최근에 홈 서버를 Ubuntu 10.04에서 12.04.1로 업그레이드했습니다. linux-image-server 커널 x86_64 arch를 실행합니다.
델 루지 데몬, apache2, IP 마스커레이딩 기능이있는 iptables 방화벽, DHCP 서버, 영역 파일이 자동으로 업데이트 된 영역 이름이있는 바인드 DNS 서버 (sshd, nfs 서버) 다른 것들. 이 기계는 내 라우터입니다. 인터넷과 로컬 네트워크 사이에 있습니다.
업그레이드 이후 간헐적으로 실패했습니다. 부팅 후 잠시 동안 문제가 해결되지 않으면 Wi-Fi에서 네트워크 연결이 갑자기 끊어집니다. 네트워크 케이블을 연결하면 DHCP 서버에서 IP 주소를 얻을 수 없습니다. 고정 IP 주소를 설정하면 인터넷에 계속 액세스 할 수 있습니다. 이렇게하면 dhclient -v eth0클라이언트가 IP 임대를 갱신하려고 할 때 알 수없는 DHCP 서버 인 것처럼 보입니다 (실제로 실행 하고 dhcpdiscover 소리에 응답하지 않습니다). 그러나 정적 IP로 유선으로 인터넷에 연결할 수 있으므로 iptables는 여전히 잘 작동합니다.
따라서 SSH를 통해 컴퓨터에 로그인하려고 시도하지만 중단 된 것 같습니다. ssh verbose를 만들면 서버에 연결되는 것을 볼 수 있습니다.
HTTP 서버에서 웹 페이지를 가져 오려고하면 요청한 페이지가 표시되지만 이미지, 스타일 시트, 자바 스크립트에 대한 추가 요청은 제공되지 않습니다. 그러나 curl과 같이 직접 요청하면 이러한 파일을 얻을 수 있습니다.
이것은 무언가가 포크하려고 할 때마다 내리막 길을 암시하고 있습니까?
모니터와 키보드를 서버로 드래그하고 (보통 헤드리스) 모양을 보았습니다. 스택 추적이 보입니다.
새로운 가상 터미널로 전환하여 로그인을 시도합니다. 비밀번호를 입력 한 후 스택 추적 (일반 보호 오류)이 발생합니다. 여기있어:
Jan 6 20:19:54 localhost kernel: [ 1475.178245] general protection fault: 0000 [#12] SMP
Jan 6 20:19:54 localhost kernel: [ 1475.178292] CPU 1
Jan 6 20:19:54 localhost kernel: [ 1475.178309] Modules linked in: btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs reiserfs ext2 nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc dm_crypt ppdev ipt_REJECT ipt_LOG ipt_MASQUERADE xt_state iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_filter ip_tables x_tables joydev sp5100_tco edac_core i2c_piix4 serio_raw k8temp edac_mce_amd snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore parport_pc snd_page_alloc mac_hid shpchp lp parport radeon 8139too ttm drm_kms_helper drm pata_atiixp i2c_algo_bit usbhid hid wmi r8169
Jan 6 20:19:54 localhost kernel: [ 1475.178911]
Jan 6 20:19:54 localhost kernel: [ 1475.178927] Pid: 1305, comm: login Tainted: G B D 3.2.0-35-generic #55-Ubuntu Gigabyte Technology Co., Ltd. GA-MA785GM-US2H/GA-MA785GM-US2H
Jan 6 20:19:54 localhost kernel: [ 1475.179028] RIP: 0010:[<ffffffff8116589a>] [<ffffffff8116589a>] kmem_cache_alloc+0x5a/0x140
Jan 6 20:19:54 localhost kernel: [ 1475.179096] RSP: 0018:ffff88006b251d78 EFLAGS: 00010206
Jan 6 20:19:54 localhost kernel: [ 1475.179135] RAX: 0000000000000000 RBX: 00007f062bb91000 RCX: 000000000005b2ed
Jan 6 20:19:54 localhost kernel: [ 1475.179186] RDX: 000000000005b2ec RSI: 0000000000016da0 RDI: ffff88006d408a00
Jan 6 20:19:54 localhost kernel: [ 1475.179236] RBP: ffff88006b251dc8 R08: ffff88006fa96da0 R09: 0000000000000001
