[mythtv] backtrack
Chad J McQuinn
chadmcquinn at insightbb.com
Mon Feb 23 01:19:07 EST 2004
Using CVS as of this past Saturday, mythbackend segfaults periodically
on my master backend. It seems that it is happy to sit idle for a few
hours, but when a scheduled recording kicks in it will (sometimes)
segfault. Sometimes it is not until the recording has been going for a
while, and sometimes it is right away.
The system is an Athlon 2600XP, ASUS a7v8x/x mb, 512MB ram. This is the
master back end which has two btxxx cards. There is also a slave
backend with a PVR250, which does NOT generally segfault (at least not
when the master backend does).
--------
(gdb) thread apply all bt full
Thread 12 (Thread 163851 (LWP 2763)):
#0 0x411c2568 in sigsuspend () from /lib/i686/libc.so.6
No symbol table info available.
#1 0x41074478 in __pthread_wait_for_restart_signal ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#2 0x41070c5b in pthread_cond_wait at GLIBC_2.0 ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#3 0x40eba25f in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#4 0x0807c4d3 in ProcessRequestThread::run() (
this=0x43c5e5c0) at mainserver.cpp:61
No locals.
#5 0x40bffff8 in QProc::~QProc() ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#6 0x41072811 in pthread_start_thread ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#7 0x41072915 in pthread_start_thread_event ()
from /lib/i686/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
Thread 11 (Thread 147466 (LWP 2762)):
#0 0x411c2568 in sigsuspend () from /lib/i686/libc.so.6
No symbol table info available.
#1 0x41074478 in __pthread_wait_for_restart_signal ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#2 0x41070c5b in pthread_cond_wait at GLIBC_2.0 ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#3 0x40eba25f in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#4 0x0807c4d3 in ProcessRequestThread::run() (
this=0x43c52948) at mainserver.cpp:61
No locals.
#5 0x40bffff8 in QProc::~QProc() ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#6 0x41072811 in pthread_start_thread ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#7 0x41072915 in pthread_start_thread_event ()
---Type <return> to continue, or q <return> to quit---
from /lib/i686/libpthread.so.0
No symbol table info available.
Thread 10 (Thread 131081 (LWP 2761)):
#0 0x411c2568 in sigsuspend () from /lib/i686/libc.so.6
No symbol table info available.
#1 0x41074478 in __pthread_wait_for_restart_signal ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#2 0x41070c5b in pthread_cond_wait at GLIBC_2.0 ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#3 0x40eba25f in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#4 0x0807c4d3 in ProcessRequestThread::run() (
this=0x43c38420) at mainserver.cpp:61
No locals.
#5 0x40bffff8 in QProc::~QProc() ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#6 0x41072811 in pthread_start_thread ()
from /lib/i686/libpthread.so.0
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#7 0x41072915 in pthread_start_thread_event ()
from /lib/i686/libpthread.so.0
No symbol table info available.
Thread 9 (Thread 114696 (LWP 2760)):
#0 0x411c2568 in sigsuspend () from /lib/i686/libc.so.6
No symbol table info available.
#1 0x41074478 in __pthread_wait_for_restart_signal ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#2 0x41070c5b in pthread_cond_wait at GLIBC_2.0 ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#3 0x40eba25f in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#4 0x0807c4d3 in ProcessRequestThread::run() (
this=0x43c0e5e0) at mainserver.cpp:61
No locals.
#5 0x40bffff8 in QProc::~QProc() ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#6 0x41072811 in pthread_start_thread ()
from /lib/i686/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#7 0x41072915 in pthread_start_thread_event ()
from /lib/i686/libpthread.so.0
No symbol table info available.
Thread 8 (Thread 98311 (LWP 2759)):
#0 0x411c2568 in sigsuspend () from /lib/i686/libc.so.6
No symbol table info available.
#1 0x41074478 in __pthread_wait_for_restart_signal ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#2 0x41070c5b in pthread_cond_wait at GLIBC_2.0 ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#3 0x40eba25f in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#4 0x0807c4d3 in ProcessRequestThread::run() (
this=0x43c0f9b0) at mainserver.cpp:61
No locals.
#5 0x40bffff8 in QProc::~QProc() ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#6 0x41072811 in pthread_start_thread ()
---Type <return> to continue, or q <return> to quit---
from /lib/i686/libpthread.so.0
No symbol table info available.
#7 0x41072915 in pthread_start_thread_event ()
from /lib/i686/libpthread.so.0
No symbol table info available.
Thread 7 (Thread 81926 (LWP 2758)):
#0 0x41247be6 in nanosleep () from /lib/i686/libc.so.6
No symbol table info available.
#1 0x00000000 in ?? ()
No symbol table info available.
