Bug#501465: linux-image-2.6.26-1-xen-amd64: Eeek! page_mapcount(page) went negative! (-1), kernel BUG at mm/rmap.c:669! - Debian

This is a discussion on Bug#501465: linux-image-2.6.26-1-xen-amd64: Eeek! page_mapcount(page) went negative! (-1), kernel BUG at mm/rmap.c:669! - Debian ; Package: linux-image-2.6.26-1-xen-amd64 Version: 2.6.26-7 Severity: normal Hi folks, Yesterday I converted one of our mail filtering machines (XEN domU) to Lenny and restarted it with the new 2.6.26-1-xen-amd64 kernel from unstable. This afternoon the system died, producing some famous last ...

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Thread: Bug#501465: linux-image-2.6.26-1-xen-amd64: Eeek! page_mapcount(page) went negative! (-1), kernel BUG at mm/rmap.c:669!

  1. Bug#501465: linux-image-2.6.26-1-xen-amd64: Eeek! page_mapcount(page) went negative! (-1), kernel BUG at mm/rmap.c:669!

    Package: linux-image-2.6.26-1-xen-amd64
    Version: 2.6.26-7
    Severity: normal

    Hi folks,

    Yesterday I converted one of our mail filtering machines (XEN domU) to Lenny and
    restarted it with the new 2.6.26-1-xen-amd64 kernel from unstable. This
    afternoon the system died, producing some famous last words at the console and
    in /var/log/syslog [1].

    The dom0 system is based on Etch, running xen-linux-system-2.6.18-xen-3.1-2-amd64
    version 2.6.18.dfsg.1-22etch2+xen.1 with xen-hypervisor-3.2-1-amd64 and
    xen-utils-3.2-1 3.2.1-2 from unstable, which I backported to Etch [2].

