[BUG]: Resque deadlocked from ddtrace before processing jobs #4967
Description
Tracer Version(s)
2.21.0
Ruby Version(s)
ruby 3.3.8 (2025-04-09 revision b200bad6cd) [x86_64-linux-musl]
Relevant Library and Version(s)
No response
Bug Report
I believe this is connected to #3015 (and #3815).
Prior to 3.3.5, when we were on 3.2.6, we were experiencing the exact same issue described in #3015. This comment recommended upgrading, so we did this week. However, we've caught a different issue twice (once on 3.2.6, once on 3.3.8) where we appear to get stuck and deadlocked immediately after forking. Thus, I believe the underlying issue is the same, but it's a different symptom. Also noting that we are on Alpine and musl, different from Ubuntu and glibc in #3015.
Originally, we didn't care too much about the deadlocks because the work was done and the our workers got stuck before despawning. This new issue has lead to active incidents because we get stuck before executing any work.
I'm not as skilled with gdb as the creator of #3015 but I did manage to grab this:
[New LWP 56226]
__syscall_cp_c (nr=202, u=140273171066624, v=128, w=-2147483647, x=0, y=0, z=0) at ./arch/x86_64/syscall_arch.h:61
warning: 61 ./arch/x86_64/syscall_arch.h: No such file or directory
Thread 2 (LWP 56226 "ruby"):
#0 __cp_end () at src/thread/x86_64/syscall_cp.s:29
#1 0x00007f93e4b5461d in __syscall_cp_c (nr=281, u=<optimized out>, v=<optimized out>, w=<optimized out>, x=<optimized out>, y=<optimized out>, z=8) at src/thread/pthread_cancel.c:33
#2 0x00007f93e4b192b7 in epoll_pwait (fd=4, ev=ev@entry=0x7f93e4886f9c <timer_th+28>, cnt=cnt@entry=16, to=to@entry=-1, sigs=sigs@entry=0x0) at src/linux/epoll.c:28
#3 0x00007f93e4b19302 in epoll_wait (fd=<optimized out>, ev=ev@entry=0x7f93e4886f9c <timer_th+28>, cnt=cnt@entry=16, to=to@entry=-1) at src/linux/epoll.c:37
#4 0x00007f93e45424e5 in event_wait (vm=0x7f93e3a23000) at /usr/src/ruby/thread_pthread.c:2919
#5 timer_thread_polling (vm=0x7f93e3a23000) at /usr/src/ruby/thread_pthread_mn.c:874
#6 timer_thread_func (ptr=0x7f93e3a23000) at /usr/src/ruby/thread_pthread.c:3046
#7 0x00007f93e4b5534f in start (p=0x7f939ab7eeb0) at src/thread/pthread_create.c:207
#8 0x00007f93e4b57965 in __clone () at src/thread/x86_64/clone.s:22
Backtrace stopped: frame did not save the PC
Thread 1 (LWP 56224 "ruby"):
#0 __syscall_cp_c (nr=202, u=140273171066624, v=128, w=-2147483647, x=0, y=0, z=0) at ./arch/x86_64/syscall_arch.h:61
#1 0x00007f93e4b53b4f in __futex4_cp (to=<optimized out>, val=-2147483647, op=128, addr=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>) at src/thread/__timedwait.c:24
#2 __timedwait_cp (addr=addr@entry=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, val=val@entry=-2147483647, clk=clk@entry=0, at=at@entry=0x0, priv=priv@entry=128) at src/thread/__timedwait.c:52
#3 0x00007f93e4b53c1c in __timedwait (addr=addr@entry=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, val=-2147483647, clk=clk@entry=0, at=at@entry=0x0, priv=128) at src/thread/__timedwait.c:68
#4 0x00007f93e4b569a0 in __pthread_rwlock_timedwrlock (at=<optimized out>, rw=<optimized out>) at src/thread/pthread_rwlock_timedwrlock.c:18
