https://bz.apache.org/bugzilla/show_bug.cgi?id=66624
--- Comment #6 from chris <exxo...@googlemail.com> --- # gdb -p 182047 GNU gdb (Ubuntu 9.2-0ubuntu1~20.04.1) 9.2 Copyright (C) 2020 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word". Attaching to process 182047 [New LWP 182048] [New LWP 182049] [New LWP 182050] [New LWP 182051] [New LWP 182052] [New LWP 182053] [New LWP 182054] [New LWP 182055] [New LWP 182056] [New LWP 182057] [New LWP 182059] [New LWP 182060] [New LWP 182061] [New LWP 182062] [New LWP 182063] [New LWP 182064] [New LWP 182065] [New LWP 182066] [New LWP 182067] [New LWP 182068] [New LWP 182069] [New LWP 183166] [New LWP 183167] [New LWP 183168] [New LWP 187880] [New LWP 187881] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". --Type <RET> for more, q to quit, c to continue without paging--c __libc_read (nbytes=1, buf=0x7ffd2e6e8e63, fd=7) at ../sysdeps/unix/sysv/linux/read.c:26 26 ../sysdeps/unix/sysv/linux/read.c: No such file or directory. (gdb) bt #0 __libc_read (nbytes=1, buf=0x7ffd2e6e8e63, fd=7) at ../sysdeps/unix/sysv/linux/read.c:26 #1 __libc_read (fd=7, buf=0x7ffd2e6e8e63, nbytes=1) at ../sysdeps/unix/sysv/linux/read.c:24 #2 0x0000559bc199f58b in ap_mpm_podx_check () #3 0x00007f5ccdc22387 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #4 0x00007f5ccdc227ba in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #5 0x00007f5ccdc22835 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #6 0x00007f5ccdc23379 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #7 0x0000559bc1971de8 in ap_run_mpm () #8 0x0000559bc19697f9 in main () (gdb) where #0 __libc_read (nbytes=1, buf=0x7ffd2e6e8e63, fd=7) at ../sysdeps/unix/sysv/linux/read.c:26 #1 __libc_read (fd=7, buf=0x7ffd2e6e8e63, nbytes=1) at ../sysdeps/unix/sysv/linux/read.c:24 #2 0x0000559bc199f58b in ap_mpm_podx_check () #3 0x00007f5ccdc22387 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #4 0x00007f5ccdc227ba in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #5 0x00007f5ccdc22835 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #6 0x00007f5ccdc23379 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #7 0x0000559bc1971de8 in ap_run_mpm () #8 0x0000559bc19697f9 in main () (gdb) thread apply all bt Thread 27 (Thread 0x7f5c9f7fe700 (LWP 187881)): #0 futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f5c9f7fde10, clockid=<optimized out>, expected=0, futex_word=0x7f5ccdc0ace8) at ../sysdeps/nptl/futex-internal.h:320 #1 __pthread_cond_wait_common (abstime=0x7f5c9f7fde10, clockid=<optimized out>, mutex=0x7f5ccdc0a1c8, cond=0x7f5ccdc0acc0) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f5ccdc0acc0, mutex=0x7f5ccdc0a1c8, abstime=0x7f5c9f7fde10) at pthread_cond_wait.c:665 #3 0x00007f5ccdfd4a3b in apr_thread_cond_timedwait () from target:/lib/x86_64-linux-gnu/libapr-1.so.0 #4 0x00007f5ccd913681 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #5 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 26 (Thread 0x7f5ca4ff9700 (LWP 187880)): #0 futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f5ca4ff8e10, clockid=<optimized out>, expected=0, futex_word=0x7f5ccdc0ac94) at ../sysdeps/nptl/futex-internal.h:320 #1 __pthread_cond_wait_common (abstime=0x7f5ca4ff8e10, clockid=<optimized out>, mutex=0x7f5ccdc0a1c8, cond=0x7f5ccdc0ac68) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f5ccdc0ac68, mutex=0x7f5ccdc0a1c8, abstime=0x7f5ca4ff8e10) at pthread_cond_wait.c:665 #3 0x00007f5ccdfd4a3b in apr_thread_cond_timedwait () from target:/lib/x86_64-linux-gnu/libapr-1.so.0 #4 0x00007f5ccd913681 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #5 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 25 (Thread 0x7f5ca57fa700 (LWP 183168)): #0 futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f5ca57f9e10, clockid=<optimized out>, expected=0, futex_word=0x7f5ccdc0ac38) at ../sysdeps/nptl/futex-internal.h:320 #1 __pthread_cond_wait_common (abstime=0x7f5ca57f9e10, clockid=<optimized out>, mutex=0x7f5ccdc0a1c8, cond=0x7f5ccdc0ac10) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f5ccdc0ac10, mutex=0x7f5ccdc0a1c8, abstime=0x7f5ca57f9e10) at pthread_cond_wait.c:665 #3 0x00007f5ccdfd4a3b in apr_thread_cond_timedwait () from target:/lib/x86_64-linux-gnu/libapr-1.so.0 #4 0x00007f5ccd913681 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #5 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 24 (Thread 0x7f5ca5ffb700 (LWP 183167)): #0 futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f5ca5ffae10, clockid=<optimized out>, expected=0, futex_word=0x7f5ccdc0abe0) at ../sysdeps/nptl/futex-internal.h:320 #1 __pthread_cond_wait_common (abstime=0x7f5ca5ffae10, clockid=<optimized out>, mutex=0x7f5ccdc0a1c8, cond=0x7f5ccdc0abb8) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f5ccdc0abb8, mutex=0x7f5ccdc0a1c8, abstime=0x7f5ca5ffae10) at pthread_cond_wait.c:665 #3 0x00007f5ccdfd4a3b in apr_thread_cond_timedwait () from target:/lib/x86_64-linux-gnu/libapr-1.so.0 #4 0x00007f5ccd913681 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #5 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 --Type <RET> for more, q to quit, c to continue without paging-- Thread 23 (Thread 0x7f5ca67fc700 (LWP 183166)): #0 futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f5ca67f66b0, clockid=<optimized out>, expected=0, futex_word=0x7f5cc451a1f8) at ../sysdeps/nptl/futex-internal.h:320 #1 __pthread_cond_wait_common (abstime=0x7f5ca67f66b0, clockid=<optimized out>, mutex=0x7f5cc451a180, cond=0x7f5cc451a1d0) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f5cc451a1d0, mutex=0x7f5cc451a180, abstime=0x7f5ca67f66b0) at pthread_cond_wait.c:665 #3 0x00007f5ccdfd4a3b in apr_thread_cond_timedwait () from target:/lib/x86_64-linux-gnu/libapr-1.so.0 #4 0x00007f5ccd8f1d50 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #5 0x00007f5ccd8f7abe in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #6 0x00007f5ccd8f8c61 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #7 0x0000559bc1978495 in ap_content_length_filter () #8 0x00007f5ccd8b6f1e in ?? () from target:/usr/lib/apache2/modules/mod_proxy_fcgi.so #9 0x00007f5ccd8b7f2c in ?? () from target:/usr/lib/apache2/modules/mod_proxy_fcgi.so #10 0x00007f5ccd86a31b in proxy_run_scheme_handler () from target:/usr/lib/apache2/modules/mod_proxy.so #11 0x00007f5ccd86c40b in ?? () from target:/usr/lib/apache2/modules/mod_proxy.so #12 0x0000559bc1991ec8 in ap_run_handler () #13 0x0000559bc1992476 in ap_invoke_handler () #14 0x0000559bc19aace3 in ap_process_async_request () #15 0x0000559bc19aaeb2 in ap_process_request () #16 0x00007f5ccd8f7239 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #17 0x0000559bc199bc68 in ap_run_process_connection () #18 0x00007f5ccd8f7daf in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #19 0x00007f5ccd9137e7 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #20 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #21 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 22 (Thread 0x7f5ca6ffd700 (LWP 182069)): #0 0x00007f5ccdebe46e in epoll_wait (epfd=18, events=0x7f5ccd708488, maxevents=23, timeout=9996) at ../sysdeps/unix/sysv/linux/epoll_wait.c:30 #1 0x00007f5ccdfdc98e in ?? () from target:/lib/x86_64-linux-gnu/libapr-1.so.0 #2 0x00007f5ccdc247f8 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #3 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #4 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 21 (Thread 0x7f5ca77fe700 (LWP 182068)): #0 0x00007f5ccdeb199f in __GI___poll (fds=0x7f5ca77fd990, nfds=1, timeout=300000) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007f5ccdfdd6fe in apr_poll () from target:/lib/x86_64-linux-gnu/libapr-1.so.0 #2 0x0000559bc198d265 in ap_core_output_filter () #3 0x00007f5ccd6b51fa in ?? () from target:/usr/lib/apache2/modules/mod_ssl.so #4 0x00007f5ccd6b1fd2 in ?? () from target:/usr/lib/apache2/modules/mod_ssl.so #5 0x00007f5ccd8f4cd5 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so --Type <RET> for more, q to quit, c to continue without paging-- #6 0x00007f5ccd9088b4 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #7 0x00007f5ccd8f3551 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #8 0x00007f5ccd8f39ab in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #9 0x0000559bc199bc68 in ap_run_process_connection () #10 0x00007f5ccdc216e5 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #11 0x00007f5ccdc259fd in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #12 