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IDProjectCategoryView StatusLast Update
0017879CentOS-7kernelpublic2020-11-23 02:42
Status newResolutionopen 
PlatformH3C R4900 G2OSCentOS7OS VersionCentOS7.6
Product Version7.6.1810 
Target VersionFixed in Version 
Summary0017879: BUG: unable to handle kernel paging request at 0000000105000000
DescriptionWe run centos 7.6 with kernel 3.10.0-957.27.2.el7.x86_64,which crash sometimes and I captured the kernel dump and find that is crash at below line of code:

      KERNEL: /usr/lib/debug/lib/modules/3.10.0-957.27.2.el7.x86_64/vmlinux
        CPUS: 40
        DATE: Wed Nov 18 00:55:14 2020
      UPTIME: 8 days, 05:28:47
LOAD AVERAGE: 1.33, 1.43, 1.46
       TASKS: 1199
    NODENAME: sc-network01
     RELEASE: 3.10.0-957.27.2.el7.x86_64
     VERSION: #1 SMP Mon Jul 29 17:46:05 UTC 2019
     MACHINE: x86_64 (2194 Mhz)
      MEMORY: 63.9 GB
       PANIC: "BUG: unable to handle kernel paging request at 0000000105000000"
         PID: 30288
     COMMAND: "virt-what"
        TASK: ffff8ec8d42e30c0 [THREAD_INFO: ffff8ec83ff18000]
         CPU: 10

PID: 30288 TASK: ffff8ec8d42e30c0 CPU: 10 COMMAND: "virt-what"
 #0 [ffff8ec83ff1b9f0] machine_kexec at ffffffff81e63b34
 #1 [ffff8ec83ff1ba50] __crash_kexec at ffffffff81f1e242
 #2 [ffff8ec83ff1bb20] crash_kexec at ffffffff81f1e330
 #3 [ffff8ec83ff1bb38] oops_end at ffffffff8256e778
 #4 [ffff8ec83ff1bb60] no_context at ffffffff8255cdfe
 #5 [ffff8ec83ff1bbb0] __bad_area_nosemaphore at ffffffff8255ce95
 #6 [ffff8ec83ff1bc00] bad_area_nosemaphore at ffffffff8255d006
 #7 [ffff8ec83ff1bc10] __do_page_fault at ffffffff825716d0
 #8 [ffff8ec83ff1bc80] do_page_fault at ffffffff82571925
 #9 [ffff8ec83ff1bcb0] page_fault at ffffffff8256d768
    [exception RIP: kmem_cache_alloc+116]
    RIP: ffffffff8201d6a4 RSP: ffff8ec83ff1bd68 RFLAGS: 00010282
    RAX: 0000000000000000 RBX: ffff8ec8ce69f080 RCX: 000000000149f2cc
    RDX: 000000000149f2cb RSI: 00000000000000d0 RDI: ffff8eb9f7986700
    RBP: ffff8ec83ff1bd98 R8: 000000000001f900 R9: ffffffff81e957bc
    R10: ffff8ec837bb9290 R11: 0000000000000000 R12: 0000000105000000
    R13: 00000000000000d0 R14: ffff8eb9f7986700 R15: ffff8eb9f7986700
    ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#10 [ffff8ec83ff1bda0] dup_mm at ffffffff81e957bc
#11 [ffff8ec83ff1be30] copy_process at ffffffff81e97152
#12 [ffff8ec83ff1bec0] do_fork at ffffffff81e978f1
#13 [ffff8ec83ff1bf38] sys_clone at ffffffff81e97c06
#14 [ffff8ec83ff1bf48] stub_clone at ffffffff825771b4
#15 [ffff8ec83ff1bf50] system_call_fastpath at ffffffff82576ddb
    RIP: 00007fcf4cc50fdc RSP: 00007ffdce1ec980 RFLAGS: 00000246
    RAX: 0000000000000038 RBX: 0000000000000000 RCX: ffffffffffffffff
    RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
    RBP: 00007ffdce1ec9c0 R8: 00007fcf4d596740 R9: 0000000000000000
    R10: 00007fcf4d596a10 R11: 0000000000000246 R12: 00007ffdce1ec980
    R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000000
    ORIG_RAX: 0000000000000038 CS: 0033 SS: 002b

crash> dis -l kmem_cache_alloc+116
/usr/src/debug/kernel-3.10.0-957.27.2.el7/linux-3.10.0-957.27.2.el7.x86_64/mm/slub.c: 241
0xffffffff8201d6a4 <kmem_cache_alloc+116>: mov (%r12,%rax,1),%rbx

how to fix this problem? thanks
TagsNo tags attached.




2020-11-23 02:18


vmcore-dmesg.txt (402,165 bytes)


2020-11-23 02:42

manager   ~0037978

You start by running `yum update` to get current. 7.6 is about 2 years out of date, current is 7.9.

Issue History

Date Modified Username Field Change
2020-11-23 02:18 wuhuangwei New Issue
2020-11-23 02:18 wuhuangwei File Added: vmcore-dmesg.txt
2020-11-23 02:42 TrevorH Note Added: 0037978