[New LWP 25601] [New LWP 25602] [New LWP 25603] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 Thread 4 (Thread 0x7ff0dc331700 (LWP 25603)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x00007ff0e76d327e in RTSemEventWait () from /usr/lib/virtualbox/VBoxRT.so #2 0x00007ff0dcf1fa0a in ?? () from /usr/lib/virtualbox/components/VBoxC.so #3 0x00007ff0e763fa3c in ?? () from /usr/lib/virtualbox/VBoxRT.so #4 0x00007ff0e76d077a in ?? () from /usr/lib/virtualbox/VBoxRT.so #5 0x00007ff0e79d0494 in start_thread (arg=0x7ff0dc331700) at pthread_create.c:333 #6 0x00007ff0e698eaff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97 Thread 3 (Thread 0x7ff0ddc49700 (LWP 25602)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185 #1 0x00007ff0e729ccfb in VBoxNsprPR_WaitCondVar () from /usr/lib/virtualbox/VBoxXPCOM.so #2 0x00007ff0e729cf3b in VBoxNsprPR_Wait () from /usr/lib/virtualbox/VBoxXPCOM.so #3 0x00007ff0de51df51 in ?? () from /usr/lib/virtualbox/components/VBoxXPCOMIPCC.so #4 0x00007ff0e72717fd in ?? () from /usr/lib/virtualbox/VBoxXPCOM.so #5 0x00007ff0e729d9d7 in ?? () from /usr/lib/virtualbox/VBoxXPCOM.so #6 0x00007ff0e763fa3c in ?? () from /usr/lib/virtualbox/VBoxRT.so #7 0x00007ff0e76d077a in ?? () from /usr/lib/virtualbox/VBoxRT.so #8 0x00007ff0e79d0494 in start_thread (arg=0x7ff0ddc49700) at pthread_create.c:333 #9 0x00007ff0e698eaff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97 Thread 2 (Thread 0x7ff0ddcca700 (LWP 25601)): #0 0x00007ff0e69856ad in poll () at ../sysdeps/unix/syscall-template.S:84 #1 0x00007ff0e729a134 in ?? () from /usr/lib/virtualbox/VBoxXPCOM.so #2 0x00007ff0e729bb8f in VBoxNsprPR_Poll () from /usr/lib/virtualbox/VBoxXPCOM.so #3 0x00007ff0de520b2a in ?? () from /usr/lib/virtualbox/components/VBoxXPCOMIPCC.so #4 0x00007ff0e729d9d7 in ?? () from /usr/lib/virtualbox/VBoxXPCOM.so #5 0x00007ff0e763fa3c in ?? () from /usr/lib/virtualbox/VBoxRT.so #6 0x00007ff0e76d077a in ?? () from /usr/lib/virtualbox/VBoxRT.so #7 0x00007ff0e79d0494 in start_thread (arg=0x7ff0ddcca700) at pthread_create.c:333 #8 0x00007ff0e698eaff in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97 Thread 1 (Thread 0x7ff0e8037680 (LWP 25593)): #0 pthread_cond_timedwait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:225 #1 0x00007ff0e729c881 in ?? () from /usr/lib/virtualbox/VBoxXPCOM.so #2 0x00007ff0e729cc9e in VBoxNsprPR_WaitCondVar () from /usr/lib/virtualbox/VBoxXPCOM.so #3 0x00007ff0e729cf3b in VBoxNsprPR_Wait () from /usr/lib/virtualbox/VBoxXPCOM.so #4 0x00007ff0de514bbb in ?? () from /usr/lib/virtualbox/components/VBoxXPCOMIPCC.so #5 0x00007ff0de51589c in ?? () from /usr/lib/virtualbox/components/VBoxXPCOMIPCC.so #6 0x00007ff0de51bac2 in ?? () from /usr/lib/virtualbox/components/VBoxXPCOMIPCC.so #7 0x00007ff0e727d96e in ?? () from /usr/lib/virtualbox/VBoxXPCOM.so #8 0x00007ff0e727cee5 in ?? () from /usr/lib/virtualbox/VBoxXPCOM.so #9 0x00005633362d3e60 in ?? () #10 0x0000000000000064 in ?? () #11 0x0000000000000000 in ?? ()