mythfrontend crashes on mac

[JYA]

Current master will always crash in SSDP instance on mac... Crashes never occurs in exactly the same location, but always in the thread running SSDP, in ProcessData?

(gdb) bt
#0  0x00007fff8ce52212 in __pthread_kill ()
#1  0x00007fff8b226b54 in pthread_kill ()
#2  0x00007fff8b26adce in abort ()
#3  0x00007fff8b246905 in szone_error ()
#4  0x00007fff8b24b3ed in tiny_malloc_from_free_list ()
#5  0x00007fff8b24bb38 in szone_malloc_should_clear ()
#6  0x00007fff8b23e1b3 in malloc_zone_malloc ()
#7  0x00007fff8b23ec07 in malloc ()
#8  0x00007fff92085347 in operator new ()
#9  0x0000000106ba5334 in QHostAddress::QHostAddress ()
#10 0x0000000102740b4c in qt_socket_getportaddr (sa=0x10b580930, port=0x10813ac18, addr=0x10813ac20) at msocketdevice_unix.cpp:114
#11 0x00000001027407ff in MSocketDevice::readData (this=0x10813abf0, data=0x1081367e8 "HTTP/1.1 200 OK\r\nCACHE-CONTROL: max-age=\001\n\250\300", maxlen=896) at msocketdevice_unix.cpp:1038
#12 0x0000000106d8b023 in QIODevice::read ()
#13 0x000000010275b060 in MSocketDevice::readBlock (this=0x10813abf0, data=0x1081367e8 "HTTP/1.1 200 OK\r\nCACHE-CONTROL: max-age=\001\n\250\300", maxlen=896) at msocketdevice.h:124
#14 0x0000000102756465 in SSDP::ProcessData (this=0x1082719d0, pSocket=0x10813abf0) at ssdp.cpp:326
#15 0x00000001027562ee in SSDP::run (this=0x1082719d0) at ssdp.cpp:301
#16 0x00000001028ba49a in MThreadInternal::run (this=0x108271a40) at mthread.cpp:79
#17 0x0000000106cee4ba in QThreadPrivate::start ()
#18 0x00007fff8b2257a2 in _pthread_start ()
#19 0x00007fff8b2121e1 in thread_start ()

[JYA]

Here is the console output:

