Messages in this thread | | | Date | Thu, 29 Oct 2015 15:09:22 +0000 | From | Will Deacon <> | Subject | Re: [PATCH] recordmcount: arm64: replace the ignored mcount call into nop |
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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
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