#5 __pthread_rwlock_timedwrlock (rw=rw@entry=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, at=at@entry=0x0) at src/thread/pthread_rwlock_timedwrlock.c:3
#6 0x00007f93e4b56a75 in __pthread_rwlock_wrlock (rw=rw@entry=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>) at src/thread/pthread_rwlock_wrlock.c:5
#7 0x00007f93e4540f48 in rb_internal_thread_remove_event_hook (hook=0x7f939f600020) at /usr/src/ruby/thread_pthread.c:3367
#8 0x00007f93a70e0b6b in disable_tracepoints (state=0x7f9396150f80) at collectors_cpu_and_wall_time_worker.c:1236
#9 _native_reset_after_fork (self=<optimized out>, instance=<optimized out>) at collectors_cpu_and_wall_time_worker.c:985
#10 0x00007f93e45820d9 in vm_call_cfunc_with_frame_ (stack_bottom=<optimized out>, argv=<optimized out>, argc=<optimized out>, calling=<optimized out>, reg_cfp=<optimized out>, ec=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3495
#11 vm_call_cfunc_with_frame (calling=<optimized out>, reg_cfp=<optimized out>, ec=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3523
#12 vm_call_cfunc_other (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b53f48, calling=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3549
#13 0x00007f93e45937a9 in vm_sendish (method_explorer=<optimized out>, block_handler=<optimized out>, cd=<optimized out>, reg_cfp=<optimized out>, ec=<optimized out>) at /usr/src/ruby/vm_callinfo.h:403
#14 vm_exec_core (ec=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, ec@entry=0x7f93e3a3e550) at /usr/src/ruby/insns.def:834
#15 0x00007f93e4599799 in rb_vm_exec (ec=0x7f93e3a3e550) at vm.c:2495
#16 0x00007f93e459f06e in invoke_block (captured=<optimized out>, opt_pc=<optimized out>, type=<optimized out>, cref=0x0, self=<optimized out>, iseq=0x7f93a79179f8, ec=<optimized out>) at vm.c:1518
#17 0x00007f93e459f3de in rb_vm_invoke_proc (ec=ec@entry=0x7f93e3a3e550, proc=<optimized out>, argc=<optimized out>, argv=argv@entry=0x7ffd3548b820, kw_splat=<optimized out>, passed_block_handler=<optimized out>) at vm.c:1737
#18 0x00007f93e459f6d3 in vm_call0_body (ec=ec@entry=0x7f93e3a3e550, calling=calling@entry=0x7ffd3548b710, argv=0x7ffd3548b820) at /usr/src/ruby/vm_eval.c:297
#19 0x00007f93e45a02ea in vm_call0_cc (ec=0x7f93e3a3e550, recv=<optimized out>, id=3425, argc=<optimized out>, argv=<optimized out>, cc=<optimized out>, kw_splat=0) at /usr/src/ruby/vm_eval.c:110
#20 0x00007f93e45a25c5 in rb_call (scope=<optimized out>, argv=0x7ffd3548b820, argc=0, mid=3425, recv=140272032282600) at /usr/src/ruby/vm_eval.c:899
#21 rb_funcall_with_block_kw (recv=140272032282600, mid=3425, argc=0, argv=0x7ffd3548b820, passed_procval=4, kw_splat=<optimized out>) at /usr/src/ruby/vm_eval.c:1214
#22 0x00007f93e459edd8 in vm_yield_with_cref (is_lambda=0, cref=0x0, kw_splat=0, argv=0x7ffd3548b818, argc=1, ec=<optimized out>) at vm.c:1637
#23 vm_yield (kw_splat=0, argv=0x7ffd3548b818, argc=1, ec=<optimized out>) at vm.c:1651
#24 rb_yield_0 (argv=0x7ffd3548b818, argc=1) at /usr/src/ruby/vm_eval.c:1366
#25 rb_yield (val=<optimized out>) at /usr/src/ruby/vm_eval.c:1382
#26 0x00007f93e42eef1c in rb_ary_each (ary=140272174656440) at array.c:2538
#27 0x00007f93e4581d74 in vm_call_cfunc_with_frame_ (stack_bottom=<optimized out>, argv=<optimized out>, argc=0, calling=<optimized out>, reg_cfp=0x7f93e3b540d0, ec=0x7f93e3a3e550) at /usr/src/ruby/vm_insnhelper.c:3495
