linux-kernel - Re: [Consult] cris: arch-v10: About $dtp0 register

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Message-ID: <BLU436-SMTP1822B5A35A31370E50E1BBDB9750@phx.gbl>
Date:	Wed, 5 Aug 2015 22:39:00 +0800
From:	Chen Gang <xili_gchen_5257@...mail.com>
To:	Hans-Peter Nilsson <hans-peter.nilsson@...s.com>
CC:	jespern@...s.com, starvik@...s.com, linux-kernel@...r.kernel.org,
	linux-cris-kernel@...s.com
Subject: Re: [Consult] cris: arch-v10: About $dtp0 register

On 8/5/15 12:32, Hans-Peter Nilsson wrote:
>> From: Chen Gang <xili_gchen_5257@...mail.com>
>> Date: Mon, 20 Jul 2015 23:32:52 +0200
> 
>> On 7/9/15 08:44, Chen Gang wrote:
>> The latest upstream cris gcc will cause issue for next-20150720 with
>> allmodconfig (although it can let next-20150702 pass allmodconfig):
>>
>>     CC [M]  kernel/rcu/rcutorture.o
> [...]
>>   include/linux/rcutiny.h:55:20: internal compiler error: Segmentation fault
>>    static inline void rcu_barrier_sched(void)
>>                       ^
>>   0xad879f crash_signal
>>         ../../gcc/gcc/toplev.c:352
>>   0xbf0fb8 tree_check(tree_node*, char const*, int, char const*, tree_code)
>>         ../../gcc/gcc/tree.h:2857
>>   0xbf0fb8 fold_builtin_alloca_with_align
>>         ../../gcc/gcc/tree-ssa-ccp.c:2110
> [...]
> 
>> If no any additional response, I shall try to fix it in the next month.
> 
> No need to enter a new bug report, this appears to be
> <https://gcc.gnu.org/PR67055>.  It is also observed for other
> ports, at least with the original C++ test-case there.  I added
> a reduced rcutorture.c to the bug-report.  Thanks.
> 

OK, thanks. :-)

And next, I shall try to cross compile kernel for another archs, hope I
can start in 2015-08-15 -- during these days I am trying tilegx qemu for
gcc testsuite (mainly for floating point insns and pending issues).

Thanks.
-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed
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