root@node2:/etc/ceph# ps -aux | grep ceph
root      295591  0.0  0.0  16404 11016 ?        Ss   15:28   0:00 /usr/bin/python2.7 /usr/bin/ceph-crash
root      303214  0.8  0.0 816904 67516 ?        Ssl  15:53   0:07 /usr/bin/ceph-osd -f --cluster ceph --id 24 --setuser ceph --setgroup ceph
root      304407  0.6  0.0 816908 66844 ?        Ssl  15:53   0:06 /usr/bin/ceph-osd -f --cluster ceph --id 25 --setuser ceph --setgroup ceph
root      305579  0.7  0.0 816908 66520 ?        Ssl  15:54   0:06 /usr/bin/ceph-osd -f --cluster ceph --id 26 --setuser ceph --setgroup ceph
root      306750  0.6  0.0 816904 66512 ?        Ssl  15:54   0:05 /usr/bin/ceph-osd -f --cluster ceph --id 27 --setuser ceph --setgroup ceph
root      307937  0.7  0.0 816904 66048 ?        Ssl  15:54   0:06 /usr/bin/ceph-osd -f --cluster ceph --id 28 --setuser ceph --setgroup ceph
root      309124  0.6  0.0 815888 65612 ?        Ssl  15:55   0:05 /usr/bin/ceph-osd -f --cluster ceph --id 29 --setuser ceph --setgroup ceph
root      310294  0.6  0.0 816904 65948 ?        Ssl  15:55   0:05 /usr/bin/ceph-osd -f --cluster ceph --id 30 --setuser ceph --setgroup ceph
root      311480  0.6  0.0 815880 65812 ?        Ssl  15:55   0:05 /usr/bin/ceph-osd -f --cluster ceph --id 31 --setuser ceph --setgroup ceph
root      312656  0.5  0.0 815884 65544 ?        Ssl  15:56   0:04 /usr/bin/ceph-osd -f --cluster ceph --id 32 --setuser ceph --setgroup ceph
root      313833  0.5  0.0 815888 64464 ?        Ssl  15:56   0:04 /usr/bin/ceph-osd -f --cluster ceph --id 33 --setuser ceph --setgroup ceph
root      315161  0.0  0.0  25408 20872 ?        S    15:56   0:00 /usr/bin/python2.7 /usr/sbin/ceph-volume --cluster ceph lvm create --bluestore --data /dev/nvme0n1p12
root      315454  0.0  0.0      0     0 ?        Z    15:56   0:00 [ceph-osd] <defunct>
root      315465  0.0  0.0 268712440 31792 ?     Ssl  15:56   0:00 /usr/bin/ceph-osd --cluster ceph --osd-objectstore bluestore --mkfs -i 34 --monmap /var/lib/ceph/osd/ceph-34/activate.monmap --keyfile - --osd-data /var/lib/ceph/osd/ceph-34/ --osd-uuid 781943ae-d925-4327-a662-c04600f6b2c5 --setuser ceph --setgroup ceph
root      315544  1.5  0.0 449008 72464 ?        Ssl  15:58   0:10 /usr/bin/ceph-mon -f --cluster ceph --id node2 --setuser ceph --setgroup ceph
root      315548  1.0  0.0 598080 269652 ?       Ssl  15:58   0:06 /usr/bin/ceph-mgr -f --cluster ceph --id node2 --setuser ceph --setgroup ceph
root      317646  200  0.0 269280460 92232 ?     Ssl  16:01  15:06 /usr/bin/ceph-osd -f --cluster ceph --id 35 --setuser ceph --setgroup ceph
root      320093  200  0.0 269278352 91108 ?     Ssl  16:03  12:23 /usr/bin/ceph-osd -f --cluster ceph --id 36 --setuser ceph --setgroup ceph
root      320655  0.1  0.0  25540 21124 ?        S    16:03   0:00 /usr/bin/python2.7 /usr/sbin/ceph-volume --cluster ceph lvm create --bluestore --data /dev/nvme1n1p4