#28 vm_call_cfunc_with_frame (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b540d0, calling=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3523
#29 0x00007f93e4588860 in vm_sendish (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b540d0, cd=0x7f93c4602d30, block_handler=<optimized out>, method_explorer=mexp_search_method) at /usr/src/ruby/vm_callinfo.h:403
#30 0x00007f93e4595920 in vm_exec_core (ec=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, ec@entry=0x7f93e3a3e550) at /usr/src/ruby/insns.def:814
#31 0x00007f93e4599799 in rb_vm_exec (ec=0x7f93e3a3e550) at vm.c:2495
#32 0x00007f93e45a3986 in vm_call0_cc (kw_splat=0, cc=0x7f939a66a820, argv=0x0, argc=0, id=27345, recv=140273161115320, ec=0x7f93e3a3e550) at /usr/src/ruby/vm_eval.c:110
#33 rb_funcallv_scope (scope=CALL_FCALL, argv=0x0, argc=0, mid=27345, recv=140273161115320) at /usr/src/ruby/vm_eval.c:1069
#34 rb_funcallv (recv=140273161115320, mid=mid@entry=27345, argc=argc@entry=0, argv=argv@entry=0x0) at /usr/src/ruby/vm_eval.c:1084
#35 0x00007f93e449d018 in rb_call_proc__fork () at process.c:4281
#36 0x00007f93e449d0f9 in rb_f_fork (obj=<optimized out>) at process.c:4379
#37 0x00007f93e4581d74 in vm_call_cfunc_with_frame_ (stack_bottom=<optimized out>, argv=<optimized out>, argc=0, calling=<optimized out>, reg_cfp=0x7f93e3b541e8, ec=0x7f93e3a3e550) at /usr/src/ruby/vm_insnhelper.c:3495
#38 vm_call_cfunc_with_frame (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b541e8, calling=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3523
#39 0x00007f93e4588860 in vm_sendish (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b541e8, cd=0x7f93c40c4f10, block_handler=<optimized out>, method_explorer=mexp_search_method) at /usr/src/ruby/vm_callinfo.h:403
#40 0x00007f93e4595920 in vm_exec_core (ec=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, ec@entry=0x7f93e3a3e550) at /usr/src/ruby/insns.def:814
#41 0x00007f93e4599a2b in vm_exec_loop (result=<optimized out>, tag=0x7ffd3548beb0, state=<optimized out>, ec=0x7f93e3a3e550) at vm.c:2522
#42 rb_vm_exec (ec=0x7f93e3a3e550) at vm.c:2501
#43 0x00007f93e459edd8 in vm_yield_with_cref (is_lambda=0, cref=0x0, kw_splat=0, argv=0x7ffd3548bf68, argc=1, ec=<optimized out>) at vm.c:1637
#44 vm_yield (kw_splat=0, argv=0x7ffd3548bf68, argc=1, ec=<optimized out>) at vm.c:1651
#45 rb_yield_0 (argv=0x7ffd3548bf68, argc=1) at /usr/src/ruby/vm_eval.c:1366
#46 rb_yield (val=<optimized out>) at /usr/src/ruby/vm_eval.c:1382
#47 0x00007f93e42eef1c in rb_ary_each (ary=140272065908720) at array.c:2538
#48 0x00007f93e4581d74 in vm_call_cfunc_with_frame_ (stack_bottom=<optimized out>, argv=<optimized out>, argc=0, calling=<optimized out>, reg_cfp=0x7f93e3b543a8, ec=0x7f93e3a3e550) at /usr/src/ruby/vm_insnhelper.c:3495
#49 vm_call_cfunc_with_frame (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b543a8, calling=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3523
#50 0x00007f93e4588860 in vm_sendish (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b543a8, cd=0x7f93c8b17460, block_handler=<optimized out>, method_explorer=mexp_search_method) at /usr/src/ruby/vm_callinfo.h:403
