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Hi,

see topic

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Jun 19 10:50:11 Server3 kernel: ------------[ cut here ]------------
Jun 19 10:50:11 Server3 kernel: SMP
Jun 19 10:50:11 Server3 kernel: Modules linked in:
Jun 19 10:50:11 Server3 kernel: CPU:    0
Jun 19 10:50:11 Server3 kernel: EIP:    0060:[prio_tree_replace+70/112]    Tainted: G S    VLI
Jun 19 10:50:11 Server3 kernel: EFLAGS: 00010213   (2.6.11.12-grsec)
Jun 19 10:50:11 Server3 kernel: eax: d472b264   ebx: f7ae1648   ecx: f6a7f098   edx: d472b264
Jun 19 10:50:11 Server3 kernel: esi: e721de88   edi: d472b264   ebp: f7ae1648   esp: e721de6c
Jun 19 10:50:11 Server3 kernel: ds: 007b   es: 007b   ss: 0068
Jun 19 10:50:11 Server3 kernel: Process sh (pid: 17543, threadinfo=e721c000 task=f7562560)
Jun 19 10:50:11 Server3 kernel: Stack: f6a7f098 c0293e5b f7ae1648 d472b264 f6a7f098 e721de8c f7ae1648 00000000
Jun 19 10:50:11 Server3 kernel:        00000000 f7ae1630 f7ae1658 ebf071a0 d472b23c c01a520e f7ae1648 d472b264
Jun 19 10:50:11 Server3 kernel:        f7ae1630 d472b8b4 d472b23c c37e1340 c37e137c c01a7c4b d472b23c 00000000
Jun 19 10:50:11 Server3 kernel: Call Trace:
Jun 19 10:50:11 Server3 kernel:  [prio_tree_remove+123/240]
Jun 19 10:50:11 Server3 kernel:  [remove_vm_struct+62/160]
Jun 19 10:50:11 Server3 kernel:  [exit_mmap+315/400]
Jun 19 10:50:11 Server3 kernel:  [mmput+56/160]
Jun 19 10:50:11 Server3 kernel:  [do_exit+171/704]
Jun 19 10:50:11 Server3 kernel:  [do_group_exit+60/176]
Jun 19 10:50:11 Server3 kernel:  [syscall_call+7/11]
Jun 19 10:50:11 Server3 kernel:  [restore_all+0/17]
Jun 19 10:50:11 Server3 kernel: Code: 34 39 13 75 26 89 49 08 89 0b 8b 02 39 d0 74 07 89 01 8b 02 89 48 08 8b 42 04 39 d0 74 09 89 41 04 8b 42 04 89 48 08 5b 89 d0 c3 <0f> 0b 95 00 40 e7 39 c0 eb d0 89 41 08 8b 42 08 39 10 74 05 89

And than the Server freeze

Any idea ?

A-N wrote:

Code: Select all

Jun 19 10:50:11 Server3 kernel: ------------[ cut here ]------------
Jun 19 10:50:11 Server3 kernel: SMP
Jun 19 10:50:11 Server3 kernel: Modules linked in:
Jun 19 10:50:11 Server3 kernel: CPU:    0
Jun 19 10:50:11 Server3 kernel: EIP:    0060:[prio_tree_replace+70/112]    Tainted: G S    VLI

the 'S' taint flag indicates that your SMP system has non-certified AMDs in it, so at least try to reproduce it without SMP (or with supported CPUs), also without grsec.

have a look at :

http://forums.grsecurity.net/viewtopic.php?t=1179