Re: [PATCH v4 5/6] add listmount(2) syscall

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On 1/23/24 06:14, John Paul Adrian Glaubitz wrote:
Hi Guenter,

with this patch in the tree, all sh4 builds fail with ICE.

during RTL pass: final
In file included from fs/namespace.c:11:
fs/namespace.c: In function '__se_sys_listmount':
include/linux/syscalls.h:258:9: internal compiler error: in change_address_1, at emit-rtl.c:2275

I tested with gcc 8.2, 11.3, 11.4, and 12.3. The compiler version
does not make a difference. Has anyone else seen the same problem ?
If so, any idea what to do about it ?

I'm not seeing any problems building the SH kernel except some -Werror=missing-prototypes warnings.


The problem has been fixed thanks to some guidance from Linus. I did disable
CONFIG_WERROR for sh (and a few other architectures) because it now always
results in pointless build failures on test builds due to commit 0fcb70851fbf
("Makefile.extrawarn: turn on missing-prototypes globally").

I'm using gcc 11.1 from here [1].

Adrian

PS: Please always CC linux-sh and the SH maintainers when reporting issues.


When reporting anything in the linux kernel, it is always a tight rope between
copying too few or too many people or mailing lists. I have been scolded for both.
Replying to the original patch historically results in the fewest complaints,
so I think I'll stick to that.

Guenter





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