id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,blockedby,blocking,platform 2541,"PANIC: vm_page_fault: unhandled page fault in kernel space at 0xdeadbefb, ip 0x80037c47 when rapidly mount/unmounting a volume",anevilyak,axeld,"If I quickly mount/unmount a BFS volume (easiest way for me was cmd+m/cmd+u in DriveSetup), I get the following kernel panic every single time. {{{ stack trace for thread 210 ""bfs block allocator"" kernel stack: 0xa105b000 to 0xa105f000 frame caller :function + offset 0 a105eac4 (+ 48) 800564d5 :invoke_debugger_command + 0x00ed 1 a105eaf4 (+ 64) 800562cd :invoke_pipe_segment__FP21debugger_command_pipelPc + 0x0079 2 a105eb34 (+ 64) 80056615 :invoke_debugger_command_pipe + 0x009d 3 a105eb74 (+ 48) 800574f0 :_ParseCommandPipe__16ExpressionParserRi + 0x0234 4 a105eba4 (+ 48) 80056ea6 :EvaluateCommand__16ExpressionParserPCcRi + 0x01de 5 a105ebd4 (+ 224) 800588bc :evaluate_debug_command + 0x0088 6 a105ecb4 (+ 64) 80054ab2 :kernel_debugger_loop__Fv + 0x017a 7 a105ecf4 (+ 48) 800554e3 :kernel_debugger + 0x0117 8 a105ed24 (+ 192) 800553c1 :panic + 0x0029 9 a105ede4 (+ 64) 800a62fd :vm_page_fault + 0x00b1 10 a105ee24 (+ 64) 800b304d :page_fault_exception + 0x00b1 11 a105ee64 (+ 12) 800b65a6 :int_bottom + 0x0036 (nearest) iframe at 0xa105ee70 (end = 0xa105eec8) eax 0x1 ebx 0xdeadbef3 ecx 0x915894c0 edx 0xd2 esi 0xd2 edi 0x19d9c ebp 0xa105eed8 esp 0xa105eea4 eip 0x80037c47 eflags 0x10202 vector: 0xe, error code: 0x0 12 a105ee70 (+ 104) 80037c47 :recursive_lock_lock + 0x003f 13 a105eed8 (+ 48) 8079ba3f :Lock__7JournalP11Transaction + 0x0023 14 a105ef08 (+ 48) 8079be05 :Start__11TransactionP6Volumex + 0x0035 15 a105ef38 (+ 160) 8078886e :_Initialize__14BlockAllocatorP14BlockAllocator + 0x032e 16 a105efd8 (+ 32) 8004c7bf :_create_kernel_thread_kentry__Fv + 0x001b 17 a105eff8 (+1593446408) 8004c75c :thread_kthread_exit__Fv + 0x0000 kdebug> }}}",bug,closed,high,R1/alpha1,File Systems/BFS,R1/pre-alpha1,fixed,,,,,All