mythtv segfaults at random

splaq · n00b Joined: 09 May 2005 Posts: 20

MythTV is segfaulting at random..why?..im not sure why it's doing this..i use mythweb for the interface and mythfrontend, it seems to be more frequent with mythweb if i dont touch it, it seems to do alright, but when i start adding shows it'll segfault, i have V 0.18.1 for mythtv and mythweb, mythweb is running on my server system cause this one does'nt have apache or any of that on it..the mysql DB however is on this system with mythweb..

my system is a P4 3.06 with 512MB ram, radeon 9800 pro 120GB 7200rpm WD1200, lite-on DVD+RW
gentoo-2.6.11-r9 kernel
win-tv-go tv tuner bt87x chipset

im not sure what info to display, it also seems to be more frequent if i run the mythtv init script
the way i figured out it was segfaulting is mythbackend --verbose all and watched till it finally segfaulted..it does'nt give any other info other than "Segmentation Fault"
has anyone else ever had this problem?..i have changed my CFLAGS and tried emerge -e world...but that kept crashing(i thing thats to the gig of ram that's currently sitting on my desk..my buddy gave it to me and said it may or may not work..but i get weird errors with linux crashing if i use that ram..it's corsair XMS DDR400 maybe the mobo just cant handle it?" but either way i think that ram is bad...) anyways im not really sure what else to say..anything youo wanna know just ask

thanks in advance and for the record i know i cant spell

bkunlimited · l33t Joined: 18 Jun 2004 Posts: 672

to make sure if the memory is the problem or not run memtest from the livecd. If this doesn't report an error paste your CFLAGS

splaq · n00b Joined: 09 May 2005 Posts: 20

I've ran memtest on that memory before...it was taking forever...did one pass before i stopped it though...uhm..
i may not have been that clear when i posted that this morning...the ram that's in my system right now a 512 meg stick of DDR400 PC3200 is in the computer right now...no weird errors or crashes...with the gig or corsair i was getting weird system crashes dumping lots of debugging msg's to dmesg and /var/log/messages (note..the gig of ram is a compleatly un-related issue...)

my CFLAGS consist of

CFLAGS="-march=pentium4 -O2 -pipe -fomit-frame-pointer -msse2 -mmmx"

and well hell here's the rest of my make.conf file

CHOST="i686-pc-linux-gnu"
CXXFLAGS="${CFLAGS}"
MAKEOPTS="-j3"
USE="lirc mysql unicode v4l fame dv divx4linux dvdread oss alsa sse sse2 qt mmx gnome kde dvd dvdr cdr X usb sdk"

i may be speaking too soon..but im going to say it anyways...i just realized i had freevo installed to..i wanted to check it out...well i unmerged that and it seems to be working ok..we'll see

edit #2...
well, that did'nt work

flindt

I am also running mythtv 0.18.1 and I am getting segfaults as well.
Only mine are not random at all, as soon as I try to use any on screen menu mythfrontend segfaults. Mythfrontend does this on two maschines at exactly the same input, both when run on the backend server and on a remote client.

I am confident that it is not a HW issue due as it does it every time. (Also I have checked with memtest86 and found no problems). The server is running all stable (x86) except the madwifi-drivers, the client has no unstable packages installed.

The important parts of my make.conf on the client looks like this

splaq · n00b Joined: 09 May 2005 Posts: 20

The database error could possibly be the problem there, it's executing a ton of query's and all of them are erroring...uhm..that made no sense..but in either case i've narrowed my problem down a little more..

i have mythweb running on another computer(or had..will explain in a minute) and every time i cancel a recording of a show the backend dies..

now to explain the had..
the other box..my lowly server..died the other night in a sad dramatic death...you see what happened was..
i got sick of it being so slow..500mhz celery, old HP pavillion that a buddy gave me..well i decided to upgrade to a 2ghz CPU with a new motherboard..well newto me anyways that i got from iraq while i was there...and 512megs of ram...the new MOBO with the heatsink and CPU fan would'nt fit in the HP case..so..i had an old case from an even older computer 333mhz amd k6-2(WOW) but...that case was'nt ATX just AT..soooooooo...i modified a few things and set the power supply from the HP on a home made "bracket"(peice of metal layed across the top of the case hehe) and hooked up everyhing...errr..well...the mobo would'nt fit in that case either...nothing lined up correctly...something about putting an ATX mobo in an AT case i assume..so i modified that too...i mounted it to my HP's mobo holder...uhm..yeah..and layed it across the inside of the case...well here's the funny part...somewhere between coming back from iraq and now when i finally used that mobo...well it does'nt work..does'nt post nothing..soo..it's sitting in the storage room outside ...... no money to upgrade properly

so im down to 1 system oh well..anywho...uhm..if any of that makes sense then im glad if not..oh well
_________________
The box said "Requires Windows 95 or better." I can't understand why it won't work on my Linux computer.

flindt · Posted: Wed Jul 06, 2005 8:10 am Post subject: Mythtv segfault [solved]

Well, I have solved my problem.
Seems I did not set up my channels correctly, and the frontend could not handle this

As soon as I set up two channels (and more) the problem went away...