Hello gnuCash members,
I hope all is well.
I experienced a crash (segmentation fault) while using the
Scheduled Transactions --> Mortgage & Loan Repayment tool.
This seems to be due to an error in creating the pmt string; i.e.,
For example (see additional information below), it generates
pmt( / : : : 0 : 0 )
which should be
pmt( .05750 / 12.00 : 180.00 : 360000.00 : 0 : 0 )
A possible solution is to add the following 3 functions
to the assistant-loan.cpp -- struct cust_prec_punct:
pattern do_pos_format() const { return {value, none, none, none}; }
pattern do_neg_format() const { return {sign, value, none, none}; }
string_type do_negative_sign() const { return L"-"; }
resulting in:
template<int prec>
struct cust_prec_punct : std::moneypunct_byname<wchar_t, false> {
cust_prec_punct(const char* name) : moneypunct_byname(name) {}
int do_frac_digits() const { return prec; }
pattern do_pos_format() const { return {value, none, none, none}; }
pattern do_neg_format() const { return {sign, value, none, none}; }
string_type do_negative_sign() const { return L"-"; }
};
I hope this information is helpful.
respectfully,
guardian
== see additional information below ==
...............................................................................
Steps to Reproduce this Issue:
1. Navigate to Actions -> Scheduled Transactions -> Mortgage & Loan Repayment.
2. Loan Details:
Loan Account: Liabilities:Loans:Mortgage Loan
Amount: 360000.00
Interest Rate: Interest Rate 5.750
Type: Fixed Rate
Start Date: 08/01/2026
Length: 180 Months
Months Remaining: 180
3. Loan Repayment Options: none of these options were selected on this page
4. Loan Repayment:
Name: Loan
Amount: pmt( / : : 0:0)
Payment From: Assets:Current Assets
Principal To: Liabilities:Loans:Mortgage Loan
Interest To: Expenses:Interest:Mortgage Interest
Frequency: Monthly
Start Date: 08/01/26
Every: 1 months
On the: 1st
execpt on weekends: No change
Note: clicking "next" results in a segmentation fault
Possibly due to the "pmt( / : : 0:0)" in Amount gui entry
...............................................................................
output from gdb (including backtrace):
Note: downloaded current version of gnucash (version 5.16) for testing.
luke@mint:~/temp/swe/gnucash-testing$ gdb gnucash
GNU gdb (Ubuntu 15.1-1ubuntu1~24.04.1) 15.1
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Reading symbols from gnucash...
(No debugging symbols found in gnucash)
(gdb) run
Starting program: /usr/bin/gnucash
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffea1ca6c0 (LWP 1711777)]
[New Thread 0x7fffe17ff6c0 (LWP 1711778)]
[New Thread 0x7fffe99c96c0 (LWP 1711779)]
[New Thread 0x7fffe37576c0 (LWP 1711790)]
[New Thread 0x7fffe2f566c0 (LWP 1711791)]
[New Thread 0x7fffe21496c0 (LWP 1711792)]
[New Thread 0x7fffe0bdd6c0 (LWP 1711793)]
[New Thread 0x7fffcbfff6c0 (LWP 1711794)]
[New Thread 0x7fffcb7fe6c0 (LWP 1711795)]
[New Thread 0x7fffcaffd6c0 (LWP 1711796)]
[New Thread 0x7fffca7fc6c0 (LWP 1711797)]
[New Thread 0x7fffc9ffb6c0 (LWP 1711798)]
[New Thread 0x7fffc97fa6c0 (LWP 1711799)]
[New Thread 0x7fffc8ff96c0 (LWP 1711800)]
[Detaching after fork from child process 1711812]
[New Thread 0x7fffc5f0b6c0 (LWP 1711824)]
[Thread 0x7fffc5f0b6c0 (LWP 1711824) exited]
[Thread 0x7fffe21496c0 (LWP 1711792) exited]
Thread 1 "gnucash" received signal SIGSEGV, Segmentation fault.
