Re: [PATCH v7 00/16] mm: jit/text allocator

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On Mon, Apr 29, 2024 at 09:29:20AM -0700, Luis Chamberlain wrote:
> On Mon, Apr 29, 2024 at 03:16:04PM +0300, Mike Rapoport wrote:
> > From: "Mike Rapoport (IBM)" <rppt@xxxxxxxxxx>
> > 
> > Hi,
> > 
> > The patches are also available in git:
> > https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git/log/?h=execmem/v7
> > 
> > v7 changes:
> > * define MODULE_{VADDR,END} for riscv32 to fix the build and avoid
> >   #ifdefs in a function body
> > * add Acks, thanks everybody
> 
> Thanks, I've pushed this to modules-next for further exposure / testing.
> Given the status of testing so far with prior revisions, in that only a
> few issues were found and that those were fixed, and the status of
> reviews, this just might be ripe for v6.10.

Looks like there is still some work needed. I've picked up next-20240501
and on arch/mips with CONFIG_MODULE_COMPRESS_XZ=y and CONFIG_MODULE_DECOMPRESS=y
I fail to load any module:

# modprobe rfkill
[11746.539090] Invalid ELF header magic: != ELF
[11746.587149] execmem: unable to allocate memory
modprobe: can't load module rfkill (kernel/net/rfkill/rfkill.ko.xz): Out of memory

The (hopefully) relevant parts of my .config:

CONFIG_HAVE_KERNEL_XZ=y
CONFIG_MIPS=y
CONFIG_RALINK=y
CONFIG_SOC_MT7621=y
CONFIG_EXECMEM=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_MODULES=y
# CONFIG_MODULE_DEBUG is not set
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODULE_UNLOAD_TAINT_TRACKING is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
# CONFIG_MODULE_COMPRESS_NONE is not set
# CONFIG_MODULE_COMPRESS_GZIP is not set
CONFIG_MODULE_COMPRESS_XZ=y
# CONFIG_MODULE_COMPRESS_ZSTD is not set
CONFIG_MODULE_DECOMPRESS=y
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODULES_TREE_LOOKUP=y


Best regards,
Liviu


> 
>   Luis
> 

-- 
Everyone who uses computers frequently has had, from time to time,
a mad desire to attack the precocious abacus with an axe.
       	   	      	     	  -- John D. Clark, Ignition!




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