Hi, Haomai
AsyncMessenger uses threadpools to handle connection and some thread
unsafe function such as PK11_CreateContextBySymKey in libnss causes
the corruptions here?
Regards
Ning Yao
2017-03-28 17:36 GMT+08:00 闫创 <yanchuang1994@xxxxxxxxx>:
> Hi all,
>
> When I make a fio-rbd-test, it says segmentation fault. I reckon that
> there may be something wrong with the usage of libnss.
> Ceph version is 11.2.0 (f223e27eeb35991352ebc1f67423d4ebc252adb7)
> using AsyncMessenger.
> Is libnss3.so thread safe? or other thoughts to resolve this problem?
>
> Here is the output of #gdb /usr/bin/fio corefile
>
> ......
> warning: the debug information found in
> "/usr/lib/debug/usr/lib64//librados.so.2.0.0.debug" does not match
> "/lib64/librados.so.2" (CRC mismatch).
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib64/libthread_db.so.1".
> Core was generated by `fio rbd.fio --output 20G_rbd.log'.
> Program terminated with signal 11, Segmentation fault.
> #0 0x00007f799b7ebdbc in _int_malloc () from /lib64/libc.so.6
> Missing separate debuginfos, use: debuginfo-install fio-2.2.8-2.el7.x86_64
> (gdb) bt
> #0 0x00007f799b7ebdbc in _int_malloc () from /lib64/libc.so.6
> #1 0x00007f799b7ee26c in malloc () from /lib64/libc.so.6
> #2 0x00007f799a75a440 in PORT_Alloc_Util () from /lib64/libnssutil3.so
> #3 0x00007f799a758d32 in SECITEM_ArenaDupItem_Util () from
> /lib64/libnssutil3.so
> #4 0x00007f799a9a4238 in pk11_CreateNewContextInSlot () from /lib64/libnss3.so
> #5 0x00007f799a9a42df in PK11_CreateContextBySymKey () from /lib64/libnss3.so
> #6 0x00007f799cd78b7f in nss_aes_operation(unsigned long, unsigned
> long, PK11SymKeyStr*, SECItemStr*, ceph::buffer::list const&,
> ceph::buffer::list&, std::string*) () from /lib64/librados.so.2
> #7 0x00007f799cd7990a in
> CryptoAESKeyHandler::encrypt(ceph::buffer::list const&,
> ceph::buffer::list&, std::string*) const ()
> from /lib64/librados.so.2
> #8 0x00007f799ce2446f in
> CephxSessionHandler::_calc_signature(Message*, unsigned long*) () from
> /lib64/librados.so.2
> #9 0x00007f799ce24c0d in
> CephxSessionHandler::check_message_signature(Message*) () from
> /lib64/librados.so.2
> #10 0x00007f799ce1d3ef in AsyncConnection::process() () from
> /lib64/librados.so.2
> #11 0x00007f799cc827e9 in EventCenter::process_events(int) () from
> /lib64/librados.so.2
> #12 0x00007f799cc851ea in NetworkStack::add_thread(unsigned
> int)::{lambda()#1}::operator()() const () from /lib64/librados.so.2
> #13 0x00007f7999eaa220 in ?? () from /lib64/libstdc++.so.6
> #14 0x00007f799bd3bdc5 in start_thread () from /lib64/libpthread.so.0
> #15 0x00007f799b864ced in clone () from /lib64/libc.so.6
> (gdb)
>
> Regards,
> Chuang Yan.
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