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #13 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 20 (Thread 0x7f5ca7fff700 (LWP 182067)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccd708160) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccd7080e8, cond=0x7f5ccd708138) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccd708138, mutex=0x7f5ccd7080e8) at pthread_cond_wait.c:647 #3 0x0000559bc19a046d in ap_queue_pop_something () #4 0x00007f5ccdc256fe in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #5 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 19 (Thread 0x7f5c9ffff700 (LWP 182066)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccd708164) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccd7080e8, cond=0x7f5ccd708138) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccd708138, mutex=0x7f5ccd7080e8) at pthread_cond_wait.c:647 #3 0x0000559bc19a046d in ap_queue_pop_something () #4 0x00007f5ccdc256fe in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #5 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 18 (Thread 0x7f5cc4d79700 (LWP 182065)): #0 0x00007f5ccd8cab88 in ?? () from target:/lib/x86_64-linux-gnu/libnghttp2.so.14 #1 0x00007f5ccd8cbca9 in nghttp2_session_send () from target:/lib/x86_64-linux-gnu/libnghttp2.so.14 #2 0x00007f5ccd908350 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #3 0x00007f5ccd90894d in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #4 0x00007f5ccd8f3551 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #5 0x00007f5ccd8f39ab in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #6 0x0000559bc199bc68 in ap_run_process_connection () #7 0x00007f5ccdc216e5 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #8 0x00007f5ccdc259fd in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #9 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #10 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 --Type <RET> for more, q to quit, c to continue without paging-- Thread 17 (Thread 0x7f5cc557a700 (LWP 182064)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccd708160) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccd7080e8, cond=0x7f5ccd708138) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccd708138, mutex=0x7f5ccd7080e8) at pthread_cond_wait.c:647 #3 0x0000559bc19a046d in ap_queue_pop_something () #4 0x00007f5ccdc256fe in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #5 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 16 (Thread 0x7f5cc5d7b700 (LWP 182063)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccd708160) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccd7080e8, cond=0x7f5ccd708138) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccd708138, mutex=0x7f5ccd7080e8) at pthread_cond_wait.c:647 #3 0x0000559bc19a046d in ap_queue_pop_something () #4 0x00007f5ccdc256fe in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #5 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 15 (Thread 0x7f5cc657c700 (LWP 182062)): #0 0x00007f5ccdeb199f in __GI___poll (fds=0x7f5cc657a550, nfds=1, timeout=300000) at ../sysdeps/unix/sysv/linux/poll.c:29 #1 0x00007f5ccdfdd6fe in apr_poll () from target:/lib/x86_64-linux-gnu/libapr-1.so.0 #2 0x0000559bc198d265 in ap_core_output_filter () #3 0x00007f5ccd6b1888 in ?? () from target:/usr/lib/apache2/modules/mod_ssl.so #4 0x00007f5ccd6b1bcd in ?? () from target:/usr/lib/apache2/modules/mod_ssl.so #5 0x00007f5ccd9d066e in ?? () from target:/lib/x86_64-linux-gnu/libcrypto.so.1.1 #6 0x00007f5ccd9cf684 in ?? () from target:/lib/x86_64-linux-gnu/libcrypto.so.1.1 #7 0x00007f5ccd9cfb47 in BIO_write () from target:/lib/x86_64-linux-gnu/libcrypto.so.1.1 #8 0x00007f5ccd7c8dde in ?? () from target:/lib/x86_64-linux-gnu/libssl.so.1.1 #9 0x00007f5ccd7c9cd9 in ?? () from target:/lib/x86_64-linux-gnu/libssl.so.1.1 #10 0x00007f5ccd7c9f75 in ?? () from target:/lib/x86_64-linux-gnu/libssl.so.1.1 #11 0x00007f5ccd7dccd9 in ?? () from target:/lib/x86_64-linux-gnu/libssl.so.1.1 #12 0x00007f5ccd7dce17 in SSL_write () from target:/lib/x86_64-linux-gnu/libssl.so.1.1 #13 0x00007f5ccd6b5365 in ?? () from target:/usr/lib/apache2/modules/mod_ssl.so #14 0x00007f5ccd6b1fd2 in ?? () from target:/usr/lib/apache2/modules/mod_ssl.so #15 