On Wed, Mar 28, 2018 at 09:12:09PM +0200, Waldemar Brodkorb wrote:

Hi,

I believe OpenWrt disabled uClibc-ng support later.

Nope. The default may now be MUSL, but uClibc still is available as a
libc option on master, and the version was bumped to v1.0.28 two months
ago, so it definitely appears to be in use:
 https://github.com/openwrt/openwrt/tree/master/toolchain/uClibc

The uClibc-ng config however makes no mention of
UCLIBC_USE_MIPS_PREFETCH, so by default it will be enabled:
 https://github.com/openwrt/openwrt/blob/master/toolchain/uClibc/config/mips

I will log an issue on this so others don't fall victim to this.

good luck

Waldemar

Am 28.03.2018 um 20:54 schrieb Pieter Smith <pieter@boesman.nl>:

On Wed, Mar 28, 2018 at 08:27:26PM +0200, Waldemar Brodkorb wrote:

Hi,

Pieter Smith wrote,

It looks like memmove() is broken by design for mips. This has come up

before in a previous thread, but with no proper resolution:

https://mailman.uclibc-ng.org/pipermail/devel/2016-April/000837.html

IIRC, the solution was found later, see:

https://mailman.uclibc-ng.org/pipermail/devel/2016-May/000918.html

Thanks! I missed that one.

Disable UCLIBC_USE_MIPS_PREFETCH.

Prefetch is broken on some MIPS cores.

Pity. This was only introduced in v1.0.15. We are still stuck with

OpenWRT Chaos Calmer for which the toolchain is based on v1.0.14. We

should be switching to OpenWRT DD soon, so I should be able to disable

UCLIBC_USE_MIPS_PREFETCH.

I did however notice that this is not done even on the latest OpenWRT. I

will go knocking on the OpenWRT communitie's door.

best regards

Waldemar

Thanks,

Pieter

- Pieter