[vdr] Re: segmentation fault immediately after start of vdr

[Walter Schittek <waltersch@gmx.net>]

The /var/log/messages lines that irritate you are not always the same. 
They are the same as long as I make no reboot, but then they change or 
(randomly?) are again the same. My current /var/log/messages contains 
about 50 starts of vdr, and the two lines "Call Trace" vary between 
these four:

kernel: Call Trace:    [ipv6:icmpv6_socket+240777913/275904959] 
[do_pollfd+128/144] [do_poll+220/240] [sys_poll+340/720] [sys_time+17/80]
kernel: Call Trace:    [<d1a81439>] [<c0152c80>] [<c0152d6c>] 
[<c0152ed4>] [<c01225c1>]

kernel: Call Trace: 
[parport_pc:__insmod_parport_pc_O/lib/modules/2.4.19-4GB/kernel/drivers+-2681799/96] 
[do_pollfd+128/144] [do_poll+220/240] [sys_poll+340/720] [sys_time+17/80]
kernel: Call Trace:    [<c1e01439>] [<c0152c80>] [<c0152d6c>] 
[<c0152ed4>] [<c01225c1>]

kernel: Call Trace:    [<d92bb439>] [do_pollfd+128/144] 
[do_poll+220/240] [sys_poll+340/720] [sys_time+17/80]
kernel: Call Trace:    [<d92bb439>] [<c0152c80>] [<c0152d6c>] 
[<c0152ed4>] [<c01225c1>]

kernel: Call Trace: 
[ppp_generic:__insmod_ppp_generic_O/lib/modules/2.4.19-4GB/kernel/driver+-234056647/96] 
[do_pollfd+128/144] [do_poll+220/240] [sys_poll+340/720] [sys_time+17/80]
kernel: Call Trace:    [<d1a81439>] [<c0152c80>] [<c0152d6c>] 
[<c0152ed4>] [<c01225c1>]

But always there is the line:
kernel: Process vdr (pid: 2460, stackpage=ceec9000)
with varying pid/stackpage values.

Up to now, I had no problems with hardware or software of my pc. When 
vdr terminates, everything else stays ok. I suppose, the "Call Trace" 
lines indicate some other software that is running at the same time or 
has run before, but not necessarily causes the "kernel NULL pointer 
dereference".

I still have no idea ... ??

Walter


Sascha Volkenandt schrieb:
> At Mittwoch, 25. Juni 2003 16:03 Walter Schittek wrote:
>
> > vdr[2861]: VDR version 1.2.1 started
> > vdr[2861]: loading /video/sources.conf
> > vdr[2861]: loading /video/diseqc.conf
> > vdr[2861]: loading /video/channels.conf
> > vdr[2861]: loading /video/svdrphosts.conf
> > vdr[2861]: loading /video/ca.conf
> > vdr[2861]: loading /video/keymacros.conf
> > vdr[2861]: probing /dev/dvb/adapter0/frontend0
> > vdr[2864]: EIT processing thread started (pid=2864) - master
> > kernel: Unable to handle kernel NULL pointer dereference at virtual
> > address 00000000
> > kernel:  printing eip:
> > kernel: 00000000
> > kernel: *pde = 00000000
> > kernel: Oops: 0000 2.4.19-4GB #1 Mon Oct 14 22:11:39 UTC 2002
> > kernel: CPU:    0
> > kernel: EIP:    0010:[<00000000>]    Tainted: P
> > kernel: EFLAGS: 00010282
> > kernel: eax: e15b0064   ebx: e15b0000   ecx: c6f83fa8   edx: ffffffea
> > kernel: esi: ca87dbc0   edi: 00000000   ebp: 00000000   esp: c6f83f0c
> > kernel: ds: 0018   es: 0018   ss: 0018
> > kernel: Process vdr (pid: 2864, stackpage=c6f83000)
> > kernel: Stack: c5161439 ca87dbc0 e15b0064 c6f83fa8 00000145 c6cfd000
> > ca87dbc0 c0152c80
> > kernel:        ca87dbc0 c6f83fa8 00000000 40a869ac 00000000 00000000
> > c0152d6c 00000006
> > kernel:        c6cfd000 c6f83f60 c6f83f64 c6f82000 c6f82000 c6f83fa8
> > 00000000 000001f0
> > kernel: Call Trace:
> > [parport_pc:__insmod_parport_pc_O/lib/modules/2.4.19-4GB/kernel/drivers+-
> > 361950151/96] [do_pollfd+128/144] [do_poll+220/240] [sys_poll+340/720]
> > [sys_time+17/80] kernel: Call Trace:    [<c5161439>] [<c0152c80>]
> > [<c0152d6c>]
> > [<c0152ed4>] [<c01225c1>]
> > kernel:   [system_call+51/64]
> > kernel:   [<c0108e63>]
> > kernel: Modules: [(dvb-core:<c5160060>:<c5169764>)]
> > kernel: Code:  Bad EIP value.
>
> This looks like something is trying to load the parallel port module. Try 
> moving away parport_pc.o from /lib/modules/<kernel-version> and look what 
> happens then. Maybe that object is from another kernel/built with another 
> gcc release?
>
> Greetings,
> Sascha



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