0x00007f5ccd8f4cd5 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #16 0x00007f5ccd908429 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #17 0x00007f5ccd90885f in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #18 0x00007f5ccd8f3551 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #19 0x00007f5ccd8f39ab in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #20 0x0000559bc199bc68 in ap_run_process_connection () --Type <RET> for more, q to quit, c to continue without paging-- #21 0x00007f5ccdc216e5 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #22 0x00007f5ccdc259fd in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #23 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #24 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 14 (Thread 0x7f5cc6d7d700 (LWP 182061)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccd708160) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccd7080e8, cond=0x7f5ccd708138) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccd708138, mutex=0x7f5ccd7080e8) at pthread_cond_wait.c:647 #3 0x0000559bc19a046d in ap_queue_pop_something () #4 0x00007f5ccdc256fe in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #5 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 13 (Thread 0x7f5cc757e700 (LWP 182060)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccd708160) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccd7080e8, cond=0x7f5ccd708138) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccd708138, mutex=0x7f5ccd7080e8) at pthread_cond_wait.c:647 #3 0x0000559bc19a046d in ap_queue_pop_something () #4 0x00007f5ccdc256fe in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #5 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 12 (Thread 0x7f5cc7d7f700 (LWP 182059)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccd708164) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccd7080e8, cond=0x7f5ccd708138) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccd708138, mutex=0x7f5ccd7080e8) at pthread_cond_wait.c:647 #3 0x0000559bc19a046d in ap_queue_pop_something () #4 0x00007f5ccdc256fe in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #5 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #6 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 11 (Thread 0x7f5cc8d81700 (LWP 182057)): #0 futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f5cc8d7b6b0, clockid=<optimized out>, expected=0, futex_word=0x7f5cc43b51f8) at ../sysdeps/nptl/futex-internal.h:320 #1 __pthread_cond_wait_common (abstime=0x7f5cc8d7b6b0, clockid=<optimized out>, mutex=0x7f5cc43b5180, cond=0x7f5cc43b51d0) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f5cc43b51d0, mutex=0x7f5cc43b5180, abstime=0x7f5cc8d7b6b0) at pthread_cond_wait.c:665 #3 0x00007f5ccdfd4a3b in apr_thread_cond_timedwait () from target:/lib/x86_64-linux-gnu/libapr-1.so.0 #4 0x00007f5ccd8f1d50 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #5 0x00007f5ccd8f7abe in ?? () from target:/usr/lib/apache2/modules/mod_http2.so --Type <RET> for more, q to quit, c to continue without paging-- #6 0x00007f5ccd8f8c61 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #7 0x0000559bc1978495 in ap_content_length_filter () #8 0x00007f5ccd8b6f1e in ?? () from target:/usr/lib/apache2/modules/mod_proxy_fcgi.so #9 0x00007f5ccd8b7f2c in ?? () from target:/usr/lib/apache2/modules/mod_proxy_fcgi.so #10 0x00007f5ccd86a31b in proxy_run_scheme_handler () from target:/usr/lib/apache2/modules/mod_proxy.so #11 0x00007f5ccd86c40b in ?? () from target:/usr/lib/apache2/modules/mod_proxy.so #12 0x0000559bc1991ec8 in ap_run_handler () #13 0x0000559bc1992476 in ap_invoke_handler () #14 0x0000559bc19aace3 in ap_process_async_request () #15 0x0000559bc19aaeb2 in ap_process_request () #16 0x00007f5ccd8f7239 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #17 0x0000559bc199bc68 in ap_run_process_connection () #18 0x00007f5ccd8f7daf in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #19 0x00007f5ccd9137e7 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #20 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #21 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 10 (Thread 0x7f5cc9582700 (LWP 182056)): #0 futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f5cc957c6b0, clockid=<optimized out>, expected=0, futex_word=0x7f5cc445e1fc) at ../sysdeps/nptl/futex-internal.h:320 #1 __pthread_cond_wait_common (abstime=0x7f5cc957c6b0, clockid=<optimized out>, mutex=0x7f5cc445e180, cond=0x7f5cc445e1d0) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f5cc445e1d0, mutex=0x7f5cc445e180, abstime=0x7f5cc957c6b0) at pthread_cond_wait.c:665 #3 0x00007f5ccdfd4a3b in apr_thread_cond_timedwait () from target:/lib/x86_64-linux-gnu/libapr-1.so.0 #4 0x00007f5ccd8f1d50 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #5 0x00007f5ccd8f7abe in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #6 0x00007f5ccd8f8c61 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #7 0x0000559bc1978495 in ap_content_length_filter () #8 0x00007f5ccd8b6f1e in ?? () from target:/usr/lib/apache2/modules/mod_proxy_fcgi.so #9 0x00007f5ccd8b7f2c in ?? () from target:/usr/lib/apache2/modules/mod_proxy_fcgi.so #10 0x00007f5ccd86a31b in proxy_run_scheme_handler () from target:/usr/lib/apache2/modules/mod_proxy.so #11 0x00007f5ccd86c40b in ?? () from target:/usr/lib/apache2/modules/mod_proxy.so #12 0x0000559bc1991ec8 in ap_run_handler () #13 0x0000559bc1992476 in ap_invoke_handler () #14 0x0000559bc19aace3 in ap_process_async_request () #15 0x0000559bc19aaeb2 in ap_process_request () #16 0x00007f5ccd8f7239 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #17 0x0000559bc199bc68 in ap_run_process_connection () #18 0x00007f5ccd8f7daf in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #19 0x00007f5ccd9137e7 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #20 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 --Type <RET> for more, q to quit, c to continue without paging-- #21 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 9 (Thread 0x7f5cc9d83700 (LWP 182055)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccdc0aa80) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccdc0a1c8, cond=0x7f5ccdc0aa58) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccdc0aa58, mutex=0x7f5ccdc0a1c8) at pthread_cond_wait.c:647 #3 0x00007f5ccd913651 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #4 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #5 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 8 (Thread 0x7f5cca584700 (LWP 182054)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccdc0aa28) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccdc0a1c8, cond=0x7f5ccdc0aa00) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccdc0aa00, mutex=0x7f5ccdc0a1c8) at pthread_cond_wait.c:647 #3 0x00007f5ccd913651 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #4 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #5 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 7 (Thread 0x7f5ccad85700 (LWP 182053)): #0 futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f5ccad7f6b0, clockid=<optimized out>, expected=0, futex_word=0x7f5cc43d61f8) at ../sysdeps/nptl/futex-internal.h:320 #1 __pthread_cond_wait_common (abstime=0x7f5ccad7f6b0, clockid=<optimized out>, mutex=0x7f5cc43d6180, cond=0x7f5cc43d61d0) at pthread_cond_wait.c:520 #2 __pthread_cond_timedwait (cond=0x7f5cc43d61d0, mutex=0x7f5cc43d6180, abstime=0x7f5ccad7f6b0) at pthread_cond_wait.c:665 #3 0x00007f5ccdfd4a3b in apr_thread_cond_timedwait () from target:/lib/x86_64-linux-gnu/libapr-1.so.0 #4 0x00007f5ccd8f1d50 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #5 0x00007f5ccd8f7abe in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #6 0x00007f5ccd8f8c61 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #7 0x0000559bc1978495 in ap_content_length_filter () #8 0x00007f5ccd8b6f1e in ?? () from target:/usr/lib/apache2/modules/mod_proxy_fcgi.so #9 0x00007f5ccd8b7f2c in ?? () from target:/usr/lib/apache2/modules/mod_proxy_fcgi.so #10 0x00007f5ccd86a31b in proxy_run_scheme_handler () from target:/usr/lib/apache2/modules/mod_proxy.so #11 0x00007f5ccd86c40b in ?? () from target:/usr/lib/apache2/modules/mod_proxy.so #12 0x0000559bc1991ec8 in ap_run_handler () #13 0x0000559bc1992476 in ap_invoke_handler () #14 0x0000559bc19aace3 in ap_process_async_request () #15 0x0000559bc19aaeb2 in ap_process_request () #16 0x00007f5ccd8f7239 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #17 