Thread 6 (Thread 65541 (LWP 2757)):
#0 0x41247be6 in nanosleep () from /lib/i686/libc.so.6
No symbol table info available.
#1 0x00000000 in ?? ()
No symbol table info available.
Thread 5 (Thread 49156 (LWP 2756)):
#0 0x41270ef1 in select () from /lib/i686/libc.so.6
No symbol table info available.
#1 0x410601cc in typeinfo for QMotifStyle ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#2 0x40e3b04c in QSocket::waitForMore(int, bool*) const
() from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#3 0x40e3b09e in QSocket::waitForMore(int) const ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#4 0x40746534 in ReadStringList(QSocket*, QStringList&) (
socket=0x43cb4c30, list=@0x4338b82c) at util.cpp:345
sizestr = <incomplete type>
size = 0
utf8 = <incomplete type>
read = 439
zerocnt = 1127791732
str = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x4103ed40, static shared_null = 0x80acc98}
#5 0x0807c93b in PlaybackSock::SendReceiveStringList(QStringList&)
(this=0x80be3e8, strlist=@0x4338b82c)
at playbacksock.cpp:42
ok = 67
#6 0x0807d61c in PlaybackSock::StartRecording(int, ProgramInfo*)
(this=0x80be3e8, capturecardnum=11,
pginfo=0x43c22978) at playbacksock.cpp:173
---Type <return> to continue, or q <return> to quit---
strlist = {<QValueList<QString>> = {
sh = 0x43c9e018}, <No data fields>}
ret = 1089368841
#7 0x08058caa in EncoderLink::StartRecording(ProgramInfo*)
(this=0x80db878, rec=0x43c22978) at encoderlink.cpp:250
retval = 0
#8 0x08084f3f in Scheduler::RunScheduler() (
this=0x80d16d8) at scheduler.cpp:1395
msg = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x80acc98, static shared_null = 0x80acc98}
lockit = {mtx = 0x80d12f0}
retval = 1
recIter = {<_List_iterator_base> = {
_M_node = 0x43c99fe0}, <No data fields>}
prerollseconds = 120
secsleft = -2
nexttv = (EncoderLink *) 0x80db878
nextRecording = (ProgramInfo *) 0x43c22978
nextrectime = {d = {jd = 2453058}, t = {
ds = 68400000}}
curtime = {d = {jd = 2453058}, t = {
ds = 68281122}}
---Type <return> to continue, or q <return> to quit---
lastupdate = {d = {jd = 2453058}, t = {
ds = 64920589}}
recordfileprefix = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x80dcae8, static shared_null = 0x80acc98}
startIter = {<_List_iterator_base> = {
_M_node = 0x43c99ee0}, <No data fields>}
blockShutdown = true
idleSince = {d = {jd = 0}, t = {ds = 0}}
idleTimeoutSecs = 0
idleWaitForRecordingTime = 15
firstRun = false
#9 0x080863ef in Scheduler::SchedulerThread(void*) (
param=0x80d16d8) at scheduler.cpp:1594
sched = (Scheduler *) 0x80d16d8
#10 0x41072811 in pthread_start_thread ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#11 0x41072915 in pthread_start_thread_event ()
from /lib/i686/libpthread.so.0
No symbol table info available.
Thread 4 (Thread 32771 (LWP 2755)):
---Type <return> to continue, or q <return> to quit---
#0 0x41247be6 in nanosleep () from /lib/i686/libc.so.6
No symbol table info available.
#1 0x00000000 in ?? ()
No symbol table info available.
Thread 3 (Thread 16386 (LWP 2753)):
#0 0x4107774b in write () from /lib/i686/libpthread.so.0
No symbol table info available.
#1 0x41aa54c8 in _db_process_ ()
from /usr/lib/libmysqlclient.so.12
No symbol table info available.
#2 0x41a8fa2a in net_real_write ()
from /usr/lib/libmysqlclient.so.12
No symbol table info available.
#3 0x41a8f5c8 in net_flush ()
from /usr/lib/libmysqlclient.so.12
No symbol table info available.
#4 0x41a8f82a in net_write_command ()
from /usr/lib/libmysqlclient.so.12
No symbol table info available.
#5 0x41a785db in simple_command ()
from /usr/lib/libmysqlclient.so.12
No symbol table info available.
#6 0x41a7b29b in mysql_send_query ()
---Type <return> to continue, or q <return> to quit---
from /usr/lib/libmysqlclient.so.12
No symbol table info available.
#7 0x41a7b4d0 in mysql_real_query ()
from /usr/lib/libmysqlclient.so.12
No symbol table info available.