Jan 6 20:19:54 localhost kernel: [ 1475.179287] R10: 00000000000000d1 R11: ffff88006b23a8f0 R12: ffff88006d408a00
Jan 6 20:19:54 localhost kernel: [ 1475.179336] R13: 2665c4979a04b7b8 R14: ffffffff811447c5 R15: 00000000000080d0
Jan 6 20:19:54 localhost kernel: [ 1475.179387] FS: 00007f062bb81700(0000) GS:ffff88006fa80000(0000) knlGS:0000000000000000
Jan 6 20:19:54 localhost kernel: [ 1475.179445] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jan 6 20:19:54 localhost kernel: [ 1475.179486] CR2: 00007f9b4d79da00 CR3: 0000000059a34000 CR4: 00000000000006e0
Jan 6 20:19:54 localhost kernel: [ 1475.179536] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jan 6 20:19:54 localhost kernel: [ 1475.179586] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jan 6 20:19:54 localhost kernel: [ 1475.179637] Process login (pid: 1305, threadinfo ffff88006b250000, task ffff880036058000)
Jan 6 20:19:54 localhost kernel: [ 1475.179695] Stack:
Jan 6 20:19:54 localhost kernel: [ 1475.179711] ffff880036058000 0000000000000041 0000000000000001 ffffffff81188cec
Jan 6 20:19:54 localhost kernel: [ 1475.179777] 0000000000000282 00007f062bb91000 ffff88006822ce00 0000000000000001
Jan 6 20:19:54 localhost kernel: [ 1475.179841] 0000000000001000 0000000000000000 ffff88006b251e88 ffffffff811447c5
Jan 6 20:19:54 localhost kernel: [ 1475.179905] Call Trace:
Jan 6 20:19:54 localhost kernel: [ 1475.179928] [<ffffffff81188cec>] ? path_openat+0xfc/0x3f0
Jan 6 20:19:54 localhost kernel: [ 1475.179971] [<ffffffff811447c5>] mmap_region+0x2a5/0x4f0
Jan 6 20:19:54 localhost kernel: [ 1475.180012] [<ffffffff81144d58>] do_mmap_pgoff+0x348/0x360
Jan 6 20:19:54 localhost kernel: [ 1475.180054] [<ffffffff81144e36>] sys_mmap_pgoff+0xc6/0x230
Jan 6 20:19:54 localhost kernel: [ 1475.180098] [<ffffffff81018b12>] sys_mmap+0x22/0x30
Jan 6 20:19:54 localhost kernel: [ 1475.180136] [<ffffffff816655c2>] system_call_fastpath+0x16/0x1b
Jan 6 20:19:54 localhost kernel: [ 1475.180180] Code: 00 4d 8b 04 24 65 4c 03 04 25 50 da 00 00 49 8b 50 08 4d 8b 28 4d 85 ed 0f 84 d8 00 00 00 49 63 44 24 20 49 8b 34 24 48 8d 4a 01 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0e 0f 94 c0 84 c0 74 c2 4d
Jan 6 20:19:54 localhost kernel: [ 1475.180503] RIP [<ffffffff8116589a>] kmem_cache_alloc+0x5a/0x140
Jan 6 20:19:54 localhost kernel: [ 1475.180552] RSP <ffff88006b251d78>
Jan 6 20:19:54 localhost kernel: [ 1475.180603] ---[ end trace 766ef1ef52f774b9 ]---
오래보고 있으면 더 일반적인 보호 결함이 나타납니다. 내가 그들을 본 적이 login, apache2, deluge-web, head, powerbtn.sh지금까지.
