Re: "netfs: Can't donate prior to front"

[Max Kellermann]

On Mon, Feb 10, 2025 at 6:41 PM Max Kellermann <max.kellermann@xxxxxxxxx> wrote:
> Additionally, here you have a file with a dump of *subreq and *req (of
> R=8). I have added additional fields "start0" and "len0" which contain
> the values initially set on these.

btw. this happens because there is only one subrequest (R=8[7]), but
the start offset is being rounded down (folio_order=2), thus
"fpos<start":

 (gdb) p/x fpos
 $5 = 0x1c0000
 (gdb) p/x fend
 $6 = 0x200000
 (gdb) p/x start
 $7 = 0x1c6000