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在 Red Hat Enterprise Linux 7 系统发生崩溃前，在日志的 down_read_trylock 信息的前面会记录 'BUG: Bad page state in process' 事件

Solution In Progress - Updated -

Issue

  • 系统崩溃，并带有破坏或 down_read_trylock 信息

    [589570.661039] BUG: Bad page state in process cas  pfn:2207dff
    [625759.760775] BUG: Bad page map in process python  pte:80003fddf8200904 pmd:205c25d067
    [625759.880053] BUG: Bad page state in process python  pfn:2207dff
    [625760.834004] WARNING: CPU: 19 PID: 76354 at lib/list_debug.c:62 __list_del_entry+0x82/0xd0

    [531007.980839] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [531008.020282] IP: [<ffffffffa66c0519>] down_read_trylock+0x9/0x50

Environment

  • Red Hat Enterprise Linux 7
  • 启用了 THP / numa

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