The kernel is operable but only for a short period. Sessions are no longer reliable. Processes can stop in the middle of their activity. That happened to an apt-get, a SSH session and other processes. I've got another trace during a more recent boot. Here it is:
[2780832.747914] ------------[ cut here ]------------ [2780832.747928] kernel BUG at /build/buildd/linux-source-2.6.22-2.6.22/debian/build/custom-source-xen/arch/i386/mm/pgtable-xen.c:588! [2780832.747934] invalid opcode: 0000 [#1] [2780832.747937] SMP [2780832.747941] Modules linked in: ipv6 evdev 8250 serial_core ext3 jbd mbcache capability commoncap [2780832.747959] CPU: 0 [2780832.747960] EIP: 0061:[<c01147e8>] Not tainted VLI [2780832.747961] EFLAGS: 00010282 (2.6.22-14-xen #1) [2780832.747972] EIP is at make_lowmem_page_writable+0x118/0x130 [2780832.747976] eax: ffffffea ebx: 40223000 ecx: c180111a edx: c1801118 [2780832.747981] esi: 00000000 edi: 80000002 ebp: 40223000 esp: e68fbf1c [2780832.747985] ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0069 [2780832.747989] Process sshd (pid: 17767, ti=e68fa000 task=c0b9a000 task.ti=e68fa000) [2780832.747993] Stack: 40223000 80223001 40223000 00000004 c011533a 00000001 00000001 c0115423 [2780832.748007] c1014000 dfb93001 00000001 e68698c0 c0b9a000 00000001 e68fa000 c011f892 [2780832.748020] e6869a80 c0125081 00000008 c017ba5b 00000000 00000000 e8568990 00000001 [2780832.748033] Call Trace: [2780832.748043] [<c011533a>] pmd_cache_free+0x1a/0x50 [2780832.748049] [<c0115423>] pgd_free+0xb3/0x120 [2780832.748054] [<c011f892>] __mmdrop+0x12/0x30 [2780832.748060] [<c0125081>] do_exit+0x121/0x850 [2780832.748065] [<c017ba5b>] __fput+0x12b/0x1a0 [2780832.748071] [<c01257d6>] do_group_exit+0x26/0x90 [2780832.748076] [<c01055a2>] syscall_call+0x7/0xb [2780832.748082] [<c0300000>] wait_for_completion_interruptible+0x130/0x150 [2780832.748089] ======================= [2780832.748092] Code: 43 c0 d3 e8 85 c0 75 32 a1 a0 ba 43 c0 8b 14 90 eb c5 8b 0d a4 ba 43 c0 d3 e8 85 c0 75 11 a1 a0 ba 43 c0 8b 14 90 e9 2f ff ff ff <0f> 0b eb fe 8b 15 00 66 48 c0 e9 20 ff ff ff 8b 15 00 66 48 c0 [2780832.748159] EIP: [<c01147e8>] make_lowmem_page_writable+0x118/0x130 SS:ESP 0069:e68fbf1c [2780832.748181] Fixing recursive fault but reboot is needed! [3051430.641850] BUG: unable to handle kernel paging request at virtual address 17531000 [3051430.641865] printing eip: [3051430.641869] c01149c3 [3051430.641876] 24352000 -> *pde = 00000001:c63ca027 [3051430.641888] 23d56000 -> *pme = 00000000:00000000 [3051430.641898] Oops: 0000 [#2] [3051430.641900] SMP [3051430.641911] Modules linked in: ipv6 evdev 8250 serial_core ext3 jbd mbcache capability commoncap [3051430.641932] CPU: 0 [3051430.641932] EIP: 0061:[<c01149c3>] Not tainted VLI [3051430.641933] EFLAGS: 00010212 (2.6.22-14-xen #1) [3051430.641945] EIP is at _pin_lock+0x93/0x190 [3051430.641948] eax: 17532008 ebx: 00000001 ecx: 57531000 edx: 00157531 [3051430.641953] esi: 57531001 edi: 00000001 ebp: 17531008 esp: e3d5fedc [3051430.641957] ds: 007b es: 007b fs: 00d8 gs: 0033 ss: 0069 [3051430.641961] Process bzip2 (pid: 17564, ti=e3d5e000 task=ea464a60 task.ti=e3d5e000) [3051430.641965] Stack: 17532008 00000001 e335f540 e438e008 00000001 e335f540 e43b5b58 00000000 [3051430.641979] e944a530 c0114b1a 01200011 c01209cf e43b501c 00000000 e3d5ff8c e335fab4 [3051430.641992] e335f574 e944a5f0 e3d5ffb8 bfb4ef34 00000000 e335f700 e944a530 e335f540 [3051430.642005] Call Trace: [3051430.642010] [<c0114b1a>] mm_pin+0x1a/0x30 [3051430.642015] [<c01209cf>] copy_process+0x105f/0x1200 [3051430.642023] [<c0120df6>] do_fork+0x76/0x230 [3051430.642028] [<c0103206>] sys_clone+0x36/0x40 [3051430.642033] [<c01055a2>] syscall_call+0x7/0xb [3051430.642039] ======================= [3051430.642041] Code: 89 ce 09 c6 89 f0 25 00 f0 ff ff 8d a8 08 00 00 c0 2d f8 ef ff 3f 89 04 24 eb 10 b8 01 00 00 00 86 42 0c 83 c5 08 3b 2c 24 74 71 <8b> 75 f8 8b 7d fc 85 f6 74 ee 89 fa 31 c0 09 f2 74 3f 89 fa 89 [3051430.642108] EIP: [<c01149c3>] _pin_lock+0x93/0x190 SS:ESP 0069:e3d5fedc [3051465.872262] ------------[ cut here ]------------ [3051465.872275] kernel BUG at /build/buildd/linux-source-2.6.22-2.6.22/debian/build/custom-source-xen/arch/i386/mm/pgtable-xen.c:588! [3051465.872282] invalid opcode: 0000 [#3] [3051465.872285] SMP [3051465.872290] Modules linked in: ipv6 evdev 8250 serial_core ext3 jbd mbcache capability commoncap [3051465.872307] CPU: 0 [3051465.872307] EIP: 0061:[<c01147e8>] Not tainted VLI [3051465.872308] EFLAGS: 00010282 (2.6.22-14-xen #1) [3051465.872321] EIP is at make_lowmem_page_writable+0x118/0x130 [3051465.872324] eax: ffffffea ebx: 8cad7000 ecx: c18656ba edx: c18656b8 [3051465.872329] esi: 00000000 edi: 80000002 ebp: 8cad7000 esp: e1603f1c [3051465.872333] ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0069 [3051465.872337] Process bash.postinst (pid: 17668, ti=e1602000 task=c0b06000 task.ti=e1602000) [3051465.872341] Stack: 8cad7000 ccad7001 8cad7000 00000004 c011533a 00000000 00000001 c0115423 [3051465.872355] e4377000 8c47b001 00000001 e3d00700 c0b06000 00000001 e1602000 c011f892 [3051465.872369] c12e3380 c0125081 e13a5f0c 00000001 e2248440 e13a5df0 00000000 00000002 [3051465.872382] Call Trace: [3051465.872390] [<c011533a>] pmd_cache_free+0x1a/0x50 [3051465.872417] [<c0115423>] pgd_free+0xb3/0x120 [3051465.872436] [<c011f892>] __mmdrop+0x12/0x30 [3051465.872441] [<c0125081>] do_exit+0x121/0x850 [3051465.872447] [<c012c41b>] recalc_sigpending+0xb/0x20 [3051465.872453] [<c01257d6>] do_group_exit+0x26/0x90 [3051465.872459] [<c01055a2>] syscall_call+0x7/0xb [3051465.872464] [<c0300000>] wait_for_completion_interruptible+0x130/0x150 [3051465.872471] ======================= [3051465.872474] Code: 43 c0 d3 e8 85 c0 75 32 a1 a0 ba 43 c0 8b 14 90 eb c5 8b 0d a4 ba 43 c0 d3 e8 85 c0 75 11 a1 a0 ba 43 c0 8b 14 90 e9 2f ff ff ff <0f> 0b eb fe 8b 15 00 66 48 c0 e9 20 ff ff ff 8b 15 00 66 48 c0 [3051465.872542] EIP: [<c01147e8>] make_lowmem_page_writable+0x118/0x130 SS:ESP 0069:e1603f1c [3051465.872561] Fixing recursive fault but reboot is needed! [3100918.654638] ------------[ cut here ]------------ [3100918.654652] kernel BUG at /build/buildd/linux-source-2.6.22-2.6.22/debian/build/custom-source-xen/arch/i386/mm/pgtable-xen.c:588! [3100918.654659] invalid opcode: 0000 [#4] [3100918.654662] SMP [3100918.654667] Modules linked in: ipv6 evdev 8250 serial_core ext3 jbd mbcache capability commoncap [3100918.654688] CPU: 0 [3100918.654689] EIP: 0061:[<c01147e8>] Not tainted VLI [3100918.654690] EFLAGS: 00010282 (2.6.22-14-xen #1) [3100918.654702] EIP is at make_lowmem_page_writable+0x118/0x130 [3100918.654706] eax: ffffffea ebx: 14391000 ecx: ffffffff edx: 00000000 [3100918.654710] esi: 00000000 edi: 80000002 ebp: 14391000 esp: e0e3df1c [3100918.654715] ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0069 [3100918.654719] Process sshd (pid: 21963, ti=e0e3c000 task=c0b9aa60 task.ti=e0e3c000) [3100918.654723] Stack: 14391000 54391001 14391000 00000004 c011533a 00000001 00000000 c0115423 [3100918.654737] e43d4000 a9012001 00000000 e3d00a80 c0b9aa60 00000001 e0e3c000 c011f892 [3100918.654751] e3d00c40 c0125081 00008580 c03e1980 c0106e20 00000000 e39f1d48 00000001 [3100918.654765] Call Trace: [3100918.654769] [<c011533a>] pmd_cache_free+0x1a/0x50 [3100918.654775] [<c0115423>] pgd_free+0xb3/0x120 [3100918.654781] [<c011f892>] __mmdrop+0x12/0x30 [3100918.654786] [<c0125081>] do_exit+0x121/0x850 [3100918.654792] [<c0106e20>] do_IRQ+0x40/0x70 [3100918.654798] [<c0259946>] evtchn_do_upcall+0xb6/0xf0 [3100918.654805] [<c01257d6>] do_group_exit+0x26/0x90 [3100918.654810] [<c01055a2>] syscall_call+0x7/0xb [3100918.654815] [<c0300000>] wait_for_completion_interruptible+0x130/0x150 [3100918.654823] ======================= [3100918.654825] Code: 43 c0 d3 e8 85 c0 75 32 a1 a0 ba 43 c0 8b 14 90 eb c5 8b 0d a4 ba 43 c0 d3 e8 85 c0 75 11 a1 a0 ba 43 c0 8b 14 90 e9 2f ff ff ff <0f> 0b eb fe 8b 15 00 66 48 c0 e9 20 ff ff ff 8b 15 00 66 48 c0 [3100918.654895] EIP: [<c01147e8>] make_lowmem_page_writable+0x118/0x130 SS:ESP 0069:e0e3df1c [3100918.654908] Fixing recursive fault but reboot is needed! The domU is configured by this file: name = "hostname" hostname = "hostname" uuid = "6308a6fd-a121-6060-e9b4-fee2235e84c6" maxmem = 2048 memory = 2048 vcpus = 2 builder = "linux" kernel = "/boot/guests/ubuntu-vmlinuz-2.6.22-14-xen" ramdisk = "/boot/guests/ubuntu-initrd.img-2.6.22-14-xen" root = "/dev/hda1 ro" extra = "root=/dev/hda1 ro nosplash initrd=/boot/initrd.img-2.6.22-14-xen xencons=tty" ip="XXX.XXX.XXX.XXX" netmask="255.255.255.128" gateway="XXX.XXX.XXX.XXX" boot = "c" pae = 0 acpi = 1 apic = 0 on_poweroff = "destroy" on_reboot = "restart" on_crash = "restart" device_model = "/usr/lib64/xen/bin/qemu-dm" sdl = 0 vnc = 0 vncunused = 0 vncdisplay = "-5900" disk = [ "file:/srv/serviziweb.ext3,hda1,w", "phy:/dev/mapper/VGData-serviziweb.var.www,hda2,w", "phy:/dev/mappe r/VGData-serviziweb.var.lib,hda3,w" ] vif = [ "mac=00:16:3e:54:61:9a,bridge=xenbr0" ] serial = "pty" I'm currently trying to run it with ACPI turned off. I'll report if that makes any differences. -- kernel bug at pgtable-xen.c:588 https://bugs.launchpad.net/bugs/231101 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