#51 0x00007f93e4595920 in vm_exec_core (ec=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, ec@entry=0x7f93e3a3e550) at /usr/src/ruby/insns.def:814
#52 0x00007f93e4599799 in rb_vm_exec (ec=0x7f93e3a3e550) at vm.c:2495
#53 0x00007f93e43ae700 in rb_ensure (b_proc=0x7f93e3e0c410 <monitor_sync_body>, data1=140272065908640, e_proc=<optimized out>, data2=140272065908640) at eval.c:1009
#54 0x00007f93e4581d74 in vm_call_cfunc_with_frame_ (stack_bottom=<optimized out>, argv=<optimized out>, argc=0, calling=<optimized out>, reg_cfp=0x7f93e3b54488, ec=0x7f93e3a3e550) at /usr/src/ruby/vm_insnhelper.c:3495
#55 vm_call_cfunc_with_frame (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b54488, calling=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3523
#56 0x00007f93e4588860 in vm_sendish (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b54488, cd=0x7f93c8b316d0, block_handler=<optimized out>, method_explorer=mexp_search_method) at /usr/src/ruby/vm_callinfo.h:403
#57 0x00007f93e4595920 in vm_exec_core (ec=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, ec@entry=0x7f93e3a3e550) at /usr/src/ruby/insns.def:814
#58 0x00007f93e4599799 in rb_vm_exec (ec=0x7f93e3a3e550) at vm.c:2495
#59 0x00007f93e459edd8 in vm_yield_with_cref (is_lambda=0, cref=0x0, kw_splat=0, argv=0x7ffd3548c648, argc=1, ec=<optimized out>) at vm.c:1637
#60 vm_yield (kw_splat=0, argv=0x7ffd3548c648, argc=1, ec=<optimized out>) at vm.c:1651
#61 rb_yield_0 (argv=0x7ffd3548c648, argc=1) at /usr/src/ruby/vm_eval.c:1366
#62 rb_yield (val=<optimized out>) at /usr/src/ruby/vm_eval.c:1382
#63 0x00007f93e42eef1c in rb_ary_each (ary=140271702492240) at array.c:2538
#64 0x00007f93e4581d74 in vm_call_cfunc_with_frame_ (stack_bottom=<optimized out>, argv=<optimized out>, argc=0, calling=<optimized out>, reg_cfp=0x7f93e3b545d8, ec=0x7f93e3a3e550) at /usr/src/ruby/vm_insnhelper.c:3495
#65 vm_call_cfunc_with_frame (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b545d8, calling=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3523
#66 0x00007f93e4588860 in vm_sendish (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b545d8, cd=0x7f93c8b17460, block_handler=<optimized out>, method_explorer=mexp_search_method) at /usr/src/ruby/vm_callinfo.h:403
#67 0x00007f93e4595920 in vm_exec_core (ec=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, ec@entry=0x7f93e3a3e550) at /usr/src/ruby/insns.def:814
#68 0x00007f93e4599799 in rb_vm_exec (ec=0x7f93e3a3e550) at vm.c:2495
#69 0x00007f93e43ae700 in rb_ensure (b_proc=0x7f93e3e0c410 <monitor_sync_body>, data1=140271702489880, e_proc=<optimized out>, data2=140271702489880) at eval.c:1009
#70 0x00007f93e4581d74 in vm_call_cfunc_with_frame_ (stack_bottom=<optimized out>, argv=<optimized out>, argc=0, calling=<optimized out>, reg_cfp=0x7f93e3b546b8, ec=0x7f93e3a3e550) at /usr/src/ruby/vm_insnhelper.c:3495
#71 vm_call_cfunc_with_frame (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b546b8, calling=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3523
#72 0x00007f93e4588860 in vm_sendish (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b546b8, cd=0x7f93c8b316d0, block_handler=<optimized out>, method_explorer=mexp_search_method) at /usr/src/ruby/vm_callinfo.h:403
