Andrew, Can now reproduce the "auto fit" crash reliably on Fedora 37 when add to CFLAGS in cinelerra/Makefile "-flto -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1" and on Fedora 36 under different circumstances, which is CFLAGS addition of "-O2 -flto". Not sure why different CFLAGS are required on different O/S versions.
Anyway I get the same crash backtrace of: (gdb) bt #0 0x0000000000a0cad0 in Autos::get_next_auto(long, int, Auto*&, int) () #1 0x0000000000b04dde in FloatAutos::get_value(long, int, FloatAuto*&, FloatAuto*&) () #2 0x0000000000b0530e in FloatAutos::get_extents(float*, float*, int*, long, long) () #3 0x0000000000a0ae14 in Automation::get_extents(float*, float*, int*, long, long, int) () #4 0x0000000000c5d092 in Tracks::get_automation_extents(float*, float*, double, double, int) () #5 0x0000000000b6a30d in MWindow::fit_autos(int) () #6 0x0000000000a9f8c9 in EditFitAutos::handle_event() () #7 0x0000000000cebbf4 in BC_Button::button_release_event() () #8 0x0000000000d310fb in BC_WindowBase::dispatch_button_release() () #9 0x0000000000d310fb in BC_WindowBase::dispatch_button_release() () #10 0x0000000000d399ff in BC_WindowBase::dispatch_event() () #11 0x0000000000d3a288 in BC_WindowBase::run_window() () #12 0x0000000000b751bf in MWindow::run() () #13 0x00000000007f41be in main () But the PROBLEM is when I add a printf statement, it no longer crashes. And when I compile to add a symbol table to use with GDB, it no longer crashes. Applying the patch: 0011-EXPERIMENTAL-try-to-init-two-variables-to-0-in-gloat.patch, still crashes too. Any advice of how I can debug further? How can I view the value of variables in GDB without a symbol table? On Wed, Feb 15, 2023 at 6:29 PM Phyllis Smith <[email protected]> wrote: > >> 09feb2022/0010-TMP-add-flto-to-cinelerra-Makefile.patch >> >> localhack, trying to make it crash on "fit all autos" like in Fedora, no >> luck so far! >> > Working again on trying to reproduce this on Fedora 37 with default > installed gcc. Patched file with this + added LINKER = ld +flto to the > cinelerra/Makefile because read onlinethat flto has to be added to the > compiler AND the linker. But still no crash with "fit all autos". > > According to the RPM Fusion bug comment as quoted below, when they removed > the lto, the crash was fixed. > > I saw the https://www.cinelerra-gg.org/bugtracker/view.php?id=632 mentioned > lto, so I've tested and disabled lto on the build and now I'm not reproducing > the issue. But it would be fine if a dedicated issue can be created so that > cinelerra can work with lto... > > So I still have to find a way to make it crash, so a fix can be created. > Will update when I succeed. > >
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