    Greetings,
    Hans van Kranenburg

    [1] http://packages.mendix.com/debian/pool/main/x/xen-3/
    [2] Messages from syslog, without hostname/timestamp:
    kernel: [54485.642631] Eeek! page_mapcount(page) went negative! (-1)
    kernel: [54485.642643] page pfn = 3
    kernel: [54485.642646] page->flags = 0
    kernel: [54485.642649] page->count = 1
    kernel: [54485.642652] page->mapping = 0000000000000000
    kernel: [54485.642663] vma->vm_ops = 0x0
    kernel: [54485.642681] ------------[ cut here ]------------
    kernel: [54485.642684] kernel BUG at mm/rmap.c:669!
    kernel: [54485.642687] invalid opcode: 0000 [1] SMP
    kernel: [54485.642692] CPU 0
    kernel: [54485.642696] Modules linked in: ip6table_filter xt_multiport ip6t_LOG ip6_tables xt_tcpudp iptable_nat nf_nat ipt_REJECT xt_owner xt_state
    xt_limit ipt_LOG iptable_mangle iptable_filter nf_conntrack_ipv4 nf_conntrack ip_tables x_tables ipv6 evdev reiserfs dm_mirror dm_log dm_snapshot
    dm_mod raid1 md_mod thermal_sys
    kernel: [54485.642733] Pid: 6449, comm: clamd Not tainted 2.6.26-1-xen-amd64 #1
    kernel: [54485.642736] RIP: e030:[] [] page_remove_rmap+0xfb/0x117
    kernel: [54485.642747] RSP: e02b:ffff88001e93fdf8 EFLAGS: 00010246
    kernel: [54485.642750] RAX: 0000000000000000 RBX: ffff8800019650a8 RCX: ffffffffff5f7000
    kernel: [54485.642754] RDX: ffffffffff5f7000 RSI: 0000000000000001 RDI: ffffffff80501fc0
    kernel: [54485.642758] RBP: ffff88001e01e7c8 R08: ffffffff80501fb0 R09: ffff88001e01e701
    kernel: [54485.642762] R10: 0000000000000024 R11: 000000000000add8 R12: ffff8800019650a8
    kernel: [54485.642765] R13: 0000000000000008 R14: ffff88001e00b7c0 R15: ffff88001e01e7c8
    kernel: [54485.642772] FS: 0000000000000000(0063) GS:ffffffff80539000(0000) knlGS:0000000000000000
    kernel: [54485.642776] CS: e033 DS: 0000 ES: 0000
    kernel: [54485.642779] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    kernel: [54485.642784] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
    kernel: [54485.642788] Process clamd (pid: 6449, threadinfo ffff88001e93e000, task ffff880001183410)
    kernel: [54485.642791] Stack: 0000000007c8b000 800000025186c067 ffff880001c8f828 ffffffff80272468
    kernel: [54485.642799] ffff88001c4ee440 ffff88001e4501f0 ffff8800007b3458 ffff88000197ff38
    kernel: [54485.642806] ffff8800007b3458 ffff88000197ff38 ffff8800007b3458 0000000000000006
    kernel: [54485.642812] Call Trace:
    kernel: [54485.642819] [] ? do_wp_page+0x6cf/0x789
    kernel: [54485.642827] [] ? handle_mm_fault+0xbcb/0xc49
    kernel: [54485.642835] [] ? do_page_fault+0xb73/0xf50
    kernel: [54485.642843] [] ? error_exit+0x0/0x69
    kernel: [54485.642851]
    kernel: [54485.642852]
    kernel: [54485.642854] Code: 80 e8 3c 0c fd ff 48 8b 85 90 00 00 00 48 85 c0 74 19 48 8b 40 20 48 85 c0 74 10 48 8b 70 58 48 c7 c7 4e 52 4b 80 e8 17 0c
    fd ff <0f> 0b eb fe 8b 77 18 41 58 5b 5d 83 e6 01 f7 de 83 c6 04 e9 6c
    kernel: [54485.642908] RIP [] page_remove_rmap+0xfb/0x117
    kernel: [54485.642913] RSP
    kernel: [54485.642923] ---[ end trace 214fecd260858cd4 ]---
    kernel: [54939.763806] Bad page state in process 'sshd'
    kernel: [54939.763806] page:ffff8800019652a0 flags:0x0000000000040000 mapping:0000000000000000 mapcount:0 count:0
    kernel: [54939.763806] Trying to fix it up, but a reboot is needed
    kernel: [54939.763806] Backtrace:
    kernel: [54939.763806] Pid: 6471, comm: sshd Tainted: G D 2.6.26-1-xen-amd64 #1
    kernel: [54939.763806]
    kernel: [54939.763806] Call Trace:
    kernel: [54939.763806] [] bad_page+0x6b/0x95
    kernel: [54939.763806] [] free_hot_cold_page+0x89/0x1ba
    kernel: [54939.763806] [] __pagevec_free+0x21/0x2e
    kernel: [54939.763822] [] release_pages+0x160/0x172
    kernel: [54939.763841] [] free_pages_and_swap_cache+0x72/0x8e
    kernel: [54939.763861] [] exit_mmap+0xc8/0xf7
    kernel: [54939.763881] [] mmput+0x2c/0xc0
    kernel: [54939.763905] [] flush_old_exec+0x6df/0xa45
    kernel: [54939.763918] [] vfs_read+0x11e/0x152
    kernel: [54939.763926] [] load_elf_binary+0x341/0x16c4
    kernel: [54939.763933] [] get_arg_page+0x46/0xa5
    kernel: [54939.763940] [] __strnlen_user+0xe/0x27
    kernel: [54939.763946] [] copy_strings+0x1b8/0x1c9
    kernel: [54939.763952] [] search_binary_handler+0xb0/0x1e5
    kernel: [54939.763958] [] do_execve+0x168/0x215
    kernel: [54939.763963] [] sys_execve+0x35/0x4c
    kernel: [54939.763969] [] stub_execve+0x40/0x70
    kernel: [54939.763976]
    kernel: [54939.763981] Bad page state in process 'sshd'
    kernel: [54939.763982] page:ffff880001965268 flags:0x0000000000040000 mapping:0000000000000000 mapcount:0 count:0
    kernel: [54939.763987] Trying to fix it up, but a reboot is needed
    kernel: [54939.763989] Backtrace:
    kernel: [54939.764000] Pid: 6471, comm: sshd Tainted: G B D 2.6.26-1-xen-amd64 #1
    kernel: [54939.764002]
    kernel: [54939.764003] Call Trace:
    kernel: [54939.764006] [] bad_page+0x6b/0x95
    kernel: [54939.764010] [] free_hot_cold_page+0x89/0x1ba
    kernel: [54939.764014] [] __pagevec_free+0x21/0x2e
    kernel: [54939.764020] [] release_pages+0x160/0x172
    kernel: [54939.764028] [] free_pages_and_swap_cache+0x72/0x8e
    kernel: [54939.764035] [] exit_mmap+0xc8/0xf7
    kernel: [54939.764040] [] mmput+0x2c/0xc0
    kernel: [54939.764045] [] flush_old_exec+0x6df/0xa45
    kernel: [54939.764051] [] vfs_read+0x11e/0x152
    kernel: [54939.764057] [] load_elf_binary+0x341/0x16c4
    kernel: [54939.764063] [] get_arg_page+0x46/0xa5
    kernel: [54939.764067] [] __strnlen_user+0xe/0x27
    kernel: [54939.764071] [] copy_strings+0x1b8/0x1c9
    kernel: [54939.764077] [] search_binary_handler+0xb0/0x1e5
    kernel: [54939.764082] [] do_execve+0x168/0x215
    kernel: [54939.764088] [] sys_execve+0x35/0x4c
    kernel: [54939.764094] [] stub_execve+0x40/0x70
    kernel: [54939.764101]
    kernel: [54995.809577] Bad page state in process 'sshd'
    kernel: [54995.809579] page:ffff8800019652a0 flags:0x0000000000040000 mapping:0000000000000000 mapcount:0 count:0
    kernel: [54995.809607] Trying to fix it up, but a reboot is needed
    kernel: [54995.809609] Backtrace:
    kernel: [54995.809626] Pid: 6475, comm: sshd Tainted: G B D 2.6.26-1-xen-amd64 #1
    kernel: [54995.809639]
    kernel: [54995.809640] Call Trace:
    kernel: [54995.810093] [] bad_page+0x6b/0x95
    kernel: [54995.810108] [] free_hot_cold_page+0x89/0x1ba
    kernel: [54995.810123] [] __pagevec_free+0x21/0x2e
    kernel: [54995.810138] [] release_pages+0x160/0x172
    kernel: [54995.810157] [] free_pages_and_swap_cache+0x72/0x8e
    kernel: [54995.810172] [] exit_mmap+0xc8/0xf7
    kernel: [54995.810187] [] mmput+0x2c/0xc0
    kernel: [54995.810203] [] flush_old_exec+0x6df/0xa45
    kernel: [54995.810218] [] vfs_read+0x11e/0x152
    kernel: [54995.810235] [] load_elf_binary+0x341/0x16c4
    kernel: [54995.810251] [] get_arg_page+0x46/0xa5
    kernel: [54995.810258] [] __strnlen_user+0xe/0x27
    kernel: [54995.810263] [] copy_strings+0x1b8/0x1c9
    kernel: [54995.810270] [] search_binary_handler+0xb0/0x1e5
    kernel: [54995.810276] [] do_execve+0x168/0x215
    kernel: [54995.810282] [] sys_execve+0x35/0x4c
    kernel: [54995.810288] [] stub_execve+0x40/0x70
    kernel: [54995.810295]
    kernel: [54995.810300] Bad page state in process 'sshd'
    kernel: [54995.810302] page:ffff880001965268 flags:0x0000000000040000 mapping:0000000000000000 mapcount:0 count:0
    kernel: [54995.810306] Trying to fix it up, but a reboot is needed
    kernel: [54995.810308] Backtrace:
    kernel: [54995.810312] Pid: 6475, comm: sshd Tainted: G B D 2.6.26-1-xen-amd64 #1
    kernel: [54995.810316]
    kernel: [54995.810317] Call Trace:
    kernel: [54995.810321] [] bad_page+0x6b/0x95
    kernel: [54995.810326] [] free_hot_cold_page+0x89/0x1ba
    kernel: [54995.810331] [] __pagevec_free+0x21/0x2e
    kernel: [54995.810336] [] release_pages+0x160/0x172
    kernel: [54995.810345] [] free_pages_and_swap_cache+0x72/0x8e
    kernel: [54995.810351] [] exit_mmap+0xc8/0xf7
    kernel: [54995.810356] [] mmput+0x2c/0xc0
    kernel: [54995.810361] [] flush_old_exec+0x6df/0xa45
    kernel: [54995.810367] [] vfs_read+0x11e/0x152
    kernel: [54995.810373] [] load_elf_binary+0x341/0x16c4
    kernel: [54995.810380] [] get_arg_page+0x46/0xa5
    kernel: [54995.810385] [] __strnlen_user+0xe/0x27
    kernel: [54995.810390] [] copy_strings+0x1b8/0x1c9
    kernel: [54995.810397] [] search_binary_handler+0xb0/0x1e5
    kernel: [54995.810402] [] do_execve+0x168/0x215
    kernel: [54995.810408] [] sys_execve+0x35/0x4c
    kernel: [54995.810413] [] stub_execve+0x40/0x70
    kernel: [54995.810420]