컴퓨터를 작동 상태로 되돌리려면 하드 리셋해야합니다 ( powerbtn.sh전원 버튼 을 눌렀을 때 일반적인 보호 오류가 발생 함).
나는 이것을 주문형으로 재생산하는 방법을 아직 알지 못했습니다. 무작위로 발생하는 것 같습니다.
유용한 경우 kern.log를 살펴보고 첫 번째 결함을 발견했습니다. 로 시작하는 행의 모두의 톤이있다 zsh, 다음 deluged, apache2, cron, head, console-kit-dae, irqbalance, nmbd... 여기의 zsh하나 직후에 오는 잘못된 페이지 상태 오류 :
Jan 6 20:13:35 localhost kernel: [ 1096.184250] general protection fault: 0000 [#1] SMP
Jan 6 20:13:35 localhost kernel: [ 1096.186339] CPU 1
Jan 6 20:13:35 localhost kernel: [ 1096.186355] Modules linked in: btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs reiserfs ext2 nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc dm_crypt ppdev ipt_REJECT ipt_LOG ipt_MASQUERADE xt_state iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_filter ip_tables x_tables joydev sp5100_tco edac_core i2c_piix4 serio_raw k8temp edac_mce_amd snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore parport_pc snd_page_alloc mac_hid shpchp lp parport radeon 8139too ttm drm_kms_helper drm pata_atiixp i2c_algo_bit usbhid hid wmi r8169
Jan 6 20:13:35 localhost kernel: [ 1096.188008]
Jan 6 20:13:35 localhost kernel: [ 1096.188008] Pid: 2564, comm: zsh Not tainted 3.2.0-35-generic #55-Ubuntu Gigabyte Technology Co., Ltd. GA-MA785GM-US2H/GA-MA785GM-US2H
Jan 6 20:13:35 localhost kernel: [ 1096.188008] RIP: 0010:[<ffffffff8116589a>] [<ffffffff8116589a>] kmem_cache_alloc+0x5a/0x140
Jan 6 20:13:35 localhost kernel: [ 1096.188008] RSP: 0018:ffff880059877d78 EFLAGS: 00010206
Jan 6 20:13:35 localhost kernel: [ 1096.188008] RAX: 0000000000000000 RBX: 00007f202c59d000 RCX: 000000000005b2ed
Jan 6 20:13:35 localhost kernel: [ 1096.188008] RDX: 000000000005b2ec RSI: 0000000000016da0 RDI: ffff88006d408a00
Jan 6 20:13:35 localhost kernel: [ 1096.188008] RBP: ffff880059877dc8 R08: ffff88006fa96da0 R09: 0000000000000001
Jan 6 20:13:35 localhost kernel: [ 1096.188008] R10: 0000000000100073 R11: ffff880059dbb2c0 R12: ffff88006d408a00
Jan 6 20:13:35 localhost kernel: [ 1096.188008] R13: 2665c4979a04b7b8 R14: ffffffff811447c5 R15: 00000000000080d0
Jan 6 20:13:35 localhost kernel: [ 1096.188008] FS: 00007f202c5ac700(0000) GS:ffff88006fa80000(0000) knlGS:0000000000000000
Jan 6 20:13:35 localhost kernel: [ 1096.188008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jan 6 20:13:35 localhost kernel: [ 1096.188008] CR2: 00000000025991f0 CR3: 0000000059dbc000 CR4: 00000000000006e0
Jan 6 20:13:35 localhost kernel: [ 1096.188008] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jan 6 20:13:35 localhost kernel: [ 1096.188008] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Jan 6 20:13:35 localhost kernel: [ 1096.188008] Process zsh (pid: 2564, threadinfo ffff880059876000, task ffff88006b6b5c00)
