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From:   "Xu, Yanfei" <yanfei.xu@windriver.com>
Subject: BUG: mips: errors when compiling kernel with a large initramfs
To:     Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc:     linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org
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Date:   Tue, 7 Apr 2020 17:58:23 +0800
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Hi,


It fails to compile mips kernel with large initramfs (at link time).

kernel version: 5.6.0


Steps to reproduce:

1. git clone mainline kernel

2. set ARCH=mips and CROSS_COMPILE=mips-linux-gnu-

3. make defconfig

4.enable initramfs support and set the path about initramfs source file

5.make -j24

[KEY] when your initramfs files is too large, and cause 
usr/initramfs_data.cpio.gz

compiled is larger than 225M, you will get the following error. BTW, x86 
doesn't

have this issue that I have tested.

------------------------------error 
messages-----------------------------------------

   CHK     include/generated/compile.h
   LD      vmlinux.o
   MODPOST vmlinux.o
   MODINFO modules.builtin.modinfo
   GEN     modules.builtin
   LD      .tmp_vmlinux.kallsyms1
kernel/configs.o: In function `ikconfig_cleanup':
/home/wrsadmin/work/linux/kernel/linux-master/kernel/configs.c:72:(.exit.text+0x8): 
relocation truncated to fit: R_MIPS_26 against `remove_proc_entry'
fs/binfmt_script.o: In function `exit_script_binfmt':
/home/wrsadmin/work/linux/kernel/linux-master/fs/binfmt_script.c:165:(.exit.text+0x4): 
relocation truncated to fit: R_MIPS_26 against `unregister_binfmt'
fs/binfmt_elf.o: In function `exit_elf_binfmt':
/home/wrsadmin/work/linux/kernel/linux-master/fs/binfmt_elf.c:2393:(.exit.text+0x4): 
relocation truncated to fit: R_MIPS_26 against `unregister_binfmt'
fs/mbcache.o: In function `mbcache_exit':
/home/wrsadmin/work/linux/kernel/linux-master/fs/mbcache.c:429:(.exit.text+0x4): 
relocation truncated to fit: R_MIPS_26 against `kmem_cache_destroy'
fs/nfs_common/grace.o: In function `exit_grace':
/home/wrsadmin/work/linux/kernel/linux-master/fs/nfs_common/grace.c:133:(.exit.text+0x4): 
relocation truncated to fit: R_MIPS_26 against `unregister_pernet_subsys'
fs/ext4/super.o: In function `ext4_destroy_lazyinit_thread':
/home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:3456:(.exit.text+0x24): 
relocation truncated to fit: R_MIPS_26 against `kthread_stop'
fs/ext4/super.o: In function `unregister_as_ext2':
/home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:6126:(.exit.text+0x30): 
relocation truncated to fit: R_MIPS_26 against `unregister_filesystem'
fs/ext4/super.o: In function `unregister_as_ext3':
/home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:6155:(.exit.text+0x3c): 
relocation truncated to fit: R_MIPS_26 against `unregister_filesystem'
fs/ext4/super.o: In function `ext4_exit_fs':
/home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:6261:(.exit.text+0x48): 
relocation truncated to fit: R_MIPS_26 against `unregister_filesystem'
fs/ext4/super.o: In function `destroy_inodecache':
/home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:1218:(.exit.text+0x50): 
relocation truncated to fit: R_MIPS_26 against `rcu_barrier'
/home/wrsadmin/work/linux/kernel/linux-master/fs/ext4/super.c:1219:(.exit.text+0x5c): 
additional relocation overflows omitted from the output
Makefile:1086: recipe for target 'vmlinux' failed
make[1]: *** [vmlinux] Error 1
Makefile:1058: recipe for target 'autoksyms_recursive' failed
make: *** [autoksyms_recursive] Error 2


Any comment will be appreciated.

Thanks,

Yanfei