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Ticket #7311: mythfrontend crashed with SIGSEGV in malloc()

 

 

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mythtv at cvs

Oct 12, 2009, 11:46 AM

Post #1 of 3 (227 views)
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Ticket #7311: mythfrontend crashed with SIGSEGV in malloc()

#7311: mythfrontend crashed with SIGSEGV in malloc()
---------------------------------------------+------------------------------
Reporter: Marc Randolph <mrand [at] pobox> | Owner: ijr
Type: defect | Status: new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: head
Severity: medium | Mlocked: 0
---------------------------------------------+------------------------------
Forwarding upstream:

{{{
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/bin/mythfrontend.real
NonfreeKernelModules: nvidia
Package: mythtv-frontend 0.22.0~trunk22304-0ubuntu1
Uname: Linux 2.6.31-12-generic x86_64

#0 _int_malloc (av=0x7f0248000020, bytes=816) at malloc.c:4404
nb = 832
idx = 52
bin = <value optimized out>
victim = (mchunkptr) 0x7f024803fc50
size = 24320
victim_index = <value optimized out>
remainder = <value optimized out>
remainder_size = <value optimized out>
block = <value optimized out>
bit = <value optimized out>
map = <value optimized out>
fwd = (mchunkptr) 0x7f0248000488
bck = (mchunkptr) 0x7f00480e5a30
__PRETTY_FUNCTION__ = "_int_malloc"
#1 0x00007f026a8657ee in *__GI___libc_malloc (bytes=816) at malloc.c:3638
ar_ptr = (mstate) 0x7f0248000020
victim = <value optimized out>
__PRETTY_FUNCTION__ = "__libc_malloc"
#2 0x00007f025ca46c82 in my_malloc () from
/usr/lib/libmysqlclient_r.so.16
No symbol table info available.
#3 0x00007f025ca43008 in mysql_stmt_init ()
from /usr/lib/libmysqlclient_r.so.16
No symbol table info available.
#4 0x00007f025ce0f128 in QMYSQLResult::prepare (this=0x7f0248fecfe0,
query=@0x7fff26f6a230) at
../../../sql/drivers/mysql/qsql_mysql.cpp:866
r = <value optimized out>
encQuery = {static shared_null = {ref = {_q_value = 27}, alloc =
0,
size = 0, data = 0x7f026b73a6f8 "", array = ""}, static shared_empty =
{
ref = {_q_value = 2}, alloc = 0, size = 0, data = 0x7f026b73a718 "",
array = ""}, d = 0xa3f138}
#5 0x00007f025ce0eacc in QMYSQLResult::reset (this=0x7f0248fecfe0,
query=@0x7fff26f6a230) at
../../../sql/drivers/mysql/qsql_mysql.cpp:660
encQuery = {static shared_null = {ref = {_q_value = 27}, alloc =
0,
size = 0, data = 0x7f026b73a6f8 "", array = ""}, static shared_empty =
{
ref = {_q_value = 2}, alloc = 0, size = 0, data = 0x7f026b73a718 "",
array = ""}, d = 0x7f026b73a860}
numFields = <value optimized out>
#6 0x00007f026caf4196 in QSqlQuery::exec (this=0x7fff26f6a210,
query=@0x7fff26f6a230) at kernel/qsqlquery.cpp:375
No locals.
#7 0x00007f026caf57d3 in QSqlDatabase::exec (this=0x1ab78a8,
query=@0x7fff26f6a230) at kernel/qsqldatabase.cpp:811
r = DWARF-2 expression error: DW_OP_reg operations must be used
either alone or in conjuction with DW_OP_piece.
}}}

If this is not actionable, feel free to close.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7311>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv at cvs

Oct 12, 2009, 6:30 PM

Post #2 of 3 (205 views)
Permalink
Re: Ticket #7311: mythfrontend crashed with SIGSEGV in malloc() [In reply to]

#7311: mythfrontend crashed with SIGSEGV in malloc()
---------------------------------------------+------------------------------
Reporter: Marc Randolph <mrand [at] pobox> | Owner: ijr
Type: defect | Status: infoneeded_new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: head
Severity: medium | Resolution:
Mlocked: 0 |
---------------------------------------------+------------------------------
Changes (by danielk):

* status: new => infoneeded_new


Comment:

Is this repeatable? By itself this is no enough info to do anything. But
it is probably caused by something writing past the end of a memory
allocation. If it is repeatable, valgrind or a similar tool could be used
to find out what the cause is.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7311#comment:1>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv-commits [at] mythtv
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mythtv at cvs

Nov 14, 2009, 7:16 AM

Post #3 of 3 (173 views)
Permalink
Re: Ticket #7311: mythfrontend crashed with SIGSEGV in malloc() [In reply to]

#7311: mythfrontend crashed with SIGSEGV in malloc()
---------------------------------------------+------------------------------
Reporter: Marc Randolph <mrand@…> | Owner: ijr
Type: defect | Status: closed
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: head
Severity: medium | Resolution: invalid
Mlocked: 0 |
---------------------------------------------+------------------------------
Changes (by stuartm):

* status: infoneeded_new => closed
* resolution: => invalid


Comment:

30 days without response.

--
Ticket URL: <http://svn.mythtv.org/trac/ticket/7311#comment:2>
MythTV <http://www.mythtv.org/>
MythTV
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mythtv-commits [at] mythtv
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