Hi, I've noticed a segfault of HAProxy 2.8.9. I believe it happens when a map is updated frequently and at the same time a "clear map" command is triggered from CLI. I know the version I use is pretty old but I didn't find any fix that might be related to the latest versions. I would be very grateful for help.
bt: [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Core was generated by `/usr/sbin/haproxy -f /etc/haproxy/haproxy.cfg -p /var/run/haproxy.pid -D -sf 51'. Program terminated with signal SIGABRT, Aborted. #0 __pthread_kill_implementation (no_tid=0, signo=6, threadid=139643345953088) at ./nptl/pthread_kill.c:44 44 ./nptl/pthread_kill.c: No such file or directory. [Current thread is 1 (Thread 0x7f014007e140 (LWP 1292865))] (gdb) bt #0 __pthread_kill_implementation (no_tid=0, signo=6, threadid=139643345953088) at ./nptl/pthread_kill.c:44 #1 __pthread_kill_internal (signo=6, threadid=139643345953088) at ./nptl/pthread_kill.c:78 #2 __GI___pthread_kill (threadid=139643345953088, signo=signo@entry=6) at ./nptl/pthread_kill.c:89 #3 0x00007f01400c4476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26 #4 0x00007f01400aa7f3 in __GI_abort () at ./stdlib/abort.c:79 #5 0x000055ca8f571965 in ha_panic () at src/debug.c:439 #6 ha_panic () at src/debug.c:413 #7 <signal handler called> #8 0x00007f01401a0b7b in madvise () at ../sysdeps/unix/syscall-template.S:117 #9 0x00007f0140128995 in mtrim (pad=0, av=0x7f007c000030) at ./malloc/malloc.c:5078 #10 __malloc_trim (s=0) at ./malloc/malloc.c:5107 #11 0x000055ca8f71f3c0 in trim_all_pools () at src/pool.c:126 #12 0x000055ca8f717d65 in cli_io_handler_clear_map (appctx=0x55cb3f02a250) at src/map.c:1031 #13 0x000055ca8f6a6337 in cli_io_handler (appctx=0x55cb3f02a250) at src/cli.c:1121 #14 0x000055ca8f754a52 in task_run_applet (t=0x55cb2f3e89e0, context=<optimized out>, state=<optimized out>) at src/applet.c:454 #15 0x000055ca8f708503 in run_tasks_from_lists (budgets=budgets@entry=0x7ffe38e14ca0) at src/task.c:634 #16 0x000055ca8f708f19 in process_runnable_tasks () at src/task.c:876 #17 0x000055ca8f6d3cea in run_poll_loop () at src/haproxy.c:2970 #18 0x000055ca8f6d4341 in run_thread_poll_loop (data=<optimized out>) at src/haproxy.c:3169 #19 0x000055ca8f573830 in main (argc=<optimized out>, argv=<optimized out>) at src/haproxy.c:3859 HAProxy version 2.8.9-1842fd0 2024/04/05 - https://haproxy.org/ Status: long-term supported branch - will stop receiving fixes around Q2 2028. Known bugs: http://www.haproxy.org/bugs/bugs-2.8.9.html Running on: Linux 5.15.0-134-generic #145-Ubuntu SMP Wed Feb 12 20:08:39 UTC 2025 x86_64