Jan 6 20:13:35 localhost kernel: [ 1096.188008] Stack:
Jan 6 20:13:35 localhost kernel: [ 1096.188008] 0000000000000001 0000000000001000 0000000000000001 ffffffff8129e2e0
Jan 6 20:13:35 localhost kernel: [ 1096.188008] 0000000000000001 00007f202c59d000 ffff88006822f480 0000000000000001
Jan 6 20:13:35 localhost kernel: [ 1096.188008] 0000000000001000 0000000000000000 ffff880059877e88 ffffffff811447c5
Jan 6 20:13:35 localhost kernel: [ 1096.188008] Call Trace:
Jan 6 20:13:35 localhost kernel: [ 1096.188008] [<ffffffff8129e2e0>] ? cap_vm_enough_memory+0x50/0x60
Jan 6 20:13:35 localhost kernel: [ 1096.188008] [<ffffffff811447c5>] mmap_region+0x2a5/0x4f0
Jan 6 20:13:35 localhost kernel: [ 1096.188008] [<ffffffff81144d58>] do_mmap_pgoff+0x348/0x360
Jan 6 20:13:35 localhost kernel: [ 1096.188008] [<ffffffff81144eb1>] sys_mmap_pgoff+0x141/0x230
Jan 6 20:13:35 localhost kernel: [ 1096.188008] [<ffffffff81018b12>] sys_mmap+0x22/0x30
Jan 6 20:13:35 localhost kernel: [ 1096.188008] [<ffffffff816655c2>] system_call_fastpath+0x16/0x1b
Jan 6 20:13:35 localhost kernel: [ 1096.188008] Code: 00 4d 8b 04 24 65 4c 03 04 25 50 da 00 00 49 8b 50 08 4d 8b 28 4d 85 ed 0f 84 d8 00 00 00 49 63 44 24 20 49 8b 34 24 48 8d 4a 01 <49> 8b 5c 05 00 4c 89 e8 65 48 0f c7 0e 0f 94 c0 84 c0 74 c2 4d
Jan 6 20:13:35 localhost kernel: [ 1096.188008] RIP [<ffffffff8116589a>] kmem_cache_alloc+0x5a/0x140
Jan 6 20:13:35 localhost kernel: [ 1096.188008] RSP <ffff880059877d78>
Jan 6 20:13:35 localhost kernel: [ 1096.274513] ---[ end trace 766ef1ef52f774ae ]---
Jan 6 20:13:37 localhost kernel: [ 1097.836149] BUG: Bad page state in process swapper/0 pfn:59a33
Jan 6 20:13:37 localhost kernel: [ 1097.838885] page:ffffea0001668cc0 count:0 mapcount:-1 mapping: (null) index:0xffff880059a33160
Jan 6 20:13:37 localhost kernel: [ 1097.841673] page flags: 0x100000000000000()
Jan 6 20:13:37 localhost kernel: [ 1097.844440] Modules linked in: btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs reiserfs ext2 nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc dm_crypt ppdev ipt_REJECT ipt_LOG ipt_MASQUERADE xt_state iptable_mangle iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_filter ip_tables x_tables joydev sp5100_tco edac_core i2c_piix4 serio_raw k8temp edac_mce_amd snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore parport_pc snd_page_alloc mac_hid shpchp lp parport radeon 8139too ttm drm_kms_helper drm pata_atiixp i2c_algo_bit usbhid hid wmi r8169
