PhotonLibOS icon indicating copy to clipboard operation
PhotonLibOS copied to clipboard

Published 20 hours ago • verified publisher icon alibaba

simple in examples crashed

Open dreamofboy opened this issue 1 year ago • 9 comments

OS: CentOS Linux release 7.9.2009 (Core) GCC: 11.2.1 20220127 (Red Hat 11.2.1-9) (GCC) Curl: 7.85.0

I rebuilt the curl source code and make install because it complained the error as below when I built PhotonLibOS (even libcurl-devel was installed). ‘CURLMOPT_MAX_TOTAL_CONNECTIONS’ was not declared in this scope

Core was generated by `./simple'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x000000000040356c in run_socket_server(photon::net::ISocketServer*, photon::fs::IFile*, AlignedAlloc&, photon::std::condition_variable&, photon::std::mutex&, bool&)::{lambda(photon::net::ISocketStream*)#1}::operator()(photon::net::ISocketStream*) const () (gdb) bt #0 0x000000000040356c in run_socket_server(photon::net::ISocketServer*, photon::fs::IFile*, AlignedAlloc&, photon::std::condition_variable&, photon::std::mutex&, bool&)::{lambda(photon::net::ISocketStream*)#1}::operator()(photon::net::ISocketStream*) const () #1 0x00007fe497f61681 in photon::net::KernelSocketServer::handler(Delegate<int, photon::net::ISocketStream*>, photon::net::ISocketStream*) () from /test/PhotonLibOS-0.3.1/examples/simple/libphoton.so #2 0x00007fe497f61597 in photon::ThreadContext11<void ()(Delegate<int, photon::net::ISocketStream>, photon::net::ISocketStream*)>::stub(void*) () from /test/PhotonLibOS-0.3.1/examples/simple/libphoton.so #3 0x00007fe497f71cbc in photon::thread_stub() () from /test/PhotonLibOS-0.3.1/examples/simple/libphoton.so #4 0x0000000000000000 in ?? ()

dreamofboy avatar Oct 08 '22 08:10 dreamofboy

Did you build with debug mode? Because I didn't find the line number.

Or could you try lower gcc version such as devtoolset 7 or 8?

beef9999 avatar Oct 08 '22 08:10 beef9999

o

I just tried in CentOS 8 with GCC 8.5.0. All the build errors didn't appear. No need to build curl source code. All follow the guide in readme. I copied simple.cpp to the output directory and build simple.cpp with the command: g++ simple.cpp -o simple -L/test/PhotonLibOS-0.3.1/build/output -lphoton -I/test/PhotonLibOS-0.3.1/include

But when I run simple, it crashed again.

[root@d70e633a75f4 output]# ./simple 2022/10/08 17:05:02|INFO |th=00000000023B3FB0|/test/PhotonLibOS-0.3.1/io/epoll.cpp:288|new_epoll_engine:Init event engine: epoll 2022/10/08 17:05:02|INFO |th=00007F7A2400AB00|simple.cpp:167|run_socket_server:Server is listening for port 9527 ... 2022/10/08 17:05:02|INFO |th=00007F7A238032C0|simple.cpp:86|operator():Start to watch message Segmentation fault (core dumped)

