On Tue, 22 Sep 2026 20:30:57 +0200, Kirill A. Korinsky <[email protected]> wrote: > > On Sat, 19 Sep 2026 17:38:12 +0200, > Stuart Henderson <[email protected]> wrote: > > > > CVSROOT: /cvs > > Module name: ports > > Changes by: [email protected] 2026/09/19 09:38:12 > > > > Modified files: > > devel/libdispatch: Makefile distinfo > > devel/libdispatch/patches: > > > > patch-cmake_modules_DispatchCompilerWarnings_cmake > > patch-src_CMakeLists_txt > > Removed files: > > devel/libdispatch/patches: > > patch-cmake_modules_SwiftSupport_cmake > > patch-private_private_h > > patch-src_event_event_c > > patch-src_event_event_internal_h > > patch-src_event_event_kevent_c > > patch-src_event_workqueue_c > > patch-src_init_c patch-src_internal_h > > patch-src_io_c patch-src_queue_c > > patch-src_shims_lock_c > > patch-src_shims_lock_h > > patch-src_swift_Source_swift > > patch-src_swift_Wrapper_swift > > patch-tests_CMakeLists_txt > > patch-tests_bsdtestharness_c > > patch-tests_dispatch_workqueue_c > > > > Log message: > > update to libdispatch-6.4.0 > > > > This introduced regression in both net/64gram and net/tdesktop. > > It started to consime 100% CPU on idle. > > Inside gdb I see: > > (gdb) bt > #0 kevent () at /tmp/-:2 > #1 0x5479ad231d10bee9 in ?? () > #2 0x000001dd874521ab in _dispatch_kq_poll () from > /usr/local/lib/libdispatch.so.0.0 > #3 0x000001dd87451b9b in _dispatch_kq_drain () from > /usr/local/lib/libdispatch.so.0.0 > #4 0x000001dd87451adb in _dispatch_event_loop_drain () from > /usr/local/lib/libdispatch.so.0.0 > #5 0x000001dd87445d02 in _dispatch_mgr_invoke () from > /usr/local/lib/libdispatch.so.0.0 > #6 0x000001dd87445c5b in _dispatch_mgr_thread () from > /usr/local/lib/libdispatch.so.0.0 > #7 0x000001dd874496fb in _dispatch_worker_thread () from > /usr/local/lib/libdispatch.so.0.0 > #8 0x000001de63074aa2 in _rthread_start (v=0x1) at > /usr/src/lib/librthread/rthread.c:99 > #9 0x000001ddecf9b88a in __tfork_thread () at > /usr/src/lib/libc/arch/amd64/sys/tfork_thread.S:87 > (gdb) > > and inside ktrace I see a lot of > > 24541 Telegram RET kevent 1 > 24541 Telegram CALL kevent(17,0xc65660b3c80,1,0xc65660b3a00,16,0) > 24541 Telegram STRU struct kevent { ident=18446744073709551360, > filter=EVFILT_TIMER, flags=0x15<EV_ADD|EV_ENABLE|EV_ONESHOT>, > fflags=0x13<NOTE_NSECONDS|NOTE_ABSTIME>, data=350184616671211, > udata=0xc652f0e8180 } > 24541 Telegram STRU struct kevent { ident=18446744073709551360, > filter=EVFILT_TIMER, flags=0x15<EV_ADD|EV_ENABLE|EV_ONESHOT>, fflags=0<>, > data=1, udata=0xc652f0e8180 } > 24541 Telegram RET kevent 1 > 24541 Telegram CALL kevent(17,0xc65660b3c80,1,0xc65660b3a00,16,0) > 24541 Telegram STRU struct kevent { ident=18446744073709551360, > filter=EVFILT_TIMER, flags=0x15<EV_ADD|EV_ENABLE|EV_ONESHOT>, > fflags=0x13<NOTE_NSECONDS|NOTE_ABSTIME>, data=350184616671211, > udata=0xc652f0e8180 } > 24541 Telegram STRU struct kevent { ident=18446744073709551360, > filter=EVFILT_TIMER, flags=0x15<EV_ADD|EV_ENABLE|EV_ONESHOT>, fflags=0<>, > data=1, udata=0xc652f0e8180 } > 24541 Telegram RET kevent 1 > 24541 Telegram CALL kevent(17,0xc65660b3c80,1,0xc65660b3a00,16,0) > 24541 Telegram STRU struct kevent { ident=18446744073709551360, > filter=EVFILT_TIMER, flags=0x15<EV_ADD|EV_ENABLE|EV_ONESHOT>, > fflags=0x13<NOTE_NSECONDS|NOTE_ABSTIME>, data=350184616671211, > udata=0xc652f0e8180 } > 24541 Telegram STRU struct kevent { ident=18446744073709551360, > filter=EVFILT_TIMER, flags=0x15<EV_ADD|EV_ENABLE|EV_ONESHOT>, fflags=0<>, > data=1, udata=0xc652f0e8180 } > > > Thus, seems that bump of SHARED_LIBS was missed on that update, it was good > for me, and allows to track it fast, but... can differences in ABI be a > reason of regression? >
Well, check-shlib-syms states that here no difference... probably SHARED_LIBS really doesn't need a bump. Anyway, here a diff which a bit hacky and fixes regression in tdesktop and 64gram, and I think in other similar places. Thoughts? Index: Makefile =================================================================== RCS file: /cvs/ports/devel/libdispatch/Makefile,v diff -u -p -r1.12 Makefile --- Makefile 20 Sep 2026 15:50:44 -0000 1.12 +++ Makefile 22 Sep 2026 19:02:40 -0000 @@ -2,6 +2,7 @@ COMMENT = support for concurrent code ex PKGNAME = libdispatch-$V V = 6.4.0 +REVISION = 0 GH_ACCOUNT = apple GH_PROJECT = swift-corelibs-libdispatch Index: patches/patch-src_event_event_config_h =================================================================== RCS file: patches/patch-src_event_event_config_h diff -N patches/patch-src_event_event_config_h --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ patches/patch-src_event_event_config_h 22 Sep 2026 19:02:40 -0000 @@ -0,0 +1,16 @@ +Index: src/event/event_config.h +--- src/event/event_config.h.orig ++++ src/event/event_config.h +@@ -116,9 +116,10 @@ + # define NOTE_FUNLOCK 0x00000100 + # endif + +-// FreeBSD's kevent does not support those ++// FreeBSD's and OpenBSD's kevent does not support those ++// OpenBSD's NOTE_ABSTIME uses CLOCK_REALTIME + # ifndef NOTE_ABSOLUTE +-# ifdef NOTE_ABSTIME ++# if defined(NOTE_ABSTIME) && !defined(__OpenBSD__) + # define NOTE_ABSOLUTE NOTE_ABSTIME + # else + # define NOTE_ABSOLUTE 0 -- wbr, Kirill
