* BUG: mips: errors when compiling kernel with a large initramfs
@ 2020-04-07 9:58 Xu, Yanfei
2020-04-07 10:21 ` YunQiang Su
2020-04-07 12:25 ` Jiaxun Yang
0 siblings, 2 replies; 5+ messages in thread
From: Xu, Yanfei @ 2020-04-07 9:58 UTC (permalink / raw)
To: Thomas Bogendoerfer; +Cc: linux-mips, linux-kernel
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
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BUG: mips: errors when compiling kernel with a large initramfs
2020-04-07 9:58 BUG: mips: errors when compiling kernel with a large initramfs Xu, Yanfei
@ 2020-04-07 10:21 ` YunQiang Su
2020-04-07 12:54 ` Xu, Yanfei
2020-04-07 12:25 ` Jiaxun Yang
1 sibling, 1 reply; 5+ messages in thread
From: YunQiang Su @ 2020-04-07 10:21 UTC (permalink / raw)
To: Xu, Yanfei; +Cc: Thomas Bogendoerfer, linux-mips, LKML
Xu, Yanfei <yanfei.xu@windriver.com> 于2020年4月7日周二 下午5:58写道：
>
> 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
It is due to the JAL insn can only support <256MiB jump
>
> 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.
Maybe, you can have a try add `-mlong-calls' to your CFLAGS.
I am not sure that it can work.
https://gcc.gnu.org/onlinedocs/gcc/MIPS-Options.html
>
> Thanks,
>
> Yanfei
>
--
YunQiang Su
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BUG: mips: errors when compiling kernel with a large initramfs
2020-04-07 10:21 ` YunQiang Su
@ 2020-04-07 12:54 ` Xu, Yanfei
0 siblings, 0 replies; 5+ messages in thread
From: Xu, Yanfei @ 2020-04-07 12:54 UTC (permalink / raw)
To: YunQiang Su; +Cc: Thomas Bogendoerfer, linux-mips, LKML
On 4/7/20 6:21 PM, YunQiang Su wrote:
> Xu, Yanfei <yanfei.xu@windriver.com> 于2020年4月7日周二 下午5:58写道：
>> 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
> It is due to the JAL insn can only support <256MiB jump
>
>> 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.
> Maybe, you can have a try add `-mlong-calls' to your CFLAGS.
> I am not sure that it can work.
> https://gcc.gnu.org/onlinedocs/gcc/MIPS-Options.html
Ha, It does work. Many thanks!
Yanfei
>> Thanks,
>>
>> Yanfei
>>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BUG: mips: errors when compiling kernel with a large initramfs
2020-04-07 9:58 BUG: mips: errors when compiling kernel with a large initramfs Xu, Yanfei
2020-04-07 10:21 ` YunQiang Su
@ 2020-04-07 12:25 ` Jiaxun Yang
2020-04-07 13:24 ` Xu, Yanfei
1 sibling, 1 reply; 5+ messages in thread
From: Jiaxun Yang @ 2020-04-07 12:25 UTC (permalink / raw)
To: Xu, Yanfei; +Cc: Thomas Bogendoerfer, linux-mips, linux-kernel
On Tue, 7 Apr 2020 17:58:23 +0800
"Xu, Yanfei" <yanfei.xu@windriver.com> wrote:
> 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.
Actually I think that won't work even if you managed to workaround
reloc issue.
MIPS have limited LOW MEM range accessible via KSEG0 (512M, but can be
less if your system place some MMIO register in that range). Kernel
image will be placed here together with built-in initramfs, and a
lot of memory like Page Table can only be allocated from here.
Such a huge initrd will occupy the whole LOW MEM range leaving no space
for others.
It seems like your system is 32bit, we have no solution for that
hardware limitaion. For 64bit system you may try to move your kernel
into XKPHYS instead of KSEG0.
Thanks
--
Jiaxun Yang
>
> Thanks,
>
> Yanfei
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: BUG: mips: errors when compiling kernel with a large initramfs
2020-04-07 12:25 ` Jiaxun Yang
@ 2020-04-07 13:24 ` Xu, Yanfei
0 siblings, 0 replies; 5+ messages in thread
From: Xu, Yanfei @ 2020-04-07 13:24 UTC (permalink / raw)
To: Jiaxun Yang; +Cc: Thomas Bogendoerfer, linux-mips, linux-kernel
On 4/7/20 8:25 PM, Jiaxun Yang wrote:
> On Tue, 7 Apr 2020 17:58:23 +0800
> "Xu, Yanfei" <yanfei.xu@windriver.com> wrote:
>
>> 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.
> Actually I think that won't work even if you managed to workaround
> reloc issue.
>
> MIPS have limited LOW MEM range accessible via KSEG0 (512M, but can be
> less if your system place some MMIO register in that range). Kernel
> image will be placed here together with built-in initramfs, and a
> lot of memory like Page Table can only be allocated from here.
>
> Such a huge initrd will occupy the whole LOW MEM range leaving no space
> for others.
As you said, it is really a problem about a huge initramfs. I'll pay
attention
about this point.
> It seems like your system is 32bit, we have no solution for that
> hardware limitaion. For 64bit system you may try to move your kernel
> into XKPHYS instead of KSEG0.
Yes, it is a 32bit system. And thanks for your workaround about 64bit.
: )
Thanks,
Yanfei
>
> Thanks
>
> --
> Jiaxun Yang
>
>> Thanks,
>>
>> Yanfei
>>
>
^ permalink raw reply [flat|nested] 5+ messages in thread
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2020-04-07 9:58 BUG: mips: errors when compiling kernel with a large initramfs Xu, Yanfei
2020-04-07 10:21 ` YunQiang Su
2020-04-07 12:54 ` Xu, Yanfei
2020-04-07 12:25 ` Jiaxun Yang
2020-04-07 13:24 ` Xu, Yanfei
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