lkml.org 
[lkml]   [2015]   [Oct]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] recordmcount: arm64: replace the ignored mcount call into nop
On Thu, Oct 29, 2015 at 09:35:42PM +0800, kbuild test robot wrote:
> [auto build test ERROR on arm64/for-next/core -- if it's inappropriate base, please suggest rules for selecting the more suitable base]
>
> url: https://github.com/0day-ci/linux/commits/Li-Bin/recordmcount-arm64-replace-the-ignored-mcount-call-into-nop/20151028-160846
> config: arm64-allmodconfig (attached as .config)
> reproduce:
> wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # save the attached .config to linux build tree
> make.cross ARCH=arm64
>
> All errors (new ones prefixed by >>):
>
> >> /bin/bash: line 1: 117734 Segmentation fault ./scripts/recordmcount "arch/arm64/kernel/traps.o"
> --
> >> /bin/bash: line 1: 113824 Segmentation fault ./scripts/recordmcount "arch/arm64/mm/fault.o"

I can reproduce this locally with an allmodconfig build. The offset
parameter to make_nop_arm64 is nuts:

Program received signal SIGSEGV, Segmentation fault.
make_nop_arm64 (map=0x7ffff7fef000, offset=2600547309829750784) at scripts/recordmcount.c:170
170 if (*ptr != 0x94000000)

Both shdr->sh_offset (0x17000000000000) and relp->r_offset (0x2400000000000000)
look dodgy in the caller.

Li, can you take a look please?

Will


\
 
 \ /
  Last update: 2015-10-29 16:21    [W:0.141 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site