Jan 6 20:13:37 localhost kernel: [ 1097.856881] Pid: 0, comm: swapper/0 Tainted: G D 3.2.0-35-generic #55-Ubuntu
Jan 6 20:13:37 localhost kernel: [ 1097.860020] Call Trace:
Jan 6 20:13:37 localhost kernel: [ 1097.863063] <IRQ> [<ffffffff8111fe8f>] bad_page.part.61+0x9f/0xf0
Jan 6 20:13:37 localhost kernel: [ 1097.866119] [<ffffffff8111fef8>] bad_page+0x18/0x30
Jan 6 20:13:37 localhost kernel: [ 1097.869158] [<ffffffff8112098e>] free_pages_prepare+0x10e/0x120
Jan 6 20:13:37 localhost kernel: [ 1097.872178] [<ffffffff81120af9>] free_hot_cold_page+0x49/0x1a0
Jan 6 20:13:37 localhost kernel: [ 1097.875183] [<ffffffff81120c7d>] __free_pages+0x2d/0x40
Jan 6 20:13:37 localhost kernel: [ 1097.878163] [<ffffffff8159a8fb>] tcp_v4_destroy_sock+0x25b/0x2c0
Jan 6 20:13:37 localhost kernel: [ 1097.881105] [<ffffffff81582695>] inet_csk_destroy_sock+0x55/0x140
Jan 6 20:13:37 localhost kernel: [ 1097.883970] [<ffffffff815849b0>] tcp_done+0x50/0x90
Jan 6 20:13:37 localhost kernel: [ 1097.886853] [<ffffffff81591d92>] tcp_rcv_state_process+0x422/0x5f0
Jan 6 20:13:37 localhost kernel: [ 1097.889724] [<ffffffff8159a597>] tcp_v4_do_rcv+0xc7/0x1d0
Jan 6 20:13:37 localhost kernel: [ 1097.892513] [<ffffffff8159c1f1>] tcp_v4_rcv+0x581/0x820
Jan 6 20:13:37 localhost kernel: [ 1097.895301] [<ffffffff81577b60>] ? ip_rcv_finish+0x370/0x370
Jan 6 20:13:37 localhost kernel: [ 1097.898110] [<ffffffff81577b60>] ? ip_rcv_finish+0x370/0x370
Jan 6 20:13:37 localhost kernel: [ 1097.900915] [<ffffffff81577c3d>] ip_local_deliver_finish+0xdd/0x280
Jan 6 20:13:37 localhost kernel: [ 1097.903716] [<ffffffff81577fa8>] ip_local_deliver+0x88/0x90
Jan 6 20:13:37 localhost kernel: [ 1097.906502] [<ffffffff815778fd>] ip_rcv_finish+0x10d/0x370
Jan 6 20:13:37 localhost kernel: [ 1097.909279] [<ffffffff815781e5>] ip_rcv+0x235/0x300
Jan 6 20:13:37 localhost kernel: [ 1097.912067] [<ffffffff81613dc7>] ? packet_rcv_spkt+0x47/0x190
Jan 6 20:13:37 localhost kernel: [ 1097.914831] [<ffffffff81543446>] __netif_receive_skb+0x4d6/0x550
Jan 6 20:13:37 localhost kernel: [ 1097.917624] [<ffffffff81544230>] netif_receive_skb+0x80/0x90
Jan 6 20:13:37 localhost kernel: [ 1097.920415] [<ffffffff81536474>] ? __netdev_alloc_skb+0x24/0x50
Jan 6 20:13:37 localhost kernel: [ 1097.923124] [<ffffffffa00d6e90>] rtl8139_rx+0x150/0x2b0 [8139too]
Jan 6 20:13:37 localhost kernel: [ 1097.925754] [<ffffffffa00d704a>] rtl8139_poll+0x5a/0xd0 [8139too]