root      320833  0.2  0.0 268712436 52244 ?     Sl   16:03   0:00 /usr/bin/ceph-osd --cluster ceph --osd-objectstore bluestore --mkfs -i 37 --monmap /var/lib/ceph/osd/ceph-37/activate.monmap --keyfile - --osd-data /var/lib/ceph/osd/ceph-37/ --osd-uuid 87514617-ce94-47ac-9156-1d8af227fbf9 --setuser ceph --setgroup ceph
root      320843  0.0  0.0 268712572 35272 ?     Ssl  16:03   0:00 /usr/bin/ceph-osd --cluster ceph --osd-objectstore bluestore --mkfs -i 37 --monmap /var/lib/ceph/osd/ceph-37/activate.monmap --keyfile - --osd-data /var/lib/ceph/osd/ceph-37/ --osd-uuid 87514617-ce94-47ac-9156-1d8af227fbf9 --setuser ceph --setgroup ceph
root      321792  199  0.0 269279436 90712 ?     Ssl  16:08   1:09 /usr/bin/ceph-osd -f --cluster ceph --id 38 --setuser ceph --setgroup ceph
root      322861  193  0.0 269277264 88852 ?     Ssl  16:09   0:28 /usr/bin/ceph-osd -f --cluster ceph --id 39 --setuser ceph --setgroup ceph
root      323436  6.6  0.0  25544 20816 ?        S    16:09   0:00 /usr/bin/python2.7 /usr/sbin/ceph-volume --cluster ceph lvm create --bluestore --data /dev/nvme1n1p7
root      323586  0.0  0.0 703388 41552 ?        Rl   16:09   0:00 /usr/bin/python2.7 /usr/bin/ceph --cluster ceph --name client.bootstrap-osd --keyring /var/lib/ceph/bootstrap-osd/ceph.keyring mon getmap -o /var/lib/ceph/osd/ceph-40/activate.monmap
root      323610  0.0  0.0   4376   724 pts/2    S+   16:09   0:00 grep --color=auto ceph
root@node2:/etc/ceph# gdb /usr/bin/ceph-osd -p 320833
GNU gdb (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "aarch64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/bin/ceph-osd...Reading symbols from /usr/lib/debug/.build-id/c1/798048d376faca23ada6b38996bb8f2e8530ba.debug...done.
done.
Attaching to program: /usr/bin/ceph-osd, process 320833
[New LWP 320836]
[New LWP 320837]
[New LWP 320838]
[New LWP 320844]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".
0x0000ffff8b636a48 in __libc_read (fd=fd@entry=113, buf=buf@entry=0xffffc05d30c8, nbytes=nbytes@entry=4) at ../sysdeps/unix/sysv/linux/read.c:27
27      ../sysdeps/unix/sysv/linux/read.c: No such file or directory.
(gdb) bt
#0  0x0000ffff8b636a48 in __libc_read (fd=fd@entry=113, buf=buf@entry=0xffffc05d30c8, nbytes=nbytes@entry=4) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x0000aaaacd2ad1a4 in read (__nbytes=4, __buf=0xffffc05d30c8, __fd=113) at /usr/include/aarch64-linux-gnu/bits/unistd.h:44
#2  safe_read (fd=113, buf=0xffffc05d30c8, count=count@entry=4) at ./src/common/safe_io.c:30
#3  0x0000aaaacd2ad21c in safe_read_exact (fd=<optimized out>, buf=<optimized out>, count=4) at ./src/common/safe_io.c:48
#4  0x0000aaaacc96fa40 in Preforker::parent_wait (this=0xffffc05d3768, err_msg="") at ./src/common/Preforker.h:82
#5  0x0000aaaacc949a68 in main (argc=<optimized out>, argv=<optimized out>) at ./src/ceph_osd.cc:203
(gdb) thread apply all bt

