Here is the backtrace from a ceph crash
ceph crash info '2024-08-20T16:07:39.319197Z_8bcdf3df-f9b5-451a-b971-16f8190ab351'
{
"assert_condition": "!p",
"assert_file": "/build/ceph-18.2.4/src/mds/MDCache.cc",
"assert_func": "void MDCache::add_inode(CInode*)",
"assert_line": 251,
"assert_msg": "/build/ceph-18.2.4/src/mds/MDCache.cc: In function 'void MDCache::add_inode(CInode*)' thread 7f0551248700 time 2024-08-20T12:07:39.313490-0400\n/build/ceph-18.2.4/src/mds/MDCache.cc: 251: FAILED ceph_assert(!p)\n",
"assert_thread_name": "ms_dispatch",
"backtrace": [
"/lib/x86_64-linux-gnu/libpthread.so.0(+0x14420) [0x7f055736a420]",
"gsignal()",
"abort()",
"(ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x182) [0x7f05576e12c9]",
"/usr/lib/ceph/libceph-common.so.2(+0x32d42b) [0x7f05576e142b]",
"(MDCache::add_inode(CInode*)+0x348) [0x55f4f007b7e8]",
"(Server::prepare_new_inode(boost::intrusive_ptr<MDRequestImpl>&, CDir*, inodeno_t, unsigned int, file_layout_t const*)+0x7b3) [0x55f4f00023a3]",
"(Server::handle_client_mkdir(boost::intrusive_ptr<MDRequestImpl>&)+0x1cd) [0x55f4f000546d]",
"(MDSContext::complete(int)+0x5f) [0x55f4f02b72cf]",
"(void finish_contexts<std::vector<MDSContext*, std::allocator<MDSContext*> > >(ceph::common::CephContext*, std::vector<MDSContext*, std::allocator<MDSContext*> >&, int)+0x90) [0x55f4eff5c730]",
"(MDSCacheObject::finish_waiting(unsigned long, int)+0x5c) [0x55f4f02c7dbc]",
"(Locker::eval_gather(SimpleLock*, bool, bool*, std::vector<MDSContext*, std::allocator<MDSContext*> >*)+0x12dc) [0x55f4f016fe2c]",
"(Locker::dispatch(boost::intrusive_ptr<Message const> const&)+0x16c) [0x55f4f0183b1c]",
"(MDSRank::_dispatch(boost::intrusive_ptr<Message const> const&, bool)+0x5a6) [0x55f4eff6b1a6]",
"(MDSRankDispatcher::ms_dispatch(boost::intrusive_ptr<Message const> const&)+0x5c) [0x55f4eff6b79c]",
"(MDSDaemon::ms_dispatch2(boost::intrusive_ptr<Message> const&)+0x1bf) [0x55f4eff5530f]",
"(Messenger::ms_deliver_dispatch(boost::intrusive_ptr<Message> const&)+0x468) [0x7f055795c448]",
"(DispatchQueue::entry()+0x657) [0x7f05579599e7]",
"(DispatchQueue::DispatchThread::entry()+0x11) [0x7f0557a20b11]",
"/lib/x86_64-linux-gnu/libpthread.so.0(+0x8609) [0x7f055735e609]",
"clone()"
],
"ceph_version": "18.2.4",
"crash_id": "2024-08-20T16:07:39.319197Z_8bcdf3df-f9b5-451a-b971-16f8190ab351",
"entity_name": "mds.mds0202",
"os_id": "ubuntu",
"os_name": "Ubuntu",
"os_version": "20.04.6 LTS (Focal Fossa)",
"os_version_id": "20.04",
"process_name": "ceph-mds",
"stack_sig": "e51039f21ed17c3220d021c313d5af656ee59d9ccfb3e6d6f991bcf245dbf000",
"timestamp": "2024-08-20T16:07:39.319197Z",
"utsname_hostname": "mds02",
"utsname_machine": "x86_64",
"utsname_release": "5.4.0-190-generic",
"utsname_sysname": "Linux",
"utsname_version": "#210-Ubuntu SMP Fri Jul 5 17:03:38 UTC 2024"
}
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