On 5/11/21 1:47 PM, Andrew Morton wrote:
> On Tue, 11 May 2021 12:39:00 -0700 Randy Dunlap <rdunlap@infradead.org> wrote:
> 
>> Lots of various mm/ build errors:
> 
> Huh, It Worked For Me (tm).   Can you please share the .config?
> 

configs (plural). All of them are randconfigs. All on x86_64.


mm/slab_common.c:754:8: error: array index in initializer exceeds array bounds
config-r9247

../include/linux/hugetlb.h:340:30: error: parameter 6 (‘mode’) has incomplete type
../include/linux/hugetlb.h:335:19: error: function declaration isn’t a prototype [-Werror=strict-prototypes]
config-r9251

../include/linux/kernel.h:53:43: error: dereferencing pointer to incomplete type ‘struct module’
../include/linux/build_bug.h:78:41: error: static assertion failed: "sizeof(typeof_member(struct module, build_id)) == 20"
config-r9253


../include/linux/compiler_types.h:328:38: error: call to ‘__compiletime_assert_253’ declared with attribute error: BUILD_BUG_ON failed: sizeof(struct page) > 80
config-r9254


The randconfig files are attached.

I have been wondering lately if I could just tell you/other people the
randconfig SEED that was used and then you/other people could just use
that SEED to reproduce the randconfig file(s).
Are rand() and srand() stable across GCC versions and h/w platforms?

config-r9247:KCONFIG_SEED=0x7ABE8042
config-r9251:KCONFIG_SEED=0x67B989AA
config-r9253:KCONFIG_SEED=0x7B3D63BE
config-r9254:KCONFIG_SEED=0x331557C5


Usage:
KCONFIG_SEED=0x331557C5 make [ARCH=x86_64] [O=builddir] randconfig

thanks.
-- 
~Randy