg::workload::planning::manager::RequestHandler::Impl::run
    () from /opt/edg/lib/libedg_wl_manager_server.so.0
#32 0x00f7c938 in edg::workload::planning::manager::RequestHandler::run
#()
   from /opt/edg/lib/libedg_wl_manager_server.so.0
#33 0x0810ca07 in
#edg::workload::common::task::ReaderFunctor<std::pair<boost::function0<
#void, boost::empty_function_policy, boost::empty_function_mixin,
#std::allocator<boost::function_base> >,
#boost::shared_ptr<classad::ClassAd> > >::operator() () 34 0x0810c687 in
#boost::detail::function::void_function_obj_invoker0<edg::workload::com
#mon::task::ReaderFunctor<std::pair<boost::function0<void,
#boost::empty_function_policy, boost::empty_function_mixin,
#std::allocator<boost::function_base> >,
#boost::shared_ptr<classad::ClassAd> > >, void>::invoke () 35 0x08214631
#in boost::thread_group::join_all () 36 0x0042fdd8 in start_thread ()
#from /lib/tls/libpthread.so.0 37 0x007a8d2a in clone () from
#/lib/tls/libc.so.6

-- 
+-----------------------------------+
| Christoph Wissing       DESY - IT |
| E-Mail: [log in to unmask] |
| Phone:  +49(0)40/8998-4122        |
+-----------------------------------+

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