2013-04-23 21:00:55.824995 I  Setup Interrupt: 2 handler
2013-04-23 21:00:55.825154 I  Setup Terminated: 15 handler
2013-04-23 21:00:55.825176 I  Setup Segmentation fault: 11 handler
2013-04-23 21:00:55.825191 I  Setup Abort trap: 6 handler
2013-04-23 21:00:55.825202 I  Setup Bus error: 10 handler
2013-04-23 21:00:55.825214 I  Setup Floating point exception: 8 handler
2013-04-23 21:00:55.825227 I  Setup Illegal instruction: 4 handler
2013-04-23 21:00:55.825246 I  Setup User defined signal 1: 30 handler
2013-04-23 21:00:55.825263 I  Setup User defined signal 2: 31 handler
2013-04-23 21:00:55.825613 C  mythfrontend version: master [v0.27-pre2-975-ga04cb4e] www.mythtv.org
2013-04-23 21:00:55.825641 C  Qt version: compile: 4.8.3, runtime: 4.8.3
2013-04-23 21:00:55.825660 N  Enabled verbose msgs:  general audio playback
2013-04-23 21:00:55.825688 N  Setting Log Level to LOG_DEBUG
2013-04-23 21:00:55.826407 D  Relative PREFIX! (../Resources), appDir=/Users/jyavenard/Work/mythtv/.osx-packager/build/bin
2013-04-23 21:00:55.826529 E  Relative PREFIX does not resolve, using /Users/jyavenard/Work/mythtv/.osx-packager/build/bin
2013-04-23 21:00:55.826537 I  Added logging to the console
2013-04-23 21:00:55.826570 N  Using runtime prefix = /Users/jyavenard/Work/mythtv/.osx-packager/build/bin
2013-04-23 21:00:55.826591 N  Using configuration directory = /Users/jyavenard/.mythtv
2013-04-23 21:00:55.826877 I  Assumed character encoding: 
2013-04-23 21:00:55.826896 W  This application expects to be running a locale that specifies a UTF-8 codeset, and many features may behave improperly with your current language settings. Please set the LC_ALL or LC_CTYPE, and LANG variable(s) in the environment in which this program is executed to include a UTF-8 codeset (such as 'en_US.UTF-8').
2013-04-23 21:00:55.829685 N  Empty LocalHostName.
2013-04-23 21:00:55.829708 I  Using localhost value of jyamba
2013-04-23 21:00:55.829869 I  Testing network connectivity to '192.168.10.11'
2013-04-23 21:00:55.830272 I  Starting process manager
2013-04-23 21:00:55.830310 I  Starting process signal handler
2013-04-23 21:00:55.830453 I  Starting IO manager (read)
2013-04-23 21:00:55.830502 I  Starting IO manager (write)
2013-04-23 21:00:56.039575 I  Starting mythlogserver
2013-04-23 21:00:56.058547 D  FindDatabase() - Success!
2013-04-23 21:00:56.080379 N  Setting QT default locale to en_AU
2013-04-23 21:00:56.080482 I  Current locale en_AU
2013-04-23 21:00:56.080611 E  No locale defaults file for en_AU, skipping
2013-04-23 21:00:56.134421 I  Added logging to mythlogserver at TCP:35327
2013-04-23 21:00:56.141818 E  AppleRemote::_findAppleRemoteDevice(AppleIRController) failed
2013-04-23 21:00:56.141965 E  AppleRemote::_findAppleRemoteDevice(AppleTVIRReceiver) failed
2013-04-23 21:00:56.141995 E  AppleRemote::startListening() failed
2013-04-23 21:00:56.142035 I  UDPListener: Enabling
2013-04-23 21:00:56.175185 D  Adding link-local 'FE80::1%lo0' to address list.
2013-04-23 21:00:56.175329 D  Adding IPv4 loopback to address list.
2013-04-23 21:00:56.175403 D  Adding IPv6 loopback to address list.
2013-04-23 21:00:56.175531 D  Adding link-local 'FE80::60C:CEFF:FEDB:8018%en0' to address list.
2013-04-23 21:00:56.175707 D  Adding '192.168.10.17' to address list.
2013-04-23 21:00:56.175815 D  Adding link-local 'FE80::95E1:9BB6:B16D:1D18%utun0' to address list.
2013-04-23 21:00:56.175951 D  Adding '[fdc8:59b:68fd:a31:95e1:9bb6:b16d:1d18]' to address list.
2013-04-23 21:00:56.176026 D  Adding '192.168.122.1' to address list.
2013-04-23 21:00:56.176094 D  Adding '172.16.45.1' to address list.
2013-04-23 21:00:56.183126 I  Binding to UDP 127.0.0.1:6948
2013-04-23 21:00:56.183523 I  Binding to UDP 192.168.10.17:6948
2013-04-23 21:00:56.183865 I  Binding to UDP 192.168.122.1:6948
2013-04-23 21:00:56.184180 I  Binding to UDP 172.16.45.1:6948
2013-04-23 21:00:56.184533 I  Binding to UDP [fe80::1%lo0]:6948
2013-04-23 21:00:56.184926 I  Binding to UDP [::1]:6948
2013-04-23 21:00:56.185274 I  Binding to UDP [fe80::60c:ceff:fedb:8018%en0]:6948
2013-04-23 21:00:56.185835 I  Binding to UDP [fe80::95e1:9bb6:b16d:1d18%utun0]:6948
2013-04-23 21:00:56.186365 I  Binding to UDP [fdc8:59b:68fd:a31:95e1:9bb6:b16d:1d18]:6948
2013-04-23 21:00:56.186733 I  Binding to UDP 192.168.10.255:6948
2013-04-23 21:00:56.187166 I  Binding to UDP 192.168.122.255:6948
2013-04-23 21:00:56.187568 I  Binding to UDP 172.16.45.255:6948
2013-04-23 21:00:56.603601 N  Desktop video mode: 1366x768 60.000 Hz
2013-04-23 21:00:56.718231 I  max_width: 1366 max_height: 768
2013-04-23 21:00:56.737138 I  Listening on TCP 127.0.0.1:6547
2013-04-23 21:00:56.737464 I  Listening on TCP 192.168.10.17:6547
2013-04-23 21:00:56.737716 I  Listening on TCP 192.168.122.1:6547
2013-04-23 21:00:56.737978 I  Listening on TCP 172.16.45.1:6547
2013-04-23 21:00:56.738278 I  Listening on TCP [fe80::1%lo0]:6547
2013-04-23 21:00:56.738512 I  Listening on TCP [::1]:6547
2013-04-23 21:00:56.738766 I  Listening on TCP [fe80::60c:ceff:fedb:8018%en0]:6547
2013-04-23 21:00:56.739144 I  Listening on TCP [fe80::95e1:9bb6:b16d:1d18%utun0]:6547
2013-04-23 21:00:56.739543 I  Listening on TCP [fdc8:59b:68fd:a31:95e1:9bb6:b16d:1d18]:6547
mythfrontend(9185,0x10b52f000) malloc: *** error for object 0x108b4a1a8: incorrect checksum for freed object - object was probably modified after being freed.

[JYA]

another backtrace:

(gdb) bt
#0  0x00007fff8ce52212 in __pthread_kill ()
#1  0x00007fff8b226b54 in pthread_kill ()
#2  0x00007fff8b26adce in abort ()
#3  0x00007fff8b246905 in szone_error ()
#4  0x00007fff8b24b3ed in tiny_malloc_from_free_list ()
#5  0x00007fff8b24bb38 in szone_malloc_should_clear ()
#6  0x00007fff8b23e1b3 in malloc_zone_malloc ()
#7  0x00007fff8b23ec07 in malloc ()
#8  0x0000000106d3f8b2 in QString::QString ()
#9  0x0000000106d3f9cb in QString::mid ()
#10 0x0000000106d48d94 in QString::split ()
#11 0x00000001027569c0 in SSDP::ProcessData (this=0x107663020, pSocket=0x107660a80) at ssdp.cpp:358
#12 0x00000001027562ee in SSDP::run (this=0x107663020) at ssdp.cpp:301
#13 0x00000001028ba49a in MThreadInternal::run (this=0x107663090) at mthread.cpp:79
#14 0x0000000106cee4ba in QThreadPrivate::start ()
#15 0x00007fff8b2257a2 in _pthread_start ()
#16 0x00007fff8b2121e1 in thread_start ()
(gdb) 

[JYA]

Looks like it's always reading the maximum size, making it write much data than the buffer can contain.

suggested patch attached

[danielk]

jyavenard, this patch looks good.

[Jean-Yves Avenard <jyavenard@…>]

In 87e62f5ac01d1d1e40f0f4ed9998786119da22ed/mythtv:

Error: Processor CommitTicketReference failed

GIT backend not available