I have a bt848 based TV tuner (see bootlog below) which sometimes goes on the blink (see failure log below). It will not reset, and a reboot does not fix it. I need to cycle the power to get it back online.
I know that 2.6.10 and 2.6.11-rc4 did not restore operation when booted, and I recall this even on earlier kernels.
I wonder if the reset process is not as extensive as it should be. Naturally, it is possible that the card, when it fails, is in a state where a reset is just not possible. It will be nice if this can be improved though.
Boot log ======== bttv: driver version 0.9.15 loaded bttv: using 8 buffers with 2080k (520 pages) each for capture bttv: Bt8xx card found (0). ACPI: PCI interrupt 0000:03:01.0[A] -> GSI 21 (level, low) -> IRQ 21 bttv0: Bt848 (rev 18) at 0000:03:01.0, irq: 21, latency: 32, mmio: 0xde000000 bttv0: using: STB, Gateway P/N 6000699 (bt848) [card=3,insmod option] bttv0: gpio config override: mask=0x7, mux=0x1,0x0,0x2,0x3,0x4 bttv0: gpio: en=00000000, out=00000000 in=00f0c0fc [init] tuner: chip found at addr 0xc0 i2c-bus bt848 #0 [sw] tuner: type set to 5 (Philips PAL_BG (FI1216 and compatibles)) by insmod option tuner: The type=<n> insmod option will go away soon. tuner: Please use the tuner=<n> option provided by tuner: tv aard core driver (bttv, saa7134, ...) instead. bttv0: using tuner=2 tuner: type already set to 5, ignoring request for 2 bttv0: registered device video0 bttv0: registered device vbi0 bttv0: registered device radio0 bttv0: PLL can sleep, using XTAL (35468950). bttv: Bt8xx card found (1).
Typical failure =============== Feb 17 09:09:33 eyal kernel: bttv0: OCERR @ 37efb000,bits: HSYNC OFLOW OCERR* Feb 17 09:09:34 eyal last message repeated 14 times Feb 17 09:09:34 eyal kernel: bttv0: OCERR @ 37efb000,bits: HSYNC OFLOW FDSR OCERR* Feb 17 09:09:37 eyal last message repeated 66 times Feb 17 09:09:37 eyal kernel: bttv0: timeout: drop=39 irq=318/321, risc=37efb01c, bits: HSYNC OFLOW Feb 17 09:09:37 eyal kernel: bttv0: reset, reinitialize Feb 17 09:09:37 eyal kernel: bttv0: PLL can sleep, using XTAL (35468950). Feb 17 09:09:37 eyal kernel: bttv0: OCERR @ 37efb000,bits: VSYNC HSYNC OFLOW FDSR OCERR* Feb 17 09:09:45 eyal last message repeated 200 times Feb 17 09:09:45 eyal kernel: bttv0: timeout: drop=241 irq=726/729, risc=37efb01c, bits: VSYNC HSYNC OFLOW<6>bttv0: OCERR @ 37efb000,bits: HSYNC OFLOW FBUS FDSR OCERR* Feb 17 09:09:45 eyal kernel: Feb 17 09:09:45 eyal kernel: bttv0: reset, reinitialize Feb 17 09:09:45 eyal kernel: bttv0: PLL can sleep, using XTAL (35468950). Feb 17 09:09:45 eyal kernel: bttv0: OCERR @ 37efb000,bits: VSYNC HSYNC OFLOW OCERR* Feb 17 09:09:45 eyal last message repeated 11 times Feb 17 09:09:45 eyal kernel: bttv0: timeout: drop=242 irq=743/746, risc=37efb01c, <6>bttv0: OCERR @ 37efb000,bits: VSYNC HSYNC OFLOW FBUS OCERR* Feb 17 09:09:45 eyal kernel: bits: VSYNC HSYNC OFLOW<6>bttv0: OCERR @ 37efb000,bits: VSYNC HSYNC OFLOW OCERR*
-- Eyal Lebedinsky ([EMAIL PROTECTED]) <http://samba.org/eyal/> attach .zip as .dat - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
