Jul 22 13:29:35 sida kernel: Eeek! page_mapcount(page) went negative! (-1)
Jul 22 13:29:35 sida kernel:   page pfn = 3e716
Jul 22 13:29:35 sida kernel:   page->flags = 8001006c
Jul 22 13:29:35 sida kernel:   page->count = 5
Jul 22 13:29:35 sida kernel:   page->mapping = f792a718
Jul 22 13:29:35 sida kernel:   vma->vm_ops = 0xc03f7388
Jul 22 13:29:35 sida kernel:   vma->vm_ops->nopage = filemap_nopage+0x0/0x2ee
Jul 22 13:29:35 sida kernel:   vma->vm_file->f_op->mmap = generic_file_mmap+0x0/0x37
Jul 22 13:29:35 sida kernel: ------------[ cut here ]------------
Jul 22 13:29:35 sida kernel: kernel BUG at mm/rmap.c:596!
Jul 22 13:29:35 sida kernel: invalid opcode: 0000 [#6]
Jul 22 13:29:35 sida kernel: SMP 
Jul 22 13:29:35 sida kernel: Modules linked in:
Jul 22 13:29:35 sida kernel: CPU:    1
Jul 22 13:29:35 sida kernel: EIP:    0060:[<c014bfe9>]    Tainted: G    B  VLI
Jul 22 13:29:35 sida kernel: EFLAGS: 00010292   (2.6.21 #6)
Jul 22 13:29:35 sida kernel: EIP is at page_remove_rmap+0xce/0xed
Jul 22 13:29:35 sida kernel: eax: 0000003b   ebx: c17ce2c0   ecx: 00000046   edx: 00000046
Jul 22 13:29:35 sida kernel: esi: f15a65c0   edi: 00000020   ebp: e0a6d1f8   esp: f2449ee0
Jul 22 13:29:35 sida kernel: ds: 007b   es: 007b   fs: 00d8  gs: 0000  ss: 0068
Jul 22 13:29:35 sida kernel: Process sshd (pid: 26444, ti=f2448000 task=c19d60b0 task.ti=f2448000)
Jul 22 13:29:35 sida kernel: Stack: c03a1f2c f792a718 c17ce2c0 0807e000 c0146d58 00000000 f15a65c0 f2449f58 
Jul 22 13:29:35 sida kernel:        00000000 00000001 08095000 ce648080 ca2b7040 c17ee4a0 00000000 ffffffe1 
Jul 22 13:29:35 sida kernel:        c1414dac ce648080 003e0fe8 08095000 00000000 f2449f58 f15a65c0 ca2b7040 
Jul 22 13:29:35 sida kernel: Call Trace:
Jul 22 13:29:35 sida kernel:  [<c0146d58>] unmap_vmas+0x25c/0x4a8
Jul 22 13:29:35 sida kernel:  [<c0149707>] exit_mmap+0x75/0xe1
Jul 22 13:29:35 sida kernel:  [<c0119173>] mmput+0x1d/0x75
Jul 22 13:29:35 sida kernel:  [<c011d603>] do_exit+0x1aa/0x697
Jul 22 13:29:35 sida kernel:  [<c011db5c>] sys_exit_group+0x0/0xd
Jul 22 13:29:35 sida kernel:  [<c0103c44>] sysenter_past_esp+0x5d/0x81
Jul 22 13:29:35 sida kernel:  =======================
Jul 22 13:29:35 sida kernel: Code: c0 74 0d 8b 50 08 b8 5c 1f 3a c0 e8 07 8f fe ff 8b 46 48 85 c0 74 14 8b 40 10 85 c0 74 0d 8b 50 2c b8 7b 1f 3a c0 e8 ec 8e fe ff <0f> 0b eb fe 8b 53 10 83 e2 01 f7 da 83 c2 04 89 d8 59 5b 5b 5e 
Jul 22 13:29:35 sida kernel: EIP: [<c014bfe9>] page_remove_rmap+0xce/0xed SS:ESP 0068:f2449ee0
Jul 22 13:29:35 sida kernel: Fixing recursive fault but reboot is needed!