Main.cpp is failing with segementation fault

[Vinay-18]

Hello,

I ran Main.cpp file in the example section. But I am getting the following segmentation fault.

WARN 2022-06-16 15:50:23,732 [shard 0] seastar - Creation of perf_event based stall detector failed, falling back to posix timer: std::system_error (error system:13, perf_event_open() failed: Permission denied)
WARN 2022-06-16 15:50:23,734 [shard 0] seastar - Unable to set SCHED_FIFO scheduling policy for timer thread; latency impact possible. Try adding CAP_SYS_NICE
DEBUG 2022-06-16 15:50:23,734 [shard 0] seastar - generate_config dev_id: 0
INFO 2022-06-16 15:50:23,734 [shard 0] seastar - Created fair group io-queue-0, capacity rate 2147483:2147483, limit 12582912, rate 16777216 (factor 1.0), threshold 2000
INFO 2022-06-16 15:50:23,734 [shard 0] seastar - Created io group dev(0), length limit 4194304:4194304, rate 2147483647:2147483647
DEBUG 2022-06-16 15:50:23,734 [shard 0] seastar - allocate 0 IO group
INFO 2022-06-16 15:50:23,734 [shard 0] seastar - Created io queue dev(0) capacities: 512:2000/2000 1024:3000/3000 2048:5000/5000 4096:9000/9000 8192:17000/17000 16384:33000/33000 32768:65000/65000 65536:129000/129000 131072:257000/257000
DEBUG 2022-06-16 15:50:23,734 [shard 0] seastar - attached 0 queue to 0 IO group
TRACE 2022-06-16 15:50:23,778 [shard 4] exception - Throw exception at:
0x581bad 0x581e8a 0x582319 0x45a32c 0x45a5a8 /lib64/libstdc++.so.6+0xb50cb 0x428e74 0x4b69e3 0x4d608b 0x4d69a5 0x4d8e8f 0x492aad /lib64/libpthread.so.0+0x8179 /lib64/libc.so.6+0xfcdc2
WARN 2022-06-16 15:50:23,778 [shard 4] seastar - Creation of perf_event based stall detector failed, falling back to posix timer: std::system_error (error system:13, perf_event_open() failed: Permission denied)
TRACE 2022-06-16 15:50:23,779 [shard 2] exception - Throw exception at:
0x581bad 0x581e8a 0x582319 0x45a32c 0x45a5a8 /lib64/libstdc++.so.6+0xb50cb 0x428e74 0x4b69e3 0x4d608b 0x4d69a5 0x4d8e8f 0x492aad /lib64/libpthread.so.0+0x8179 /lib64/libc.so.6+0xfcdc2
WARN 2022-06-16 15:50:23,779 [shard 2] seastar - Creation of perf_event based stall detector failed, falling back to posix timer: std::system_error (error system:13, perf_event_open() failed: Permission denied)
TRACE 2022-06-16 15:50:23,780 [shard 5] exception - Throw exception at:
0x581bad 0x581e8a 0x582319 0x45a32c 0x45a5a8 /lib64/libstdc++.so.6+0xb50cb 0x428e74 0x4b69e3 0x4d608b 0x4d69a5 0x4d8e8f 0x492aad /lib64/libpthread.so.0+0x8179 /lib64/libc.so.6+0xfcdc2
WARN 2022-06-16 15:50:23,780 [shard 5] seastar - Creation of perf_event based stall detector failed, falling back to posix timer: std::system_error (error system:13, perf_event_open() failed: Permission denied)
DEBUG 2022-06-16 15:50:23,782 [shard 4] seastar - attached 4 queue to 0 IO group
