On 2/13/23 14:43, David Howells wrote:
Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
[ 4.660118] PC is at 0x0
[ 4.660248] LR is at filemap_read_folio+0x17/0x4e
Do you know what the filesystem is that's being read from?
I think the problem is that there are a few filesystems/drivers that call
generic_file_splice_read() but don't have a ->read_folio(). Now most of these
can be made to call direct_splice_read() instead, leaving just coda, overlayfs
and shmem.
Coda and overlayfs can be made to pass the request down a layer. I'm about to
look into shmem.
Both are initrd.
Guenter
