Re: [Bug 11800] New: building SES support fails w/ gcc-3.4.5

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(switched to email.  Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Tue, 21 Oct 2008 11:36:12 -0700 (PDT)
bugme-daemon@xxxxxxxxxxxxxxxxxxx wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=11800
> 
>            Summary: building SES support fails w/ gcc-3.4.5
>            Product: SCSI Drivers
>            Version: 2.5
>      KernelVersion: 2.6.27.1
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: Other
>         AssignedTo: scsi_drivers-other@xxxxxxxxxxxxxxxxxxxx
>         ReportedBy: bugzilla.kernel.org@xxxxxxxx
> 
> 
> [beej@dell ~]$ cat /etc/redhat-release
> CentOS release 4.3 (Final)
> [beej@dell ~]$ rpm -qf `which gcc`
> gcc-3.4.5-2
> [beej@dell linux-2.6.27.1]$ diff .config .config.old
> 4c4
> < # Tue Oct 21 14:07:00 2008
> ---
> > # Thu Oct 16 17:54:42 2008
> 1006c1006
> < # CONFIG_SCSI_ENCLOSURE is not set
> ---
> > CONFIG_SCSI_ENCLOSURE=m
> 
> using .config.old,
> [beej@dell linux-2.6.27.1]$ make
> <snip>
> Kernel: arch/x86/boot/bzImage is ready  (#2)
>   Building modules, stage 2.
>   MODPOST 668 modules
> ERROR: "__you_cannot_kmalloc_that_much" [drivers/scsi/ses.ko] undefined!
> make[1]: *** [__modpost] Error 1
> make: *** [modules] Error 2
> 

That's weird.  It means that we did a kmalloc(N, ...) where the value
of N is known at compile time, and N is too large.

But I can find no such kmalloc/kzalloc calls in ses.c.  It might be gcc
bustage - we've seen that before.

Please do

	make drivers/scsi/ses.s

then have a look in drivers/scsi/ses.s and see which function is
emitting a call to __you_cannot_kmalloc_that_much.  Or email me
drivers/scsi/ses.s and I'll take a look.

Thanks.
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