DEBUG 2022-06-16 15:50:23,782 [shard 5] seastar - attached 5 queue to 0 IO group
DEBUG 2022-06-16 15:50:23,782 [shard 2] seastar - attached 2 queue to 0 IO group
TRACE 2022-06-16 15:50:23,784 [shard 7] exception - Throw exception at:
0x581bad 0x581e8a 0x582319 0x45a32c 0x45a5a8 /lib64/libstdc++.so.6+0xb50cb 0x428e74 0x4b69e3 0x4d608b 0x4d69a5 0x4d8e8f 0x492aad /lib64/libpthread.so.0+0x8179 /lib64/libc.so.6+0xfcdc2
WARN 2022-06-16 15:50:23,784 [shard 7] seastar - Creation of perf_event based stall detector failed, falling back to posix timer: std::system_error (error system:13, perf_event_open() failed: Permission denied)
TRACE 2022-06-16 15:50:23,784 [shard 6] exception - Throw exception at:
0x581bad 0x581e8a 0x582319 0x45a32c 0x45a5a8 /lib64/libstdc++.so.6+0xb50cb 0x428e74 0x4b69e3 0x4d608b 0x4d69a5 0x4d8e8f 0x492aad /lib64/libpthread.so.0+0x8179 /lib64/libc.so.6+0xfcdc2
WARN 2022-06-16 15:50:23,784 [shard 6] seastar - Creation of perf_event based stall detector failed, falling back to posix timer: std::system_error (error system:13, perf_event_open() failed: Permission denied)
TRACE 2022-06-16 15:50:23,785 [shard 3] exception - Throw exception at:
0x581bad 0x581e8a 0x582319 0x45a32c 0x45a5a8 /lib64/libstdc++.so.6+0xb50cb 0x428e74 0x4b69e3 0x4d608b 0x4d69a5 0x4d8e8f 0x492aad /lib64/libpthread.so.0+0x8179 /lib64/libc.so.6+0xfcdc2
WARN 2022-06-16 15:50:23,785 [shard 3] seastar - Creation of perf_event based stall detector failed, falling back to posix timer: std::system_error (error system:13, perf_event_open() failed: Permission denied)
DEBUG 2022-06-16 15:50:23,787 [shard 3] seastar - attached 3 queue to 0 IO group
DEBUG 2022-06-16 15:50:23,787 [shard 7] seastar - attached 7 queue to 0 IO group
DEBUG 2022-06-16 15:50:23,787 [shard 6] seastar - attached 6 queue to 0 IO group
TRACE 2022-06-16 15:50:23,788 [shard 1] exception - Throw exception at:
0x581bad 0x581e8a 0x582319 0x45a32c 0x45a5a8 /lib64/libstdc++.so.6+0xb50cb 0x428e74 0x4b69e3 0x4d608b 0x4d69a5 0x4d8e8f 0x492aad /lib64/libpthread.so.0+0x8179 /lib64/libc.so.6+0xfcdc2
WARN 2022-06-16 15:50:23,788 [shard 1] seastar - Creation of perf_event based stall detector failed, falling back to posix timer: std::system_error (error system:13, perf_event_open() failed: Permission denied)
DEBUG 2022-06-16 15:50:23,789 [shard 1] seastar - attached 1 queue to 0 IO group
Segmentation fault on shard 0.
Backtrace:
0x4e1ccb
0x4b2f23
0x4b3664
0x4b36d2
/lib64/libpthread.so.0+0x12c1f
/lib64/libCPVFramework.so+0x1cd9c7
/lib64/libCPVFramework.so+0xeb6f2
/lib64/libCPVFramework.so+0xe7aec
/lib64/libCPVFramework.so+0xe85bd
0x43eff3
0x43fe79
0x43fb5d
0x43f6c3
0x44d3d1
0x44de4d
0x4522ca
0x4aa48d
0x4aa7b0
0x4cf565
0x4cff69
0x450746
0x4511b7
0x4512b7
0x43f0bb
/lib64/libc.so.6+0x23492
0x43ec0d
./run.sh: line 13: 2084508 Segmentation fault ${BIN_PATH} --reactor-backend epoll