Thread 5 (Thread 0xffff8b0729f0 (LWP 320844)):
#0  0x0000ffff8b63322c in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0xaaaae731ce74) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0xaaaae731cdb8, cond=0xaaaae731ce48) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0xaaaae731ce48, mutex=0xaaaae731cdb8) at pthread_cond_wait.c:655
#3  0x0000ffff8b475f80 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/aarch64-linux-gnu/libstdc++.so.6
#4  0x0000aaaacd1911ac in ceph::logging::Log::entry (this=0xaaaae731cd80) at ./src/log/Log.cc:421
#5  0x0000ffff8b62d088 in start_thread (arg=0xffffc05d2fdf) at pthread_create.c:463
#6  0x0000ffff8b24b4ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78

Thread 4 (Thread 0xffff88ff59f0 (LWP 320838)):
#0  0x0000ffff8b636a48 in __libc_read (fd=<optimized out>, buf=0xffff88ff50e7, nbytes=1) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x0000aaaacd8395e8 in eal_thread_loop ()
#2  0x0000ffff8b62d088 in start_thread (arg=0xffff8a7f7b0f) at pthread_create.c:463
#3  0x0000ffff8b24b4ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78

Thread 3 (Thread 0xffff897f69f0 (LWP 320837)):
#0  0x0000ffff8b636a48 in __libc_read (fd=<optimized out>, buf=0xffff897f60e7, nbytes=1) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x0000aaaacd8395e8 in eal_thread_loop ()
#2  0x0000ffff8b62d088 in start_thread (arg=0xffff8a7f7b0f) at pthread_create.c:463
#3  0x0000ffff8b24b4ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78

Thread 2 (Thread 0xffff89ff79f0 (LWP 320836)):
#0  0x0000ffff8b24b600 in __GI_epoll_pwait (epfd=<optimized out>, events=0xffff89ff70f0, maxevents=<optimized out>, timeout=-1979748048, set=0x0)
    at ../sysdeps/unix/sysv/linux/epoll_pwait.c:42
#1  0x0000aaaacd840584 in eal_intr_thread_main ()
#2  0x0000ffff8b62d088 in start_thread (arg=0xffff8a7f7a9f) at pthread_create.c:463
#3  0x0000ffff8b24b4ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78

Thread 1 (Thread 0xffff8b0bf010 (LWP 320833)):
#0  0x0000ffff8b636a48 in __libc_read (fd=fd@entry=113, buf=buf@entry=0xffffc05d30c8, nbytes=nbytes@entry=4) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x0000aaaacd2ad1a4 in read (__nbytes=4, __buf=0xffffc05d30c8, __fd=113) at /usr/include/aarch64-linux-gnu/bits/unistd.h:44
#2  safe_read (fd=113, buf=0xffffc05d30c8, count=count@entry=4) at ./src/common/safe_io.c:30
#3  0x0000aaaacd2ad21c in safe_read_exact (fd=<optimized out>, buf=<optimized out>, count=4) at ./src/common/safe_io.c:48
#4  0x0000aaaacc96fa40 in Preforker::parent_wait (this=0xffffc05d3768, err_msg="") at ./src/common/Preforker.h:82
#5  0x0000aaaacc949a68 in main (argc=<optimized out>, argv=<optimized out>) at ./src/ceph_osd.cc:203







