Re: Broken kernel on 5.1-RELEASE was :[compile on 5.1-RELEASE /5-CURRENT (SMP, PAE & scsi)]

Ah shoot, I should know better than to respond after having a few beers.
As Robert pointed out, modules are absolutely not supported in PAE
kernels.  That not only includes sym and usb, but also acpi (which is
automatically loaded at boot).  If you still want to experiment with
the sym driver, just delete the line that the compiler complains about
(it's in a code path that will likely never be used).

Scott


Mark Sergeant wrote:
> Ok I've now got problems with the compiled kernel, I get panics on my
> multiple cpu machine on boot just after boot & before the prompt is
> reached. It's a lock on cpu #2 ( I believe cpu 3 ).
> 
> Unfortunately I don't have the exact message nor do I have a kernel dump
> as this machine is "meant" to be a production one and as such a boot of
> kernel.old was done.
> 
> Does anyone have a 4 or greater cpu machine running 5.1-RELEASE
> succesfully ? I've got a 5.1-RELEASE machine running with the same
> kernel config & 2 cpu's  without any problem so I can only think that
> it's something to do with more than 2 cpu's.
> 
> Cheers,
> 
> Mark
> 
> On Tue, 2003-08-19 at 17:55, Mark Sergeant wrote:
> 
>>On Tue, 2003-08-19 at 17:47, Scott Long wrote:
>>
>>>Mark Sergeant wrote:
>>>
>>>>Hi All,
>>>>
>>>>	When trying to compile a kernel for my 8 cpu DELL 8450's I recieve an
>>>>extremly puzzling error, I get a bunch of errors when compiling a kernel
>>>>that has the following options in it...
>>>>
>>>>options     WITNESS
>>>>options     NETSMB
>>>>options     NETSMBCRYPTO
>>>>options     LIBMCHAIN
>>>>options     LIBICONV
>>>>options     PAE
>>>>options     SMP                     
>>>>options     APIC_IO
>>>>
>>>>Without  PAE SMP or APIC_IO the kernel will compile fine. With these
>>>>options I get the following error when compiling the sym scsi driver.
>>>>cc -c -O -pipe -march=pentium3 -Wall -Wredundant-decls -Wnested-externs
>>>>-Wstrict-prototypes  -Wmissing-prototypes -Wpointer-arith -Winline
>>>>-Wcast-qual  -fformat-extensions -std=c99  -nostdinc -I-  -I. -I../../..
>>>>-I../../../dev -I../../../contrib/dev/acpica -I../../../contrib/ipfilter
>>>>-D_KERNEL -include opt_global.h -fno-common  -mno-align-long-strings
>>>>-mpreferred-stack-boundary=2 -ffreestanding -Werror 
>>>>../../../dev/sym/sym_hipd.c
>>>>cc1: warnings being treated as errors
>>>>../../../dev/sym/sym_hipd.c: In function `sym_setup_data_and_start':
>>>>../../../dev/sym/sym_hipd.c:8146: warning: cast from pointer to integer
>>>>of different size
>>>>*** Error code 1
>>>>
>>>>This is rather unfortunate as the only disks I have run off this
>>>>controller. I've found that it does compile with the ahc driver but even
>>>>then some usb stuff needs removing.
>>>>
>>>>Does anyone have any insight into this and what I can do to get it
>>>>fixed.
>>>>
>>>>Cheers,
>>>
>>>The key kere is likely PAE, not APIC_IO, as PAE changes the size of
>>>some data types.  The USB problem is known.  The sym problem looks to
>>>be harmless assuming that the warning you got is the only one that
>>>is emitted.  However, it appears that it was never certified as being
>>>ready for PAE.  If you're adventurous, you can try compiling and
>>>loading it as a module (warnings when compiling modules are not fatal
>>>like they are in when compiling the kernel).
>>>
>>>If there are more errors/warning that what you list, I'd be interested
>>>in seeing them.
>>>
>>>Scott
>>
>>There are no other errors apart from those listed so I may try compiling
>>as a module that gets loaded on boot. Just one problem, I succesfully
>>build an SMP kernel without PAE and then rebooted and the server is no
>>longer responding, it seems it crashed just after coming up as I was
>>able to ping it 5 or 6 times and then it went away again. If I've got a
>>crash dump I'll post it.
>>
>>Cheers,