linux-kernel - Re: [PATCH v4 0/4] LoongArch: Support new relocation types

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Date:   Fri, 29 Jul 2022 18:18:16 +0800
From:   Xi Ruoyao <xry111@...111.site>
To:     Youling Tang <tangyouling@...ngson.cn>, loongarch@...ts.linux.dev
Cc:     linux-kernel@...r.kernel.org, WANG Xuerui <kernel@...0n.name>,
        Huacai Chen <chenhuacai@...nel.org>,
        Jinyang He <hejinyang@...ngson.cn>
Subject: Re: [PATCH v4 0/4] LoongArch: Support new relocation types

On Fri, 2022-07-29 at 17:49 +0800, Youling Tang wrote:
> Hi, Ruoyao
> 
> Tested this series of patches v3 on a CLFS 5.5 system, using the new
> cross toolchain,
> $ dmesg | head
> [    0.000000] Linux version 5.19.0-rc7new-toolchain+ (loongson@...ux)
> (loongarch64-unknown-linux-gnu-gcc (GCC) 13.0.0 20220726 (experimental) 
> [master revision 
> cf7eac5805e:1e0611b64d8:3fb68f2e666d9de7e0326af9f43b12c9e98f19a6], GNU
> ld (GNU Binutils) 2.39.50.20220726) #1 SMP PREEMPT Fri Jul 29 05:24:15
> EDT 2022
> 
> Relocation error when manually loading nf_tables.ko module,
> $ sudo modprobe nf_tables
> odprobe: ERROR: could not insert 'nf_tables': Exec format error
> 
> $ dmesg
> [   61.506737] kmod: module nf_tables: PCALA offset = 0x90007ffffed8c000 
> does not fit in 32-bit signed and is unsupported by kernel! dangerous 
> apply_r_larch_pcala_hi20 (71) relocation
> 
> Do you have the same problem over there?

I can reproduce it with "modprobe x_tables".  Will try to debug...