[parisc-linux] Re: 2.6.14-rc2-pa6 issues on C3000

[parisc-linux] Re: 2.6.14-rc2-pa6 issues on C3000

[Grant Grundler]

On Wed, Oct 19, 2005 at 02:54:42PM -0400, John David Anglin wrote:
> > Nice that works a lot better (you get rid of may Warning) eventhought didn't
> > boot yet (again synchronize_irq()) :_(
> 
> rc2-pa5 doesn't boot on c3k with default config.  I built it with
> gcc-4.0 (debian).  It dies with a data alignment exception (code=26)
> in kref_get (if I remember correctly).

I'm not seeing that with my j6k.
But I'm building using "stable" gcc (gcc version 3.3.5 (Debian 1:3.3.5-13)).
I also have enabled SMP and DEBUG_SLAB in my kernel builds.
Diff between c3000_config and my mine is appended (It's short).

Kernel should warn about, but handle data alignment exceptions.
So this sounds like two bugs: one for the misaligned data and
another that the kernel isn't handling it properly.
I expect this is another exposure that gcc 3.x was hiding by
automatically aligning some data types.

> There's also some undefined symbols in a module.

Ok - those should be easy to sort out. I'll look at that tonight.
I haven't noticed it on my builds.

thanks,
grant


grundler <505>diff /boot/config-2.6.14-rc2-pa6 arch/parisc/configs/c3000_defconfig 
3,4c3,4
< # Linux kernel version: 2.6.14-rc2-pa5
< # Mon Oct 17 19:39:53 2005
---
> # Linux kernel version: 2.6.14-rc2-pa1
> # Sat Sep 24 18:33:00 2005
22d21
< CONFIG_LOCK_KERNEL=y
40d38
< # CONFIG_CPUSETS is not set
70d67
< CONFIG_STOP_MACHINE=y
83,84c80
< CONFIG_SMP=y
< CONFIG_HOTPLUG_CPU=y
---
> # CONFIG_SMP is not set
98d93
< CONFIG_NR_CPUS=4
916a912,913
> CONFIG_SND_AD1889=y
> # CONFIG_SND_AD1889_OPL3 is not set
939,940d935
< CONFIG_SND_AD1889=y
< # CONFIG_SND_AD1889_OPL3 is not set
1280c1275
< CONFIG_DEBUG_SLAB=y
---
> # CONFIG_DEBUG_SLAB is not set
1287d1281
< # CONFIG_DEBUG_RWLOCK is not set
grundler <506>
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Re: [parisc-linux] Re: 2.6.14-rc2-pa6 issues on C3000

[John David Anglin]

> On Wed, Oct 19, 2005 at 06:53:40PM -0400, John David Anglin wrote:
> > Ok, these are the warnings from make modules_install install:
> > 
> > if [ -r System.map -a -x /sbin/depmod ]; then /sbin/depmod -ae -F System.map  2.
> > 6.14-rc2-pa7; fi
> > WARNING: /lib/modules/2.6.14-rc2-pa7/kernel/net/ipv6/xfrm6_tunnel.ko needs unkno
> > wn symbol xfrm6_rcv_spi
> 
> To help rule out toolchain differences, I repeated building -pa7 on
> "unstable" debian using c3000_defconfig. That's using gcc v4.0.2.

The problem is caused by using cvs binutils-2.16.91 20051016.

Dave
-- 
J. David Anglin                                  dave.anglin@nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)
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Re: [parisc-linux] Re: 2.6.14-rc2-pa6 issues on C3000

[Grant Grundler]

On Thu, Oct 20, 2005 at 01:43:24PM -0400, John David Anglin wrote:
> > On Wed, Oct 19, 2005 at 06:53:40PM -0400, John David Anglin wrote:
> > > Ok, these are the warnings from make modules_install install:
> > > 
> > > if [ -r System.map -a -x /sbin/depmod ]; then /sbin/depmod -ae -F System.map  2.
> > > 6.14-rc2-pa7; fi
> > > WARNING: /lib/modules/2.6.14-rc2-pa7/kernel/net/ipv6/xfrm6_tunnel.ko needs unkno
> > > wn symbol xfrm6_rcv_spi
> > 
> > To help rule out toolchain differences, I repeated building -pa7 on
> > "unstable" debian using c3000_defconfig. That's using gcc v4.0.2.
> 
> The problem is caused by using cvs binutils-2.16.91 20051016.

Ah ok - this is currently installed on gsyprf7 (aka ios):
ii  binutils       2.16.1cvs20050 The GNU assembler, linker and binary utiliti

(debian unstable)

thanks,
grant
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