scanning with: file_systems/bfs/v1
bfs: mounted "ramwork" (root node at 514, device = /dev/disk/virtual/ram/0/raw)

vm_page_fault: kernel thread accessing invalid user memory!

vm_page_fault: vm_soft_fault returned error 'Bad address' on fault at 0x4, ip 0x800ea56d, write 0, user 0, thread 0x44f

PANIC: vm_page_fault: unhandled page fault in kernel space at 0x4, ip 0x800ea56d



Welcome to Kernel Debugging Land...

Thread 1103 "device event" running on CPU 0

stack trace for thread 1103 "device event"

    kernel stack: 0xccf10000 to 0xccf14000

frame               caller     <image>:function + offset

 0 ccf13914 (+  32) 801506ee   <kernel_x86> arch_debug_stack_trace + 0x12

 1 ccf13934 (+  16) 800aab33   <kernel_x86> stack_trace_trampoline(NULL) + 0x0b

 2 ccf13944 (+  12) 80141e82   <kernel_x86> arch_debug_call_with_fault_handler + 0x1b

 3 ccf13950 (+  48) 800ac65b   <kernel_x86> debug_call_with_fault_handler + 0x5b

 4 ccf13980 (+  64) 800aad4f   <kernel_x86> kernel_debugger_loop(0x80194dd7 "PANIC: ", 0x801abcc0 "vm_page_fault: unhandled page fault in kernel space at 0x%lx, ip 0x%lx

", 0xccf13a2c "", int32: 0) + 0x217

 5 ccf139c0 (+  48) 800ab0cb   <kernel_x86> kernel_debugger_internal(0x80194dd7 "PANIC: ", 0x801abcc0 "vm_page_fault: unhandled page fault in kernel space at 0x%lx, ip 0x%lx

", 0xccf13a2c "", int32: 0) + 0x53

 6 ccf139f0 (+  48) 800ac9e6   <kernel_x86> panic + 0x3a

 7 ccf13a20 (+ 144) 801268bd   <kernel_x86> vm_page_fault + 0x145

 8 ccf13ab0 (+  80) 80151fd1   <kernel_x86> x86_page_fault_exception + 0x1f9

 9 ccf13b00 (+  12) 8014484c   <kernel_x86> int_bottom + 0x3c

kernel iframe at 0xccf13b0c (end = 0xccf13b5c)

 eax 0x0           ebx 0xc800         ecx 0xd34e4320  edx 0x44f

 esi 0x0           edi 0xd34e4320     ebp 0xccf13b94  esp 0xccf13b40

 eip 0x800ea56d eflags 0x213213  

 vector: 0xe, error code: 0x0

10 ccf13b0c (+ 136) 800ea56d   <kernel_x86> _kern_writev + 0xcd

11 ccf13b94 (+  64) 801623ba   <kernel_x86> writev_pos + 0x36

12 ccf13bd4 (+ 240) 813df498   <bfs> Journal<0xd34e8c18>::_WriteTransactionToLog() + 0x5d8

13 ccf13cc4 (+  48) 813df8c5   <bfs> Journal<0xd34e8c18>::_FlushLog(true) + 0x95

14 ccf13cf4 (+  48) 813df95f   <bfs> Journal<0xd34e8c18>::FlushLogAndBlocks() + 0x2b

15 ccf13d24 (+  48) 813de470   <bfs> _._7Journal + 0x24

16 ccf13d54 (+  64) 813e3ee4   <bfs> Volume<0x824b8100>::Unmount() + 0x94

17 ccf13d94 (+  48) 813e5340   <bfs> bfs_unmount(fs_volume*: 0xd34e4350) + 0x24

18 ccf13dc4 (+ 112) 80102cac   <kernel_x86> fs_unmount(0x0 "<NULL>", int32: 8, uint32: 0x80000001, true) + 0x668

19 ccf13e34 (+  32) 800fcbc7   <kernel_x86> vfs_unmount + 0x1b

20 ccf13e54 (+  48) 800e3718   <kernel_x86> BPrivate::DiskDevice::KPartition<0x82047d30>::UninitializeContents(true) + 0x80

21 ccf13e84 (+  64) 800e1c95   <kernel_x86> BPrivate::DiskDevice::KPartition<0x82047d30>::PrepareForRemoval() + 0x25

22 ccf13ec4 (+  48) 800df06d   <kernel_x86> BPrivate::DiskDevice::KDiskDeviceManager<0x8201a9c0>::PartitionRemoved(BPrivate::DiskDevice::KPartition*: 0x82047d30) + 0x29

23 ccf13ef4 (+  48) 800dfe07   <kernel_x86> BPrivate::DiskDevice::KDiskDeviceManager<0x8201a9c0>::_RemoveDevice(BPrivate::DiskDevice::KDiskDevice*: 0x82047d30) + 0x43

24 ccf13f24 (+  64) 800de9c5   <kernel_x86> BPrivate::DiskDevice::KDiskDeviceManager<0x8201a9c0>::DeleteDevice(0xd35c6e50 "/dev/disk/virtual/ram/0/raw") + 0x71

25 ccf13f64 (+  80) 800e6fc7   <kernel_x86> BPrivate::DiskDevice::KDiskDeviceManager::DeviceWatcher<0xd34e6e60>::_HandleDeviceEvent(0xcccccccc) + 0xf7

26 ccf13fb4 (+  48) 80089b9f   <kernel_x86> common_thread_entry(0xccf13ff0) + 0x3b

kdebug> reboot
reboot