Re: [PATCH 1/2 v7] x86/kdump: always reserve the low 1MiB when the crashkernel option is specified

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在 2019年10月31日 02:25, kbuild test robot 写道:
> Hi Lianbo,
> 
> Thank you for the patch! Perhaps something to improve:
> 
> [auto build test WARNING on linus/master]
> [also build test WARNING on v5.4-rc5 next-20191030]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
> 
> url:    https://github.com/0day-ci/linux/commits/Lianbo-Jiang/x86-kdump-Fix-kmem-s-reported-an-invalid-freepointer-when-SME-was-active/20191031-001903
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 320000e72ec0613e164ce9608d865396fb2da278
> config: i386-defconfig (attached as .config)
> compiler: gcc-7 (Debian 7.4.0-14) 7.4.0
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=i386 
> 
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> 
> All warnings (new ones prefixed by >>):
> 
>    In file included from arch/x86/realmode/init.c:11:0:
>>> arch/x86/include/asm/crash.h:5:32: warning: 'struct kimage' declared inside parameter list will not be visible outside of this definition or declaration
>     int crash_load_segments(struct kimage *image);
>                                    ^~~~~~
>    arch/x86/include/asm/crash.h:6:37: warning: 'struct kimage' declared inside parameter list will not be visible outside of this definition or declaration
>     int crash_copy_backup_region(struct kimage *image);
>                                         ^~~~~~
>    arch/x86/include/asm/crash.h:7:39: warning: 'struct kimage' declared inside parameter list will not be visible outside of this definition or declaration
>     int crash_setup_memmap_entries(struct kimage *image,
>                                           ^~~~~~
> 
Hi,

The above warnings will still occur without my patches.

But i will fix the warnings in my patch series, and resend v8 later.

Thanks.

Lianbo

> vim +5 arch/x86/include/asm/crash.h
> 
> dd5f726076cc76 Vivek Goyal 2014-08-08   4  
> dd5f726076cc76 Vivek Goyal 2014-08-08  @5  int crash_load_segments(struct kimage *image);
> dd5f726076cc76 Vivek Goyal 2014-08-08   6  int crash_copy_backup_region(struct kimage *image);
> dd5f726076cc76 Vivek Goyal 2014-08-08   7  int crash_setup_memmap_entries(struct kimage *image,
> dd5f726076cc76 Vivek Goyal 2014-08-08   8  		struct boot_params *params);
> 89f579ce99f7e0 Yi Wang     2018-11-22   9  void crash_smp_send_stop(void);
> dd5f726076cc76 Vivek Goyal 2014-08-08  10  
> 
> :::::: The code at line 5 was first introduced by commit
> :::::: dd5f726076cc7639d9713b334c8c133f77c6757a kexec: support for kexec on panic using new system call
> 

Exactly.

> :::::: TO: Vivek Goyal <vgoyal@xxxxxxxxxx>
> :::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
> 


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