Hi,
this issue should have been fixed by patch v9.1.1592. Thanks Yegappan.
Sorry, I couldn't merge it earlier as I was away for vacation.
Thanks,
Chris
On Sa, 26 Jul 2025, Christian J. Robinson wrote:
> I haven't been able to reproduce it with a small test script.
>
> On Sat, Jul 26, 2025 at 2:11 PM Yegappan Lakshmanan <yegapp...@gmail.com>
> wrote:
>
> Hi,
>
> On Sat, Jul 26, 2025 at 12:06 PM Christian J. Robinson <hept...@gmail.com>
> wrote:
>
> The patch fixes the problem for me. Thank you.
>
>
>
> Thanks for validating the patch. I will create a PR for this. But I want
> to add a test that
> reproduces this issue. Is it possible for you to reproduce this issue with
> a small test script?
>
> Thanks,
> Yegappan
>
>
> On Sat, Jul 26, 2025 at 10:24 AM Yegappan Lakshmanan <
> yegapp...@gmail.com> wrote:
>
> Hi,
>
> On Sat, Jul 26, 2025 at 6:47 AM Christian J. Robinson <
> hept...@gmail.com> wrote:
>
> (gdb) p tv->v_type
> $1 = VAR_OBJECT
> (gdb) p tv->vval.v_object->obj_class
> Cannot access memory at address 0x0
> (gdb) p cl
> $2 = (class_T *) 0xa006c15e0
> (gdb) p tv->vval.v_object->obj_refcount
> Cannot access memory at address 0x8
>
>
>
> Can you try this patch?
>
> diff --git a/src/vim9class.c b/src/vim9class.c
> index aa68a6dc8..40b594af7 100644
> --- a/src/vim9class.c
> +++ b/src/vim9class.c
> @@ -3714,7 +3714,8 @@ class_get_selfrefs(class_T *cl)
> for (int i = 0; i < cl->class_class_member_count; ++i)
> {
> tv = &cl->class_members_tv[i];
> - if (tv->v_type == VAR_OBJECT && tv->vval.v_object->
> obj_class == cl
> + if (tv->v_type == VAR_OBJECT && tv->vval.v_object != NULL
> + && tv->vval.v_object->obj_class == cl
> && (tv->vval.v_object->obj_refcount == 1
> || (IS_ENUM(cl) && tv->vval.v_object->
> obj_refcount == 2)))
> self_refs++;
>
> Thanks,
> Yegappan
>
>
> On Sat, Jul 26, 2025 at 12:29 AM Christian Brabandt <
> cbli...@256bit.org> wrote:
>
> Hmm, this crashes in class_get_selfrefs() indicating
> perhaps patch v9.1.1566. Can you attach gdb to Vim, cause
> the crash and when you are back in gdb, print the values
> of
> the variables at line 3717?
>
> Thanks
> Chris
>
>
> Am 26.07.2025 um 02:44 schrieb Christian J. Robinson <
> hept...@gmail.com>:
>
>
> New backtrace attached.
>
> On Fri, Jul 25, 2025 at 6:21 PM Yegappan Lakshmanan <
> yegapp...@gmail.com> wrote:
>
> Hi,
>
> Can you build VIM with debug information (argument
> values) and collect the traceback?
>
> Thanks,
> Yegappan
>
> On Fri, Jul 25, 2025 at 4:54 PM Christian J.
> Robinson <hept...@gmail.com> wrote:
>
> I really don't know what I'm doing when it
> comes to gdb, but this is the backtrace:
>
> #0 0x0000000100637cf2 in class_unref.part ()
> #1 0x000000010063c466 in get_member_tv ()
> #2 0x000000010063c8a3 in class_object_index
> ()
> #3 0x0000000100459fd9 in handle_subscript ()
> #4 0x000000010045b005 in eval9 ()
> #5 0x000000010045b703 in eval7 ()
> #6 0x000000010045ba94 in eval6 ()
> #7 0x000000010045c46e in eval4 ()
> #8 0x000000010045c7d1 in eval3 ()
> #9 0x000000010045cbc8 in eval1 ()
> #10 0x000000010045dca2 in eval0_retarg ()
> #11 0x000000010045e692 in eval_to_string_eap
> ()
> #12 0x0000000100473738 in eval_one_expr_in_str
> ()
> #13 0x000000010061ef58 in eval_interp_string
> ()
> #14 0x000000010045b35d in eval9 ()
> #15 0x000000010045b703 in eval7 ()
> #16 0x000000010045bc50 in eval6 ()
> #17 0x000000010045c46e in eval4 ()
> #18 0x000000010045c7d1 in eval3 ()
> #19 0x000000010045cbc8 in eval1 ()
> #20 0x00000001004eea76 in eval_list ()
> #21 0x000000010045b09d in eval9 ()
> #22 0x000000010045b703 in eval7 ()
> #23 0x000000010045ba94 in eval6 ()
> #24 0x000000010045c46e in eval4 ()
> #25 0x000000010045c7d1 in eval3 ()
> #26 0x000000010045cbc8 in eval1 ()
> #27 0x000000010045dca2 in eval0_retarg ()
> #28 0x000000010045e43f in eval_expr_ext ()
> #29 0x000000010063aba4 in ex_class ()
> #30 0x0000000100495066 in do_cmdline ()
> #31 0x00000001005ac2d2 in do_source_ext ()
> #32 0x00000001005ae97a in do_source ()
> #33 0x0000000100661cbf in ex_import ()
> #34 0x0000000100495066 in do_cmdline ()
> #35 0x00000001005ac2d2 in do_source_ext ()
> #36 0x00000001005ae97a in do_source ()
> #37 0x0000000100642dc9 in find_imported ()
> #38 0x00000001004766e1 in eval_variable ()
> #39 0x000000010045b38a in eval9 ()
> #40 0x000000010045b703 in eval7 ()
> #41 0x000000010045ba94 in eval6 ()
> #42 0x000000010045c46e in eval4 ()
> #43 0x000000010045c7d1 in eval3 ()
> #44 0x000000010045cbc8 in eval1 ()
> #45 0x000000010045dca2 in eval0_retarg ()
> #46 0x000000010045de52 in eval0 ()
> [...]
>
> I have tried to create a reproducible scenario
> with a short script or set of scripts,
> unsuccessfully.
>
Mit freundlichen Grüßen
Christian
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