Skills/mY Technutz 2019. 4. 4. 23:19

재밌는 리턴코드가 발견되어서 간만에 좀 디깅을 해봤다.

      KERNEL: /share/linuxrpm/vmlinux_repo/64/3.10.0-693.el7.x86_64/vmlinux
    DUMPFILE: 127.0.0.1-2019-01-17-00_38_36.zip_extract/vmcore  [PARTIAL DUMP]
        CPUS: 40
        DATE: Thu Jan 17 00:38:38 2019
      UPTIME: 39 days, 18:26:52
LOAD AVERAGE: 0.19, 0.20, 0.24
       TASKS: 1420
    NODENAME: **********
     RELEASE: 3.10.0-693.el7.x86_64
     VERSION: #1 SMP Wed Aug 2 06:49:08 PDT 2017
     MACHINE: x86_64  (2199 Mhz)
      MEMORY: 63.9 GB
       PANIC: "BUG: unable to handle kernel paging request at ffffffffc0500790"
         PID: 72639
     COMMAND: "kworker/15:0"
        TASK: ffff880dc2744f10  [THREAD_INFO: ffff881052fb8000]
         CPU: 15
       STATE: TASK_RUNNING (PANIC)

crash64> log

[   37.351715] ip6_tables: (C) 2000-2006 Netfilter Core Team
[236233.529248] perf: interrupt took too long (2501 > 2500), lowering kernel.perf_event_max_sample_rate to 79000
[346636.325549] perf: interrupt took too long (3127 > 3126), lowering kernel.perf_event_max_sample_rate to 63000
[602033.211929] perf: interrupt took too long (3916 > 3908), lowering kernel.perf_event_max_sample_rate to 51000
[2952215.839114] perf: interrupt took too long (4941 > 4895), lowering kernel.perf_event_max_sample_rate to 40000
[3436125.331154] BUG: unable to handle kernel paging request at ffffffffc0500790
[3436125.331196] IP: [<ffffffffc0500790>] 0xffffffffc050078f
[3436125.331224] PGD 19f5067 PUD 19f7067 PMD 8598de067 PTE 0
[3436125.331251] Oops: 0010 [#1] SMP
[3436125.331270] Modules linked in: ip6table_filter ip6_tables sctp_diag sctp dccp_diag dccp tcp_diag udp_diag inet_diag unix_diag af_packet_diag netlink_diag binfmt_misc iptable_filter bonding sb_edac edac_core intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass ipmi_ssif crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt dcdbas iTCO_vendor_support mxm_wmi sg ipmi_si ipmi_devintf ipmi_msghandler pcspkr mei_me mei lpc_ich shpchp wmi acpi_power_meter ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic mgag200 drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm ixgbe ahci crct10dif_pclmul crct10dif_common igb crc32c_intel libahci megaraid_sas libata mdio i2c_algo_bit ptp i2c_core pps_core dca dm_mirror dm_region_hash
[3436125.331620]  dm_log dm_mod
[3436125.331629] CPU: 15 PID: 72639 Comm: kworker/15:0 Not tainted 3.10.0-693.el7.x86_64 #1
[3436125.331661] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.5.5 08/16/2017
[3436125.331721] Workqueue: xfs-cil/dm-3 xlog_cil_push_work [xfs]
[3436125.331746] task: ffff880dc2744f10 ti: ffff881052fb8000 task.ti: ffff881052fb8000
[3436125.331776] RIP: 0010:[<ffffffffc0500790>]  [<ffffffffc0500790>] 0xffffffffc050078f
[3436125.331810] RSP: 0018:ffff881052fbbca0  EFLAGS: 00010286
[3436125.331832] RAX: ffffc90007396450 RBX: ffff88100ce8dc08 RCX: 0000000000000000
[3436125.331860] RDX: 0000000000000480 RSI: ffff880c9fbd7980 RDI: ffffc900073968d0
[3436125.331887] RBP: ffff881052fbbd38 R08: 0000000000000000 R09: ffffc90007396450
[3436125.331915] R10: 0000000000000480 R11: 0000000000018d8c R12: 0000000000000480
[3436125.331943] R13: 0000000000000033 R14: 0000000000000002 R15: ffff880c9fbd7000
[3436125.331971] FS:  0000000000000000(0000) GS:ffff88105dfc0000(0000) knlGS:0000000000000000
[3436125.332002] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[3436125.332026] CR2: ffffffffc0500790 CR3: 000000067136f000 CR4: 00000000003407e0
[3436125.332053] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[3436125.332081] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[3436125.332113] Stack:
[3436125.332124]  ffff880a3aa68010 0000000000000000 ffff88085522f400 000000000c041837
[3436125.332158]  0000000000018d8c 0000000000000480 ffff88085522f528 0000000000000000
[3436125.332192]  0000000000000480 ffff881000006244 ffff880c9fbd7038 0000625000000001
[3436125.332224] Call Trace:
[3436125.332254]  [<ffffffffc04021d8>] xlog_cil_push+0x2a8/0x430 [xfs]
[3436125.332293]  [<ffffffffc0402375>] xlog_cil_push_work+0x15/0x20 [xfs]
[3436125.332322]  [<ffffffff810a881a>] process_one_work+0x17a/0x440
[3436125.332347]  [<ffffffff810a9638>] worker_thread+0x278/0x3c0
[3436125.332371]  [<ffffffff810a93c0>] ? manage_workers.isra.24+0x2a0/0x2a0
[3436125.332398]  [<ffffffff810b098f>] kthread+0xcf/0xe0
[3436125.332420]  [<ffffffff8108ddeb>] ? do_exit+0x6bb/0xa40
[3436125.332443]  [<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40
[3436125.332470]  [<ffffffff816b4f18>] ret_from_fork+0x58/0x90
[3436125.332493]  [<ffffffff810b08c0>] ? insert_kthread_work+0x40/0x40
[3436125.332518] Code:  Bad RIP value.
[3436125.332538] RIP  [<ffffffffc0500790>] 0xffffffffc050078f
[3436125.332564]  RSP <ffff881052fbbca0>
[3436125.332580] CR2: ffffffffc0500790

아쉽지만, 여기까지만 하고 다음에는 uek 와 관련된 내용으로 포스팅을 해야할것 같다.

내용을 볼수 없어서 비교가 불가하기때문이다 흑... 갑자기 용두사미가 된거같은데 뭐 내맴.



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posted by mirr

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