[New LWP 1298] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `./simple'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00000000004028b0 in run_socket_server(photon::net::ISocketServer*, photon::fs::IFile*, AlignedAlloc&, photon::std::condition_variable&, photon::std::mutex&, bool&)::{lambda(photon::net::ISocketStream*)#1}::operator()(photon::net::ISocketStream*) const () Missing separate debuginfos, use: yum debuginfo-install glibc-2.28-164.el8.x86_64 keyutils-libs-1.5.10-9.el8.x86_64 krb5-libs-1.18.2-14.el8.x86_64 libaio-0.3.112-1.el8.x86_64 libcom_err-1.45.6-2.el8.x86_64 libcurl-minimal-7.61.1-22.el8.x86_64 libgcc-8.5.0-4.el8_5.x86_64 libnghttp2-1.33.0-3.el8_2.1.x86_64 libselinux-2.9-5.el8.x86_64 libstdc++-8.5.0-4.el8_5.x86_64 openssl-libs-1.1.1k-5.el8_5.x86_64 pcre2-10.32-2.el8.x86_64 zlib-1.2.11-17.el8.x86_64 (gdb) bt #0 0x00000000004028b0 in run_socket_server(photon::net::ISocketServer*, photon::fs::IFile*, AlignedAlloc&, photon::std::condition_variable&, photon::std::mutex&, bool&)::{lambda(photon::net::ISocketStream*)#1}::operator()(photon::net::ISocketStream*) const () #1 0x00007f7a288ef2d1 in photon::net::KernelSocketServer::handler(Delegate<int, photon::net::ISocketStream*>, photon::net::ISocketStream*) () from /test/PhotonLibOS-0.3.1/build/output/libphoton.so #2 0x00007f7a288f0336 in photon::ThreadContext11<void ()(Delegate<int, photon::net::ISocketStream>, photon::net::ISocketStream*)>::stub(void*) () from /test/PhotonLibOS-0.3.1/build/output/libphoton.so #3 0x00007f7a2890146c in photon::thread_stub() () from /test/PhotonLibOS-0.3.1/build/output/libphoton.so #4 0x0000000000000000 in ?? ()

dreamofboy avatar Oct 08 '22 09:10 dreamofboy

https://github.com/alibaba/PhotonLibOS#3-testing

Note the examples are also built from testing

cmake -D BUILD_TESTING=1 -D ENABLE_SASL=1 -D ENABLE_FUSE=1 -D CMAKE_BUILD_TYPE=Debug ..
make -j

This command will build example code

beef9999 avatar Oct 08 '22 09:10 beef9999

d will build example code

OS: CentOS Linux release 8.4.2105 Kernel: Linux d70e633a75f4 5.10.102.1-microsoft-standard-WSL2 GCC: 8.5.0 20210514 (Red Hat 8.5.0-4) cmake: version 3.20.2

Yes, I built with the commands after installed some dependencies. image

It still crashed with different signature as below:

