* [PATCH]: MIPS: Select CONFIG_MIPS_O32_FP64_SUPPORT if 64bit kernel and o32
@ 2015-04-01 6:49 Joshua Kinard
2015-04-01 8:01 ` Markos Chandras
0 siblings, 1 reply; 3+ messages in thread
From: Joshua Kinard @ 2015-04-01 6:49 UTC (permalink / raw)
To: Ralf Baechle; +Cc: Linux MIPS List
From: Joshua Kinard <kumba@gentoo.org>
Select CONFIG_MIPS_O32_FP64_SUPPORT by default if CONFIG_64BIT and
CONFIG_MIPS32_O32 are selected. This avoids breaking things when
booting into an o32 userland under a 64bit kernel. Symptoms of not
selecting CONFIG_MIPS_O32_FP64_SUPPORT can include OpenSSH claiming that
the "PRNG is not seeded" and Python programs to fail with either a
SIGSEGV or errors regarding "float NaN".
Signed-off-by: Joshua Kinard <kumba@gentoo.org>
---
arch/mips/Kconfig | 1 +
1 file changed, 1 insertion(+)
mips-fix-o32-fp64-on-mips64.patch
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 294f82e..1b826ed 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2736,6 +2736,7 @@ config MIPS32_O32
select COMPAT
select MIPS32_COMPAT
select SYSVIPC_COMPAT if SYSVIPC
+ select MIPS_O32_FP64_SUPPORT if 64BIT
help
Select this option if you want to run o32 binaries. These are pure
32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH]: MIPS: Select CONFIG_MIPS_O32_FP64_SUPPORT if 64bit kernel and o32
2015-04-01 6:49 [PATCH]: MIPS: Select CONFIG_MIPS_O32_FP64_SUPPORT if 64bit kernel and o32 Joshua Kinard
@ 2015-04-01 8:01 ` Markos Chandras
2015-04-01 18:37 ` Joshua Kinard
0 siblings, 1 reply; 3+ messages in thread
From: Markos Chandras @ 2015-04-01 8:01 UTC (permalink / raw)
To: Joshua Kinard, Ralf Baechle; +Cc: Linux MIPS List
On 04/01/2015 07:49 AM, Joshua Kinard wrote:
> From: Joshua Kinard <kumba@gentoo.org>
>
> Select CONFIG_MIPS_O32_FP64_SUPPORT by default if CONFIG_64BIT and
> CONFIG_MIPS32_O32 are selected. This avoids breaking things when
> booting into an o32 userland under a 64bit kernel. Symptoms of not
> selecting CONFIG_MIPS_O32_FP64_SUPPORT can include OpenSSH claiming that
> the "PRNG is not seeded" and Python programs to fail with either a
> SIGSEGV or errors regarding "float NaN".
>
> Signed-off-by: Joshua Kinard <kumba@gentoo.org>
> ---
> arch/mips/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> mips-fix-o32-fp64-on-mips64.patch
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 294f82e..1b826ed 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -2736,6 +2736,7 @@ config MIPS32_O32
> select COMPAT
> select MIPS32_COMPAT
> select SYSVIPC_COMPAT if SYSVIPC
> + select MIPS_O32_FP64_SUPPORT if 64BIT
> help
> Select this option if you want to run o32 binaries. These are pure
> 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
>
>
Hi,
No this is not a good solution. This has already been fixed in
mips-for-linux-next and might make it to 4.0 in time
https://patchwork.linux-mips.org/patch/9344/
can you try that patch instead?
--
markos
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH]: MIPS: Select CONFIG_MIPS_O32_FP64_SUPPORT if 64bit kernel and o32
2015-04-01 8:01 ` Markos Chandras
@ 2015-04-01 18:37 ` Joshua Kinard
0 siblings, 0 replies; 3+ messages in thread
From: Joshua Kinard @ 2015-04-01 18:37 UTC (permalink / raw)
To: Markos Chandras, Ralf Baechle; +Cc: Linux MIPS List
On 04/01/2015 04:01, Markos Chandras wrote:
> On 04/01/2015 07:49 AM, Joshua Kinard wrote:
>> From: Joshua Kinard <kumba@gentoo.org>
>>
>> Select CONFIG_MIPS_O32_FP64_SUPPORT by default if CONFIG_64BIT and
>> CONFIG_MIPS32_O32 are selected. This avoids breaking things when
>> booting into an o32 userland under a 64bit kernel. Symptoms of not
>> selecting CONFIG_MIPS_O32_FP64_SUPPORT can include OpenSSH claiming that
>> the "PRNG is not seeded" and Python programs to fail with either a
>> SIGSEGV or errors regarding "float NaN".
>>
>> Signed-off-by: Joshua Kinard <kumba@gentoo.org>
>> ---
>> arch/mips/Kconfig | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> mips-fix-o32-fp64-on-mips64.patch
>> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
>> index 294f82e..1b826ed 100644
>> --- a/arch/mips/Kconfig
>> +++ b/arch/mips/Kconfig
>> @@ -2736,6 +2736,7 @@ config MIPS32_O32
>> select COMPAT
>> select MIPS32_COMPAT
>> select SYSVIPC_COMPAT if SYSVIPC
>> + select MIPS_O32_FP64_SUPPORT if 64BIT
>> help
>> Select this option if you want to run o32 binaries. These are pure
>> 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of
>>
>>
> Hi,
>
> No this is not a good solution. This has already been fixed in
> mips-for-linux-next and might make it to 4.0 in time
>
> https://patchwork.linux-mips.org/patch/9344/
>
> can you try that patch instead?
This appears to fix the problem. I definitely suggest this get into 4.0, or
some machines out there are going to break if CONFIG_MIPS_O32_FP64_SUPPORT
isn't selected. This one was stumping me for a few hours last night...
Thanks!,
--J
^ permalink raw reply [flat|nested] 3+ messages in thread
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2015-04-01 6:49 [PATCH]: MIPS: Select CONFIG_MIPS_O32_FP64_SUPPORT if 64bit kernel and o32 Joshua Kinard
2015-04-01 8:01 ` Markos Chandras
2015-04-01 18:37 ` Joshua Kinard
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