#8 0x41a5ab71 in QMYSQLResult::reset(QString const&) ()
from /usr/lib/qt3/plugins/sqldrivers/libqsqlmysql.so
No symbol table info available.
#9 0x40e927be in QSqlQuery::exec(QString const&) ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#10 0x40e96640 in QSqlDatabase::exec(QString const&) const
() from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#11 0x40709221 in MythContext::KickDatabase(QSqlDatabase*)
(db=0x80d1248) at mythcontext.cpp:715
result = <incomplete type>
i = 0
query = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x80daed8, static shared_null = 0x80acc98}
#12 0x402fd776 in TVRec::SetChannel(bool) (
this=0x80d5a58, needopen=true) at tv_rec.cpp:729
---Type <return> to continue, or q <return> to quit---
thequery = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x4003be18, static shared_null = 0x80acc98}
query = <incomplete type>
inputname = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x4238bbe0, static shared_null = 0x80acc98}
chanstr = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x4238b95c, static shared_null = 0x80acc98}
#13 0x402fb57c in TVRec::HandleStateChange() (
this=0x80d5a58) at tv_rec.cpp:412
tmpInternalState = kState_None
changed = false
startRecorder = false
closeRecorder = false
killRecordingFile = false
statename = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x80d1180, static shared_null = 0x80acc98}
---Type <return> to continue, or q <return> to quit---
origname = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x80d4a40, static shared_null = 0x80acc98}
#14 0x402fdca1 in TVRec::RunTV() (this=0x80d5a58)
at tv_rec.cpp:783
No locals.
#15 0x402fdc3e in TVRec::EventThread(void*) (
param=0x80d5a58) at tv_rec.cpp:767
thetv = (TVRec *) 0x80d5a58
#16 0x41072811 in pthread_start_thread ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#17 0x41072915 in pthread_start_thread_event ()
from /lib/i686/libpthread.so.0
No symbol table info available.
Thread 2 (Thread 32769 (LWP 2752)):
#0 0x4126f537 in poll () from /lib/i686/libc.so.6
No symbol table info available.
#1 0x4107196e in __pthread_manager ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#2 0x41071bbb in __pthread_manager_event ()
---Type <return> to continue, or q <return> to quit---
from /lib/i686/libpthread.so.0
No symbol table info available.
Thread 1 (Thread 16384 (LWP 2744)):
#0 0x411c2568 in sigsuspend () from /lib/i686/libc.so.6
No symbol table info available.
#1 0x41074478 in __pthread_wait_for_restart_signal ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#2 0x41075e40 in __pthread_alt_lock ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#3 0x41072d07 in pthread_mutex_lock ()
from /lib/i686/libpthread.so.0
No symbol table info available.
#4 0x40eb923c in QRecursiveMutexPrivate::lock() ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#5 0x40eb9644 in QMutex::lock() ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#6 0x40bc3459 in QEventLoop::processEvents(unsigned) ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#7 0x40c1f066 in QEventLoop::enterLoop() ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#8 0x40c1ef08 in QEventLoop::exec() ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#9 0x40c0b3d1 in QApplication::exec() ()
from /usr/lib/qt3/lib/libqt-mt.so.3
No symbol table info available.
#10 0x0805e422 in main (argc=5, argv=0xbffff3a4)
at main.cpp:503
a = <incomplete type>
logfile = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x80b5180, static shared_null = 0x80acc98}
binname = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x80b51b8, static shared_null = 0x80acc98}
verboseString = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x80b51f8, static shared_null = 0x80acc98}
---Type <return> to continue, or q <return> to quit---
daemonize = false
printsched = false
nosched = false
printexpire = false
logfd = 3
pidfs = <incomplete type>
db = (struct QSqlDatabase *) 0x80bdb70
subthread = (struct QSqlDatabase *) 0x80b8678
expthread = (struct QSqlDatabase *) 0x80bdf48
transthread = (struct QSqlDatabase *) 0x80be9f8
msdb = (struct QSqlDatabase *) 0x80be898
port = 6543
statusport = 6544
myip = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x80d1360, static shared_null = 0x80acc98}
masterip = {static null = {
static null = <same as static member of an already seen type>, d =
0x80acc98, static shared_null = 0x80acc98},
d = 0x80d1a60, static shared_null = 0x80acc98}
ismaster = true
runsched = true
expdb = (struct QSqlDatabase *) 0x80bdf48
---Type <return> to continue, or q <return> to quit---
trandb = (struct QSqlDatabase *) 0x80be9f8
#11 0x411af7f7 in __libc_start_main ()
from /lib/i686/libc.so.6
No symbol table info available.
#0 0x4107774b in write () from /lib/i686/libpthread.so.0
(gdb)
(gdb)
(gdb)
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