| 1 |
>> PaX only logs bad behaviour when it's about unintended code execution, |
| 2 |
>> this bug here is a kernel-internal consistency check, it doesn't mean |
| 3 |
>> that the triggering userland app has a bug, it may very well just manage |
| 4 |
>> to trigger a kernel bug (which in turn could be in PaX for all i know). |
| 5 |
>> it'd be nice if you could find a way to reproduce it, also if you could |
| 6 |
>> test with 2.6.23-pax. |
| 7 |
> |
| 8 |
|
| 9 |
More (of the same) output from 2.6.23-hardened: |
| 10 |
|
| 11 |
Oct 30 23:12:55 tux-mc.hslc.wisc.edu IPMI Watchdog: driver initialized |
| 12 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu Bad page state in process 'cactid' |
| 13 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu page:c14ccf60 flags:0x40000001 |
| 14 |
mapping:00000000 mapcount:0 count:0 |
| 15 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu Trying to fix it up, but a reboot |
| 16 |
is needed |
| 17 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu Backtrace: |
| 18 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu [<c044bbaf>] bad_page+0x63/0x92 |
| 19 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu [<c044c47c>] |
| 20 |
free_hot_cold_page+0x7c/0x178 |
| 21 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu [<c0455bed>] do_wp_page+0x22b/0x425 |
| 22 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu [<c06efe50>] do_nanosleep+0x5a/0x6e |
| 23 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu [<c04570da>] |
| 24 |
handle_mm_fault+0x2fd/0x330 |
| 25 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu [<c0414569>] do_page_fault+0x38d/0x86d |
| 26 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu [<c0402ba8>] restore_all+0x0/0x18 |
| 27 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu [<c041007b>] |
| 28 |
nmi_watchdog_tick+0x13/0x176 |
| 29 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu [<c04141dc>] do_page_fault+0x0/0x86d |
| 30 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu [<c06f0725>] error_code+0x75/0x80 |
| 31 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu [<c06f0000>] |
| 32 |
rt_mutex_slowlock+0xd1/0x144 |
| 33 |
Oct 30 23:15:10 tux-mc.hslc.wisc.edu ======================= |
| 34 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu Bad page state in process 'cactid' |
| 35 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu page:c13ea1c0 flags:0x40000001 |
| 36 |
mapping:00000000 mapcount:0 count:0 |
| 37 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu Trying to fix it up, but a reboot |
| 38 |
is needed |
| 39 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu Backtrace: |
| 40 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c044bbaf>] bad_page+0x63/0x92 |
| 41 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c044c47c>] |
| 42 |
free_hot_cold_page+0x7c/0x178 |
| 43 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c044cbe5>] __pagevec_free+0x14/0x1c |
| 44 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c044f40f>] release_pages+0x122/0x144 |
| 45 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c045e33e>] |
| 46 |
free_pages_and_swap_cache+0x51/0x75 |
| 47 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c04545bf>] zap_pte_range+0x1f4/0x28d |
| 48 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c0454705>] |
| 49 |
unmap_page_range+0xad/0x129 |
| 50 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c045485e>] unmap_vmas+0xdd/0x1ec |
| 51 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c045a391>] exit_mmap+0x72/0xf0 |
| 52 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c041b0f1>] mmput+0x33/0x91 |
| 53 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c046bd03>] exec_mmap+0x126/0x36c |
| 54 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c046c236>] de_thread+0x2ed/0x35e |
| 55 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c046c40f>] flush_old_exec+0x56/0x20c |
| 56 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c046bbcb>] kernel_read+0x50/0x62 |
| 57 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c049707f>] |
| 58 |
load_elf_binary+0x380/0xf42 |
| 59 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c0454b2c>] follow_page+0xd5/0x157 |
| 60 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c046c8c2>] |
| 61 |
search_binary_handler+0x9e/0x204 |
| 62 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c046cc77>] do_execve+0x24f/0x37e |
| 63 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c0401685>] sys_execve+0x2f/0x7a |
| 64 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu [<c0402b82>] syscall_call+0x7/0xb |
| 65 |
Oct 30 23:15:11 tux-mc.hslc.wisc.edu ======================= |
| 66 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu Bad page state in process 'cactid' |
| 67 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu page:c1504d00 flags:0x40000001 |
| 68 |
mapping:00000000 mapcount:0 count:0 |
| 69 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu Trying to fix it up, but a reboot |
| 70 |
is needed |
| 71 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu Backtrace: |
| 72 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu [<c044bbaf>] bad_page+0x63/0x92 |
| 73 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu [<c044c47c>] |
| 74 |
free_hot_cold_page+0x7c/0x178 |
| 75 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu [<c0455bed>] do_wp_page+0x22b/0x425 |
| 76 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu [<c043275f>] |
| 77 |
hrtimer_try_to_cancel+0x40/0x7e |
| 78 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu [<c04570da>] |
| 79 |
handle_mm_fault+0x2fd/0x330 |
| 80 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu [<c0414569>] do_page_fault+0x38d/0x86d |
| 81 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu [<c0432af0>] sys_nanosleep+0x54/0x5c |
| 82 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu [<c0402ba8>] restore_all+0x0/0x18 |
| 83 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu [<c04141dc>] do_page_fault+0x0/0x86d |
| 84 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu [<c06f0725>] error_code+0x75/0x80 |
| 85 |
Oct 30 23:15:15 tux-mc.hslc.wisc.edu [<c06f0000>] |
| 86 |
rt_mutex_slowlock+0xd1/0x144 |
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