I ran the seastar-addr2line and decoded the backtrace. This is what I found.

[Backtrace #0]
addr2line: Dwarf Error: Can't find .debug_ranges section.
void seastar::backtraceseastar::backtrace_buffer::append_backtrace()::{lambda(seastar::frame)#1}(seastar::backtrace_buffer::append_backtrace()::{lambda(seastar::frame)#1}&&) at ??:?
seastar::print_with_backtrace(seastar::backtrace_buffer&, bool) at reactor.cc:?
seastar::print_with_backtrace(char const*, bool) [clone .constprop.0] at reactor.cc:?
seastar::install_oneshot_signal_handler<11, &seastar::sigsegv_action>()::{lambda(int, siginfo_t*, void*)#1}::_FUN(int, siginfo_t*, void*) at reactor.cc:?
.annobin_sigaction.c at sigaction.c:?
addr2line: Dwarf Error: Can't find .debug_ranges section.
seastar::reactor::add_timer(seastar::timerstd::chrono::_V2::steady_clock*) at crtstuff.c:?
seastar::future seastar::sleep<std::chrono::_V2::steady_clock, long, std::ratio<1l, 1l> >(std::chrono::duration<long, std::ratio<1l, 1l> >) at ??:?
auto cpv::Application::runForever()::{lambda(auto:1&, auto:2&)#1}::operator()<seastar::shared_ptrcpv::ApplicationData, seastar<std::atomic > >(seastar::shared_ptrcpv::ApplicationData&, seastar<std::atomic >&) const [clone .constprop.0] at Application.cpp:?
cpv::Application::runForever() at ??:?
main::{lambda()#1}::operator()() const at Main.cpp:?
seastar::future std::__invoke_impl<seastar::future, main::{lambda()#1}&>(std::__invoke_other, main::{lambda()#1}&) at Main.cpp:?
std::enable_if<is_invocable_r_v<seastar::future, main::{lambda()#1}&>, std::enable_if>::type std::__invoke_r<seastar::future, main::{lambda()#1}&>(seastar::future&&, (main::{lambda()#1}&)...) at Main.cpp:?
std::_Function_handler<seastar::future (), main::{lambda()#1}>::_M_invoke(std::_Any_data const&) at Main.cpp:?
addr2line: Dwarf Error: found dwarf version '36730', this reader only handles version 2, 3, 4 and 5 information.
std::_Function_handler<seastar::future (), seastar::app_template::run(int, char**, std::function<seastar::future ()>&&)::{lambda()#1}>::_M_invoke(std::_Any_data const&) at app-template.cc:?
std::_Function_handler<void (), seastar::app_template::run(int, char**, std::function<seastar::future ()>&&)::{lambda()#1}>::_M_invoke(std::_Any_data const&) at app-template.cc:?
seastar::continuation<seastar::internal::promise_base_with_type, std::function<void ()>, seastar::future::then_impl_nrvo<std::function<void ()>, seastar::future >(std::function<void ()>&&)::{lambda(seastar::internal::promise_base_with_type&&, std::function<void ()>&, seastar::future_stateseastar::internal::monostate&&)#1}, void>::run_and_dispose() at ??:?
seastar::reactor::run_tasks(seastar::reactor::task_queue&) at ??:?
seastar::reactor::run_some_tasks() [clone .part.0] at reactor.cc:?
addr2line: Dwarf Error: found dwarf version '41501', this reader only handles version 2, 3, 4 and 5 information.
seastar::reactor::do_run() at ??:?
seastar::reactor::run() at ??:?
seastar::app_template::run_deprecated(int, char**, std::function<void ()>&&) at ??:?
addr2line: Dwarf Error: found dwarf version '17417', this reader only handles version 2, 3, 4 and 5 information.
seastar::app_template::run(int, char**, std::function<seastar::future ()>&&) at ??:?
addr2line: Dwarf Error: found dwarf version '45312', this reader only handles version 2, 3, 4 and 5 information.
seastar::app_template::run(int, char**, std::function<seastar::future ()>&&) at ??:?
main at ??:?
__libc_start_main at ??:?
_start at ??:?

Any help is appreciated.