panic: handle_workitem_remove: bad file delta
KDB: enter: panic
[thread pid 53 tid 100060 ]
Stopped at      kdb_enter+0x30: leave   
db> where
Tracing pid 53 tid 100060 td 0xc1e75600
kdb_enter(c07a6126,c080c740,c07b2824,d58afc30,100) at kdb_enter+0x30
panic(c07b2824,24933,0,d58afc44,c3478be0) at panic+0xd5
handle_workitem_remove(c2e2ad80,0,2,cef,1) at handle_workitem_remove+0x137
process_worklist_item(0,0,0,c1e75600,c0800560) at process_worklist_item+0x253
softdep_process_worklist(0,c1e75600,68,c07aac30,0) at softdep_process_worklist+0x180
sched_sync(0,d58afd38,0,0,0) at sched_sync+0x396
fork_exit(c0610e20,0,d58afd38) at fork_exit+0x7f
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xd58afd6c, ebp = 0 ---
db>