0x00007ffff7161403 in ?? () from
/usr/lib/x86_64-linux-gnu/gnucash/libgnc-expressions.so
(gdb) bt full
#0 0x00007ffff7161403 in ??? () at
/usr/lib/x86_64-linux-gnu/gnucash/libgnc-expressions.so
#1 0x00007ffff715b103 in ??? () at
/usr/lib/x86_64-linux-gnu/gnucash/libgnc-expressions.so
#2 0x00007ffff715b509 in ??? () at
/usr/lib/x86_64-linux-gnu/gnucash/libgnc-expressions.so
#3 0x00007ffff715ce08 in parse_string () at
/usr/lib/x86_64-linux-gnu/gnucash/libgnc-expressions.so
#4 0x00007ffff7161a2a in gnc_exp_parser_parse_separate_vars () at
/usr/lib/x86_64-linux-gnu/gnucash/libgnc-expressions.so
#5 0x00007ffff7ca33e9 in loan_assistant_prepare () at
/usr/lib/x86_64-linux-gnu/gnucash/libgnc-gnome.so
#6 0x00007ffff64e2cf7 in g_cclosure_marshal_VOID__OBJECTv () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#7 0x00007ffff650390b in ??? () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#8 0x00007ffff65047c1 in g_signal_emit_valist () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#9 0x00007ffff6504883 in g_signal_emit () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#10 0x00007ffff73fe73b in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#11 0x00007ffff64e2cf7 in g_cclosure_marshal_VOID__OBJECTv () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#12 0x00007ffff65046bd in ??? () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#13 0x00007ffff65047c1 in g_signal_emit_valist () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#14 0x00007ffff6504883 in g_signal_emit () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#15 0x00007ffff73fe73b in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#16 0x00007ffff73fe99b in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#17 0x00007ffff73fec2e in gtk_assistant_next_page () at
/lib/x86_64-linux-gnu/libgtk-3.so.0
#18 0x00007ffff65046bd in ??? () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#19 0x00007ffff65047c1 in g_signal_emit_valist () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#20 0x00007ffff6504883 in g_signal_emit () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#21 0x00007ffff7416f08 in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#22 0x00007ffff65046bd in ??? () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#23 0x00007ffff65047c1 in g_signal_emit_valist () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#24 0x00007ffff6504883 in g_signal_emit () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#25 0x00007ffff7416ccd in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#26 0x00007ffff73d5b43 in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#27 0x00007ffff65046bd in ??? () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#28 0x00007ffff65047c1 in g_signal_emit_valist () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#29 0x00007ffff6504883 in g_signal_emit () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#30 0x00007ffff74f22f3 in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#31 0x00007ffff64e88da in g_cclosure_marshal_VOID__BOXEDv () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#32 0x00007ffff65046bd in ??? () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#33 0x00007ffff65047c1 in g_signal_emit_valist () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#34 0x00007ffff6504883 in g_signal_emit () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#35 0x00007ffff74e9f5c in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#36 0x00007ffff74f1ccb in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#37 0x00007ffff74f55ca in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#38 0x00007ffff74b4ab3 in gtk_event_controller_handle_event () at
/lib/x86_64-linux-gnu/libgtk-3.so.0
#39 0x00007ffff769a6d8 in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#40 0x00007ffff73d42f7 in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#41 0x00007ffff65046bd in ??? () at /lib/x86_64-linux-gnu/libgobject-2.0.so.0
#42 0x00007ffff65047c1 in g_signal_emit_valist () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#43 0x00007ffff6504883 in g_signal_emit () at
/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#44 0x00007ffff76a2bf4 in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#45 0x00007ffff753f390 in ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#46 0x00007ffff753ff2a in gtk_main_do_event () at
/lib/x86_64-linux-gnu/libgtk-3.so.0
#47 0x00007ffff5cb0407 in ??? () at /lib/x86_64-linux-gnu/libgdk-3.so.0
#48 0x00007ffff5d09e2e in ??? () at /lib/x86_64-linux-gnu/libgdk-3.so.0
#49 0x00007ffff6cfa585 in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#50 0x00007ffff6d59977 in ??? () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#51 0x00007ffff6cfaf47 in g_main_loop_run () at
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#52 0x00007ffff753abc5 in gtk_main () at /lib/x86_64-linux-gnu/libgtk-3.so.0
#53 0x00007ffff7b746d3 in gnc_ui_start_event_loop () at
/usr/lib/x86_64-linux-gnu/gnucash/gnucash/libgnc-gnome-utils.so
#54 0x00005555555677eb in ??? ()
#55 0x00007ffff7dab258 in ??? () at /lib/x86_64-linux-gnu/libguile-3.0.so.1
#56 0x00007ffff7d915b6 in ??? () at /lib/x86_64-linux-gnu/libguile-3.0.so.1
#57 0x00007ffff7e1c013 in ??? () at /lib/x86_64-linux-gnu/libguile-3.0.so.1
#58 0x00007ffff7e2619b in scm_call_n () at
/lib/x86_64-linux-gnu/libguile-3.0.so.1
--Type <RET> for more, q to quit, c to continue without paging--c
#59 0x00007ffff7d92e42 in scm_call_2 () at
/lib/x86_64-linux-gnu/libguile-3.0.so.1
#60 0x00007ffff7e3619d in ??? () at /lib/x86_64-linux-gnu/libguile-3.0.so.1
#61 0x00007ffff7e13570 in scm_c_catch () at
/lib/x86_64-linux-gnu/libguile-3.0.so.1
#62 0x00007ffff7d93b12 in scm_c_with_continuation_barrier () at
/lib/x86_64-linux-gnu/libguile-3.0.so.1
#63 0x00007ffff7e1ac15 in ??? () at /lib/x86_64-linux-gnu/libguile-3.0.so.1
#64 0x00007ffff5c2b04e in GC_call_with_stack_base () at
/lib/x86_64-linux-gnu/libgc.so.1
#65 0x00007ffff7e13460 in scm_with_guile () at
/lib/x86_64-linux-gnu/libguile-3.0.so.1
#66 0x00007ffff7db459b in scm_boot_guile () at
/lib/x86_64-linux-gnu/libguile-3.0.so.1
#67 0x000055555556a58d in Gnucash::Gnucash::start(int, char**) ()
#68 0x0000555555560d89 in main ()
(gdb) quit
A debugging session is active.
Inferior 1 [process 1711760] will be killed.
Quit anyway? (y or n) y
luke@mint:~/temp/swe/gnucash-testing$
...............................................................................
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