All packages up to date, freshly booted virtual machine.  Fairly heavy NFS 
usage (unzipping numerous 100Mb archives).

[  907.749004] CacheFiles: Assertion failed
[  907.749010] CacheFiles: 1 == 0 is false
[  907.749043] ------------[ cut here ]------------
[  907.749051] kernel BUG at 
/build/linux-2PgYgH/linux-3.16.43/fs/cachefiles/interface.c:332!
[  907.749061] invalid opcode: 0000 [#1] SMP
[snip]
[  907.749139] Workqueue: fscache_object fscache_object_work_func [fscache]
[  907.749151] task: ffff8800f58d4250 ti: ffff8800f83f0000 task.ti: 
ffff8800f83f0000
[  907.749159] RIP: e030:[<ffffffffa0227f58>]  [<ffffffffa0227f58>] 
cachefiles_put_object+0x218/0x290 [cachefiles]

Is fscache_object not thread safe on SMP, or similar...?

Marek Isalski
Technical Director, Faelix Limited, https://faelix.net/

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