(gdb) thread apply all bt

Thread 65 (LWP 10589):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f87dba21e11 in background_thread_sleep (tsdn=<optimized out>, interval=2575000000, info=<optimized out>) at src/background_thread.c:255
#2  background_work_sleep_once (ind=<optimized out>, info=<optimized out>, tsdn=<optimized out>) at src/background_thread.c:307
#3  background_work (ind=<optimized out>, tsd=0x7f87189edf30) at src/background_thread.c:497
#4  background_thread_entry (ind_arg=<optimized out>) at src/background_thread.c:522
#5  0x00007f87dc50ddd5 in start_thread (arg=0x7f87189ff700) at pthread_create.c:307
#6  0x00007f87d9e55ead in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 64 (LWP 10407):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x00007f87dba21e11 in background_thread_sleep (tsdn=<optimized out>, interval=7525000000, info=<optimized out>) at src/background_thread.c:255
#2  background_work_sleep_once (ind=<optimized out>, info=<optimized out>, tsdn=<optimized out>) at src/background_thread.c:307
#3  background_work (ind=<optimized out>, tsd=0x7f871ddedf30) at src/background_thread.c:497
#4  background_thread_entry (ind_arg=<optimized out>) at src/background_thread.c:522
#5  0x00007f87dc50ddd5 in start_thread (arg=0x7f871ddff700) at pthread_create.c:307
#6  0x00007f87d9e55ead in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 63 (LWP 10313):
#0  0x00007f87dc514f63 in pread64 () at ../sysdeps/unix/syscall-template.S:81
#1  0x00000000009f1698 in magma::BasicFile::Read(long, unsigned long, char*, unsigned long*) () at /home/couchbase/jenkins/workspace/toy-unix-simple/magma/util/file/file_impl_linux.cc:146
#2  0x0000000000a5cc6a in magma::FileWithStats::Read(long, unsigned long, char*, unsigned long*) () at /home/couchbase/jenkins/workspace/toy-unix-simple/magma/util/file/file_impl_stats.cc:39
#3  0x00000000009f5a36 in magma::BufferedFileReader::Read(magma::File*, long, unsigned long, magma::Slice&, unsigned long&) () at /home/couchbase/jenkins/workspace/toy-unix-simple/magma/util/rw_file.cc:263
#4  0x0000000000a01ef4 in magma::ReadAndTransform(magma::File*, long, unsigned long, std::function<magma::Status (char const*, unsigned long, std::unique_ptr<char [], std::default_delete<char []> >&, unsigned long&)>, std::unique_ptr<char [], std::default_delete<char []> >&, unsigned long&, unsigned long&, magma::BufferedFileReader*) () at /home/couchbase/jenkins/workspace/toy-unix-simple/magma/util/block_cache.cc:39
Cannot access memory at address 0x7f871f7e3648
(gdb)