Created attachment 129442 [details]
glib C file to reproduce this

SUMMARY

--17129-- WARNING: unhandled amd64-linux syscall: 315
==17129==    at 0xAF70839: syscall (syscall.S:38)
==17129==    by 0x5277261: g_system_thread_get_scheduler_settings (gthread-posix.c:1187)
==17129==    by 0x5255913: g_thread_pool_new (gthreadpool.c:608)
==17129==    by 0x12E09C: redis_restore (redis.c:1759)
==17129==    by 0x119E73: create_everything (main.c:861)
==17129==    by 0x119E73: main (main.c:885)
--17129-- You may be able to write your own handler.
--17129-- Read the file README_MISSING_SYSCALL_OR_IOCTL.
--17129-- Nevertheless we consider this a bug.  Please report
--17129-- it at http://valgrind.org/support/bug_reports.html.


STEPS TO REPRODUCE
1. Compile and run attached C program under valgrind


OBSERVED RESULT
Unhandled syscall

EXPECTED RESULT
No Unhandled syscall error

SOFTWARE/OS VERSIONS
Ubuntu 18.04.4 LTS \n \l
Valgrind 3.16.0

ADDITIONAL INFORMATION
-