Oct 10 02:05:26 uranus kernel: BUG: unable to handle kernel NULL pointer dereference at 0000000000000050 Oct 10 02:05:26 uranus kernel: IP: [] try_to_release_page+0x20/0x50 Oct 10 02:05:26 uranus kernel: PGD 9789c067 PUD d87c3067 PMD 0 Oct 10 02:05:26 uranus kernel: Oops: 0000 [#1] SMP Oct 10 02:05:26 uranus kernel: last sysfs file: /sys/devices/platform/it87.552/in8_input Oct 10 02:05:26 uranus kernel: CPU 1 Oct 10 02:05:26 uranus kernel: Modules linked in: radeon usbhid ttm drm_kms_helper Oct 10 02:05:26 uranus kernel: Oct 10 02:05:26 uranus kernel: Pid: 704, comm: kswapd0 Not tainted 2.6.34-xen-Gentoo-uranus-1-37 #11 GA-MA785GT-UD3H/GA-MA785GT-UD3H Oct 10 02:05:26 uranus kernel: RIP: e030:[] [] try_to_release_page+0x20/0x50 Oct 10 02:05:26 uranus kernel: RSP: e02b:ffff8800eb0b99d0 EFLAGS: 00010286 Oct 10 02:05:26 uranus kernel: RAX: 0000000000000000 RBX: ffff880003d09e80 RCX: ffff88005bcf6650 Oct 10 02:05:26 uranus kernel: RDX: 4000000000000009 RSI: 00000000000000d0 RDI: ffff880003d09e80 Oct 10 02:05:26 uranus kernel: RBP: ffff8800eb0b99d0 R08: 0000000000000024 R09: 0000000000000000 Oct 10 02:05:26 uranus kernel: R10: ffff8800015252c0 R11: 0000000000000001 R12: ffff880003d09ea8 Oct 10 02:05:26 uranus kernel: R13: ffff8800eb0b9da0 R14: ffff8800eb0b9c30 R15: 0000000000000001 Oct 10 02:05:26 uranus kernel: FS: 00007fa1858f5700(0000) GS:ffff880001cd3000(0000) knlGS:0000000000000000 Oct 10 02:05:26 uranus kernel: CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b Oct 10 02:05:26 uranus kernel: CR2: 0000000000000050 CR3: 00000000a6fd4000 CR4: 0000000000000660 Oct 10 02:05:26 uranus kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Oct 10 02:05:26 uranus kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Oct 10 02:05:26 uranus kernel: Process kswapd0 (pid: 704, threadinfo ffff8800eb0b8000, task ffff8800ebbbd890) Oct 10 02:05:26 uranus kernel: Stack: Oct 10 02:05:26 uranus kernel: ffff8800eb0b9ae0 ffffffff801953bd ffff8800eb0b99f0 ffff8800eb0b9a90 Oct 10 02:05:26 uranus kernel: <0> ffff88005bcf6650 ffffffff8018f5af 0000000000000017 0000000000000000 Oct 10 02:05:26 uranus kernel: <0> 0000000000000009 0000000000000001 ffff880003d1fee8 ffff880003c7cf30 Oct 10 02:05:26 uranus kernel: Call Trace: Oct 10 02:05:26 uranus kernel: [] shrink_page_list+0x46d/0x560 Oct 10 02:05:26 uranus kernel: [] ? free_pages+0x3f/0x50 Oct 10 02:05:26 uranus kernel: [] shrink_inactive_list+0x33f/0x7e0 Oct 10 02:05:26 uranus kernel: [] ? call_rcu+0x9/0x10 Oct 10 02:05:26 uranus kernel: [] ? d_free+0x3a/0x60 Oct 10 02:05:26 uranus kernel: [] ? determine_dirtyable_memory+0x15/0x30 Oct 10 02:05:26 uranus kernel: [] ? get_dirty_limits+0x22/0x2e0 Oct 10 02:05:26 uranus kernel: [] ? __shrink_dcache_sb+0x30b/0x380 Oct 10 02:05:26 uranus kernel: [] shrink_zone+0x26e/0x460 Oct 10 02:05:26 uranus kernel: [] ? shrink_slab+0x13a/0x170 Oct 10 02:05:26 uranus kernel: [] balance_pgdat+0x679/0x730 Oct 10 02:05:26 uranus kernel: [] ? isolate_pages_global+0x0/0x230 Oct 10 02:05:26 uranus kernel: [] kswapd+0xf9/0x210 Oct 10 02:05:26 uranus kernel: [] ? autoremove_wake_function+0x0/0x40 Oct 10 02:05:26 uranus kernel: [] ? kswapd+0x0/0x210 Oct 10 02:05:26 uranus kernel: [] kthread+0x8e/0xa0 Oct 10 02:05:26 uranus kernel: [] kernel_thread_helper+0x4/0x10 Oct 10 02:05:26 uranus kernel: [] ? kthread+0x0/0xa0 Oct 10 02:05:26 uranus kernel: [] ? kernel_thread_helper+0x0/0x10 Oct 10 02:05:26 uranus kernel: Code: ff ff eb db 0f 1f 80 00 00 00 00 55 48 8b 17 48 8b 4f 18 48 89 e5 f6 