Re: 2.6.27-rc3: IP: [<ffffffffa0038b77>] init_irq+0x18d/0x31c [ide_core]

[Larry Finger <Larry.Finger@lwfinger.net>]

Martin Michlmayr wrote:
> I get the following with 2.6.27-rc3 when inserting a CF card into my
> PCMCIA slot:
> 
> [  144.983810] pccard: PCMCIA card inserted into slot 0
> [  144.983942] cs: memory probe 0x0c0000-0x0fffff: excluding 0xc0000-0xd3fff 0xe0000-0xfffff
> [  144.989008] cs: memory probe 0x60000000-0x60ffffff: excluding 0x60000000-0x60ffffff
> [  144.989008] cs: memory probe 0xa0000000-0xa0ffffff: clean.
> [  145.008898] cs: memory probe 0xe0100000-0xe03fffff: excluding 0xe0100000-0xe012ffff
> [  145.021508] pcmcia: registering new device pcmcia0.0
> [  145.284012] Probing IDE interface ide1...
> [  145.576063] hdc: TOSHIBA THNCF512MMA, CFA DISK drive
> [  146.248065] BUG: unable to handle kernel NULL pointer dereference at 00000000000000f8
> [  146.248065] IP: [<ffffffffa0038b77>] init_irq+0x18d/0x31c [ide_core]

Please do the following, which will require the package containing 
objdump. First of all, do the command

objdump -d -l drivers/ide/ide-core.o > ide_core.dump

Next, open ide_core.dump with less or your favorite editor and search 
for the start of init_irq. Note that address. Add your offset of 0x18D 
to that value and find the instruction at that address. Move up in the 
file until you find a line that looks like

/home/finger/linux-2.6/drivers/ide/ide-probe.c:1054

That will be the source line that oopsed. Post that information.

Thanks,

Larry


Once this is open, search