[New LWP 2695]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `./simple-example'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x000000000040aa9e in Delegate<int, IOAlloc::RangeSize, void**>::fire (this=0x0, args#0=..., args#1=@0x7f09900fac98: 0x7f09900fac90)
    at /test/PhotonLibOS-0.3.1/include/photon/common/callback.h:118
118             return _func ? _func(_obj, args...) : R();
Missing separate debuginfos, use: yum debuginfo-install glibc-2.28-164.el8.x86_64 keyutils-libs-1.5.10-9.el8.x86_64 krb5-libs-1.18.2-14.el8.x86_64 libaio-0.3.112-1.el8.x86_64 libcom_err-1.45.6-2.el8.x86_64 libcurl-minimal-7.61.1-22.el8.x86_64 libgcc-8.5.0-4.el8_5.x86_64 libnghttp2-1.33.0-3.el8_2.1.x86_64 libselinux-2.9-5.el8.x86_64 libstdc++-8.5.0-4.el8_5.x86_64 openssl-libs-1.1.1k-5.el8_5.x86_64 pcre2-10.32-2.el8.x86_64 zlib-1.2.11-17.el8.x86_64
(gdb) bt
#0  0x000000000040aa9e in Delegate<int, IOAlloc::RangeSize, void**>::fire (this=0x0, args#0=..., args#1=@0x7f09900fac98: 0x7f09900fac90)
    at /test/PhotonLibOS-0.3.1/include/photon/common/callback.h:118
#1  0x000000000040a4fb in Delegate<int, IOAlloc::RangeSize, void**>::operator() (this=0x0, args#0=..., args#1=@0x7f09900fac98: 0x7f09900fac90)
    at /test/PhotonLibOS-0.3.1/include/photon/common/callback.h:115
#2  0x0000000000409496 in IOAlloc::alloc (this=0x0, size=1024) at /test/PhotonLibOS-0.3.1/include/photon/common/io-alloc.h:47
#3  0x0000000000406731 in <lambda(photon::net::ISocketStream*)>::operator()(photon::net::ISocketStream *) const (__closure=0x7f09919138e0,
    arg=0x1bc3270) at /test/PhotonLibOS-0.3.1/examples/simple/simple.cpp:131
#4  0x00007f09966649ef in Delegate<int, photon::net::ISocketStream*>::fire (this=0x7f09900fb110, args#0=@0x7f09900fb108: 0x1bc3270)
    at /test/PhotonLibOS-0.3.1/include/photon/common/callback.h:118
#5  0x00007f0996662b61 in Delegate<int, photon::net::ISocketStream*>::operator() (this=0x7f09900fb110, args#0=@0x7f09900fb108: 0x1bc3270)
    at /test/PhotonLibOS-0.3.1/include/photon/common/callback.h:115
#6  0x00007f099665f6b5 in photon::net::KernelSocketServer::handler (m_handler=..., sess=0x1bc3270)
    at /test/PhotonLibOS-0.3.1/net/kernel_socket.cpp:444
#7  0x00007f09966663bc in tuple_assistance::apply_impl<void (*&)(Delegate<int, photon::net::ISocketStream*>, photon::net::ISocketStream*), std::tuple<Delegate<int, photon::net::ISocketStream*>, photon::net::ISocketStream*>&, 0, 1> (
    f=@0x7f09900fb1c0: 0x7f099665f684 <photon::net::KernelSocketServer::handler(Delegate<int, photon::net::ISocketStream*>, photon::net::ISocketStream*)>, t=std::tuple containing = {...}) at /test/PhotonLibOS-0.3.1/include/photon/common/tuple-assistance.h:81
#8  0x00007f09966663fd in tuple_assistance::apply<void (*&)(Delegate<int, photon::net::ISocketStream*>, photon::net::ISocketStream*), std::tuple<Delegate<int, photon::net::ISocketStream*>, photon::net::ISocketStream*>&> (
    f=@0x7f09900fb1c0: 0x7f099665f684 <photon::net::KernelSocketServer::handler(Delegate<int, photon::net::ISocketStream*>, photon::net::ISocketStream*)>, t=std::tuple containing = {...}) at /test/PhotonLibOS-0.3.1/include/photon/common/tuple-assistance.h:88
#9  0x00007f0996666462 in photon::ThreadContext11__<void (*)(Delegate<int, photon::net::ISocketStream*>, photon::net::ISocketStream*)>::stub11 (
    args=0x7f0990905940) at /test/PhotonLibOS-0.3.1/include/photon/thread/thread11.h:58
#10 0x00007f0996665e3f in photon::ThreadContext11<void (*)(Delegate<int, photon::net::ISocketStream*>, photon::net::ISocketStream*)>::stub (
    args=0x7f0990905940) at /test/PhotonLibOS-0.3.1/include/photon/thread/thread11.h:76
#11 0x00007f09966961e1 in photon::thread::go (this=0x7f09900fb280) at /test/PhotonLibOS-0.3.1/thread/thread.cpp:142
#12 0x00007f099668fa9b in photon::thread_stub () at /test/PhotonLibOS-0.3.1/thread/thread.cpp:408
#13 0x0000000000000000 in ?? ()

dreamofboy avatar Oct 08 '22 09:10 dreamofboy

That's very strange. CentOS 8 is a very basic platform to run Photon. Here is my suggestion:

  1. I provide a temporary cloud server (CentOS 8) for you with public network access, and you log in that to demonstrate the issue.
  2. You provide one, and I'll login and do the debug

beef9999 avatar Oct 08 '22 09:10 beef9999

Thanks. It would be great if you can provide one. I have no cloud server yet. I'm running the build in my docker desktop.

dreamofboy avatar Oct 08 '22 09:10 dreamofboy

email you public key to me?

beef9999 avatar Oct 08 '22 09:10 beef9999

OK.

dreamofboy avatar Oct 08 '22 09:10 dreamofboy

Thanks @beef9999

I just verified the build and running on your cloud server. It works well. So the issue must be due to the difference between my container and your cloud server.

OS: CentOS 8.4 vs CentOS 8.5 Kernel: 5.10.102.1-microsoft-standard-WSL2 vs 4.18.0-348.7.1.el8_5.x86_64 GCC: same Cmake: same Docker Desktop vs Alicloud server

dreamofboy avatar Oct 08 '22 12:10 dreamofboy