Re: [PATCH] ide-cd: fix kernel crash on hppa regression

[Helge Deller <deller@gmx.de>]

Borislav Petkov wrote:
> Hi,
> 
> On Thu, Apr 16, 2009 at 10:26:06PM +0200, Helge Deller wrote:
> 
> [..]
> 
>> I tried to build a kernel with CONFIG_DEBUG_INFO.
>> There are two problem with that, because I'm cross-compiling:
>> a) I don't have a cross-gdb (but I could use addr2line instead though)
>> b) the resulting kernel is becoming too big and won't link/boot:ina
>> ...
>>   SYSMAP  System.map
>>   SYSMAP  .tmp_System.map
>> /sbin/palo -f /mnt/sda4/home/cvs/parisc/git-kernel/linus-linux-2.6-32bit/palo.conf
>> palo version 1.14 deller@p100 Fri Jul 28 22:55:11 CEST 2006
>> ELF32 executable
>> ipl: addr 2048 size 36864 entry 0x0
>>  ko 0x0 ksz 0 k64o 0x0 k64sz 0 rdo 0 rdsz 0
>> <>
>> Your 32-bit-kernel is too big for your F0 partition
>> make[3]: *** [palo] Error 2
>>
>> I could now just try to look into the assembly by hand and try
>> to find which line produces the problem. But reading hppa assembly code
>> for such a big function is not very easy though.
> 
> Thanks a lot for trying, I appreciate it. However, I think I have an easier idea
> I could try here first and maybe we won't need the hppa assembly exercise :).

Great, thanks!
If you want me to test something, just let me know.

>> BTW, even with my patch ATAPI CDROM accesses don't work with the current kernel...
> 
> What do you mean by that, please elaborate?

I meant:
a) Without my patch the kernel did crash (see backtrace in original mail)
b) with my patch the kernel booted to login prompt, but I got those messages on the console:
 hda: command error: status=0x51 { DriveReady SeekComplete Error }
 hda: command error: error=0x54 <3>{ AbortedCommand LastFailedSense=0x05 }
 ide: failed opcode was: unknown
Nevertheless, mounting a cdrom in the drive didn't suceeded with same/similiar messages, but
this could even be because of the parisc superio driver...

Helge