Selon Niko Mikkila <nm@xxxxxxxx>: > On Thu, 03 Nov 2005 11:37:17 +0100 > michaelip@xxxxxxx wrote: > > > Hello. > > > > Often when starting my computer, vdr crashes without any specific reason > and > > freezes the computer ! Nothing is possible/available on my comnputer ! I > just > > have to reset it ! > > > > Looking at syslog files, I have a long list of kernel PREEMPT, the last one > > freezing the computer ! > > > > Most of this PREMPT finishes with the following line: > > Nov 3 07:18:39 localhost kernel: <1>Unable to handle kernel NULL pointer > > dereference at virtual address 00000020 > > > > The first PREMPT occurs after a problem on DXR3 card ! > > > > Nov 3 07:18:23 localhost vdr[3105]: dxr3: fatal: microcode upload failed: > Timer > > expired > > Nov 3 07:18:23 localhost kernel: em8300: DICOM Update failed > > Nov 3 07:18:23 localhost kernel: em8300_video.c: Video Fifo timeout > > Nov 3 07:18:23 localhost vdr[2470]: dxr3: resuscitation: device failure or > user > > initiated reset > > > > I have a long list of call traces... It seems that problems cames from a > badly > > managed page fault ! > > > > I don't know what to do... Does anyone have a suggestion of what I could do > in > > order to avoid this ? What could I look in the syslog also ? > > > > Many thanks for any help. > > > > > > Michael > > > > The PREEMPT messages suggest that you have kernel preemption enabled. > That may be a bad idea with Dxr3, so try to compile a new kernel without it. > > If that doesn't help, check that Dxr3 doesn't share interrupts with any other > device (cat /proc/interrupts). Then you could add some delays to the scripts > so that the card has enough time to initialize properly. It is best to load > the dxr3 stuff in some script using modprobe with "sleep 2" after the module > loading and also after the microcode setup. > > -- > Niko Mikkil? > > _______________________________________________ > vdr mailing list > vdr@xxxxxxxxxxx > http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr > Hello. I have two devices listening at the same IRQ ! Here is the output of the cat /proc/interrupts CPU0 0: 101477 XT-PIC timer 2: 0 XT-PIC cascade 4: 2086 XT-PIC lirc_serial 5: 0 XT-PIC ehci_hcd:usb1 9: 0 XT-PIC acpi 11: 1017 XT-PIC Skystar2, eth0 12: 6235 XT-PIC em8300 14: 3273 XT-PIC ide0 15: 13 XT-PIC ide1 NMI: 0 ERR: 0 The network card share the same IRQ than my DVB card ! Could I swap one of these card on IRQ 10, knowing that the network card is an intergrated one ? Many thanks for your help.