==============================================

root@node2:~# gdb /usr/bin/ceph-osd -p 320843
GNU gdb (Ubuntu 8.1-0ubuntu3) 8.1.0.20180409-git
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "aarch64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/bin/ceph-osd...Reading symbols from /usr/lib/debug/.build-id/c1/798048d376faca23ada6b38996bb8f2e8530ba.debug...done.
done.
Attaching to program: /usr/bin/ceph-osd, process 320843
[New LWP 320845]
[New LWP 320846]
[New LWP 320847]
[New LWP 320849]
[New LWP 320850]
[New LWP 320851]
[New LWP 320852]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/aarch64-linux-gnu/libthread_db.so.1".
0x0000ffff8b900aa0 in base::internal::SpinLockDelay(int volatile*, int, int) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
(gdb) bt
#0  0x0000ffff8b900aa0 in base::internal::SpinLockDelay(int volatile*, int, int) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#1  0x0000ffff8b900954 in SpinLock::SlowLock() () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#2  0x0000ffff8b8f0e10 in tcmalloc::CentralFreeList::RemoveRange(void**, void**, int) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#3  0x0000ffff8b8f3c10 in tcmalloc::ThreadCache::FetchFromCentralCache(unsigned long, unsigned long) ()
   from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#4  0x0000ffff8b9027c4 in tc_malloc () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#5  0x0000aaaaccfbfd24 in ceph::BackTrace::print (this=this@entry=0xffffc05ca140, out=...) at ./src/common/BackTrace.cc:40
#6  0x0000aaaaccfb5e64 in handle_fatal_signal (signum=11) at ./src/global/signal_handler.cc:169
#7  <signal handler called>
#8  0x0000ffff8b8f0950 in tcmalloc::CentralFreeList::FetchFromOneSpans(int, void**, void**) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#9  0x0000ffff8b8f0c54 in tcmalloc::CentralFreeList::FetchFromOneSpansSafe(int, void**, void**) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#10 0x0000ffff8b8f0d20 in tcmalloc::CentralFreeList::RemoveRange(void**, void**, int) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#11 0x0000ffff8b8f3c10 in tcmalloc::ThreadCache::FetchFromCentralCache(unsigned long, unsigned long) ()
   from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#12 0x0000ffff8b904d74 in tc_newarray () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#13 0x0000ffff8b4e8bf0 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::reserve(unsigned long) ()
   from /usr/lib/aarch64-linux-gnu/libstdc++.so.6
#14 0x0000aaaaccf6dae0 in boost::uuids::to_string[abi:cxx11](boost::uuids::uuid const&) (u=...)
    at ./obj-aarch64-linux-gnu/boost/include/boost/uuid/uuid_io.hpp:152
#15 uuid_d::print (s=0xffffc05d11c0 "\020\017wÕf", this=0xffffc05d10a0) at ./src/include/uuid.h:50
#16 operator<< (u=..., out=...) at ./src/include/uuid.h:76
#17 BlueFS::mkfs (this=0xaaaae7fc6000, osd_uuid=..., layout=...) at ./src/os/bluestore/BlueFS.cc:449
#18 0x0000aaaacce89dcc in BlueStore::_open_bluefs (this=this@entry=0xaaaae8770d00, create=create@entry=true) at ./src/os/bluestore/BlueStore.cc:5397
#19 0x0000aaaacce8a214 in BlueStore::_open_db (this=this@entry=0xaaaae8770d00, create=create@entry=true, to_repair_db=to_repair_db@entry=false,
    read_only=read_only@entry=false) at ./src/os/bluestore/BlueStore.cc:5607
#20 0x0000aaaaccebe700 in BlueStore::mkfs (this=0xaaaae8770d00) at ./src/os/bluestore/BlueStore.cc:6316
#21 0x0000aaaacc98b740 in OSD::mkfs (cct=0xaaaae73e8000, store=0xaaaae8770d00, fsid=..., whoami=37) at ./src/osd/OSD.cc:1962
#22 0x0000aaaacc94a9a0 in main (argc=<optimized out>, argv=<optimized out>) at /usr/include/c++/9/bits/char_traits.h:335
(gdb) thread apply all bt

Thread 8 (Thread 0xffff87ff39f0 (LWP 320852)):
#0  0x0000ffff8b63322c in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0xaaaae8762cc8)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0xaaaae8762c70, cond=0xaaaae8762ca0) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0xaaaae8762ca0, mutex=0xaaaae8762c70) at pthread_cond_wait.c:655
#3  0x0000ffff8b475f80 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/aarch64-linux-gnu/libstdc++.so.6
#4  0x0000aaaaccfa9124 in KernelDevice::_discard_thread (this=0xaaaae8762a80) at ./src/os/bluestore/KernelDevice.cc:627
#5  0x0000aaaaccfac158 in KernelDevice::DiscardThread::entry (this=<optimized out>) at ./src/os/bluestore/KernelDevice.h:74
#6  0x0000ffff8b62d088 in start_thread (arg=0xffffc05ceabf) at pthread_create.c:463
#7  0x0000ffff8b24b4ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78