Jan 6 20:13:37 localhost kernel: [ 1097.928274] [<ffffffff81544bd4>] net_rx_action+0x134/0x290
Jan 6 20:13:37 localhost kernel: [ 1097.930698] [<ffffffff8103df8b>] ? native_safe_halt+0xb/0x10
Jan 6 20:13:37 localhost kernel: [ 1097.933115] [<ffffffff8106f6e8>] __do_softirq+0xa8/0x210
Jan 6 20:13:37 localhost kernel: [ 1097.935495] [<ffffffff810967f5>] ? do_timer+0x25/0x30
Jan 6 20:13:37 localhost kernel: [ 1097.937836] [<ffffffff81035dc2>] ? ack_apic_level+0x72/0x190
Jan 6 20:13:37 localhost kernel: [ 1097.940163] [<ffffffff8166782c>] call_softirq+0x1c/0x30
Jan 6 20:13:37 localhost kernel: [ 1097.942464] [<ffffffff81016305>] do_softirq+0x65/0xa0
Jan 6 20:13:37 localhost kernel: [ 1097.944778] [<ffffffff8106face>] irq_exit+0x8e/0xb0
Jan 6 20:13:37 localhost kernel: [ 1097.947068] [<ffffffff816680e3>] do_IRQ+0x63/0xe0
Jan 6 20:13:37 localhost kernel: [ 1097.949327] [<ffffffff8165d46e>] common_interrupt+0x6e/0x6e
Jan 6 20:13:37 localhost kernel: [ 1097.951597] <EOI> [<ffffffff8103df8b>] ? native_safe_halt+0xb/0x10
Jan 6 20:13:37 localhost kernel: [ 1097.953891] [<ffffffff810900a8>] ? hrtimer_start+0x18/0x20
Jan 6 20:13:37 localhost kernel: [ 1097.956171] [<ffffffff8101c983>] default_idle+0x53/0x1d0
Jan 6 20:13:37 localhost kernel: [ 1097.958426] [<ffffffff8101cb5d>] amd_e400_idle+0x5d/0x120
Jan 6 20:13:37 localhost kernel: [ 1097.960704] [<ffffffff81013236>] cpu_idle+0xd6/0x120
Jan 6 20:13:37 localhost kernel: [ 1097.962970] [<ffffffff816235ee>] rest_init+0x72/0x74
Jan 6 20:13:37 localhost kernel: [ 1097.965195] [<ffffffff81cfbc03>] start_kernel+0x3b0/0x3bd
Jan 6 20:13:37 localhost kernel: [ 1097.967421] [<ffffffff81cfb388>] x86_64_start_reservations+0x132/0x136
Jan 6 20:13:37 localhost kernel: [ 1097.969660] [<ffffffff81cfb140>] ? early_idt_handlers+0x140/0x140
Jan 6 20:13:37 localhost kernel: [ 1097.971888] [<ffffffff81cfb459>] x86_64_start_kernel+0xcd/0xdc
여기서 무슨 일이야? 어떡해?
1
이러한 광범위한 오류로 인해 하드웨어가 의심됩니다. 모든 하드웨어가 양호한 지 확인 했습니까?
—
Scott Severance
그러한 검증을 수행하는 방법을 보여줄 수있는 좋은 자료가 있습니까? 나는 memtest를 알고 있지만 다른 것은 없습니다.
—
tremby
이 사이트에 대한 몇 가지 좋은 질문이 있다고 생각합니다. 그러나 나는 하드웨어에 능숙하지 않습니다. 내가 당신이라면, 가장 먼저 할 일은 실제 환경 (CD 또는 플래시 드라이브)에서 시스템을 실행하고 여전히 문제가 있는지 확인하는 것입니다.
—
Scott Severance
먼저 서버의 내부를 확인합니다. 메인 보드에 문제가 없는지, 케이블이 느슨하거나, 매우 뜨거운 부품 등이 보이는가
—
qbi
memtest? 그러나 당신의 흔적이 매우 일찍 나타나는 것처럼 나는 그것이 기억적인 것임을 의심합니다. 서버에 어떤 하드웨어가 있습니까? 조정 / 오버 클로킹을 했습니까?
하드웨어 검사 외에도로드중인 커널 모듈 및 / 또는 커널 자체도 살펴 봅니다. 업그레이드시이 문제가 발생했다고 언급했습니다. 커널과 모듈 사이에 버전 불일치가 있습니까? 마찬가지로 '로그인'프로세스에 대한 결함 메시지는 '테이프 처리됨'(보통 비 무료 드라이버 / 모듈이 있음을 의미 함)을보고하고 'zsh'결함은 '오염되지 않음'을보고한다는 점입니다.
—
YellowApple