#73 0x00007f93e4595920 in vm_exec_core (ec=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, ec@entry=0x7f93e3a3e550) at /usr/src/ruby/insns.def:814
#74 0x00007f93e4599799 in rb_vm_exec (ec=0x7f93e3a3e550) at vm.c:2495
#75 0x00007f93e459edd8 in vm_yield_with_cref (is_lambda=0, cref=0x0, kw_splat=0, argv=0x7ffd3548cd28, argc=1, ec=<optimized out>) at vm.c:1637
#76 vm_yield (kw_splat=0, argv=0x7ffd3548cd28, argc=1, ec=<optimized out>) at vm.c:1651
#77 rb_yield_0 (argv=0x7ffd3548cd28, argc=1) at /usr/src/ruby/vm_eval.c:1366
#78 rb_yield (val=<optimized out>) at /usr/src/ruby/vm_eval.c:1382
#79 0x00007f93e42eef1c in rb_ary_each (ary=140272681448440) at array.c:2538
#80 0x00007f93e4581d74 in vm_call_cfunc_with_frame_ (stack_bottom=<optimized out>, argv=<optimized out>, argc=0, calling=<optimized out>, reg_cfp=0x7f93e3b54808, ec=0x7f93e3a3e550) at /usr/src/ruby/vm_insnhelper.c:3495
#81 vm_call_cfunc_with_frame (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b54808, calling=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3523
#82 0x00007f93e4588860 in vm_sendish (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b54808, cd=0x7f93c8686970, block_handler=<optimized out>, method_explorer=mexp_search_method) at /usr/src/ruby/vm_callinfo.h:403
#83 0x00007f93e4595920 in vm_exec_core (ec=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, ec@entry=0x7f93e3a3e550) at /usr/src/ruby/insns.def:814
#84 0x00007f93e4599a2b in vm_exec_loop (result=<optimized out>, tag=0x7ffd3548cfa0, state=<optimized out>, ec=0x7f93e3a3e550) at vm.c:2522
#85 rb_vm_exec (ec=0x7f93e3a3e550) at vm.c:2501
#86 0x00007f93e44177b0 in rb_load_internal (wrap=<optimized out>, fname=140272682864560) at load.c:835
#87 rb_f_load (argc=<optimized out>, argv=<optimized out>, _=<optimized out>) at load.c:910
#88 0x00007f93e4581d74 in vm_call_cfunc_with_frame_ (stack_bottom=<optimized out>, argv=<optimized out>, argc=1, calling=<optimized out>, reg_cfp=0x7f93e3b549c8, ec=0x7f93e3a3e550) at /usr/src/ruby/vm_insnhelper.c:3495
#89 vm_call_cfunc_with_frame (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b549c8, calling=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3523
#90 0x00007f93e45937a9 in vm_sendish (method_explorer=<optimized out>, block_handler=<optimized out>, cd=<optimized out>, reg_cfp=<optimized out>, ec=<optimized out>) at /usr/src/ruby/vm_callinfo.h:403
#91 vm_exec_core (ec=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, ec@entry=0x7f93e3a3e550) at /usr/src/ruby/insns.def:834
#92 0x00007f93e4599799 in rb_vm_exec (ec=0x7f93e3a3e550) at vm.c:2495
#93 0x00007f93e44177b0 in rb_load_internal (wrap=<optimized out>, fname=140272689735680) at load.c:835
#94 rb_f_load (argc=<optimized out>, argv=<optimized out>, _=<optimized out>) at load.c:910
#95 0x00007f93e45820d9 in vm_call_cfunc_with_frame_ (stack_bottom=<optimized out>, argv=<optimized out>, argc=<optimized out>, calling=<optimized out>, reg_cfp=<optimized out>, ec=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3495
#96 vm_call_cfunc_with_frame (calling=<optimized out>, reg_cfp=<optimized out>, ec=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3523