Thread 7 (Thread 0xffff887f49f0 (LWP 320851)):
#0  0x0000ffff8b9506c0 in ?? () from /lib/aarch64-linux-gnu/libaio.so.1
#1  0x0000ffffc05cea20 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 6 (Thread 0xffff8a7f89f0 (LWP 320850)):
#0  0x0000ffff8b63322c in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0xaaaae8762948)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0xaaaae87628f0, cond=0xaaaae8762920) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0xaaaae8762920, mutex=0xaaaae87628f0) at pthread_cond_wait.c:655
#3  0x0000ffff8b475f80 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/aarch64-linux-gnu/libstdc++.so.6
#4  0x0000aaaaccfa9124 in KernelDevice::_discard_thread (this=0xaaaae8762700) at ./src/os/bluestore/KernelDevice.cc:627
#5  0x0000aaaaccfac158 in KernelDevice::DiscardThread::entry (this=<optimized out>) at ./src/os/bluestore/KernelDevice.h:74
#6  0x0000ffff8b62d088 in start_thread (arg=0xffffc05cf30f) at pthread_create.c:463
#7  0x0000ffff8b24b4ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78

Thread 5 (Thread 0xffff8b0729f0 (LWP 320849)):
#0  0x0000ffff8b9506c0 in ?? () from /lib/aarch64-linux-gnu/libaio.so.1
#1  0x0000ffffc05cf270 in ?? ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Thread 4 (Thread 0xffff89ff79f0 (LWP 320847)):
#0  0x0000ffff8b242048 in __GI___poll (fds=fds@entry=0xffff89ff7198, nfds=281473018478292, nfds@entry=2, timeout=timeout@entry=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:41
#1  0x0000aaaacd00fc00 in poll (__timeout=-1, __nfds=2, __fds=0xffff89ff7198) at /usr/include/aarch64-linux-gnu/bits/poll2.h:46
#2  AdminSocket::entry (this=0xaaaae7390160) at ./src/common/admin_socket.cc:240
#3  0x0000ffff8b47bed4 in ?? () from /usr/lib/aarch64-linux-gnu/libstdc++.so.6
---Type <return> to continue, or q <return> to quit---
#4  0x0000ffff8b62d088 in start_thread (arg=0xffffc05d2ecf) at pthread_create.c:463
#5  0x0000ffff8b24b4ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78

Thread 3 (Thread 0xffff897f69f0 (LWP 320846)):
#0  0x0000ffff8b6335d4 in futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0xffff897f61d8, expected=0, futex_word=0xaaaae7fe8858)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1  __pthread_cond_wait_common (abstime=0xffff897f61d8, mutex=0xaaaae7fe8800, cond=0xaaaae7fe8830) at pthread_cond_wait.c:539
#2  __pthread_cond_timedwait (cond=0xaaaae7fe8830, mutex=0xaaaae7fe8800, abstime=0xffff897f61d8) at pthread_cond_wait.c:667
#3  0x0000aaaacd028ca4 in __gthread_cond_timedwait (__abs_timeout=0xffff897f61d8, __mutex=<optimized out>, __cond=0xaaaae7fe8830)
    at /usr/include/aarch64-linux-gnu/c++/9/bits/gthr-default.h:872
#4  std::condition_variable::__wait_until_impl<std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=<synthetic pointer>...,
    __lock=..., this=0xaaaae7fe8830) at /usr/include/c++/9/condition_variable:188
#5  std::condition_variable::wait_until<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > (__atime=...,
    __lock=..., this=0xaaaae7fe8830) at /usr/include/c++/9/condition_variable:121
#6  std::condition_variable::wait_for<unsigned long, std::ratio<1l, 1000000000l> > (__rtime=<synthetic pointer>..., __lock=..., this=0xaaaae7fe8830)
    at /usr/include/c++/9/condition_variable:152
#7  CephContextServiceThread::entry (this=0xaaaae7fe87e0) at ./src/common/ceph_context.cc:206
#8  0x0000ffff8b62d088 in start_thread (arg=0xffffc05d2e6f) at pthread_create.c:463
#9  0x0000ffff8b24b4ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78

Thread 2 (Thread 0xffff88ff59f0 (LWP 320845)):
#0  0x0000ffff8b63322c in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0xaaaae731ce70)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0xaaaae731cdb8, cond=0xaaaae731ce48) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0xaaaae731ce48, mutex=0xaaaae731cdb8) at pthread_cond_wait.c:655
#3  0x0000ffff8b475f80 in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/aarch64-linux-gnu/libstdc++.so.6

