Hi,
I see same messages in dmesg, debian testing, see attached file.
--
Jamil Djadala
[ 3336.437544] BUG: Bad page map in process /usr/share/muni
pte:8001d5a44067 pmd:186506067
[ 3336.437548] page:ea00066bbee0 count:3 mapcount:-128
mapping:8801c3dcb708 index:0x0
[ 3336.437550] page flags:
0x200087c(referenced|uptodate|dirty|lru|active|private)
[ 3336.437555] addr:7fb3a4f03000 vm_flags:080100fb anon_vma:
(null) mapping:8801c3dcb708 index:0
[ 3336.437560] vma-vm_ops-fault: filemap_fault+0x0/0x33e
[ 3336.437587] vma-vm_file-f_op-mmap: btrfs_file_mmap+0x0/0x45 [btrfs]
[ 3336.437590] Pid: 19833, comm: /usr/share/muni Tainted: P O
3.2.0-4-amd64 #1 Debian 3.2.41-2
[ 3336.437591] Call Trace:
[ 3336.437596] [810ce1f1] ? print_bad_pte+0x1a5/0x1bd
[ 3336.437598] [810cde51] ? pte_pfn+0x5/0xe
[ 3336.437601] [810cfe58] ? unmap_vmas+0x4d5/0x6ca
[ 3336.437604] [810d3e18] ? unmap_region+0x9f/0xf1
[ 3336.437606] [810d4ee8] ? do_munmap+0x292/0x2f3
[ 3336.437608] [810d5077] ? sys_munmap+0x3c/0x52
[ 3336.437612] [81352952] ? system_call_fastpath+0x16/0x1b
[ 3350.904806] BUG: Bad page map in process munin-graph pte:8001d5a44025
pmd:186f85067
[ 3350.904810] page:ea00066bbee0 count:3 mapcount:-128
mapping:8801c3dcb708 index:0x0
[ 3350.904812] page flags:
0x200087c(referenced|uptodate|dirty|lru|active|private)
[ 3350.904817] addr:7f7e64bb2000 vm_flags:08210071 anon_vma:
(null) mapping:8801c3dcb708 index:0
[ 3350.904822] vma-vm_ops-fault: filemap_fault+0x0/0x33e
[ 3350.904849] vma-vm_file-f_op-mmap: btrfs_file_mmap+0x0/0x45 [btrfs]
[ 3350.904852] Pid: 20596, comm: munin-graph Tainted: PB O
3.2.0-4-amd64 #1 Debian 3.2.41-2
[ 3350.904854] Call Trace:
[ 3350.904858] [810ce1f1] ? print_bad_pte+0x1a5/0x1bd
[ 3350.904861] [810cde51] ? pte_pfn+0x5/0xe
[ 3350.904863] [810cfe58] ? unmap_vmas+0x4d5/0x6ca
[ 3350.904866] [810d3e18] ? unmap_region+0x9f/0xf1
[ 3350.904869] [810bd1b9] ? force_page_cache_readahead+0x5f/0x83
[ 3350.904871] [810d4ee8] ? do_munmap+0x292/0x2f3
[ 3350.904873] [810d5077] ? sys_munmap+0x3c/0x52
[ 3350.904877] [81352952] ? system_call_fastpath+0x16/0x1b
[ 3350.908725] BUG: Bad page map in process munin-graph pte:8001d5a44025
pmd:186f85067
[ 3350.908727] page:ea00066bbee0 count:3 mapcount:-128
mapping:8801c3dcb708 index:0x0
[ 3350.908729] page flags:
0x200087c(referenced|uptodate|dirty|lru|active|private)
[ 3350.908732] addr:7f7e64bb2000 vm_flags:08210071 anon_vma:
(null) mapping:8801c3dcb708 index:0
[ 3350.908737] vma-vm_ops-fault: filemap_fault+0x0/0x33e
[ 3350.908752] vma-vm_file-f_op-mmap: btrfs_file_mmap+0x0/0x45 [btrfs]
[ 3350.908754] Pid: 20596, comm: munin-graph Tainted: PB O
3.2.0-4-amd64 #1 Debian 3.2.41-2
[ 3350.908755] Call Trace:
[ 3350.908758] [810ce1f1] ? print_bad_pte+0x1a5/0x1bd
[ 3350.908760] [810cde51] ? pte_pfn+0x5/0xe
[ 3350.908762] [810cfe58] ? unmap_vmas+0x4d5/0x6ca
[ 3350.908766] [810d3e18] ? unmap_region+0x9f/0xf1
[ 3350.908769] [810bd1b9] ? force_page_cache_readahead+0x5f/0x83
[ 3350.908773] [810d4ee8] ? do_munmap+0x292/0x2f3
[ 3350.908776] [810d5077] ? sys_munmap+0x3c/0x52
[ 3350.908780] [81352952] ? system_call_fastpath+0x16/0x1b
[ 3350.908798] BUG: Bad page map in process munin-graph pte:8001d5a44025
pmd:186f85067
[ 3350.908801] page:ea00066bbee0 count:3 mapcount:-128
mapping:8801c3dcb708 index:0x0
[ 3350.908804] page flags:
0x200087c(referenced|uptodate|dirty|lru|active|private)
[ 3350.908808] addr:7f7e64bb2000 vm_flags:08210071 anon_vma:
(null) mapping:8801c3dcb708 index:0
[ 3350.908812] vma-vm_ops-fault: filemap_fault+0x0/0x33e
[ 3350.908823] vma-vm_file-f_op-mmap: btrfs_file_mmap+0x0/0x45 [btrfs]
[ 3350.908825] Pid: 20596, comm: munin-graph Tainted: PB O
3.2.0-4-amd64 #1 Debian 3.2.41-2
[ 3350.908826] Call Trace:
[ 3350.908828] [810ce1f1] ? print_bad_pte+0x1a5/0x1bd
[ 3350.908830] [810cde51] ? pte_pfn+0x5/0xe
[ 3350.908831] [810cfe58] ? unmap_vmas+0x4d5/0x6ca
[ 3350.908835] [810d3e18] ? unmap_region+0x9f/0xf1
[ 3350.908838] [810bd1b9] ? force_page_cache_readahead+0x5f/0x83
[ 3350.908841] [810d4ee8] ? do_munmap+0x292/0x2f3
[ 3350.908844] [810d5077] ? sys_munmap+0x3c/0x52
[ 3350.908848] [81352952] ? system_call_fastpath+0x16/0x1b
[ 3350.908866] BUG: Bad page map in process munin-graph pte:8001d5a44025
pmd:186f85067
[ 3350.908868] page:ea00066bbee0 count:3 mapcount:-128
mapping:8801c3dcb708 index:0x0
[ 3350.908869] page flags:
0x200087c(referenced|uptodate|dirty|lru|active|private)
[ 3350.908872] addr:7f7e64bb2000 vm_flags:08210071 anon_vma:
(null) mapping:8801c3dcb708