fuse: trying to steal weird page

[Nikolaus Rath <Nikolaus@rath.org>]

Hi,

I am seeing relatively regular occurences of

$ sudo dmesg | tail
[21929.138815] fuse: trying to steal weird page
[21929.138821]   page=00000000a7dd2617 index=64 flags=17fffc0000000ad, count=1, mapcount=0, mapping=          (null)
[21930.647338] fuse: trying to steal weird page
[21930.647345]   page=00000000a07f32af index=2848 flags=17fffc0000000ad, count=1, mapcount=0, mapping=          (null)
[21932.338873] fuse: trying to steal weird page
[21932.338879]   page=0000000067e3a012 index=64 flags=17fffc0000000ad, count=1, mapcount=0, mapping=          (null)
[21933.930703] fuse: trying to steal weird page
[21933.930710]   page=00000000046feb25 index=845 flags=17fffc0000000ad, count=1, mapcount=0, mapping=          (null)
[21936.163174] fuse: trying to steal weird page
[21936.163180]   page=00000000fb80fe27 index=0 flags=17fffc0000000ad, count=1, mapcount=0, mapping=          (null)

They do not seem to correlate with userspace errors.

(I am debugging a mysterious EBADF error that I get from an nftw() walk
and that disappears when running under strace(), but it its occurence
does not correlate).


What are the implications of the above kernel message? Is there a way to
provide more debugging information?

$ uname -a
Linux vostro.rath.org 4.18.0-0.bpo.1-amd64 #1 SMP Debian 4.18.6-1~bpo9+1 (2018-09-13) x86_64 GNU/Linux

Best,
-Nikolaus

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