#4  0x0000aaaacd1911ac in ceph::logging::Log::entry (this=0xaaaae731cd80) at ./src/log/Log.cc:421
#5  0x0000ffff8b62d088 in start_thread (arg=0xffffc05d2f4f) at pthread_create.c:463
#6  0x0000ffff8b24b4ec in thread_start () at ../sysdeps/unix/sysv/linux/aarch64/clone.S:78

Thread 1 (Thread 0xffff8b0bf010 (LWP 320843)):
#0  0x0000ffff8b900aa0 in base::internal::SpinLockDelay(int volatile*, int, int) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#1  0x0000ffff8b900954 in SpinLock::SlowLock() () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#2  0x0000ffff8b8f0e10 in tcmalloc::CentralFreeList::RemoveRange(void**, void**, int) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#3  0x0000ffff8b8f3c10 in tcmalloc::ThreadCache::FetchFromCentralCache(unsigned long, unsigned long) ()
   from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#4  0x0000ffff8b9027c4 in tc_malloc () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#5  0x0000aaaaccfbfd24 in ceph::BackTrace::print (this=this@entry=0xffffc05ca140, out=...) at ./src/common/BackTrace.cc:40
#6  0x0000aaaaccfb5e64 in handle_fatal_signal (signum=11) at ./src/global/signal_handler.cc:169
---Type <return> to continue, or q <return> to quit---
#7  <signal handler called>
#8  0x0000ffff8b8f0950 in tcmalloc::CentralFreeList::FetchFromOneSpans(int, void**, void**) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#9  0x0000ffff8b8f0c54 in tcmalloc::CentralFreeList::FetchFromOneSpansSafe(int, void**, void**) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#10 0x0000ffff8b8f0d20 in tcmalloc::CentralFreeList::RemoveRange(void**, void**, int) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#11 0x0000ffff8b8f3c10 in tcmalloc::ThreadCache::FetchFromCentralCache(unsigned long, unsigned long) ()
   from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#12 0x0000ffff8b904d74 in tc_newarray () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
#13 0x0000ffff8b4e8bf0 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::reserve(unsigned long) ()
   from /usr/lib/aarch64-linux-gnu/libstdc++.so.6
#14 0x0000aaaaccf6dae0 in boost::uuids::to_string[abi:cxx11](boost::uuids::uuid const&) (u=...)
    at ./obj-aarch64-linux-gnu/boost/include/boost/uuid/uuid_io.hpp:152
#15 uuid_d::print (s=0xffffc05d11c0 "\020\017wÕf", this=0xffffc05d10a0) at ./src/include/uuid.h:50
#16 operator<< (u=..., out=...) at ./src/include/uuid.h:76
#17 BlueFS::mkfs (this=0xaaaae7fc6000, osd_uuid=..., layout=...) at ./src/os/bluestore/BlueFS.cc:449
#18 0x0000aaaacce89dcc in BlueStore::_open_bluefs (this=this@entry=0xaaaae8770d00, create=create@entry=true) at ./src/os/bluestore/BlueStore.cc:5397
#19 0x0000aaaacce8a214 in BlueStore::_open_db (this=this@entry=0xaaaae8770d00, create=create@entry=true, to_repair_db=to_repair_db@entry=false,
    read_only=read_only@entry=false) at ./src/os/bluestore/BlueStore.cc:5607
#20 0x0000aaaaccebe700 in BlueStore::mkfs (this=0xaaaae8770d00) at ./src/os/bluestore/BlueStore.cc:6316
#21 0x0000aaaacc98b740 in OSD::mkfs (cct=0xaaaae73e8000, store=0xaaaae8770d00, fsid=..., whoami=37) at ./src/osd/OSD.cc:1962
#22 0x0000aaaacc94a9a0 in main (argc=<optimized out>, argv=<optimized out>) at /usr/include/c++/9/bits/char_traits.h:335
(gdb)
(gdb) c
Continuing.

Thread 1 "ceph-osd" received signal SIGINT, Interrupt.
0x0000ffff8b900aa0 in base::internal::SpinLockDelay(int volatile*, int, int) () from /usr/lib/aarch64-linux-gnu/libtcmalloc.so.4
(gdb) quit