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

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,

-- 
Mark Sergeant <msergeant_at_snsonline.net>
SNSOnline Technical Services