SUMMARY Trying to run callgrind on an application, and valgrind/callgrind dies after a bit, leaving a callgrind.out.1 of size 0. Note this has been reproduced for my case on 3.18.1 and 3.19.0 . Note this is a heavily loaded system, and in this case it is running on ubuntu 22.04 docker image. Note I couldn't figure out how to build callgrind with symbols, but if you let me know i can rerun. STEPS TO REPRODUCE 1. valgrind --tool=callgrind ./app.out OBSERVED RESULT [36mvc_1 |[0m _dl_find_object [36mvc_1 |[0m BB# 5330704013 [36mvc_1 |[0m [36mvc_1 |[0m Callgrind: threads.c:273 (vgCallgrind_post_signal): Assertion '*(vgCallgrind_current_fn_stack.top) == 0' failed. [36mvc_1 |[0m [36mvc_1 |[0m host stacktrace: [36mvc_1 |[0m ==1== at 0x580213DA: ??? (in /usr/libexec/valgrind/callgrind-amd64-linux) [36mvc_1 |[0m ==1== by 0x58021507: ??? (in /usr/libexec/valgrind/callgrind-amd64-linux) [36mvc_1 |[0m ==1== by 0x580216AB: ??? (in /usr/libexec/valgrind/callgrind-amd64-linux) [36mvc_1 |[0m ==1== by 0x5801EBC5: ??? (in /usr/libexec/valgrind/callgrind-amd64-linux) [36mvc_1 |[0m ==1== by 0x5800473D: ??? (in /usr/libexec/valgrind/callgrind-amd64-linux) [36mvc_1 |[0m ==1== by 0x58004BDB: ??? (in /usr/libexec/valgrind/callgrind-amd64-linux) [36mvc_1 |[0m ==1== by 0x58002C42: ??? (in /usr/libexec/valgrind/callgrind-amd64-linux) [36mvc_1 |[0m ==1== by 0x10036FC52B: ??? [36mvc_1 |[0m ==1== by 0x100F323F1F: ??? [36mvc_1 |[0m ==1== by 0x581D3FB5: ??? (in /usr/libexec/valgrind/callgrind-amd64-linux) [36mvc_1 |[0m ==1== by 0x100F323F07: ??? [36mvc_1 |[0m ==1== by 0x100F323F1F: ??? [36mvc_1 |[0m ==1== by 0x74: ??? [36mvc_1 |[0m ==1== by 0x201: ??? [36mvc_1 |[0m ==1== by 0x790DBCF: ??? [36mvc_1 |[0m ==1== by 0x581F1142: ??? (in /usr/libexec/valgrind/callgrind-amd64-linux) [36mvc_1 |[0m ==1== by 0x113AB: ??? [36mvc_1 |[0m [36mvc_1 |[0m sched status: [36mvc_1 |[0m running_tid=117 [36mvc_1 |[0m
Can you reduce this to a small example? Otherwise can you tell us more about the guest application? Without more information it's not likely that anyone will be able to reproduce the problem.
No answer, closing this as WAITINGFORINFO.
Also, just in case. Does you application run clean with memcheck? It could be that your app is corrupting the stack.