2.4.9: GCC 3.0 problem in "acct.c"

2.4.9: GCC 3.0 problem in "acct.c"

[peter k.]

i just updated my gcc from 2.96 to 3.0.1 and now i cant compile kernel 2.4.9
anymore, make bzImage fails with the following error message:

acct.c: In function `check_free_space':
acct.c:147: Unrecognizable insn:
(insn 335 102 336 (parallel[
            (set (reg/v:SI 2 ecx [44])
                (const_int 0 [0x0]))
            (clobber (reg:CC 17 flags))
        ] ) -1 (insn_list:REG_DEP_ANTI 100 (insn_list:REG_DEP_ANTI 102
(nil)))
    (expr_list:REG_UNUSED (reg:CC 17 flags)
        (nil)))
acct.c:147: Internal compiler error in insn_default_length, at
insn-attrtab.c:223

can anyone tell me how to fix this?

thx

Re: 2.4.9: GCC 3.0 problem in "acct.c"

[Alan Cox]

> i just updated my gcc from 2.96 to 3.0.1 and now i cant compile kernel 2.4.9
> anymore, make bzImage fails with the following error message:
> 
> acct.c: In function `check_free_space':
> acct.c:147: Unrecognizable insn:
> (insn 335 102 336 (parallel[
>             (set (reg/v:SI 2 ecx [44])
>                 (const_int 0 [0x0]))
>             (clobber (reg:CC 17 flags))
>         ] ) -1 (insn_list:REG_DEP_ANTI 100 (insn_list:REG_DEP_ANTI 102
> (nil)))
>     (expr_list:REG_UNUSED (reg:CC 17 flags)
>         (nil)))
> acct.c:147: Internal compiler error in insn_default_length, at
> insn-attrtab.c:223
> 
> can anyone tell me how to fix this?

Use gcc 2.96 or gcc 3.0.0. You broke the compiler. Please also see the gcc bug
reporting instructions. You will actually make a gcc hacker very happy 
reporting that problem.

Re: 2.4.9: GCC 3.0 problem in "acct.c"

[Santeri Kannisto]

Alan Cox wrote:
> peter k. wrote:
>> i just updated my gcc from 2.96 to 3.0.1 and now i cant compile kernel 2.4.9
>> anymore, make bzImage fails with the following error message:
>> 
>> acct.c: In function `check_free_space':
>> acct.c:147: Unrecognizable insn:
>> (insn 335 102 336 (parallel[
>>             (set (reg/v:SI 2 ecx [44])
>>                 (const_int 0 [0x0]))
>>             (clobber (reg:CC 17 flags))
>>         ] ) -1 (insn_list:REG_DEP_ANTI 100 (insn_list:REG_DEP_ANTI 102
>> (nil)))
>>     (expr_list:REG_UNUSED (reg:CC 17 flags)
>>         (nil)))
>> acct.c:147: Internal compiler error in insn_default_length, at
>> insn-attrtab.c:223
>> 
>> can anyone tell me how to fix this?
>
> Use gcc 2.96 or gcc 3.0.0. You broke the compiler. Please also see the gcc bug
> reporting instructions. You will actually make a gcc hacker very happy 
> reporting that problem.

Except that a similar problem with capi existed allready with gcc 3.0 +
kernels 2.4.*, and that problem was reported to gcc people multiple 
times. But it is still broken in gcc 3.0.1:

bp2.c:414: warning: `sbp2_host_info_lock' defined but not used
capi.c: In function `capi_ioctl':
capi.c:1031: Unrecognizable insn:
(insn/i 1675 3103 3100 (parallel[ capi.c:1031: Internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

So, does anyone have any ideas? That problem is critical because
it makes ISDN (capi 2) unusable with kernels 2.4.* + gcc 3.0.* 

All other things seem to function pretty well with 2.4.9 + 3.0.1.

-- 
Mr. Santeri Kannisto, CTO, sk@sot.com - http://www.sot.com/
Ou SOT Finnish Software Engineering   - fax  +372 5 171 941
Kreutzwaldi 7-4, EE-10124 Tallinn     - tel. +372 5 044 941
ESTONIA                             - http://bestlinux.net/

Re: 2.4.9: GCC 3.0 problem in "acct.c"

[Josh McKinney]

On approximately Thu, Aug 23, 2001 at 01:51:33AM +0300, Santeri Kannisto wrote:
> Except that a similar problem with capi existed allready with gcc 3.0 +
> kernels 2.4.*, and that problem was reported to gcc people multiple 
> times. But it is still broken in gcc 3.0.1:
> 
> bp2.c:414: warning: `sbp2_host_info_lock' defined but not used
> capi.c: In function `capi_ioctl':
> capi.c:1031: Unrecognizable insn:
> (insn/i 1675 3103 3100 (parallel[ capi.c:1031: Internal error: Segmentation fault
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
> 
> So, does anyone have any ideas? That problem is critical because
> it makes ISDN (capi 2) unusable with kernels 2.4.* + gcc 3.0.* 
> 
> All other things seem to function pretty well with 2.4.9 + 3.0.1.

I get the same sort of Unrecognizable insn: error in signal.c with my setup.
This is true today with the latest cvs gcc.

Josh