jffs2_mark_node_obsolete() called with wbuf active but alloc_sem not locked!

[??]

test program: lls.c attached
usage: "./lls /"
---------------------------
jffs2_mark_node_obsolete() called with wbuf active but alloc_sem not locked!
kernel BUG at nodemgmt.c:400!
Unable to handle kernel paging request at virtual address 00000000, epc ==
80094
dd8, ra == 80094dd8
Oops in fault.c:do_page_fault, line 204:
$0 : 00000000 10003c00 0000001e 00000001 801ce7d0 00000001 00000001 00810303
$8 : b4000090 0000001e b4000098 80000000 0000000d 0000000a 50000000 fffffff9
$16: 8018c9fc 808930e8 00000000 8018c350 80bb7620 80893120 00000001 00000004
$24: ffffffff 80dafc8a                   80dae000 80dafdd8 802ae1ec 80094dd8
Hi : 00001b1c
Lo : 00000265
epc  : 80094dd8    Not tainted
Status: 10003c04
Cause : 8000000c
Process rmdir (pid: 96, stackpage=80dae000)
Stack: 8018c350 8018c9fc 00000190 008102e2 801e74cc 801e74ce 800184a8
00000400
       808930e8 8009e1d0 8018dfea 808930e8 802c4640 00000000 802c4640
00000000
       806aef00 808a0560 0000002c 808930e8 00000001 80097f1c 8018dfb4
802c4655
       00000350 00000000 00000004 004c830c 00000000 80e4a970 004c830c
00001cf4
       806aef00 802ae190 808a04b8 808a0430 802ae190 808a04b8 00000002
00000001
       7ffffcb0 ...
Call Trace: [<8018c350>] [<8018c9fc>] [<800184a8>] [<8009e1d0>] [<8018dfea>]
[<8
0097f1c>]
 [<8018dfb4>] [<8008ed38>] [<8005e33c>] [<8008fd54>] [<8005103c>]
[<80050e70>]
 [<800544f4>] [<80052c10>] [<800547a4>] [<80054694>] [<800107ac>]

Code: 02002821  0c006099  24060190 <08025397> ae400000  3c02801d  8c42f76c
0000
0000  3042007f
Kernel panic: Aiee, killing interrupt handler!
In interrupt handler - not syncing

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