c2 01 74 39 31 c0 80 e6 20 75 14 48 85 c9 74 1c 48 8b 41 58 <48> 8b 40 50 48 85 c0 74 0f ff d0 c9 0f 1f 40 00 c3 0f 1f 80 00 Oct 10 02:05:26 uranus kernel: RIP [] try_to_release_page+0x20/0x50 Oct 10 02:05:26 uranus kernel: RSP Oct 10 02:05:26 uranus kernel: CR2: 0000000000000050 Oct 10 02:05:26 uranus kernel: ---[ end trace 1abae4e52b6f922c ]--- [...] Oct 10 02:20:27 uranus kernel: ------------[ cut here ]------------ Oct 10 02:20:27 uranus kernel: kernel BUG at arch/x86/mm/hypervisor.c:657! Oct 10 02:20:27 uranus kernel: invalid opcode: 0000 [#2] SMP Oct 10 02:20:27 uranus kernel: last sysfs file: /sys/devices/platform/it87.552/in8_input Oct 10 02:20:27 uranus kernel: CPU 2 Oct 10 02:20:27 uranus kernel: Modules linked in: radeon usbhid ttm drm_kms_helper Oct 10 02:20:27 uranus kernel: Oct 10 02:20:27 uranus kernel: Pid: 15982, comm: munin-graph Tainted: G D 2.6.34-xen-Gentoo-uranus-1-37 #11 GA-MA785GT-UD3H/GA-MA785GT-UD3H Oct 10 02:20:27 uranus kernel: RIP: e030:[] [] xen_pgd_pin+0x114/0x160 Oct 10 02:20:27 uranus kernel: RSP: e02b:ffff8800a5e03cc0 EFLAGS: 00010282 Oct 10 02:20:27 uranus kernel: RAX: 00000000ffffffea RBX: 0000000000000000 RCX: ffff880005b1f000 Oct 10 02:20:27 uranus kernel: RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff8800a5e03cc0 Oct 10 02:20:27 uranus kernel: RBP: ffff8800a5e03d00 R08: 0000000000000000 R09: 0000000000000002 Oct 10 02:20:27 uranus kernel: R10: 0000000000007ff0 R11: ffff88008e6dfff8 R12: ffff880002763000 Oct 10 02:20:27 uranus kernel: R13: 0000000000000000 R14: ffff88009ec62a80 R15: ffff88008c5e3e70 Oct 10 02:20:27 uranus kernel: FS: 00007fd5c4be6700(0000) GS:ffff880001ce5000(0000) knlGS:0000000000000000 Oct 10 02:20:27 uranus kernel: CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b Oct 10 02:20:27 uranus kernel: CR2: 0000000000f6ce50 CR3: 00000000a0ce3000 CR4: 0000000000000660 Oct 10 02:20:27 uranus kernel: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Oct 10 02:20:27 uranus kernel: DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Oct 10 02:20:27 uranus kernel: Process munin-graph (pid: 15982, threadinfo ffff8800a5e02000, task ffff8800a05600d0) Oct 10 02:20:27 uranus kernel: Stack: Oct 10 02:20:27 uranus kernel: ffff880000000003 0000000000027c7e 0000000000000800 ffff880000000003 Oct 10 02:20:27 uranus kernel: <0> 0000000000025b46 0000000000000000 ffff8800cbde1000 ffff880002763000 Oct 10 02:20:27 uranus kernel: <0> ffff8800a5e03d20 ffffffff80120f0b ffff88009724ed80 ffff880002763000 Oct 10 02:20:27 uranus kernel: Call Trace: Oct 10 02:20:27 uranus kernel: [] __pgd_pin+0x2b/0x60 Oct 10 02:20:27 uranus kernel: [] mm_pin+0x28/0x40 Oct 10 02:20:27 uranus kernel: [] arch_dup_mmap+0x46/0x60 Oct 10 02:20:27 uranus kernel: [] dup_mm+0x3ad/0x4c0 Oct 10 02:20:27 uranus kernel: [] copy_process+0xb4d/0xf60 Oct 10 02:20:27 uranus kernel: [] do_fork+0x8f/0x3e0 Oct 10 02:20:27 uranus kernel: [] ? do_page_fault+0x17c/0x320 Oct 10 02:20:27 uranus kernel: [] sys_clone+0x23/0x30 Oct 10 02:20:27 uranus kernel: [] stub_clone+0x13/0x20 Oct 10 02:20:27 uranus kernel: [] ? system_call_fastpath+0x16/0x1b Oct 10 02:20:27 uranus kernel: Code: 00 7c 00 00 84 c0 75 2b 48 8d 7d c0 be 02 00 00 00 31 d2 41 ba f0 7f 00 00 e8 59 e1 fd ff 85 c0 78 09 48 83 c4 30 5b 41 5c c9 c3 <0f> 0b eb fe 0f 0b eb fe 48 8d 7d c0 b9 f0 7f 00 00 31 d2 be 02 Oct 10 02:20:27 uranus kernel: RIP [] xen_pgd_pin+0x114/0x160 Oct 10 02:20:27 uranus kernel: RSP Oct 10 02:20:27 uranus kernel: ---[ end trace 1abae4e52b6f922d ]---