#97 vm_call_cfunc_other (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b54a38, calling=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3549
#98 0x00007f93e45937a9 in vm_sendish (method_explorer=<optimized out>, block_handler=<optimized out>, cd=<optimized out>, reg_cfp=<optimized out>, ec=<optimized out>) at /usr/src/ruby/vm_callinfo.h:403
#99 vm_exec_core (ec=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, ec@entry=0x7f93e3a3e550) at /usr/src/ruby/insns.def:834
#100 0x00007f93e4599a2b in vm_exec_loop (result=<optimized out>, tag=0x7ffd3548d4c0, state=<optimized out>, ec=0x7f93e3a3e550) at vm.c:2522
#101 rb_vm_exec (ec=0x7f93e3a3e550) at vm.c:2501
#102 0x00007f93e44177b0 in rb_load_internal (wrap=<optimized out>, fname=140272696725280) at load.c:835
#103 rb_f_load (argc=<optimized out>, argv=<optimized out>, _=<optimized out>) at load.c:910
#104 0x00007f93e45820d9 in vm_call_cfunc_with_frame_ (stack_bottom=<optimized out>, argv=<optimized out>, argc=<optimized out>, calling=<optimized out>, reg_cfp=<optimized out>, ec=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3495
#105 vm_call_cfunc_with_frame (calling=<optimized out>, reg_cfp=<optimized out>, ec=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3523
#106 vm_call_cfunc_other (ec=0x7f93e3a3e550, reg_cfp=0x7f93e3b54d10, calling=<optimized out>) at /usr/src/ruby/vm_insnhelper.c:3549
#107 0x00007f93e45937a9 in vm_sendish (method_explorer=<optimized out>, block_handler=<optimized out>, cd=<optimized out>, reg_cfp=<optimized out>, ec=<optimized out>) at /usr/src/ruby/vm_callinfo.h:403
#108 vm_exec_core (ec=0x7f93e4886f00 <rb_internal_thread_event_hooks_rw_lock>, ec@entry=0x7f93e3a3e550) at /usr/src/ruby/insns.def:834
#109 0x00007f93e4599799 in rb_vm_exec (ec=0x7f93e3a3e550) at vm.c:2495
#110 0x00007f93e459a8b3 in rb_iseq_eval_main (iseq=<optimized out>) at vm.c:2761
#111 0x00007f93e43ac7e9 in rb_ec_exec_node (ec=ec@entry=0x7f93e3a3e550, n=n@entry=0x7f93c8493078) at eval.c:287
#112 0x00007f93e43b039b in ruby_run_node (n=0x7f93c8493078) at eval.c:328
#113 0x0000556c3adf0102 in rb_main (argv=0x7ffd3548d938, argc=5) at ./main.c:39
#114 main (argc=<optimized out>, argv=<optimized out>) at ./main.c:64
[Inferior 1 (process 56224) detached]
Reproduction Code
Unable to reproduce.
Configuration Block
c.service = service_name
c.runtime_metrics.enabled = true
c.tracing.enabled = true
c.tracing.sampling.default_rate = 0.5 if Rails.env.production?
c.tracing.report_hostname = true
c.tracing.log_injection = true
c.tracing.instrument :active_record, service_name: 'srv'
c.tracing.instrument :active_support, cache_service: 'srv'
c.tracing.instrument :aws
c.tracing.instrument :http, service_name: 'srv'
c.tracing.instrument :mongo, service_name: 'srv'
c.tracing.instrument :pg,
service_name: 'srv',
comment_propagation: 'full'
c.tracing.instrument :rails, middleware_names: true,
request_queuing: false,
service_name: 'srv'
c.tracing.instrument :redis, service_name: 'srv'
c.tracing.instrument :httpclient, service_name: 'srv'
c.profiling.enabled = true
c.profiling.allocation_enabled = true
Error Logs
N/A
Operating System
Alpine (Linux ip-10-30-82-239.ec2.internal 5.10.240-238.966.amzn2.x86_64 #1 SMP Tue Aug 26 16:14:09 UTC 2025 x86_64 Linux) on AWS ECS Fargate
How does Datadog help you?
N/A