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(gdb) info threads
Id Target Id Frame
* 1 Thread 0x7fd791749880 (LWP 50308) talloc_chunk_from_ptr (ptr=0x1) at ../talloc.c:521
(gdb) t 1
[Switching to thread 1 (Thread 0x7fd791749880 (LWP 50308))]
#0 talloc_chunk_from_ptr (ptr=0x1) at ../talloc.c:521
521 if (unlikely((tc->flags & (TALLOC_FLAG_FREE | ~TALLOC_FLAG_MASK)) != talloc_magic)) {
(gdb) bt full
#0 talloc_chunk_from_ptr (ptr=0x1) at ../talloc.c:521
pp = 0x1 <Address 0x1 out of bounds>
tc = <optimized out>
#1 __talloc_with_prefix (tc_ret=<synthetic pointer>, prefix_len=0, size=24, context=0x1) at ../talloc.c:743
tc = 0x0
limit = 0x0
total_len = 120
parent = 0x0
#2 __talloc (tc=<synthetic pointer>, size=24, context=0x1) at ../talloc.c:804
No locals.
#3 _talloc_named_const (name=0x7fd781255300 <Address 0x7fd781255300 out of bounds>, size=24, context=0x1) at ../talloc.c:961
tc = <optimized out>
#4 talloc_named_const (context=<optimized out>, size=24, name=0x7fd781255300 <Address 0x7fd781255300 out of bounds>) at ../talloc.c:1728
No locals.
#5 0x00007fd781243dd0 in ?? ()
No symbol table info available.
#6 0x000055b88ed38ac0 in ?? ()
No symbol table info available.
#7 0x0000000000000000 in ?? ()
No symbol table info available.
(gdb) frame 1
#1 __talloc_with_prefix (tc_ret=<synthetic pointer>, prefix_len=0, size=24, context=0x1) at ../talloc.c:743
743 parent = talloc_chunk_from_ptr(context);
(gdb) set print pretty on
(gdb) p *talloc_chunk_from_ptr
$1 = {struct talloc_chunk *(const void *)} 0x7fd78d3bd6f0 <talloc_chunk_from_ptr>
# less package
sssd-common-1.16.2-13.el7
(gdb) info threads Id Target Id Frame * 1 Thread 0x7fd791749880 (LWP 50308) talloc_chunk_from_ptr (ptr=0x1) at ../talloc.c:521 (gdb) t 1 [Switching to thread 1 (Thread 0x7fd791749880 (LWP 50308))] #0 talloc_chunk_from_ptr (ptr=0x1) at ../talloc.c:521 521 if (unlikely((tc->flags & (TALLOC_FLAG_FREE | ~TALLOC_FLAG_MASK)) != talloc_magic)) { (gdb) bt full #0 talloc_chunk_from_ptr (ptr=0x1) at ../talloc.c:521 pp = 0x1 <Address 0x1 out of bounds> tc = <optimized out> #1 __talloc_with_prefix (tc_ret=<synthetic pointer>, prefix_len=0, size=24, context=0x1) at ../talloc.c:743 tc = 0x0 limit = 0x0 total_len = 120 parent = 0x0 #2 __talloc (tc=<synthetic pointer>, size=24, context=0x1) at ../talloc.c:804 No locals. #3 _talloc_named_const (name=0x7fd781255300 <Address 0x7fd781255300 out of bounds>, size=24, context=0x1) at ../talloc.c:961 tc = <optimized out> #4 talloc_named_const (context=<optimized out>, size=24, name=0x7fd781255300 <Address 0x7fd781255300 out of bounds>) at ../talloc.c:1728 No locals. #5 0x00007fd781243dd0 in ?? () No symbol table info available. #6 0x000055b88ed38ac0 in ?? () No symbol table info available. #7 0x0000000000000000 in ?? () No symbol table info available. (gdb) frame 1 #1 __talloc_with_prefix (tc_ret=<synthetic pointer>, prefix_len=0, size=24, context=0x1) at ../talloc.c:743 743 parent = talloc_chunk_from_ptr(context); (gdb) set print pretty on (gdb) p *talloc_chunk_from_ptr $1 = {struct talloc_chunk *(const void *)} 0x7fd78d3bd6f0 <talloc_chunk_from_ptr> # less package sssd-common-1.16.2-13.el7