0x0000559bc199bc68 in ap_run_process_connection () #18 0x00007f5ccd8f7daf in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #19 0x00007f5ccd9137e7 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so --Type <RET> for more, q to quit, c to continue without paging-- #20 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #21 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 6 (Thread 0x7f5ccb586700 (LWP 182052)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccdc0a97c) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccdc0a1c8, cond=0x7f5ccdc0a950) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccdc0a950, mutex=0x7f5ccdc0a1c8) at pthread_cond_wait.c:647 #3 0x00007f5ccd913651 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #4 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #5 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 5 (Thread 0x7f5ccbd87700 (LWP 182051)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccdc0a924) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccdc0a1c8, cond=0x7f5ccdc0a8f8) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccdc0a8f8, mutex=0x7f5ccdc0a1c8) at pthread_cond_wait.c:647 #3 0x00007f5ccd913651 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #4 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #5 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 4 (Thread 0x7f5ccc588700 (LWP 182050)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccdc0a8cc) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccdc0a1c8, cond=0x7f5ccdc0a8a0) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccdc0a8a0, mutex=0x7f5ccdc0a1c8) at pthread_cond_wait.c:647 #3 0x00007f5ccd913651 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #4 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #5 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 3 (Thread 0x7f5cccd89700 (LWP 182049)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccdc0a870) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccdc0a1c8, cond=0x7f5ccdc0a848) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccdc0a848, mutex=0x7f5ccdc0a1c8) at pthread_cond_wait.c:647 #3 0x00007f5ccd913651 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so #4 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #5 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 2 (Thread 0x7f5ccd58a700 (LWP 182048)): #0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f5ccdc0a81c) at ../sysdeps/nptl/futex-internal.h:183 #1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x7f5ccdc0a1c8, cond=0x7f5ccdc0a7f0) at pthread_cond_wait.c:508 #2 __pthread_cond_wait (cond=0x7f5ccdc0a7f0, mutex=0x7f5ccdc0a1c8) at pthread_cond_wait.c:647 #3 0x00007f5ccd913651 in ?? () from target:/usr/lib/apache2/modules/mod_http2.so --Type <RET> for more, q to quit, c to continue without paging-- #4 0x00007f5ccdf99609 in start_thread (arg=<optimized out>) at pthread_create.c:477 #5 0x00007f5ccdebe133 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95 Thread 1 (Thread 0x7f5ccdd1a500 (LWP 182047)): #0 __libc_read (nbytes=1, buf=0x7ffd2e6e8e63, fd=7) at ../sysdeps/unix/sysv/linux/read.c:26 #1 __libc_read (fd=7, buf=0x7ffd2e6e8e63, nbytes=1) at ../sysdeps/unix/sysv/linux/read.c:24 #2 0x0000559bc199f58b in ap_mpm_podx_check () #3 0x00007f5ccdc22387 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #4 0x00007f5ccdc227ba in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #5 0x00007f5ccdc22835 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #6 0x00007f5ccdc23379 in ?? () from target:/usr/lib/apache2/modules/mod_mpm_event.so #7 0x0000559bc1971de8 in ap_run_mpm () #8 0x0000559bc19697f9 in main () (gdb) I have switched to prefork just to see if that changes anything. Now I see "Keep alive" connections poppingup, and "close connections" in the server-status page. I didn't using event. So something has changed. I need to leave it on prefork for a few hours to see if the problem returns. -- You are receiving this mail because: You are the assignee for the bug. --------------------------------------------------------------------- To unsubscribe, e-mail: bugs-unsubscr...@httpd.apache.org For additional commands, e-mail: bugs-h...@httpd.apache.org