    .... dead, had to do xm destroy on the dom0 host ...

    -- System Information:
    Debian Release: lenny/sid
    APT prefers testing
    APT policy: (900, 'testing'), (800, 'unstable')
    Architecture: amd64 (x86_64)

    Kernel: Linux 2.6.26-1-xen-amd64 (SMP w/2 CPU cores)
    Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
    Shell: /bin/sh linked to /bin/bash



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  2. Bug#501465: marked as done (linux-image-2.6.26-1-xen-amd64: Eeek! page_mapcount(page) went negative! (-1), kernel BUG at mm/rmap.c:669!)


    Your message dated Sat, 08 Nov 2008 17:17:38 +0000
    with message-id
    and subject line Bug#503821: fixed in linux-2.6 2.6.26-10
    has caused the Debian Bug report #503821,
    regarding linux-image-2.6.26-1-xen-amd64: Eeek! page_mapcount(page) went negative! (-1), kernel BUG at mm/rmap.c:669!
    to be marked as done.

    This means that you claim that the problem has been dealt with.
    If this is not the case it is now your responsibility to reopen the
    Bug report if necessary, and/or fix the problem forthwith.

    (NB: If you are a system administrator and have no idea what this
    message is talking about, this may indicate a serious mail system
    misconfiguration somewhere. Please contact owner@bugs.debian.org
    immediately.)


    --
    503821: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=503821
    Debian Bug Tracking System
    Contact owner@bugs.debian.org with problems


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