bugDDD - Bugs: bug #41485, SourceView.C:8724: assertion...


bug #41485: SourceView.C:8724: assertion `*proc_id == *id' failed

Submitted by:  Peeter Joot <peeterjoot>
Submitted on:  Thu 06 Feb 2014 07:21:48 PM UTC  
Category: NoneSeverity: 3 - Normal
Item Group: NoneStatus: None
Privacy: PublicAssigned to: None
Open/Closed: OpenRelease: None

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Thu 06 Feb 2014 07:21:48 PM UTC, original submission:

SourceView.C: In function `static void SourceView::UpdateGlyphsWorkProc(void, XtIntervalId)':
SourceView.C:8724: assertion `proc_id == id' failed
Aborted (core dumped)

Core was generated by `ddd -d /vbs/common/osse/core/src -d /vbs/common/osse/core/inc -d /vbs/engn/sqe'.
Program terminated with signal 6, Aborted.
#0 0x00007fd2f2280b55 in raise () from /lib64/libc.so.6
(gdb) where
#0 0x00007fd2f2280b55 in raise () from /lib64/libc.so.6
#1 0x00007fd2f2282131 in abort () from /lib64/libc.so.6
#2 0x0000000000428fdd in ddd_assert_fail (assertion=0x622e52 "proc_id == id", file=<value optimized out>, line=<value optimized out>,
function=0x623ce0 "static void SourceView::UpdateGlyphsWorkProc(void, XtIntervalId)") at assert.C:38
#3 0x00000000005a53d1 in SourceView::UpdateGlyphsWorkProc (client_data=0x8aa218, id=<value optimized out>) at SourceView.C:8724
#4 0x0000000000435b53 in MyTimerProc (client_data=0xb89cc0) at TimeOut.C:114
#5 0x00007fd2f3d6374f in ?? () from /usr/lib64/libXt.so.6
#6 0x00007fd2f3d638a9 in XtAppNextEvent () from /usr/lib64/libXt.so.6
#7 0x000000000041441a in process_next_event () at ddd.C:3221
#8 0x00000000004d685d in ddd_main_loop () at mainloop.C:120
#9 0x000000000042673b in main (argc=<value optimized out>, argv=<value optimized out>) at ddd.C:3175

Unfortunately, this assertion doesn't dump the values that it is failing, and the build is optimized, and unavailable from the core:

(gdb) frame 3
#3 0x00000000005a53d1 in SourceView::UpdateGlyphsWorkProc (client_data=0x8aa218, id=<value optimized out>) at SourceView.C:8724
8724 assert(proc_id == id);
(gdb) p id
$1 = <value optimized out>
(gdb) p proc_id
$2 = <value optimized out>

Not sure if the value is available from the regs, since it looks like %rdi gets clobbered by the assert call:

Dump of assembler code for function SourceView::UpdateGlyphsWorkProc(XtPointer, XtIntervalId*):
0x00000000005a5390 <+0>: mov %rbx,-0x20(%rsp)
0x00000000005a5395 <+5>: mov %rbp,-0x18(%rsp)
0x00000000005a539a <+10>: mov %rdi,%rbx
0x00000000005a539d <+13>: mov %r12,-0x10(%rsp)
0x00000000005a53a2 <+18>: mov %r13,-0x8(%rsp)
0x00000000005a53a7 <+23>: sub $0x28,%rsp
0x00000000005a53ab <+27>: test %rdi,%rdi
0x00000000005a53ae <+30>: je 0x5a53e0 <SourceView::UpdateGlyphsWorkProc(XtPointer, XtIntervalId*)+80>
0x00000000005a53b0 <+32>: mov (%rsi),%rax
0x00000000005a53b3 <+35>: cmp %rax,(%rdi)
0x00000000005a53b6 <+38>: je 0x5a53d1 <SourceView::UpdateGlyphsWorkProc(XtPointer, XtIntervalId*)+65>
0x00000000005a53b8 <+40>: mov $0x623ce0,%ecx
0x00000000005a53bd <+45>: mov $0x2214,%edx
0x00000000005a53c2 <+50>: mov $0x622aec,%esi
0x00000000005a53c7 <+55>: mov $0x622e52,%edi
0x00000000005a53cc <+60>: callq 0x428eb0 <ddd_assert_fail(char const, char const, unsigned int, char const*)>
=> 0x00000000005a53d1 <+65>: movq $0x0,(%rdi)
0x00000000005a53d8 <+72>: nopl 0x0(%rax,%rax,1)
0x00000000005a53e0 <+80>: mov 0x3048e9(%rip),%rdi # 0x8a9cd0 <_ZN10SourceView13source_text_wE>

Here's what was in the regs for this frame:

(gdb) info registers
rax 0x0 0
rbx 0x8aa218 9085464
rcx 0xffffffffffffffff -1
rdx 0x6 6
rsi 0x2df0d7 3010775
rdi 0x2df0d7 3010775
rbp 0x7fff349f8ea8 0x7fff349f8ea8
rsp 0x7fff349f8e30 0x7fff349f8e30
r8 0xffffff00 4294967040
r9 0x7fd2f25c0e60 140543985978976
r10 0x8 8
r11 0x246 582
r12 0x8cc7e0 9226208
r13 0x0 0
r14 0x0 0
r15 0x7fff349f8f20 140734076260128
rip 0x5a53d1 0x5a53d1 <SourceView::UpdateGlyphsWorkProc(XtPointer, XtIntervalId*)+65>
eflags 0x246 [ PF ZF IF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0

Peeter Joot <peeterjoot>


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