Re: [PATCH 2/2] Revert "splice: Do splice read from a buffered file without using ITER_PIPE"

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On 15.02.2023 14:01, David Howells wrote:
> Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> wrote:
> 
>> next-20230213 introduced commit d9722a475711 ("splice: Do splice read from
>> a buffered file without using ITER_PIPE") which broke booting on any
>> Qualcomm ARM64 device I grabbed, dereferencing a null pointer in
>> generic_filesplice_read+0xf8/x598. Revert it to make the devices
>> bootable again.
>>
>> This reverts commit d9722a47571104f7fa1eeb5ec59044d3607c6070.
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
> 
> Commit d9722a47571104f7fa1eeb5ec59044d3607c6070 was part of v13 of my
> patches.  This got replaced yesterday by a newer version which may or may not
> have made it into linux-next.
> 
> This is probably a known bug fixed in the v14 by making shmem have its own
> splice-read function.
> 
> Can you try this?
> 
> 	https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=iov-extract
next-20230216 boots fine again, thanks!

> 
> (Also, can you include me in the cc list as I'm the author of the patch you
> reverted?)
Ugh.. I thought b4 would have done that for me.. weird..

Konrad
> 
> Thanks,
> David
> 



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